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BECKWITH ELECTRIC Syncrocloser M-3410A, Instruction Book

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BECKWITH ELECTRIC Syncrocloser M-3410A Instruction Book Download Page 73

M-3410A Instruction Book

3–2

Setup Relay

Nominal Frequency:

60 Hz

50 Hz

C.T. Secondary Rating:

5A

1A

Nominal Voltage: 120

Nominal Current: 5

50 V

0.50 A

500 V

6.00 A

Delta-Y Transform

Enable

Disable

Normal
Latching

Normal
Latching

Output Contact

Mode

1

2

1

2

Open
Close

Open
Close

Input Active State:

VT Configuration:

Line to Ground

Line to Line             Line-Ground to Line-Line

User Logo:

Save

Cancel

OK LED Flash:

Enable

Disable

Relay Seal-In Time:

OUT1:  5

OUT2:  5

8160

Cycles

2

Cycles

V.T. Phase Ratio: 1

C.T. Phase Ratio: 1

V.T.

Sync

/V

g

 Ratio: 1

:1

:1

:1

1.0

1

1.0

6550.0

65500

6550.0

59/27 Mag. Select:
Phase Rotation:

RMS
ABC

DFT
ACB

Output Relay:
Deenergize to Actuate (Failsafe):
Energize to Actuate:

1

2

Figure 3-1

M-3810A IPScom for Windows Setup Relay Dialog Box

Path:

Relay menu / Setup submenu / Setup Relay command

COMMAND BUTTONS

Save

When connected to a protection system, sends the currently displayed information to the unit.
When working offline (not connected to a relay) but modifying a file, saves the currently displayed
information.

Cancel

Returns you to the IPScom main window; any changes to the displayed information are lost.

■

■

■

■

■

NOTES:

 The “active” or asserted states for the individual status inputs are:

1.

Selecting Close causes the “active” or “operated” condition to be initiated by the external contact
closing.

2.

Selecting Open causes the “active” or “operated” condition to be initiated by the external contact
opening.

Relay Setup

The relay setup consists of defining all pertinent
information regarding certain relay actions and
system quantities. The M-3810A IPScom

®

 for

Windows™ Setup Relay screen, Figure 3-1, below,
is accessed through the 

Relay/Setup, Setup Relay

menu. The M-3811A IPScom for Palm OS

®

Configuration Screens, Figures 3-2, 3-3 and 3-4 are
accessed through the 

M-3811A/Setup/

Configuration Menu. 

Regardless of the functions

enabled or disabled, all information shown is
required. Several functions require the proper setting
of these values for correct operation. The Nominal
Voltage and Nominal Current settings are needed
for proper normalization of per unit quantities. CT
and VT ratios are used only in monitoring and
displaying system primary quantities.

Summary of Contents for Syncrocloser M-3410A

Page 1: ...Instruction Book M 3410A Intertie Generator Protection Relay ...

Page 2: ...voltages 480 V or less Local and remote serial communications MODBUS protocol capability for monitoring and control functions Integrated Protection System 59 59I PHASE OV OUTPUT 2 RELAY OK DIAGNOSTIC 59G GND OV 81 O U FREQ 60FL FUSE LOSS OSC TRIGGER LOSS OF FIELD 40 PROTECTION ELECT RIC BECKWITH Made in U S A CO INC INTERTIE GENERATOR M 3410A COM 1 OVERCURRENT OUTPUT 1 VOLT UNBAL 47 51N 51V CUR UN...

Page 3: ...1 protection Standard Features 2 programmable outputs 2 programmable inputs and 1 self test output Oscillographic recording COMTRADE file format Time stamped sequence of events recording for 32 events Metering of Voltage Current real and reactive Power Power Factor Frequency and Positive Sequence Impedance One RS 232 port COM1 on front and one RS 232 or 485 port COM2 on rear M 3810A IPScom For Win...

Page 4: ...ne to line VT configuration and when functions 27G and 59G are not enabled Phase Undervoltage Pickup 1 2 4 to 100 0 1 0 5 V or 0 5 Time Delay 1 2 1 to 8160 Cycles 1 Cycle 2 Cycles Of nominal voltage When DFT is selected the time delay accuracy is 2 cycles When RMS magnitude is selected an additional time delay from 0 to 20 cycles may occur Ground Undervoltage Ground Undervoltage Ground Undervoltag...

Page 5: ...ycle 2 Cycles Inverse Time Pickup 3 to 100 0 1 0 1 A or 3 0 02 A or 3 Characteristic Curves Definite Time Inverse Time Very Inverse Extremely Inverse IEC I2 2 t K Time Dial Setting 0 5 to 11 0 0 1 0 05 to 1 1 IEC 0 01 3 Cycles or 10 1 to 95 I2 2 t K 1 For I2 2 t K Curve Only Definite Maximum Time to Trip 600 to 65 500 Cycles 1 Cycle 3 Cycles or 10 Reset Time Linear 4 minutes from threshold of trip...

Page 6: ...0 0 1 0 5 V or 0 5 Time Delay 1 2 1 to 8160 Cycles 1 Cycle 2 Cycles Of nominal voltage When DFT is selected the time delay accuracy is 2 cycles When RMS magnitude is selected an additional time delay from 0 to 20 cycles may occur Ground Overvoltage Pickup 4 to 150 1 0 5 V or 0 5 Time Delay 1 to 8160 Cycles 1 Cycle 2 Cycles Of nominal voltage This function can only be enabled when the relay is conf...

Page 7: ...cy applies to 60 Hz models at a range of 57 to 63 Hz and to 50 Hz models at a range of 47 to 53 Hz The accuracy is 0 15 Hz for a range of 52 to 57 Hz and 63 to 67 Hz for 60 Hz nominal and 42 to 47 Hz and 53 to 57 Hz for 50 Hz nominal Nominal Settings Nominal Settings Nominal Settings Nominal Settings Nominal Settings Nominal Voltage 50 to 500 V 1 V Nominal Current 0 50 to 6 00 A 0 01 A VT Configur...

Page 8: ...rtitions A programmable post trigger delay 5 to 95 is incorporated to capture breaker operation The oscillograph is triggered either remotely using the serial interface or designated status input signals or M 3410A programmable output operations Storage of oscillographic records is nonvolatile and will be retained even without power as long as the on board battery is healthy Oscillographic data ca...

Page 9: ...can have two modes of operation LATCHING and NORMAL The LATCHING mode requires an operator intervention to deactivate the outputs after the condition for operation has been removed In the NORMAL mode when the condition for tripping has been removed the output s will deactivate automatically after the corresponding seal in timers have expired Target Status Indicators and Controls The RELAY OK LED r...

Page 10: ...ircuits 1 2 μs by 50 μs 500 ohms impedance three surges at every 5 second interval Insulation Resistance IEC 60255 5 100 Megaohms Electrical Environment Electrostatic Discharge Test IEC 61000 4 2 Class 4 8 kV point contact discharge and air discharge Fast Transient Disturbance Test IEC 61000 4 4 2 kV 5 kHz AC Power Supply Input 1 kV 5 kHz RS 232 RS 485 and ground Surge IEC 61000 4 5 2 kV 1 2 μs by...

Page 11: ...sponse Class 1 0 5 g Vibration endurance Class 1 1 0 g Shock MIL STD 810C Method 516 2 Procedure 1 11 ms 15 g 1 2 sine pulse 3 pulses per axis Compliance UL Listed per 508 Industrial Control Equipment UL Listed Component per 508A Table SA1 1 Industrial Control Panels CSA Certified per C22 2 No 14 95 Industrial Control Equipment CE Safety Directive EN61010 1 1993 CAT II Pollution Degree 2 Physical ...

Page 12: ...easing to 31 C linearly to 50 relative humidity at 40 C Environment Storage area to be free of dust corrosive gases flammable materials dew percolating water rain and solar radiation See M 3410A Instruction Book Appendix F Layup and Storage for additional information Patent Warranty The M 3410A Generator Intertie Protection Relay is covered by U S Patent 5 592 393 The M 3410A Generator Intertie Pr...

Page 13: ...GND RS 485 RX TX RX RS232 COM 2 i WARNING TOP IN RETURN POWER SUPPLY 5 VA 50 60 HZ 85 150 36 75 9 36 26 27 28 F1 F2 69 480VAC 50 60 HZ NOMINAL 24 3 15A 250V F1 3 15A 250V i F2 V 4 i 3 2 1 4 OUT2 3 2 OUT1 1 4 OUT2 3 2 OUT1 1 B1 Option B2 Option B3 Option 2 3 4 1 Patent No 5 592 393 4 Figure 1 Standard Panel Layout External Connections NOTES 1 See M 3410A Instruction Book Section 2 3 External Connec...

Page 14: ... 773 3 72 4 U S A BECKWITH ELECTRIC CO INC 72 7 5 4 4 2 3 2 6 6 19 0 118 t h AVE NO WARNING IN2 IN1 IN RETURN V 3 1 4 Patent No 5 592 393 i 2 B2 Option OUT1 OUT2 1 2 3 4 B1 Option OUT1 OUT2 1 2 3 4 OUT1 OUT2 B3 Option 1 2 3 4 NRTL C LR 8 9 4 6 4 IND CONT EQ LISTED 8 3 F4 R R 4 Figure 2 Optional Horizontal and Vertical Mount Panel External Connection Layout NOTES 1 See M 3410A Instruction Book Sect...

Page 15: ... configured to use line to line VTs and the 59G function is not enabled 3 The 32 protective function in single phase detection mode is only available when the relay is configured to use line to ground VT VTs are not necessary if generator rated voltage is 480 V ac Utility System 52 Gen 32 40 81 59 47 27 M 3410A Generator Protection CT 46 51V 25 51N 60FL Power F R 59G R M 3410A Communications User ...

Page 16: ...OMTRADE User Interface with PC Communications Figure 4 Typical One Line Diagram Intertie Protection NOTES 1 The 27G and 59G protective functions are only available when the relay is configured to use line to line VTs and the 25 function is not enabled 2 The 25 protective function is only available when the relay is configured to use line to line VTs and the 27G and 59G functions are not enabled 3 ...

Page 17: ...figuration 1 A CT Configuration 9 11 13 10 12 14 M 3410A 1 9 11 13 10 12 14 M 3410A 10 12 9 11 M 3410A Three VT Wye Wye Connection 1 Two VT Open Delta Connection 1 A B C 13 14 M 3410A M 3410A OR Alternate VT connection phase voltages Alternate VT connection for sync voltage VTs are not necessary if the Nominal Rated Interconnection Voltage is 480 V ac 52b Auxiliary Contact required if 32 Underpowe...

Page 18: ...0A 3 9 11 13 10 12 14 M 3410A A B C A B C 10 12 9 11 M 3410A 3 10 12 9 11 M 3410A A B C 13 14 Three VT Wye Wye Connection Two VT Open Delta Connection 1 Alternate VT connections phase voltage Alternate VT connection or sync voltage VTs are not necessary if the Nominal Rated Interconnection Voltage is 480 V ac Voltage input for 25 function can only be used in line line VT configuration and 27G and ...

Page 19: ...NAL PA T E N T N O 5 5 9 2 3 9 3 L A R G O F L O R ID A 3 3 7 7 3 3 7 2 4 U S A B E C K W IT H E L E C T R IC C O IN C 7 2 7 5 4 4 2 3 2 6 6 19 0 118 t h A V E N O 11 63 295 35 10 00 253 95 Optional Mounting 10 50 266 70 COM 2 RS232 RS 485 i 1 9 2 3 4 5 6 7 8 10 11 12 13 14 TB1 M 3410A COM 1 INTERTIE GENERATOR PROTECTION B E C K W IT H E L E C T R IC C O I N C R CUR UNBALANCE 46 OVERCURRENT 51N 51...

Page 20: ...5 463 55 10 95 27 8 CUTOUT 0 22 0 56 2 50 63 50 3 46 87 88 3 56 90 04 0 05 0 13 REF 25 x 45 Slot 635 x 1 14 4x Figure 8 Standard 19 Rack Mount Dimensions 17 25 438 15 32 8 26 16 60 421 64 ELECT RIC Made in U S A CO INC BECKWITH R 5 38 136 65 7 31 185 67 96 24 51 OSC TRIGGER PROTECTION M 3410A GENERATOR INTERTIE COM 1 OUTPUT 1 LOSS OF FIELD 40 CUR UNBAL 46 VOLT UNBAL 47 OVERCURRENT 51N 51V OUTPUT 2...

Page 21: ...0 CURRENT UNBALANCE 46 GROUND UNDERVOLTAGE 27G 59 59I PHASE OVERVOLTAGE 60FL FUSE LOSS 59G GROUND OVERVOLTAGE 81 OVER UNDER FREQUENCY OSC TRIGGER ELECT RIC BECKWITH Made in U S A CO INC R 2 500 63 50 12 200 309 88 8 000 203 2 11 000 279 4 CUTOUT 0 625 15 87 10 750 273 05 CUTOUT 0 280 7 1 1 788 45 42 8 000 203 20 12 000 304 80 0 600 15 24 1 688 42 88 1 788 45 42 0 312 7 92 10 70 271 3 Diameter Thro...

Page 22: ...OT USED OUT3 OUT2 i OUT1 RX TX TX GND RX COM 2 RS 485 i COM 1 RS232 3 15A 250A 3 15A 250A 28 27 26 25 24 23 22 21 A I 1A 5A COM IN2 36 75 CAUTION INPUTS ONLY DRY CONTACT IN RETURN IN1 81 O U FREQUENCY 60FL FUSE LOSS 59 59I PHASE OV 59G GROUND OV OUTPUT 1 RELAY OK OUTPUT 2 DIAGNOSTIC OSC TRIGGER PHASE UV 27 POWER SUPPLY i F1 F2 R RESET TARGET OUTPUT M a d e in U S A M a d e in U S A E L E C T R IC ...

Page 23: ... 03 10 07 2001 Beckwith Electric Co Printed in U S A 11 26 02 BECKWITH ELECTRIC CO INC 6190 118th Avenue North Largo Florida 33773 3724 U S A PHONE 727 544 2326 FAX 727 546 0121 E MAIL marketing beckwithelectric com WEBPAGE www beckwithelectric com ...

Page 24: ... e en e en e en e envir vir vir vir vironment onment onment onment onment Do not operate this equipment in the presence of flammable or explosive gases or fumes To do so would risk a possible fire or explosion Keep away from live circuits Keep away from live circuits Keep away from live circuits Keep away from live circuits Keep away from live circuits Operating personnel must not remove the cover...

Page 25: ...Book A A A A Av v v v void s oid s oid s oid s oid st t t t tatic c atic c atic c atic c atic char har har har harg g g g ge e e e e This unit contains MOS circuitry which can be damaged by improper test or rework procedures Care should be taken to avoid static charge on work surfaces and service personnel Use caution when measuring resistances Use caution when measuring resistances Use caution wh...

Page 26: ...tion Considerations 3 Table 1 1 M 3410A Intertie Protection Functions 3 Table 1 2 M 3410A Generator Protection Functions 3 Singlephase Threewire 4 Single phase Two wire 4 Alternate Singlephase Twowire 4 M 3810A IPScom for Windows Communications Software 4 M 3811A IPScom for Palm OS Communications Software 4 1 3 Accessories 4 M 3933 M 0423 Serial Communication Cables 4 M 3801D IPSplot PLUS Oscillog...

Page 27: ...hree Wire Connection Diagram 14 2 4 IPScom Communications Software 15 Overview 15 Communication Protocol 15 System Requirements 15 Hardware Requirements 15 2 5 M 3810A IPScom for Windows Installation and Setup 15 Figure 2 15 IPScom Program Icon 16 2 6 M 3811A IPScom for Palm OS Installation and Setup 16 Palm Desktop Software Installation PC 16 Handheld Initialization Initial HotSync 16 Figure 2 16...

Page 28: ...tup 2 Figure 3 1 M 3810A IPScom for Windows Setup Relay Dialog Box 2 Figure 3 2 M 3811A IPScom for Palm OS Configuration Screen 1 3 Figure 3 3 M 3811A IPScom for Palm OS Configuration Screen 2 3 Figure 3 4 M 3811A IPScom for Palm OS Configuration Screen 3 3 Nominal Frequency 4 CT Secondary Rating 4 Nominal Voltage 4 Nominal Current 4 Input Active State 4 Output Contact Mode 4 VT Configuration 4 59...

Page 29: ...25 Setup Dialog Screen 1 12 Figure 3 16 M 3811A IPScom for Palm OS Sync Check 25 Setup Dialog Screen 2 12 Figure 3 17 M 3811A IPScom for Palm OS Sync Check 25 Setup Dialog Screen 3 13 27 Phase Undervoltage 3 Phase 14 Figure 3 18 M 3810A IPScom for Windows 27 Phase Undervoltage Setup Dialog Screen 14 Figure 3 19 M 3811A IPScom for Palm OS 27 Phase Undervoltage Setup Dialog Screen 15 27G 59G Undervo...

Page 30: ...Setup Dialog Screen 31 Figure 3 37 M 3811A IPScom for Palm OS 47 Negative Sequence Overvoltage Setup Dialog Screen 32 51N Inverse Time Residual Overcurrent 33 Figure 3 38 M 3810A IPScom for Windows 51N Inverse Time Residual Overcurrent Setup Dialog Screen 33 Figure 3 39 M 3811A IPScom for Palm OS 51N Inverse Time Residual Overcurrent Setup Dialog Screen 34 51V Inverse Time Overcurrent with Voltage...

Page 31: ...nection 1 4 2 Activating Communications 2 M 3810A IPScom for Windows 2 M 3811A IPScom for Palm OS 2 4 3 M 3810A IPScom for Windows Functional Description 3 Overview 3 Figure 4 1 M 3810A IPScom for Windows Menu Selections 3 File Menu 4 Figure 4 2 M 3810A IPScom for Windows New Device Profile Dialog Box 4 Comm Menu 4 Figure 4 3 M 3810A IPScom for Windows Communication Dialog Box 5 Relay Menu 6 Figur...

Page 32: ...nu 15 Figure 4 23 M 3810A IPScom for Windows About IPScom Dialog Box 15 Figure 4 24 M 3810A IPScom for Windows Primary Status Dialog Box 16 Figure 4 25 M 3810A IPScom for Windows Secondary Status Dialog Box 16 Figure 4 26 M 3810A IPScom for Windows Loss of Field Dialog Box 17 Figure 4 27 M 3810A IPScom for Windows Sync Scope 18 Figure 4 28 M 3810A IPScom for Windows Function Status Dialog Box 19 4...

Page 33: ...1A IPScom for Palm OS Primary Status Screen 2 27 Monitor Recorder Retrieve Event 27 Figure 4 52 M 3811A IPScom for Palm OS Retrieve Events Dialog 27 Figure 4 53 M 3811A IPScom for Palm OS Events Retrieved Confirmation 27 Monitor Recorder Clear Event 28 Figure 4 54 M 3811A IPScom for Palm OS Clear All Events Dialog 28 Figure 4 55 M 3811A IPScom for Palm OS Clear All Events Confirmation 28 Monitor R...

Page 34: ...et Last Power Up Time 31 Figure 4 77 M 3811A IPScom for Palm OS Get Last Power Up Time Screen 31 Monitor Misc Get Output Counters 32 Figure 4 78 M 3811A IPScom for Palm OS Get Output Counter Screen 32 Monitor Misc Load Relay Default Setpoints 32 Figure 4 79 M 3811A IPScom for Palm OS Load Relay Default Setpoints Dialog Screen 32 Figure 4 80 M 3811A IPScom for Palm OS Load Relay Default Setpoints C...

Page 35: ...r Palm OS Retrieve All Setpoints Confirmation Screen 37 Figure 4 100 M 3811A IPScom for Palm OS Save All Setpoints Dialog Screen 37 Figure 4 101 M 3811A IPScom for Palm OS Setpoints Saved To Database Confirmation Screen 37 M 3811A Options 37 M 3811A Options View Event Error 37 M 3811A Options Load All Default Setpoints 37 Figure 4 102 M 3811A IPScom for Palm OS Load All Default Setpoints Confirmat...

Page 36: ...ervoltage 12 32 Directional Power 3 Phase 1 or 2 L L L G L L 13 32 Directional Power 1 or 2 Line Ground 14 40 Loss of Field 1 or 2 15 46 Negative Sequence Overcurrent Definite Time Current Unbalance 17 46 Negative Sequence Overcurrent Inverse Time Current Unbalance Generator Protection Curve I22t K or Curve D 9 18 46 Negative Sequence Overcurrent Inverse Time Current Unbalance Intertie Protection ...

Page 37: ... Overvoltage 8 Table A 4 Relay Setpoints and Settings Record Form page 4 of 8 8 51N Inverse Time Residual Overcurrent 9 51V Inverse Time Overcurrent with Voltage Control or Restraint 9 Table A 4 Relay Setpoints and Settings Record Form page 5 of 8 9 59 Overvoltage 10 59G Ground Overvoltage 10 Table A 4 Relay Setpoints and Settings Record Form page 6 of 8 10 59I Peak Overvoltage 11 60 FL Fuse Loss ...

Page 38: ...rcurrent Curve 4 Figure D 2 Inverse Time Overcurrent Curve 5 Figure D 3 Very Inverse Time Overcurrent Curve 6 Figure D 4 Extremely Inverse Time Overcurrent Curve 7 Figure D 5 IEC Curve 1 Inverse 8 Figure D 6 IEC Curve 2 Very Inverse 9 Figure D 7 IEC Curve 3 Extremely Inverse 10 Figure D 8 IEC Curve 4 Long Time Inverse 11 Figure D 9 46 Negative Sequence Overcurrent Inverse Time Curves for Generator...

Page 39: ...xiv M 3410A Instruction Book This Page Left Intentionally Blank ...

Page 40: ...configuration and setting of the M 3410A Intertie Generator Protection Relay It describes the configuration process for the unit choosing active functions output contact assignment and input blocking designation It also illustrates the definition of system quantities equipment characteristics required by the protective relay and describes the individual function setpoints and time settings Chapter...

Page 41: ...ty supply The relay also provides detection of phase and ground faults as well as current and voltage unbalance on the utility system In addition sync check may be applied to supervise closure of the intertie breaker according to the interconnected Utility s practice The available internal functions of the relay are listed in Tables 1 1 and 1 2 The nomenclature follows the standards of ANSI IEEE S...

Page 42: ...tional Power 32 Function and metering are a function of the nominal voltage and current magnitudes in the relay it is also dependent on the needs of customer For example if the Directional Power 32 Function and metering requirements are based on the size of the power transformer the nominal current would be calculated on the basis of the transformer rating rather than the generator rating The VT c...

Page 43: ...es the actual kVA and the Secondary Status Monitoring Screen will display 1 PU of the three phase base power calculated by the relay M 3810A IPScom for Windows Communications Software IPScom for Windows is shipped standard with every M 3410A relay This software runs on a PC compatible computer operating under Windows 95 98 NT or higher When properly connected using either direct serial connection ...

Page 44: ...E Standard EN 61010 1 1993 operation of this equipment within the following service conditions does not present any known personnel hazards outside of those stated herein 5 to 40 Centigrade Maximum relative humidity 80 for temperatures up to 31 C decreasing in a linear manner to 50 relative humidity at 40 C This equipment will function properly and at stated accuracies beyond the limits of this CE...

Page 45: ... UNBALANCE 46 GROUND UNDERVOLTAGE 27G 59 59I PHASE OVERVOLTAGE 60FL FUSE LOSS 59G GROUND OVERVOLTAGE 81 OVER UNDER FREQUENCY OSC TRIGGER ELECT RIC BECKWITH Made in U S A CO INC R 2 500 63 50 12 200 309 88 8 000 203 2 11 000 279 4 CUTOUT 0 625 15 87 10 750 273 05 CUTOUT U 22050 280 U 22057 11 1 788 45 42 8 000 203 20 12 000 304 80 0 600 15 24 1 688 42 88 1 788 45 42 0 312 7 92 10 70 271 3 Figure 2 ...

Page 46: ...A B E C K W IT H E L E C T R IC C O IN C 7 2 7 5 4 4 2 3 2 6 6 19 0 118 t h A V E N O 11 63 295 35 10 00 253 95 Optional Mounting 10 50 266 70 COM 2 RS232 RS 485 i 1 9 2 3 4 5 6 7 8 10 11 12 13 14 TB1 M 3410A COM 1 INTERTIE GENERATOR PROTECTION B E C K W IT H E L E C T R IC C O I N C R CUR UNBALANCE 46 OVERCURRENT 51N 51V DIRECTIONAL PWR 32 LOSS OF FIELD 40 VOLT UNBALANCE 47 GROUND UV 27G PHASE UV...

Page 47: ...V 27G RESET 28 71 4x Figure 2 4 M 0290 and M 0296 Replacement Adapter Plate Dimensions PROTECTION INTERTIE GENERATOR M 3410A DIAGNOSTIC OSC TRIGGER 81 O U FREQUENCY 59G GROUND OV 59 59I PHASE OV 60FL FUSE LOSS COM 1 CUR UNBALANCE 46 PHASE UV 27 GROUND UV 27G LOSS OF FIELD 40 DIRECTIONAL PWR 32 OUTPUT 1 VOLT UNBALANCE 47 OVERCURRENT 51N 51V RELAY OK OUTPUT 2 TARGET OUTPUT RESET C O IN C EL ECT RIC ...

Page 48: ...SED OUT3 OUT2 i OUT1 RX TX TX GND RX COM 2 RS 485 i COM 1 RS232 3 15A 250A 3 15A 250A 28 27 26 25 24 23 22 21 A I 1A 5A COM IN2 36 75 CAUTION INPUTS ONLY DRY CONTACT IN RET URN IN1 81 O U FREQUENCY 60FL FUSE LOSS 59 59I PHASE OV 59G GROUND OV OUTPUT 1 RELAY OK OUTPUT 2 DIAGNOSTIC OSC TRIGGER PHASE UV 27 POWER SUPPLY i F1 F2 R RESET TARGET OUTPUT M a d e in U S A M a d e in U S A E L E C T R IC B E...

Page 49: ...ed with test switches and shorting devices where necessary to isolate the unit from external potential or current sources A switch or circuit breaker for the M 3410A s power shall be included in the building installation and shall be in close proximity to the relay and within easy reach of the operator and shall be plainly marked as being the power disconnect device for the relay Insulation Coordi...

Page 50: ...TERMINALS MAY CAUSE ELECTRICAL SHOCK TX OUT1 GND RS 485 RX TX RX RS232 COM 2 i WARNING TOP IN RETURN POWER SUPPLY 5 VA 50 60 HZ 85 150 36 75 9 36 26 27 28 F1 F2 69 480VAC 50 60 HZ NOMINAL 24 3 15A 250V F1 3 15A 250V i F2 V 4 i 3 2 1 4 OUT2 3 2 OUT1 1 4 OUT2 3 2 OUT1 1 B1 Option B2 Option B3 Option 2 3 4 1 Patent No 5 592 393 4 Q NOTES 1 See Section 2 3 External Connections 2 See Section 3 1 Relay ...

Page 51: ... CONTACT WITH TERMINALS LARGO FLORIDA 3 3 773 3 72 4 U S A BECKWITH ELECTRIC CO INC 72 7 5 4 4 2 3 2 6 6 19 0 118 t h AVE NO WARNING IN2 IN1 IN RETURN V 3 1 4 Patent No 5 592 393 i 2 B2 Option OUT1 OUT2 1 2 3 4 B1 Option OUT1 OUT2 1 2 3 4 OUT1 OUT2 B3 Option 1 2 3 4 NRTL C LR 8 9 4 6 4 IND CONT EQ LISTED 8 3 F4 R R 4 Q NOTES 1 See Section 2 3 External Connections 2 See Section 3 1 Relay Configurat...

Page 52: ...em 52 Gen 32 40 81 59 47 27 M 3410A Generator Protection CT 46 51V 25 51N 60FL Power F R 59G R M 3410A Communications User Interface with PC Waveform Capture COMTRADE Sequence of Events Logging Metering LED Targets Programmable I O OR Figure 2 9 One Line Connection Diagram Generator Protection ...

Page 53: ...c 59 47 27 CT M 3410A Intertie Protection 52 INT Utility System 52 Gen 81 59I 79 25 32 51V 46 60FL 51N Power F R 27G 59G Programmable I O LED Targets Metering Sequence of Events Logging Waveform Capture COMTRADE User Interface with PC Communications Figure 2 10 One Line Connection Diagram Intertie Protection ...

Page 54: ... are not necessary if the Nominal Rated Interconnection Voltage is 480 V ac 52b Auxiliary Contact required if 32 Underpower function is enabled Alternate VT connection for ground voltage 52 Gen M 3410A Typical Connection Diagram 1 2 2 2 Voltage Inputs for 25 function can only be used in line line VT configuration 10 12 9 11 M 3410A 1 14 13 Power F R R M 3410A 13 14 16 17 19 20 22 23 M 3410A 15 17 ...

Page 55: ...connection Voltage is 480 V ac Voltage input for 25 function can only be used in line line VT configuration and 27G and 59G functions are not enabled Alternate VT connection for ground voltage 1 2 M 3410A Typical Connection Diagram 13 14 Power F R 3 4 A B C A B C 13 14 13 14 M 3410A M 3410A 3 A B C 5 A CT Configuration 1 A CT Configuration 16 17 19 20 22 23 M 3410A 15 17 18 20 21 23 M 3410A 25 26 ...

Page 56: ... Nominal Voltage Vnom Va or Vb or 1 2 Vb Nominal Current Inom Ia CT Ratio or Ib CT Ratio VT Configuration Line to Ground Monitor Power Primary Status 1 5 X Actual Power Secondary Status One Per Unit of Base Power Setpoints Directional Power 32 Pickup Set at PU of 2 X KVA Three Phase Detection Disabled Notes Base Power 3 X Vnom X Inom Actual Power 2 X Vnom X Inom PU Per Unit 100 KVA Va Vb Vc 1 2 Va...

Page 57: ...Nominal Current Inom Ia CT Ratio VT Configuration Line to Ground Monitor Power Primary Status Actual Power Secondary Status 1 3 Per Unit of Base Power Setpoints Directional Power 32 Pickup Set at PU of 1 X KVA Three Phase Detection Disabled Notes Base Power 3 X Vnom X Inom Actual Power 1 X Vnom X Inom PU Per Unit 100 Function 27 and 32 Directional Power Not Available KVA Va Va Figure 2 14 Single P...

Page 58: ... Setup Relay Nominal Voltage V nom Va Nominal Current I nom Ia CT Ratio VT Configuration Line to Ground Monitor Power Primary Status 3 0 X Actual Power Secondary Status One Per Unit of Base Power Setpoints Directional Power 32 Pickup Set at PU of 1 X KVA Three Phase Detection Disabled Notes Base Power 3 X V nom X Inom Actual Power 1 X V nom X Inom PU Per Unit 100 KVA Va Va Figure 2 15 Alternate Si...

Page 59: ...col MODBUS communication protocol is implemented in the relay Only the RTU mode of the MODBUS protocol is supported The following functions are implemented in IPScom using MODBUS protocol Real time monitoring of measured parameters Interrogation and modification of setpoints Downloading of recorded oscillograph data and sequence of events data Configuration of all relay functions System Requiremen...

Page 60: ...rget Handheld is installed in the cradle 3 Initiate HotSync by selecting the HotSync button on the cradle 4 Respond to the appropriate prompts and input screens to name the handheld unit Figure 2 17 HotSync Icon M 3811A IPScom for Palm OS PC 1 Insert the IPScom for Palm OS Software CD into the CD ROM drive 2 If the CD Autorun feature does not initialize then proceed as follows a Select Start Run b...

Page 61: ...en respond with Access Granted confirmation screen 3 If communication with the subject relay is not successful then verify the applicable steps and settings of this section Tips Find other applications to install on your handheld at http www handspring com The Add button looks first in the ADD ON folder inside your C PROGRAM FILES PALM folder This folder is a convenient place to store downloaded h...

Page 62: ...audrate Parity Stop Bits Relay Access Code Address Open COM Close COM Modem Cancel Echo Cancel Add Edit Delete Save Initialize Hang Up Dial Phone Number xxx xxx xxxx X Test Location Figure 2 19 M 3810A IPScom for Windows Communication Dialog Box ...

Page 63: ...e If the phase sequence is incorrect frequency and power related functions will not operate properly If positive negative and zero sequence voltages are all present check the polarities of the VT connections and change connections to obtain proper polarities 7 The positive sequence current should be IPOS yIa yIb yIc 8 The zero sequence current should be IZERO y0A If a significant amount of negativ...

Page 64: ...0 Pos Seq V 0 0 Neg Seq V 0 0 Zero Seq V Vsync V IMPEDANCE PU R X 0 00 0 00 Positive Sequence 0 0 Figure 2 20 M 3810A IPScom for Windows Secondary Status Screen Voltage V AB 0 0 BC 0 0 CA 0 0 Seq 0 0 Seq 0 0 0 Seq 0 0 Vsync 0 0 Secondary Status Current A A 0 00 B 0 00 C 0 00 Seq 0 0 Seq 0 0 0 Seq 0 0 Figure 2 21 M 3811A IPScom for Palm OS Secondary Status Screen 1 Peak Voltage PU AB 0 00 BC 0 00 C...

Page 65: ... 1 INTERTIE GENERATOR PROTECTION VOLT UNBALANCE 47 OVERCURRENT 51N 51V OUTPUT 1 TARGET OUTPUT RESET DIAGNOSTIC RELAY OK OUTPUT 2 M 3410A PHASE U V 27 DIRECTIONAL PWR 32 LOSS OF FIELD 40 CUR UNBALANCE 46 NEUTRAL U V 27G 59 59I PHASE O V 60FL FUSE LOSS 59G NEUTRAL O V 81 O U FREQUENCY OSC TRIGGER ELECT RIC BECKWITH Made in U S A CO INC R COM 1 INTERTIE GENERATOR PROTECTION VOLT UNBALANCE 47 OVERCURR...

Page 66: ...ned to if internal the same serial port as assigned in IPScom While IPScom can use any of the four serial ports COM1 through COM4 most computers support only COM1 and COM2 c Connect the modem to the telephone line and energize the modem 2 Connecting the Modem to the Relay Setup of the modem attached to the relay involves programming the parameters using the AT command set and storing this profile ...

Page 67: ...efault configured for RS 232 To configure COM2 to RS 485 see Table 2 1 2 10 Circuit Board Switches and Jumpers See Figure 2 25 M 3410A I O Board or Figure 2 26 M 3410A Top View CPU Board for Jumper locations R E P M U J N O I T I S O P N O I T P I R C S E D O I d r a o B 2 P J 2 o t 1 f f O r o t a n i m r e T 5 8 4 S R 3 o t 2 n O r o t a n i m r e T 5 8 4 S R O I d r a o B 3 P J 2 o t 1 5 8 4 S ...

Page 68: ...e the screws that retain the rear cover lift the rear cover off the relay 3 Reconnect protective grounding terminal bottom right cover screw to an earth ground 4 Connect a jumper across JP11 Figure2 26 5 Apply power to the unit then wait for the power on self test to complete 6 Remove power from the unit then remove jumper from JP11 7 Resinstall the rear cover on the relay insert the screws that r...

Page 69: ... FB8 D31 JP1 D29 C1 RV7 FB22 C55 FB24 FB23 C57 FB25 RV3 C59 FB27 U18 TP5 FB28 F2 TB2 FB30 D32 R8 C12 C14 D4 C61 P2 F1 C45 C19 R32 R29 R10 Q2 C15 R15 C87 R13 C13 R35 C38 R31 R28 C43 U12 R23 R37 R36 R19 R16 C28 FB4 C26 C27 U15 D21 C2 C80 D8 D6 L8 C79 TP3 C50 C49 C76 R44 R34 JP4 C51 C60 C37 R50 RV6 RV9 C63 C62 1 5 TB3 C126 L4 C18 C39 C17 R30 R33 D26 L3 C88 TP12 TP6 C89 C11 TP9 J8 R27 TP11 C44 R22 R18...

Page 70: ...R57 R40 R41 R39 C47 TP1A C63 C70 JP13 R14 D6 R37 TP5A TP3A TP6A U17 C79 C64 R46 C83 R62 R61 R60 C69 C62 TP8A R44 R55 C85 C48 C73 R43 C3 L16 L18 L20 L22 L24 L48 L46 L44 L42 L40 C74 C44 C45 C71 C67 C86 R72 TP7A C78 R42 C82 R49 R53 C84 C87 C77 C76 R67 C39 D16 R3 R50 C49 R33 R16 R34 R5 C36 R48 R71 R54 C66 C65 C88 R4 R51 C40 C41 R38 R1 R69 R70 C81 C38 R17 C72 C7 C1 C4 C50 D5 1 14 13 2 J2 A C B SILKSCRE...

Page 71: ...M 3410A Instruction Book 2 28 This Page Left Intentionally Blank ...

Page 72: ...lude two programmable output contacts OUT1 and OUT2 and two programmable inputs IN1 and IN2 A self test alarm contact is also provided Enabling a relay protective function consists of entering the required settings in the individual function screens Disabling a protective function whether settings have been entered or not is accomplished by deselecting the individual protective function element nu...

Page 73: ...le saves the currently displayed information Cancel Returns you to the IPScom main window any changes to the displayed information are lost NOTES The active or asserted states for the individual status inputs are 1 Selecting Close causes the active or operated condition to be initiated by the external contact closing 2 Selecting Open causes the active or operated condition to be initiated by the e...

Page 74: ...e difference between the Send command and the Download command is that the Download command sends overwrites the entire data record file that exists on the relay Receive This command reads the individual setpoint setting from the relay into the handheld edit buffer The difference between the Receive command and the Upload command is that the Upload command receives overwrites the entire data recor...

Page 75: ...tages are used functions 27 and 59 may operate for line ground faults If this is not desired the line gnd to line line selection should be used to prevent operation of these functions for line ground faults When line gnd to line line is selected the relay internally calculates line line voltages from line ground voltages for all voltage sensitive functions This line gnd to line line selection shou...

Page 76: ...ery is healthy The general information required to complete the oscillograph setup includes Recorder Partitions The recorder s memory may be partitioned into 1 record of 120 cycles or 2 records of 80 cycles each When triggered the time stamp is recorded and the recorder continues recording for a user defined period 5 to 95 The snapshot of the waveform is stored in memory for later retrieval using ...

Page 77: ...are retained during power failure to the relay The event recorder records a new event when an output contact is asserted In addition the event recorder can be configured to trigger on the pickup of the desired functions timeout of desired functions dropout of desired functions or change of the control status inputs The M 3410A includes two event recorder modes of operation Mode 1 records all event...

Page 78: ...TION Send This command sends the individual setpoint setting contained in the Handheld edit buffer to the relay The difference between the Send command and the Download command is that the Download command sends overwrites the entire data record file that exists on the relay Receive This command reads the individual setpoint setting from the relay into the handheld edit buffer The difference betwe...

Page 79: ...ase voltage V1 and the measured DG voltage V2 with the Delta Volt limit setting Likewise the delta frequency measures the frequency difference between V1 and V2 voltage signals The logic diagram of the above is shown in Figures 3 12 and 3 13 Dead Line Dead Bus Check The Dead Volt Limit defines the Hot Dead voltage level used in deadline dead bus closing schemes When the measured V2 voltage is equa...

Page 80: ...Enabled Delta F Is Enabled F 1 F 2 Delta F Limit With Delta V OR Delta F Enabled With Delta V AND Delta F Enabled V1pos Dead Limit Dead V1 Hot V2 Enabled V2 Dead Limit Dead V2 Hot V1 Enabled V1pos Dead Limit V2 Dead Limit V2 Dead Limit Dead V1 V2 Enabled V1pos Dead Limit V2 Dead Limit Dead V1 Hot V2 Enabled V1pos Dead Limit V1pos Dead Limit V2 Dead Limit AND Dead V2 Hot V1 Enabled Selected INPUT I...

Page 81: ... Line Dead Bus Logic Dead Line Dead Bus Check Input Initiate Logic From Figure 3 12 79 Supervise 25 Function Logic Phase Angle Delta V and Delta F Logic Dead Line Dead Bus Logic Dead Line Dead Bus Check Input Initiate Logic From Figure 3 12 79 Reconnect Logic From Figure 3 49 79 Supervise 25 Enabled From Figure 3 12 25 Output Contact 25 Output Contact AND AND AND OR OR OR OR 1 2 3 1 2 3 Figure 3 1...

Page 82: ...0 8160 Cycles 50 0 8160 Cycles 1 Save Cancel Delta Voltage 10 1 0 50 0 Enable Disable Enable Disable Delta Frequency 0 1 0 001 Hz 0 500 Hz Dead Input Initiate Supervised by Function 79 Phase Selection AB BC Outputs Blocking Inputs Figure 3 14 M 3810A IPScom for Windows 25 Sync Check Setup Dialog Screen Path Relay Setup Setpoints 25 Sync Check COMMANDS Send Sends all entered information to the cont...

Page 83: ... 0 1 8160 cyc Enable Disable Sync Check 25 Figure 3 15 M 3811A IPScom for Palm OS Sync Check 25 Setup Dialog Screen 1 Delta V 8 3 1 0 50 0 Sync Check 25 Enable Disable Enable Disable Delta F 0 100 0 001 0 500 Hz Dead V1 Hot V2 Hot V1 Dead V2 Dead V1 Dead V2 Supervised by 79 Sync Check Phase AB BC Figure 3 16 M 3811A IPScom for Palm OS Sync Check 25 Setup Dialog Screen 2 ...

Page 84: ...elay into the handheld edit buffer The difference between the Receive command and the Upload command is that the Upload command receives overwrites the entire data record file that exists on the handheld unit Save This command saves the individual setpoint setting from the handheld edit buffer to the handheld data record A successful Save operation will result in a Save confirmation Retrieve This ...

Page 85: ... accurate over a wide frequency range 10 to 80 Hz and an additional time delay of 20 cycles beyond the set delay may occur If DFT is selected the magnitude calculation is accurate near 50 or 60 Hz and the timer accuracy is 2 cycles RMS selection is recommended for generator protection applications as RMS calculations are accurate over a wide frequency range Intertie Protection Voltage is commonly ...

Page 86: ...and reads the individual setpoint setting from the relay into the handheld edit buffer The difference between the Receive command and the Upload command is that the Upload command receives overwrites the entire data record file that exists on the handheld unit Save This command saves the individual setpoint setting from the handheld edit buffer to the handheld data record A successful Save operati...

Page 87: ...d neutral inversion An alternate but not recommended scheme uses the 27G and 59G devices with one VT rated for line to line voltage but connected from any one phase to ground as shown in Figure 3 21 This scheme will detect the most common line to ground faults on systems supplied by an ungrounded source in the following manner A fault on the phase that includes the VT will pull that phase voltage ...

Page 88: ...r a b c 59G Resistor To Dispersed Storage and Generation DSG To Utility Figure 3 20 Ground Fault Detection Using a Broken Delta VT and 59G A B C Power Transformer a b c To Dispersed Storage and Generation DSG To Utility V L L Fault on phase a V 0 27G detects Undervoltage 27G 59G R Fault on phase b or c V VLL 59G detects Overvoltage Figure 3 21 Ground Fault Detection Using One Phase to Ground VT an...

Page 89: ...nd Overvoltage X 1 Outputs Blocking Inputs 2 1 2 1 FL Pickup Delay 4 1 Cycle 150 8160 Cycles Figure 3 23 M 3810A IPScom for Windows 59G Ground Overvoltage Setup Dialog Screen Path Relay Setup Setpoints 27G Ground Unvdervoltage or 59G Ground Overvoltage COMMAND BUTTONS Save Saves all entered information to the control Cancel Returns you to the previous window any changes to displayed information ar...

Page 90: ...ad command sends overwrites the entire data record file that exists on the relay Receive This command reads the individual setpoint setting from the relay into the handheld edit buffer The difference between the Receive command and the Upload command is that the Upload command receives overwrites the entire data record file that exists on the handheld unit Save This command saves the individual se...

Page 91: ...lay The setting range is from 3 00 PU to 3 00 PU The choice of the base PU is typically taken from the MVA rating of the interconnection transformer the DG s aggregate generating capacity or some other value agreed upon by the DG and the Utility Normalized PU power flow measurements are based on the Nominal Voltage and Nominal Current setting as shown in Section 3 1 Relay Configuration Relay Setup...

Page 92: ...ort DG Export Export Utility Import Reverse Relay Forward Import DG Export Export Utility Import Reverse Relay Forward Import DG Export Export Utility Import Figure 3 26 Directional Power Configurations 32 1 2 Delay Power relays should be applied with a time delay to prevent mis operation during power swing heavy load pick up or heavy load rejection conditions 32 Underpower The 32 function must be...

Page 93: ...00 PU 8160 Cycles Under Power Over Power X Enable Disable Three Phase Detection Enable Disable Three Phase Detection Under Power Over Power Figure 3 27 M 3810A IPScom for Windows 32 Directional Power Setup Dialog Screen Path Relay Setup Setpoints 32 Directional Power COMMAND BUTTONS Save Saves all entered information to the control Cancel Returns you to the previous window any changes to displayed...

Page 94: ...his command reads the individual setpoint setting from the relay into the handheld edit buffer The difference between the Receive command and the Upload command is that the Upload command receives overwrites the entire data record file that exists on the handheld unit Save This command saves the individual setpoint setting from the handheld edit buffer to the handheld data record A successful Save...

Page 95: ...n be set in PU quantities The PU impedance is based on the nominal voltage and nominal current setting The first approach is shown in Figure 3 29 Here both of the offset mho elements 1 and 2 are set with an offset of X d 2 where X d is the direct axis transient reactance unsaturated of the generator The diameter of the smaller circle 1 is set at 1 0 PU impedance on the machine base This mho elemen...

Page 96: ... Loss of Excitation Final Impedance Locus Figure 3 29 Loss of Field 40 Protective Approach 1 X R R X Underexcited 1 1 Xd X d 2 13 XT Minimum Exciter Limit Machine Capability Steady State Stability Limit Directional Element Heavy Load Light Load Loss of Excitation Final Impedance Locus Block Direction Trip Direction Figure 3 30 Loss of Field 40 Protective Approach 2 ...

Page 97: ...2 00 PU 8160 Cycles Circle Diameter Offset Delay Voltage Control Enable Disable Voltage Control 4 0 100 0 2 1 2 1 2 1 FL 2 1 FL Figure 3 31 M 3810A IPScom for Windows 40 Loss Of Field Setup Dialog Screen Path Relay Setup Setpoints 40 Loss of Field COMMAND BUTTONS Save Saves all entered information to the control Cancel Returns you to the previous window any changes to displayed information are los...

Page 98: ...ile that exists on the relay Receive This command reads the individual setpoint setting from the relay into the handheld edit buffer The difference between the Receive command and the Upload command is that the Upload command receives overwrites the entire data record file that exists on the handheld unit Save This command saves the individual setpoint setting from the handheld edit buffer to the ...

Page 99: ... from damage due to recurring unbalance is a linear reset characteristic When I2 decreases below the pickup value the trip timer takes four minutes to reset from its 100 trip level Figure D 9 Negative Sequence Overcurrent Inverse Time Curves for Generator Protection illustrates the inverse time characteristic of the negative sequence overcurrent function Operating times are lower than what is show...

Page 100: ... 2 1 FL Curves Definite Time Inverse Time Very Inverse Extremely Inverse IECI IECVI IECEI IECLTI I Square t K Figure 3 33 M 3810A IPScom for Windows 46 Negative Sequence Overcurrent Setup Dialog Screen Path Relay Setup Setpoints 46 Negative Sequence Overcurrent COMMAND BUTTONS Save Saves all entered information to the control Cancel Returns you to the previous window any changes to displayed infor...

Page 101: ...ence between the Send command and the Download command is that the Download command sends overwrites the entire data record file that exists on the relay Receive This command reads the individual setpoint setting from the relay into the handheld edit buffer The difference between the Receive command and the Upload command is that the Upload command receives overwrites the entire data record file t...

Page 102: ... previous window any changes to displayed information are lost NOTE Pickup percentage is based on Nominal Voltage 47 Negative Sequence Overvoltage Voltage Unbalance The Negative Sequence Overvoltage function 47 provides protection for voltage unbalance and reverse phase sequence Voltage unbalance can occur from blown fuses on transformers open conductors load unbalance and other single phase event...

Page 103: ...is command reads the individual setpoint setting from the relay into the handheld edit buffer The difference between the Receive command and the Upload command is that the Upload command receives overwrites the entire data record file that exists on the handheld unit Save This command saves the individual setpoint setting from the handheld edit buffer to the handheld data record A successful Save ...

Page 104: ...indow any changes to displayed information are lost 51N Inverse Time Residual Overcurrent The Inverse Time Residual Overcurrent 3I0 function 51N provides protection against ground faults Since normal residual current is usually much lower than the full load phase current this function can be set more sensitively than the phase overcurrent protection The setting and time delay should be coordinated...

Page 105: ...eceive This command reads the individual setpoint setting from the relay into the handheld edit buffer The difference between the Receive command and the Upload command is that the Upload command receives overwrites the entire data record file that exists on the handheld unit Save This command saves the individual setpoint setting from the handheld edit buffer to the handheld data record A success...

Page 106: ...e of the coordination requirements with other devices in the system that respond to time overcurrent When voltage restraint is selected the pickup of the 51V is modified continuously according to the voltage inputs as shown in Figure 3 40 The relay continues to operate independently of current decrement in the machine The voltage restraint function is well suited to small generators with relativel...

Page 107: ...Dial 0 50 A 0 5 12 00 A 11 0 Outputs Blocking Inputs 2 1 2 1 FL 1 51V Inverse Time Overcurrent with Voltage Control or Voltage Restraint X IECI IECVI IECEI IECLTI Curves Definite Time Inverse Time Very Inverse Extremely Inverse Voltage Control 4 0 150 0 Disable Voltage Control Voltage Restraint Figure 3 41 M 3810A IPScom for Windows 51V Inverse Time Overcurrent with Voltage Control or Voltage Rest...

Page 108: ...d file that exists on the relay Receive This command reads the individual setpoint setting from the relay into the handheld edit buffer The difference between the Receive command and the Upload command is that the Upload command receives overwrites the entire data record file that exists on the handheld unit Save This command saves the individual setpoint setting from the handheld edit buffer to t...

Page 109: ...setting See Section 3 1 Relay Configuration Relay Setup When the RMS option is selected the magnitude calculation is accurate over a wide frequency range 10 to 80 Hz and an additional time delay of 20 cycles beyond the set delay may occur If DFT is selected the magnitude calculation is accurate near 50 or 60 Hz and the timer accuracy is 2 cycles RMS selection is recommended for generator protectio...

Page 110: ...mand reads the individual setpoint setting from the relay into the handheld edit buffer The difference between the Receive command and the Upload command is that the Upload command receives overwrites the entire data record file that exists on the handheld unit Save This command saves the individual setpoint setting from the handheld edit buffer to the handheld data record A successful Save operat...

Page 111: ...plies a system experiencing ferroresonance is in resonance but the inductance is highly nonlinear being variable as the transformer core cycles in and out of magnetic saturation At this time the voltage waveform will be expected to be very rich in harmonics to the extent that it is possible that the peak voltage of the nonsinusoidal wave will be dangerously high even though the RMS value of the sa...

Page 112: ...sts on the relay Receive This command reads the individual setpoint setting from the relay into the handheld edit buffer The difference between the Receive command and the Upload command is that the Upload command receives overwrites the entire data record file that exists on the handheld unit Save This command saves the individual setpoint setting from the handheld edit buffer to the handheld dat...

Page 113: ...ditional supervising condition includes a minimum positive sequence voltage to assure VT inputs are being applied to the relay For the specific application where the above logic cannot be considered reliable such as when current inputs to the relay are not connected sustained positive sequence current during fault conditions is minimal or negative sequence currents are not present during fault con...

Page 114: ...oint setting from the relay into the handheld edit buffer The difference between the Receive command and the Upload command is that the Upload command receives overwrites the entire data record file that exists on the handheld unit Save This command saves the individual setpoint setting from the handheld edit buffer to the handheld data record A successful Save operation will result in a Save conf...

Page 115: ...unique in that it is not considered a tripping function and therefore does not trigger event storage by default The 79 Function is enabled and its output selected through the relay setpoints screen just as other functions In addition to the time delay setting the reconnect function requires the user to designate which outputs are defined as trip outputs The reconnect relay will initiate timing whe...

Page 116: ...able Time Delay Setup Dialog Screen Save Cancel 79 Reconnect X 1 Outputs Blocking Inputs 2 1 2 1 FL Reconnect Initiate 2 1 FL Delay 2 Cycles 65500 Cycles Figure 3 50 M 3810A IPScom for Windows 79 Reconnect Enable Time Delay Setup Dialog Screen Path Relay Setup Setpoints 79 Reconnect COMMAND BUTTONS Save Saves all entered information to the control Cancel Returns you to the previous window any chan...

Page 117: ...ncy load shedding program These capabilities are given by a description of areas of prohibited operation restricted time operation and continuous allowable operation The underfrequency function is usually connected to trip the machine whereas the overfrequency function is generally connected to an alarm In order to prevent mis operation during switching transients the time delay should be set to g...

Page 118: ...81 Under Frequency Hz Trip Trip Over Frequency Time Delay 2 Over Frequency Time Delay 1 Under Frequency Time Delay 4 Under Frequency Time Delay 3 Over Frequency Magnitude 1 Under Frequency Magnitude 4 Over Frequency Magnitude 2 Under Frequency Magnitude 3 Figure 3 52 Example of Over Under Frequency 81 Trip Characteristics ...

Page 119: ... Hz 65500 Cycles 2 2 1 1 FL 4 Pickup Delay Outputs Blocking Inputs 50 00 Hz 2 Cycles 67 00 Hz 65500 Cycles 2 2 1 1 FL Save Cancel Figure 3 53 M 3810A IPScom for Windows 81 Over Under Frequency Setup Dialog Screen Path Relay Setup Setpoints 81 Over Under Frequency COMMAND BUTTONS Save Saves all entered information to the control Cancel Returns you to the previous window any changes to displayed inf...

Page 120: ...ve This command reads the individual setpoint setting from the relay into the handheld edit buffer The difference between the Receive command and the Upload command is that the Upload command receives overwrites the entire data record file that exists on the handheld unit Save This command saves the individual setpoint setting from the handheld edit buffer to the handheld data record A successful ...

Page 121: ...M 3410A Instruction Book 3 50 This Page Left Intentionally Blank ...

Page 122: ...r Palm OS handheld unit The second serial communication port COM2 is located at the rear of the unit COM2 can be configured as a standard 9 pin RS 232 DTE port or as a 4 wire RS 485 port see Chapter 2 Installation for port configuration Either port COM1 or COM2 may be used to remotely set and interrogate the relay using a modem or other direct serial connection Equipment such as RTU s data concent...

Page 123: ...location then select Dial This action establishes contact and automatically opens com munication to the relay b If the computer is directly connected to the relay through either COM1 or COM2 select Open COM This action establishes communications 4 Enter any valid IPScom command s as desired 5 To end communication when communicating by modem choose the Hang Up command from the expanded Communicatio...

Page 124: ...unicate directly with the relay Setup u Monitor u Event Recorder u Oscillograph u Write File to Relay Read Data from Relay Unit Properties Help Contents About New Ctrl N Open Ctrl O Close Save Ctrl S Save As Print Ctrl P Print Setup Exit File Tools File Relay IPScom Comm Help This menu command opens the Communication Dialog box Primary Status Secondary Status Loss of Field Sync Scope Function Stat...

Page 125: ... initialize Following initialization select an entry from the modem list and select Dial to dial out If the modem was not used to establish communication direct connection select Open COM to start If the relay has a default communication access code of 9999 a message window will appear showing access level 3 was granted Otherwise another dialog box will appear to prompt the user to enter the acces...

Page 126: ...m Displays the expanded Communication dialog box Cancel Returns you to the IPScom main window any changes to the displayed information are lost Add Displays the Add Edit dialog box allowing you to type a protective system s unit identifier phone number and communication address Edit Displays the Add Edit dialog box allowing you to review and change the user lines unit identifier phone number and c...

Page 127: ...A 1A Nominal Voltage 120 Nominal Current 5 50 V 0 50 A 500 V 6 00 A Delta Y Transform Enable Disable Normal Latching Normal Latching Output Contact Mode 1 2 1 2 Open Close Open Close Input Active State VT Configuration Line to Ground Line to Line Line Ground to Line Line User Logo Save Cancel OK LED Flash Enable Disable Relay Seal In Time OUT1 5 OUT2 5 8160 Cycles 2 Cycles V T Phase Ratio 1 C T Ph...

Page 128: ... setpoint configuration values Choosing the Configure command displays the Configure dialog box see Figure 4 8 which contains a chart of programmed input and output contacts in order to allow scrolling through all relay output and blocking input configurations Both dialog boxes All Setpoint Table and Configure feature hotspots which allows the user to jump from a scrolling dialog box to an individ...

Page 129: ...Input initiate Upper Voltage Limit Dead Voltage Limit Delta Frequency Hot V1 Dead V2 Supervised by Function 79 Lower Voltage Limit Dead Time Delay Phase Selection Dead V1 Dead V2 1 Pickup 90 0 Delay 60 Cycles 32 Directional Power 40 LossofField 1 1 2 2 Pickup w0 02 PU Delay 60 Cycles Overpower Enable Three Phase Detection Pickup Delay Circle Diam 1 00 PU Offset 0 10 PU Delay 10 Cycles Circle Diam ...

Page 130: ...oltage 51N Inv Time Residual Overcurrent 51V Inv Time Overcurrent 59 Overvoltage 59G Ground Overvoltage 59I Peak Overvoltage 60FL VT Fuse Loss 79 Reconnect 81 Frequency 1 2 1 2 1 2 1 2 1 2 1 2 3 4 Def Time Inv Time Figure 4 8 M 3810A IPScom for Windows Configure Dialog Box Path Relay menu Setup submenu Setpoints window Configure command button The Set Date Time command allows relay date and time t...

Page 131: ... the status of various functions including trip and pickup status see Figure 4 28 Relay Setup Monitor Event Recorder Oscillograph Write File to Relay Read Data From Relay Unit Properties Primary Status Secondary Status Loss of Field Sync Scope Function Status The Event Recorder submenu provides three command options Setup Display and Clear History Relay Setup Monitor Event Recorder Oscillograph Wr...

Page 132: ...y Unit Properties Setup Retrieve Trigger Clear The Setup command allows the user to set the number of records and triggering designations to be made 1 2 1 2 X Setup Oscillograph Recorder Number of Records Trigger Inputs 1 2 Trigger Outputs Post Trigger Delay 5 Send Cancel Figure 4 12 M 3810A IPScom for Windows Setup Oscillograph Recorder Dialog Box The Retrieve command downloads and stores collect...

Page 133: ... L s e r u t a e F l l A e l i F R R R s e r u t a e F l l A m m o C R R R y a l e R p u t e S p u t e S y a l e R R R W R s t n i o p t e S p u t e S y a l e R R W R W R e m i T e t a D t e S p u t e S y a l e R R W R W R s e r u t a e F l l A r o t i n o M y a l e R W R W R W R p u t e S r e d r o c e R t n e v E y a l e R R W R W R y a l p s i D r e d r o c e R t n e v E y a l e R R W R W R y r...

Page 134: ...Relay Test window that includes three relay tests which provide a means to test input and outputs and relay communication ports Also included in Diagnostics is a Current Status screen which includes a time stamped relay software error log that can be reset an output counter that also can be reset and the time and date of the last relay power up Input Output Test Relay Test Input Test Output Test I...

Page 135: ...was fully calibrated the factory and there is no need to recalibrate Do you really want to recalibrate it now Yes No Figure 4 18 M 3810A IPScom for Windows Calibration Relay Software Update Command This command automatically downloads and installs any updates to the relay resident software Relay Software Update X File Name Browse OK Cancel Status Figure 4 19 M 3810A IPScom for Windows Relay Softwa...

Page 136: ...acket Size Regular Minimum Show Time Delay Cycles Milliseconds X Option OK Cancel Communication Retry Communication Timeout Sec 2 2 Figure 4 22 M 3810A IPScom for Windows Option Dialog Box Window Menu Help Menu Window Cascade Tile Arrange Icons The Window menu enables the positioning and arrangement of all IPScom windows so that there is better access to available functions This feature allows the...

Page 137: ... Primary Status window These are calculated values based on the VT and CT inputs Secondary Status X OUTPUT INPUT 2 1 FL 2 1 POWER FREQUENCY Real PU 0 0000 Reactive PU 0 0000 Apparent PU 0 0000 Power Factor LEAD 0 00 D i s a b l e d Hz CURRENT 0 000 Zero Seq A 0 000 Neg Seq A 0 000 Pos Seq A 0 000 Phase C A 0 000 Phase B A 0 000 Phase A A PEAK VOLTAGE 0 00 Phase A PU 0 00 Phase B PU 0 00 Phase C PU...

Page 138: ...6 M 3810A IPScom for Windows Loss of Field Dialog Box Path Relay menu Monitor submenu Loss of Field window Loss of Field window shows a graphic representation of loss of field settings and also displays the positive sequence impedance CONTROL BUTTONS Move up the scope window Move down the scope window Move the scope window to the left Move the scope window to the right Zoom In Zoom Out Refresh Sco...

Page 139: ... Delta Freq 0 023 Hz SLOW FAST 330 300 270 240 210 180 150 120 90 60 30 0 Figure 4 27 M 3810A IPScom for Windows Sync Scope CAUTION The M 3410A Sync Scope should not be used to determine in phase conditions for manual synchronizing because of possible communications time delay ...

Page 140: ...q Overcurrent 47 1 Neg Seq Overvoltage 47 2 Neg Seq Overvoltage 51N Inv T Residual OC 51V Inv T OC with Volt Ctrl 59 1 Phase Overvoltage 59 2 Phase Overvoltage 59G Ground Overvoltage 59I Peak Overvoltage 60FL VT Fuse Loss Detection 79 Reconnect 81 1 Over Under Frequency 81 2 Over Under Frequency 81 3 Over Under Frequency 81 4 Over Under Frequency Outputs Inputs 2 1 FL 2 1 Reset Target LEDs Outputs...

Page 141: ...andheld unit includes a Fixed Menu that is available to the user in either the OS operating system or within the IPScom for Palm OS program Figure 4 29 Palm OS Fixed Menu The following features relevant to IPScom for Palm OS are available on the Fixed Menu Selecting the Home icon top left will return the user to the handheld desktop Selecting the Menu icon bottom left will display the applicable m...

Page 142: ... To M 3410 Receive From M 3410 Save To Database Retrieve From Database Load Default From Database to Function Monitor Secondary Status Function Status Primary Status Done Monitor Recorder Misc Recorder Retrieve Event Clear Event View Event Retrieve Error Clear Error View Error Retrieve Oscillograph Clear Oscillograph Trigger Oscillograph Misc Reset Target Output Clear Output Counter 1 Clear Output...

Page 143: ...s Commands and Features that can be directly accessed from the Main Screen in either the Connected or Disconnected mode include Disconnect Connect Figures 4 32 and 4 33 individual relay features and functions 25 27 27G 32 40 46DT 46IT 47 51N 51V 59 59G 59I 60FL 79 and 81 See Section 3 Configuration and Settings for information about setting the relay protective functions relay configurations and o...

Page 144: ...rmines if User Access Security has been invoked If an incorrect Communication Access code is entered then the handheld will respond with an error message Security Invalid communication access code OK Figure 4 36 M 3811A IPScom for Palm OS Invalid Access Code Error Screen If the default User Access Code present on the relay is 9999 default then the relay will respond with a Security Dialog Screen F...

Page 145: ... parameters The interaction of data between the handheld handheld edit Buffer and the M 3410A is illustrated below Palm OS Database Records M 3410A Data Records Saved Setpoints Settings Default Setpoints Settings Saved Oscillograph Data Palm OS Edit Buffer Setpoints Settings Oscillograph Data Retrieve Individual Retrieve All Save Individual Save All Send Individual Upload All Load Individual Recei...

Page 146: ...s from the relay OK Figure 4 40 M 3811A IPScom for Palm OS Upload Dialog Screen If OK is selected then a Receive confirmation dialog screen is displayed The user is prompted to confirm the Upload by selecting OK Receive Setpoints received from the relay OK Figure 4 41 M 3811A IPScom for Palm OS Receive Confirmation Screen CAUTION When Downloading the data record on the M 3410A is overwritten by th...

Page 147: ... AB 0 00 BC 0 00 CA 0 00 Power PU Real 0 0000 Reactive 0 0000 App 0 0000 PF 0 0000 Impedance Seq PU R 0 00 X 0 00 Frequency Hz 0 0 Secondary Status Figure 4 45 M 3811A IPScom for Palm OS Secondary Status Screen 2 Monitor Function Status The Function Status feature provides the user with the online connected status of the relay protective Functions Outputs and Inputs The status information is prese...

Page 148: ... CA 0 2 Seq 0 0 Seq 0 0 0 Seq 0 0 Vsync 0 0 Primary Status Current A A 0 02 B 0 01 C 0 00 Seq 0 0 Seq 0 0 0 Seq 0 0 Figure 4 50 M 3811A IPScom for Palm OS Primary Status Screen 1 Power Real W 296 Apparent VA 295 Reactive VAr 3 PF 0 67 Frequency Hz 60 00 Primary Status Figure 4 51 M 3811A IPScom for Palm OS Primary Status Screen 2 Monitor Recorder Retrieve Event This feature enables the user to ret...

Page 149: ...A 0 3 Current A A 0 01 B 0 00 C 0 02 Event Date Time 01 10 09 16 01 37 0264 Figure 4 56 M 3811A IPScom for Palm OS Event Data Screen 1 Event Function Pickup Timeout Dropout 25 7 7 7 27 1 7 7 7 27 2 7 7 7 27G 7 7 7 32 1 7 7 7 32 2 7 7 7 40 1 7 7 7 40 2 7 7 7 Figure 4 57 M 3811A IPScom for Palm OS Event Data Screen 2 Event Function Pickup Timeout Dropout 46DT 7 7 7 46IT 7 7 7 47 1 7 7 7 47 2 7 7 7 5...

Page 150: ... allows the user to view errors see Appendix C Self Test Error Codes that have been retrieved from the M 3410A The error codes are presented in Figure 4 64 Up to four of the most recent error codes available at the time of the error code retrieval will be displayed Secondary Status Error Recorder Date Time 01 09 10 15 27 30 0578 01 09 20 10 31 0016 Code 0029 0028 OK Figure 4 64 M 3811A IPScom for ...

Page 151: ...ect OK to issue the Clear Oscillograph command to the M 3410A or Cancel Oscillograph Recorder Clear all oscillographs OK Cancel Figure 4 68 M 3811A IPScom for Palm OS Clear Oscillograph Dialog Screen If OK is selected then a Clear Oscillograph command is sent to the M 3410A followed by a command confirmation Oscillograph Recorder Clear all oscillographs command sent OK Figure 4 69 M 3811A IPScom f...

Page 152: ...ws the user to clear either Output Counter 1 or Output Counter 2 The Output Counters are cumulative counters that record each relay output in either the Normal or Latching mode Selecting Clear Output Counter 1 2 initiates a dialog screen Figure 4 74 The user can select OK to reset Output Counter 1 2 or Cancel Output Counter Clear Output Counter 1 OK Cancel Figure 4 74 M 3811A IPScom for Palm OS Cl...

Page 153: ...m for Palm OS Main Screen menu features Figure 4 31 are initiated by selecting either M 3811A or Monitor from the Main Screen or the Menu icon bottom left on handheld Fixed Menu Non Deluxe model Visor handheld may require utilization of the Menu icon in lieu of selecting M 3811A for menu access The menu functions that result from selecting M 3811A from the Main Screen provide the user with the mea...

Page 154: ...ed to the database OK Figure 4 84 M 3811A IPScom for Palm OS Save Confirmation Screen Action Retrieve This command loads the setpoint setting values that correspond to the displayed edit screen from the handheld data record into the handheld edit buffer A successful Retrieve operation will result in a Retrieve confirmation Figure 4 85 Retrieve Setpoints retrieved from the database OK Figure 4 85 M...

Page 155: ...Delta Y Transform Configuration L G L L LG LL Enable Disable 5A 1A Figure 4 88 M 3811A IPScom for Palm OS Configuration Screen 2 Input Active State Configuration 1 2 Open Close Open Close Normal Latching Output Contact Mode 1 2 Normal Latching Relay Seal In Time Out1 30 2 to 8160 Cycles Out 2 30 2 to 8160 Cycles Output Relay Actuate Energize Deenergize FS Energize Deenergize FS Figure 4 89 M 3811A...

Page 156: ... Mode 1 Mode 2 Inputs Active Inactive 1 9 9 2 9 9 Figure 4 91 M 3811A IPScom for Palm OS Setup Event Recorder Screen 1 Event Function Pickup Timeout Dropout 25 9 9 9 27 1 9 9 9 27 2 9 9 9 27G 9 9 9 32 1 9 9 9 32 2 9 9 9 40 1 9 9 9 40 2 9 9 9 Figure 4 92 M 3811A IPScom for Palm OS Setup Event Recorder Screen 2 Event Function Pickup Timeout Dropout 46DT 9 9 9 46IT 9 9 9 47 1 9 9 9 47 2 9 9 9 51N 9 9...

Page 157: ...bles the user to set or change the M 3410A User Level and Communication Access codes There are four 4 access codes all default 9999 Communication Access Code User Access Level 1 Code User Access Level 2 Code User Access Level 3 Code For Communication and User Access Level Code Privileges see Table 4 1 page 4 12 After the desired user and or communication access code has been entered see below the ...

Page 158: ... Setpoints Saved To Database Confirmation Screen M 3811A Options The Options menu item Figure 4 31 includes View Event View Error Load All Default Setpoints and About M 3811A commands M 3811A Options View Event Error The View Event and View Error features that are accessible from the M 3811A Options menu are the same as described in the Monitor Recorder section However View Event and View Error ca...

Page 159: ...onvert PDB to start the Palm PDB to PC file conversion program 4 Browse or edit the appropriate Palm user backup folder with the file name M3811A BE20 OCFGDB PDB as the source PDB 5 Browse or edit the desired destination file location 6 Select Convert A confirmation or error message will be displayed when the conversion is complete 4 6 Cautions System and IPScom Compatibility Every attempt has bee...

Page 160: ...hock can occur 1 Remove power current and potential inputs from the relay 2 Remove the screws that retain the rear cover lift the rear cover off the relay 8 WARNING The protective grounding terminal must be connected to an earth line any time external connections have been made to unit 3 Remove the six screws that retain the CPU board to the I O board 4 Disconnect the CPU board from the I O board ...

Page 161: ...1 3 A B C M 3410A Instruction Book 4 40 This Page Left Intentionally Blank ...

Page 162: ...nbalance 5 16 46 Negative Sequence Overcurrent Inverse Time Current Unbalance Generator Protection 5 17 46 Negative Sequence Overcurrent Inverse Time Current Unbalance Intertie Protection 5 18 47 Negative Sequence Overvoltage Voltage Unbalance 1 or 2 5 19 51N Inverse Time Residual Overcurrent 5 20 51V Inverse Time Overcurrent with Voltage Control or Voltage Restraint 5 21 59 Phase Overvoltage 3 Ph...

Page 163: ...stem power 3 Three phaseindependentvoltagesources 0 to 150 of nominal voltage with variable phase to simulate VT inputs 4 Three phaseindependentcurrentsources 0 to 300 of the CT rating of 1 A or 5 A with variable phase to simulate CT inputs 5 Electronic timer accurate to at least 8 ms Setup Q Q Q Q Q NOTE The proper voltage range for the relay is clearly marked on the power supply label affixed to...

Page 164: ...t Input 3 IB 120 IC 120 TB2 23 TB2 19 TB2 20 TB2 16 TB2 17 5A CT Configuration IA 0 TB2 21 Current Input 1 Polarity Current Input 2 Current Input 3 IB 120 IC 120 TB2 23 TB2 18 TB2 20 TB2 15 TB2 17 1A CT Configuration Figure 5 2 Current Inputs Configuration C1 Q NOTE The phase angles shown here use leading angles as positive and lagging angles as negative Some manufacturers of test equipment have u...

Page 165: ...e Output Test section of the Input Output test screen The DMM can now be used to verify the position of the output contacts in the asserted position The readings should be the opposite of the initial reading in Table 5 2 All outputs should be returned to their initial unasserted positions Control Status Input Test The INPUT OUTPUT Test menu allows the user to determine the status of the individual...

Page 166: ...blished through COM2 either RS 232 or RS 485 2 Select Loopback COM1 RS232 from the Relay Diagnostics Relay Com Test menu 3 The system will report back either Pass or Fail COM2 RS 232 Loopback Test 1 Verify that the following conditions exist Power is available to the relay An RS 232 Loopback Plug See Figure 5 3 COM1 COM2 Loopback Plug is connected to the COM2 port IO Board jumpers JP3 and JP4 are ...

Page 167: ...ify that nominal frequency nominal voltage and CT Rating and ratios if applicable have been entered in the IPScom Setup Relay screen 8 8 8 8 8 WARNING DO NOT remove auxiliary current transformers without shorting the current inputs Death or severe electrical shock can occur 4 Configure voltage and current input sources as indicated in Figure 5 5 Current Input Configuration and Figure 5 6 Voltage I...

Page 168: ...A IB IC 5 A CT Configuration TB 23 TB 19 TB 20 TB 16 TB 17 Nominal Current Nominal Frequency 0 o Nominal Current Nominal Frequency 0 o Figure 5 5 Current Input Configuration Hot Neutral Voltage Input VA TB 9 VB VC TB 10 TB 11 TB 12 TB 13 TB 14 Nominal Voltage Nominal Frequency 0 o Figure 5 6 Voltage Input Configuration ...

Page 169: ...ttings in IPScom to preserve desired setup and then load the test settings After testing is completed the desired relay settings can be loaded into the relay from the stored file The tests are described in this section in ascending function number order Depending on which functions are to be tested at a given time an order may be determined with the aid of Table 5 1 Functions to Disable When Testi...

Page 170: ...al Voltage to V1 and V2 and establish a phase angle difference of more than PA 5 Hold the TARGET RESET button in and slowly decrease the phase angle difference until Output Z LED operates or the pickup indicator operates on the computer target screen The angle difference should be equal to PA 1 Release the TARGET RESET button and increase the angle difference the OUTPUT LED will extinguish 4 Upper...

Page 171: ... LED will extinguish Set V1 to Nominal Voltage and decrease V2 below DVL and verify that the function does not operate Dead V2 Hot V1 Test Enable Dead V2 Hot V1 and disable Dead V1 Hot V2 if enabled Set V1 to Nominal Voltage and V2 to DVL 5 V Hold the TARGET RESET button in and slowly decrease the voltage on V2 until Output Z LED operates or the pickup indicator operates on the computer target scr...

Page 172: ...for configuration Set at Nominal Voltage see Table A 3 System Setup Record Form 4 Pickup Test Hold the TARGET OUTPUT RESET pushbutton in and slowly decrease the input voltage on phase A until PHASE UV 27 LED light illuminates or the pickup indicator operates on the Function Status screen The voltage level should be equal to P 0 5 V or 0 5 Release the TARGET OUTPUT RESET pushbutton and increase the...

Page 173: ...and slowly decrease the neutral voltage until GROUND UV 27G LED light illuminates or the pickup indicator operates on the Function Status screen The voltage level should be equal to P 0 5 V or 0 5 Release the TARGET OUTPUT RESET pushbutton and increase the input to the nominal voltage Press TARGET OUTPUT RESET pushbutton to remove targets 5 Time Test With output contacts Z connected to the timer a...

Page 174: ...RESET pushbutton and slowly increase the three phase currents for negative or reverse power flow direction the phase angle of the phase currents are set at 180 degrees from the respective phase voltages Increase the currents until the DIRECTIONAL PWR 32 LED light illuminates or the pickup indicator operates on the Function Status screen The level of operation will be equal to that calculated in st...

Page 175: ... Three Phase Detect Pickup Test a Enable Three Phase Detection b Set the three phase voltages to the Nominal Voltage see Table A 3 System Setup Record Form Q NOTE For negative or reverse power flow direction the phase angle of these currents are set at 180 degrees from their respective phase voltages c Hold the TARGET RESET button in and slowly increase the three phase current until the DIRECTIONA...

Page 176: ...is to be expected for an individual setting is as follows a Define reach as RPU PPU OPU where OPU is essentially negative Rsec RPU Osec OPU VN IN VN IN for L L and L G to L L VT configuration use VN S3 b Define trip current as I Applied Voltage Rsec The voltage level may be selected based on the desired test current level c Define offset current as IO Applied Voltage Osec 5 Set the three phase vol...

Page 177: ...r apply I 10 Amps and start timing Contacts will close within D 2 cycles 9 If testing is complete enable any functions disabled for this test If other tests are to be completed check the proper functions to disable for the next test and proceed from this configuration Q NOTE The above test assumes line to ground VT configuration The test can also be conducted for line to line configuration with 30...

Page 178: ...ble A 3 System Setup Record Form 5 Pickup Test Press and hold the TARGET OUTPUT RESET pushbutton and slowly increase the three phase currents until the CUR UNBALANCE 46 LED illuminates or the pickup indicator operates on the Function Status screen The level will be equal to pickup current calculated in step 4 0 5 or 0 1 A for 5 A 0 02 A or 0 5 for 1 A units 6 Release TARGET OUTPUT RESET pushbutton...

Page 179: ...age P Suggest 4 or 5 test levels chosen and calculated in amps 6 Time Test With output contacts Z connected to stop the timer apply currents equal to the chosen test levels calculated in step 5 and start timing The operating time will be as read from Figure D 9 I2 2 t K Negative Sequence Inverse Time Curves negative sequence current in of Nominal Current and appropriate K Time Dial setting or the ...

Page 180: ...om the table below Choose 4 or 5 test levels and calculate the operating times for each Curve 5 t TD x 0 14 M0 02 1 Curve 6 t TD x 13 5 M 1 Curve 7 t TD x 80 M2 1 Curve 8 t TD x 120 M 1 IEC Class A Standard Inverse IEC Class B Very Inverse IEC Class C Extremely Inverse IEC Class D Long Time Inverse t time in seconds TD Time Dial setting M current in multiples of pickup Standard Curve Testing The o...

Page 181: ...ply the voltage phase angles as follows a Line Ground or Line Ground to Line Line VA s0 VB s120 VC s 120 b Line to Line VAB s0 VBC s120 4 Pickup Test Apply 3 phase voltage 5 below pickup P Hold the TARGET OUTPUT RESET pushbutton in and slowly increase the voltage applied until the VOLT UNBALANCE 47 LED illuminates or the pickup indicator operates on the Function Status screen The level should be e...

Page 182: ...Ic 4 Refer to Appendix D Calculate test times for levels represented on the graphs Choose 4 or 5 test levels and calculate test times for each For IEC curves the following formulas can be used Curve 5 t TD x 0 14 M0 02 1 Curve 6 t TD x 13 5 M 1 Curve 7 t TD x 80 M2 1 Curve 8 t TD x 120 M 1 IEC Class A Standard Inverse IEC Class B Very Inverse IEC Class C Extremely Inverse IEC Class D Long Time Inv...

Page 183: ...02 1 Curve 6 t TD x 13 5 M 1 Curve 7 t TD x 80 M2 1 Curve 8 t TD x 120 M 1 IEC Class A Standard Inverse IEC Class B Very Inverse IEC Class C Extremely Inverse IEC Class D Long Time Inverse t time in seconds TD Time Dial setting M current in multiples of pickup 6 Voltage Control Test Input voltages at least 5 under the Voltage Control setting V a With output contacts connected to the timer apply cu...

Page 184: ...Setup for configuration Set Voltages Nominal Voltage see Table A 3 System Setup Record Form 4 Pickup Test Press and hold the TARGET OUTPUT RESET pushbutton and slowly increase the input voltage on phase A until 59 59I PHASE OV LED illuminates or the pickup indicator operates on the Status Function screen The level should be equal to P 0 5 V or 0 5 Release the TARGET OUTPUT RESET pushbutton and dec...

Page 185: ...in and slowly increase the input neutral voltage until 59G GROUND OV LED light illuminates or the pickup indicator operates on the Function Status screen The level should be equal to P 0 5 V or 0 5 Release the TARGET OUTPUT RESET pushbutton and decrease the input voltage Press TARGET OUTPUT RESET pushbutton to remove targets 5 Time Test With output contacts Z connected to stop the timer apply P 1 ...

Page 186: ...al Voltage see Table A 3 System Setup Record Form 4 Pickup Test Hold the TARGET OUTPUT RESET pushbutton in and slowly increase the voltage applied to Phase A until the 59 59I PHASE OV LED illuminates or the pickup indicator operates on the Function Status screen The level should be equal to P 3 Release the TARGET OUTPUT RESET pushbutton and decrease the input voltage Press TARGET OUTPUT RESET push...

Page 187: ... above See Section 5 1 Equipment Test Setup for configurations 4 Adjust the three phase voltage source to Nominal Voltage see Table A 3 System Setup Record Form and the three phase current source to Nominal Current see Table A 3 5 Time Test With output contacts connected to the timer remove the A phase voltage input and start timing and the 60FL FUSE LOSS LED will illuminate The operating time wil...

Page 188: ...st the three phase voltage source to Nominal Voltage see Table A 3 System Setup Record Form 5 Setup Remove the A phase voltage input to cause Function 27 to trip Output R Output R will trip after Function 27 times out 6 Time Test With output contacts connected to the timer reapply the A phase voltage input and start timing The operation time will be D cycles within 2 cycles 7 Press TARGET OUTPUT R...

Page 189: ...frequency For overfrequency testing hold the TARGET OUTPUT RESET pushbutton in and slowly increase the frequency on the input voltage s until the 81 O U FREQUENCY LED illuminates or the pickup indicator operates on the Function Status screen The level will be equal to P Hz 0 03 Hz only if P is within 3 Hz of Fnom otherwise 0 15 Hz Return to nominal input frequency Press TARGET OUTPUT RESET pushbut...

Page 190: ...sabled column or check the output contacts to be operated by the function and check the inputs designated to block the function operation Table A 2 Communication Data Unit Setup Record Form reproduces the Communication setup menus This form records definition of the parameters necessary for communication with the relay as well as access codes Table A 3 System Setup Record Form allows recording of ...

Page 191: ...1N 51V 59 1 2 59G 59I 60FL 79 81 1 2 3 4 Check each box applicable See page A 1 for information on using this table D Column Function Disabled OUTPUTS Columns Designated function output s FL Column Function blocked by fuse loss INPUTS Columns Designated function blocking input s Table A 1 Relay Configuration Table ...

Page 192: ... o 1200 o 2400 o 4800 o 9600 o 19200 Parity o None o Odd o Even Stop Bits o 1 o 2 PC COM3 Setup Baud Rate o 300 o 600 o 1200 o 2400 o 4800 o 9600 o 19200 Parity o None o Odd o Even Stop Bits o 1 o 2 Communication Address Relay Com Access Code _______________ Default 9999 until changed by operator Relay Communication Address 1 2 3 ____________ Table A 2 Communication Data Unit Setup Record Form ...

Page 193: ...guration o L G o L L o L G to L L 59 27 Magnitude Select o RMS o DFT Phase Rotation o ABC o ACB Output Relay 1 o De energize to Actuate Failsafe o Energize to Actuate Output Relay 2 o De energize to Actuate Failsafe o Energize to Actuate VT Phase Ratio 1 0 to 6550 0 _____________ 1 CT Phase Ratio 1 to 65500 _____________ 1 VTSync VG Ratio 1 0 to 6550 0 _____________ 1 Relay Out 1 Seal In Time 2 to...

Page 194: ...ble Delta Frequency 0 001 to 0 500 Hz _______________ p Enable p Disable Dead V1 Hot V2 p Hot V1 Dead V2 p Dead V1 Dead V2 p Supervised by Function 79 o Dead Input Initiate p 2 p 1 Phase Selection p AB p BC Outputs p 2 p 1 Blocking Inputs p FL p 2 p 1 27 Undervoltage 1 Pickup 4 0 to 100 0 _______________ 1 Delay 1 to 8160 Cycles _______________ 1 Outputs p 2 p 1 1 Blocking Inputs p FL p 2 p 1 2 Pi...

Page 195: ...orward Power 1 Pickup 3 00 to 3 00 PU _______________ 1 Delay 1 to 8160 Cycles _______________ Underpower o Overpower o Three Phase Detection o Enable o Disable 1 Outputs o 2 o 1 1 Blocking Inputs o FL o 2 o 1 2 Pickup 3 00 to 3 00 PU _______________ 2 Delay 1 to 8160 Cycles _______________ Underpower o Overpower o Three Phase Detection o Enable o Disable 2 Outputs o 2 o 1 2 Blocking Inputs o FL o...

Page 196: ... 1 Voltage Control o Enable o Disable 1 Outputs o 2 o 1 1 Blocking Inputs o FL o 2 o 1 2 Circle Diameter 0 01 to 3 00 PU _______________ 2 Offset 2 00 to 2 00 PU _______________ 2 Delay 1 to 8160 Cycles _______________ 2 Voltage Control o Enable o Disable 2 Outputs o 1 o 2 2 Blocking Inputs o FL o 2 o 1 Voltage Control 4 to 100 _______________ of Nominal Voltage Table A 4 Relay Setpoints and Setti...

Page 197: ...0 to 65500 Cycles _______________ Curves o Definite Time o Inverse Time o Very Inverse o Extremely Inverse o IECI o IECVI o IECEI o IECLTI o I square t K Outputs o 2 o 1 Blocking Inputs o FL o 2 o 1 47 Negative Sequence Overvoltage 1 Pickup 4 0 to 100 0 _______________ 1 Delay 1 to 8160 Cycles _______________ 1 Outputs o 2 o 1 1 Blocking Inputs o FL o 2 o 1 2 Pickup 4 0 to 100 0 _______________ 2 ...

Page 198: ...o 1 Blocking Inputs o FL o 2 o 1 51V Inverse Time Overcurrent with Voltage Control or Restraint Pickup 0 50 to 12 00 A _________ 0 10 to 2 40 A Time Dial Standard Curves 0 5 to 11 0 _________ Time Dial IEC Curves 0 05 to 1 10 _________ Curves o Definite Time o Inverse Time o Very Inverse o Extremely Inverse o IECI o IECVI o IECEI o IECLTI Voltage Control 4 0 to 150 0 _________ o Disable o Voltage ...

Page 199: ...o 2 o 1 2 Pickup 100 0 to 150 0 _________ 2 Delay 1 to 8160 Cycles _________ 2 Outputs o 2 o 1 2 Blocking Inputs o FL o 2 o 1 Of Nominal Voltage 59G Ground Overvoltage Pickup 4 0 to 150 0 _________ Delay 1 to 8160 Cycles _________ Outputs o 2 o 1 Blocking Inputs o FL o 2 o 1 Of Nominal Voltage Table A 4 Relay Setpoints and Settings Record Form page 6 of 8 ...

Page 200: ...o FL o 2 o 1 Of Nominal Voltage 60 FL Fuse Loss Detection Delay 1 to 8160 Cycles _________ Input Initiate o FL o 2 o 1 Outputs o 2 o 1 Blocking Inputs o FL o 2 o 1 79 Reconnect Enable Time Delay Delay 2 to 65 500 Cycles _________ Reconnect Initiate o 2 o 1 Outputs o 2 o 1 Blocking Inputs o FL o 2 o 1 Table A 4 Relay Setpoints and Settings Record Form page 7 of 8 ...

Page 201: ...500 Cycles _________ 2 Outputs o 2 o 1 2 Blocking Inputs o FL o 2 o 1 3 Pickup 50 00 to 67 00 _________ 40 00 to 57 00 3 Delay 2 to 65 500 Cycles _________ 3 Outputs o 2 o 1 3 Blocking Inputs o FL o 2 o 1 4 Pickup 50 00 to 67 00 _________ 40 00 to 57 00 4 Delay 2 to 65 500 Cycles _________ 4 Outputs o 2 o 1 4 Blocking Inputs o FL o 2 o 1 This range applies to 50 Hz nominal frequency models Table A...

Page 202: ...For detailed information on IPScom communications refer to Chapter 4 Operation Communication Ports The relay includes both front and rear panel serial COM ports The front panel port is a 9 pin RS 232 DB9S connector configured as DTE Data Terminal Equipment per the EIA 232 standard The rear port can be configured as an RS 232 or RS 485 port Signals are defined in Table B 1 Communication Port Signal...

Page 203: ... 7 n i P B C S T C d n e S o t r a e l C 8 n i P D C R T D y d a e R l a n i m r e T a t a D 4 n i P 4 n i P F C D C D t c e t e D r e i r r a C a t a D 1 n i P B A D N G d n u o r G l a n g i S 5 n i P 5 n i P Table B 1 Communication Port Signals 1 2 3 4 5 6 7 8 9 1 2 3 4 5 6 7 8 9 PC DB9S DTE M 3410A COM1 COM2 DB9P DTE RX TX SGND RTS CTS RX TX SGND RTS CTS DCD DTR DSR RI Figure B 1 Null Modem Ca...

Page 204: ...NTERTIE GENERATOR PROTECTION VOLT UNBALANCE 47 OVERCURRENT 51N 51V OUTPUT 1 TARGET OUTPUT RESET DIAGNOSTIC RELAY OK OUTPUT 2 M 3410A PHASE U V 27 DIRECTIONAL PWR 32 LOSS OF FIELD 40 CUR UNBALANCE 46 NEUTRAL U V 27G 59 59I PHASE O V 60FL FUSE LOSS 59G NEUTRAL O V 81 O U FREQUENCY OSC TRIGGER ELECT RIC BECKWITH Made in U S A CO INC R COM 1 INTERTIE GENERATOR PROTECTION VOLT UNBALANCE 47 OVERCURRENT ...

Page 205: ...ction 2 7 Circuit Board Switches and Jumpers 3 Slave N may be up to 31 relays 4 The Echo Cancel feature should be selected to ON in the Communication Dialog Screen Figure 4 3 Figure B 3 RS 485 2 Wire Network PC Master T T R R RX RX TX TX RX RX TX TX RX RX TX TX 200 RS 485 4 Wire Network Slave 1 Address 1 Slave 2 Address 2 Slave N Address 3 RS 232 to RS 485 4 wire converter or RS 485 PC Card Twiste...

Page 206: ... d a o l m a r g o r p P S D 3 2 e d o c e d o m n u r g n i n n u r t o n P S D 4 2 e d o c t o o b y r a d n o c e s g n i n n u r t o n P S D 5 2 r o r r e y f i r e v e t i r w M O R P E E 6 2 M O R P E E d e z i l a i t i n U 7 2 g n i n r a w h c t a m s i m m u s k c e h c n o i t a r b i l a C 8 2 g n i n r a w h c t a m s i m m u s k c e h c t n i o p t e S 9 2 g n i n r a w y r e t t a b...

Page 207: ...ble to calibrate input gain 43 Unable to calibrate input phase 44 Stack overflow 45 Setpoint write overflow 46 Flash ROM Checksum error 47 DSP Internal RAM error 48 DSP external program RAM 2 error 49 COM1 UART Write Verify error 51 COM2 UART Write Verify error 52 DSP to Microprocessor com error 53 Analog Front End Voltage Ref fail 54 COM2 Loopback Test error 55 COM3 Loopback Test error 56 Diagnos...

Page 208: ...unctions which utilize the Inverse Time Overcurrent curves Table D 1A and D 1B on pages D 2 and D 3 contains a list of the data that characterizes Definite Time Inverse Time Very Inverse Time and Extremely Inverse Time Overcurrent Curves Q NOTE The specified timing accuracy is applicable for currents above three times the pickup value ...

Page 209: ... 2 1 2 1 6 8 6 6 5 1 0 2 2 4 5 5 6 3 0 7 5 2 2 7 1 2 1 8 2 1 1 0 2 8 7 4 1 0 3 2 3 9 2 5 3 0 4 9 0 4 5 1 6 2 6 1 0 1 8 6 2 2 3 1 0 4 2 5 1 1 4 3 0 4 0 1 9 3 1 7 0 2 2 9 0 0 5 2 9 1 1 0 5 2 8 1 0 3 3 0 1 6 5 6 2 1 0 9 1 4 8 0 1 2 2 8 0 1 0 6 2 9 9 9 1 3 0 5 4 9 5 1 1 1 0 3 7 7 0 0 8 7 8 9 0 0 7 2 7 5 0 1 3 0 1 7 8 6 0 1 4 3 3 1 7 0 6 2 6 0 9 0 0 8 2 9 8 1 0 3 0 9 4 0 9 9 0 7 2 1 6 6 0 7 2 5 3 8 0 0...

Page 210: ...0 7 9 1 5 1 0 4 1 8 9 0 0 0 5 9 3 1 8 0 2 0 5 3 9 3 2 0 0 7 7 4 1 0 0 7 0 9 0 0 0 0 0 1 0 4 7 0 2 0 2 2 4 3 2 0 3 7 4 4 1 0 4 7 4 8 0 0 0 5 0 1 7 6 6 0 2 0 3 2 9 2 2 0 0 8 1 4 1 0 3 4 9 7 0 0 0 0 1 1 4 9 5 0 2 0 2 4 4 2 2 0 4 9 8 3 1 0 9 6 4 7 0 0 0 5 1 1 1 2 5 0 2 0 9 7 9 1 2 0 5 1 6 3 1 0 6 4 0 7 0 0 0 0 2 1 9 4 4 0 2 0 6 3 5 1 2 0 5 4 3 3 1 0 7 6 6 6 0 0 0 5 2 1 8 7 3 0 2 0 5 1 1 1 2 0 4 8 0 3 ...

Page 211: ...rve T 10 i m e n Time Dial S e K i 11 c 0 n d 5 1 r 9 7 r OJ r I 4 3 I 2 r r 1 0 1 i r r 0 01 1 10 100 Current in Multiples of Pickup T 10 i m e n Time pial S e r I 11 c 0 n d 5 1 0 r 9 r 7 I r i f 4 3 r i 2 r r Io 0 1 I i r 0 01 1 10 100 Current in Multiples of Pickup ...

Page 212: ...0 1 0 01 I _ L I l 1 I f l r r r f l i r f r r f t 1 Current in Multiples of Pickup Time Dial f r tr I t 1 tr I 9 r 7 r I h t r r 1 n 10 100 T i m e i n S e 10 c 1 o n d 5 0 1 0 01 _ l I 1 1 l I 1 r 1 l i 1 Current in Multiples of Pickup r i Time Dial 1 r i i 9 I r i 7 t r r o A i f o 3 f t 2 r I 1 r r 10 100 ...

Page 213: ... i m e n S 1 1 t Time Dial e c 0 n d 1 f I f r l f 11 r I a s I r r I I f o 1 2 0 1 r 1 i o 5 0 01 1 10 100 Current in Multiples of Pickup 10 T i m e n S 1 1 t Time Dial e c 0 n d 1 f I f r l f 11 r I a s I r r I I f o 1 2 0 1 r 1 i o 5 0 01 1 10 100 Current in Multiples of Pickup ...

Page 214: ... 1 1 I T i m e 1 f i n S e c 1 0 TimE Dial l n d 5 1 I 1 1 f 1 1 11 r 9 r I J 1 l 4 3 r 0 1 2 I 1 5 0 01 1 10 100 Current in Multiples of Pickup 1 10 l 1 1 I T i m e 1 f i n S e c 1 0 TimE Dial l n d 5 1 I 1 1 f 1 1 11 r 9 r I J 1 l 4 3 r 0 1 2 I 1 5 0 01 1 10 100 Current in Multiples of Pickup ...

Page 215: ... 3410A Instruction Book 0 01 0 1 1 10 100 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Multiple of Pickup Time in Seconds 1 1 1 0 9 0 8 0 6 0 4 0 2 05 Figure D 5 IEC Curve 1 Inverse t TD x 0 14 M0 02 1 ...

Page 216: ...me Curves Appendix D D 9 Figure D 6 IEC Curve 2 Very Inverse 0 01 0 1 1 10 100 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Multiple of Pickup Time in Seconds 1 1 1 0 9 0 8 0 6 0 4 0 2 05 K t TD x 13 5 M 1 ...

Page 217: ...10A Instruction Book Figure D 7 IEC Curve 3 Extremely Inverse 0 01 0 1 1 10 100 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Multiple of Pickup Time in Seconds 1 1 1 0 9 0 8 0 6 0 4 0 2 05 K t TD x 80 M2 1 ...

Page 218: ... Curves Appendix D D 11 Figure D 8 IEC Curve 4 Long Time Inverse 0 1 1 10 100 1000 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 Multiple of Pickup Time in Seconds 1 1 1 0 9 0 8 0 6 0 4 0 2 K 05 t TD x 120 M 1 ...

Page 219: ... 80 100 150 200 300 400 500 600 800 1000 1500 2000 3000 4000 K 95 To 65 500 cycles 50 25 10 5 2 1 Definite Maximum Time Setting Range I2 2t K Definite Minimum Time Q Q Q Q Q NOTE When the phase current exceeds 3X I nominal the operating times will be greater than those shown 0 24 seconds for 50 Hz units Figure D 9 46 Negative Sequence Overcurrent Inverse Time Curves for Generator Protection ...

Page 220: ...E 1 Declaration of Conformity Appendix E EAppendix E Declaration of Conformity This Appendix lists those European standards which the M 3410A Intertie Generator Protection Relay meets or exceeds ...

Page 221: ...ective Manufacturer Contact Director ofQuality Assurance 61901181 Ave North Largo FL 33773 3724 Tel 727 544 2326 DECLARATION OF CONFORMITY according to IS0llEC Guide 22 EN 45014 Manufacturer S Name Manufacturer s Address Beckwith Electric 6190 11sth Avenue North Largo FL 33773 The manufacturer hereby declares under our sale responsibility that the M 341OA product conforms to the following standard...

Page 222: ...ent B1 Figure 2 25 The battery provides power to the M 3410A clock and also provides power to the unit s nonvolatile memory when power is not applied to the unit Layup of the M 3410A requires removing the battery which stops the system clock The steps necessary to remove the battery are as follows CAUTION Personnel performing this procedure should be trained in Electrostatic Discharge prevention t...

Page 223: ...M 3410A Instruction Book F 2 This Page Left Intentionally Blank ...

Page 224: ...d under this contract In no event shall the Seller be liable for special incidental exemplary or consequential damages including but not limited to loss of profits or revenue loss of use of the equipment or any associated equipment cost of capital cost of purchased power cost of substitute equipment facilities or services downtime costs or claims or damages of customers or employees of the Buyer f...

Page 225: ... ELECTRIC CO INC 6190 118th Avenue North Largo Florida 33773 3724 U S A PHONE 727 544 2326 FAX 727 546 0121 E MAIL marketing beckwithelectric com WEB PAGE www beckwithelectric com 2001 Beckwith Electric Co Printed in USA 800 3410A IB 02MC1 10 07 ...

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