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Eaton Digitrip 3000 series, Инструкции по установке, эксплуатации и обслуживанию

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DT3000

                    Instruction Leaflet

I.B. 17555D

Effective:  Date 07/02

                                     Page 61

For more information visit: 

www.cutler-hammer.eaton.com

Supersedes I.B. 17555C dated November 1999

7-2 DIGITRIP 3000 CURVE EQUATIONS

Thermal Curve Equation

SLOPE

M

IT

1

I

2

T

2

I

4

T

4

T = Trip Time

D = Time Multiplier (0.2 to 40) IT 1

I = Input Current I2T 2

M = Slope (0 = FLAT, 1 = IT, 2 = I2T, 4 = 14T) I4T 4

K = 3 for phase, 1 for ground FLAT 0

FLAT

0

ANSI/IEC Curve Equation

Where:

I = Input Current

I

pu

 = Pickup Current Setting

D = Time Multiplier Setting

P

A

B

ANSI MOD

Moderately Inverse

0.02

0.0515

0.114

ANSI VERY

Very Inverse

2

19.61

0.491

ANSI XTRM

Extremely Inverse

2

28.0

0.1217

D = 0.1 - 5.0

step of 0.1

IEC-A

Normal Inverse

0.02

0.14

0

IEC-B

Very Inverse

1

13.5

0

IEC-C

Extremely Inverse

2

80

0

IEC-D

Definite Time

0

4

D = 0.05 to 1.0

step of 0.05

I

M

I

n

T =    

D * K

M

I

P

I

pu

T  =  D *   

-1

+B

A

Содержание Digitrip 3000 series

Страница 1: ...Effective July 2002 Supersedes I B 17555C dated November 1999 I B 17555D INSTRUCTIONS FOR INSTALLATION OPERATION AND MAINTENANCE OF THE CUTLER HAMMER DIGITRIP 3000 SERIES OF PROTECTIVE RELAYS...

Страница 2: ...Effective July 2002 Supersedes I B 17555C dated November 1999...

Страница 3: ...Effective July 2002 Supersedes I B 17555C dated November 1999...

Страница 4: ...XTERNAL HARDWARE 18 SECTION 3 OPERATION 20 3 1 INTRODUCTION 20 3 2 POWER UP AND SELF TESTING 20 3 3 PANEL OPERATIONS 20 3 3 1 CHARACTERISTIC CURVE 20 3 3 2 PROGRAM MODE 26 3 3 3 PROGRAMMING OVERVIEW 2...

Страница 5: ...SIDERATIONS 67 A6 0 DRAWOUT OPERATION 67 A6 1 INSERTING THE RELAY 67 A6 2 REMOVING THE RELAY 68 APPENDIX B 69 B1 0 INTRODUCTION 69 B2 0 GENERAL DESCRIPTION 69 B3 0 FUNCTIONAL DESCRIPTION 71 B4 0 INSTA...

Страница 6: ...er Hammer representative TABLE 1 1 DT3000 PROTECTIVE RELAY FAMILY STYLES DT3000 NEW STYLE DT3000 OLD STYLE CATALOG DESCRIPTION NOTES 4D13120G21 4D13120G11 DT3000 Protective Relay Standard FW HR PS PM...

Страница 7: ...NT ANY WIRING INSTRUCTIONS PRESENTED IN THIS DOCUMENT MUST BE FOLLOWED PRECISELY FAILURE TO DO SO COULD CAUSE PERMANENT EQUIPMENT DAMAGE BODILY INJURY OR DEATH 1 2 GENERAL INFORMATION The Digitrip 300...

Страница 8: ...1 2 minutes Programming and test mode security is provided by a sealed hinged access cover on the front of the relay Direct reading displays indicate the value currently being considered while multi...

Страница 9: ...pictorial representation of characteristic curve shapes is provided on the face of the relay for reference purposes All Digitrip 3000 Protective Relays have zone selective interlocking capabilities f...

Страница 10: ...SECTION 2 FUNCTIONAL DESCRIPTION 2 1 PROTECTION TESTING AND COMMUNICATION CAPABILITIES 2 1 1 RMS SENSING Digitrip 3000 Protective Relays provide true RMS sensing for proper correlation with the therma...

Страница 11: ...ayed in the Settings window Phase Inverse Time Overcurrent Pickup The available pickup settings for the standard DT3000 shown below range from 0 20 to 2 2 times In Phase Element Inverse Time Overcurre...

Страница 12: ...ed the instantaneous protective function is disabled and a choice of whether to turn the discriminator option on DON or off DOFF is offered The discriminator is a true making current release When the...

Страница 13: ...700 0 725 0 750 0 775 0 800 0 825 0 850 0 875 0 900 0 925 0 950 0 975 1 00 10 See Notes 1 2 5 0 05 seconds 10 See Notes 1 2 4 10 See Notes 1 2 3 4 IT SC 5401 92B I2T SC 5400 92B I4T SC 5399 92B FLAT S...

Страница 14: ...Sec 5 Sec 10 Sec 30 Sec 1 min 2 min 5 min 5 min Chicago version FREQUENCY 50 Hz 60 Hz PHASE CT RATIO 5 10 25 50 75 100 150 200 250 300 400 500 600 630 800 1000 1200 1250 1500 1600 2000 2400 2500 3000...

Страница 15: ...or entered incorrectly the Operational LED will blink Red and the relay will display PRGM in the Settings Display window This means the program settings should be re entered and saved 2 1 5 INTEGRAL T...

Страница 16: ...rsedes I B 17555C dated November 1999 over a shielded twisted pair of conductors The receiving terminal is a remote mounted master computer IBM compatible Refer to Figure 2 1 for a typical communicati...

Страница 17: ...CONI 3 CARD MUST BE INSERTED INTO THE COMPUTER ISA BUS CUSTOMER TO SUPPLY A COMPUTER AND MODULAR TELEPHONE CONNECTOR TYPE RJ11 AND WIRE PER VIEW A GROUND SHIELDING AT ONE PLACE ONLY COMPUTER END RECO...

Страница 18: ...ximately 2 1 2 minutes Note Each Digitrip 3000 is shipped from the factory with nominal protection settings The user should program the relay before putting it into service as these nominal values may...

Страница 19: ...eing viewed in the unit s normal operating mode The LED will blink red whenever the load current exceeds the inverse time overcurrent pickup set point If the relay trips on inverse time overcurrent th...

Страница 20: ...hown below Trip Contacts Dip Switch OFF Position Dip Switch ON Position TB 12 13 Phase Ground Trip Inst Ground Trip Inst OC TB 14 15 Phase Ground Trip OC Communications Phase Trip Inst OC Communicatio...

Страница 21: ...wer connections Terminal 4 is the connection for equipment ground Terminal 9 and 10 provide for connection to a required dry 52b contact and to a 52 TOC contact from the circuit breaker When the relay...

Страница 22: ...rip due to an inverse time overcurrent or short time function The contact also operates when the communication interface initiates an action to open the circuit breaker With DIP Switch S3 in the ON po...

Страница 23: ...ansient Immunity to 10V M IEC 255 22 4 1989 Electrical Fast Transient Immunity to 10V M EN61000 4 5 1995 Surge Immunity 2 1KV C DM EN61000 4 6 1996 RF conducted Immunity to 10Vo EN61000 4 11 1994 Volt...

Страница 24: ...es the operation and functional use of the Digitrip 3000 Protective Relay It does not address in detail rear power connections and DIP switch settings These topics are covered in SECTION 5 entitled IN...

Страница 25: ...through 3 9 Notice that there is no horizontal movement of the ANSI and IEC curve shapes Only the point at which the relay starts to time out moves along the curve shape b Nominal Continuous Current...

Страница 26: ...ally true when a number of protective functions such as inverse time overcurrent and short delay protection are combined into one cooperative curve Figure 3 8 shows a typical time current curve that h...

Страница 27: ...00 Instruction Leaflet I B 17555D Effective Date 07 02 Page 23 For more information visit www cutler hammer eaton com Supersedes I B 17555C dated November 1999 Fig 3 2 Digitrip 3000 Typical Wiring Dia...

Страница 28: ...r somewhat from a true rms ampere value if a significant percentage harmonic current is present Ground Fault Protection The ground fault protection function can be a composite of the ground 1 Inverse...

Страница 29: ...rotective needs 1 When NONE is selected as a setting the associated tripping function is disabled 2 When NONE is selected for the Phase Instantaneous Setting a Phase Discriminator option is offered 3...

Страница 30: ...de 5 The Program Mode is also exited if the Reset pushbutton is pressed and released or if there is no programming activity for approximately 2 1 2 minutes To enter the Program Mode open the protectiv...

Страница 31: ...s to the High Load Setting The High Load LED will blink green and the last programmed value for the High Load time setting will appear in the alphanumeric display Once this selection is made and the S...

Страница 32: ...d Lower pushbuttons will move the display between the set points for each of the four groups Within a group the set points move horizontally Table 2 2 Pressing and releasing the Test pushbutton will i...

Страница 33: ...aults should be cleared as quickly as possible Zone selective interlocking provides this capability better than a system with only selective coordination When the Ground Zone Interlocking feature is u...

Страница 34: ...eparate from power conductors Jumper on devices in last zone used to provide time delay per inverse time overcurrent or short delay time setting If the jumper is not used the Digitrip 3000 will initia...

Страница 35: ...eparate from power conductors Jumper on devices in last zone used to provide time delay per inverse time overcurrent or short delay time setting If the jumper is not used the Digitrip 3000 will initia...

Страница 36: ...nting in the desired location Digitrip 3000 Protective Relay dimensions are shown in Figure 5 2 It is necessary to hold the tolerances shown when making the cutouts and placing the holes for the mount...

Страница 37: ...ation refer to Paragraph 2 2 2 5 4 WIRING The wiring of the Digitrip 3000 Protective Relay must follow a suitable wiring plan drawing The term wiring plan as used here refers to the drawings made for...

Страница 38: ...identified to be internal the unit should be returned to the factory for repair or replacement as described in the Replacement section below 6 1 1 STORAGE The Digitrip 3000 Protective Relay should be...

Страница 39: ...T THE PROTECTIVE RELAY FROM THE FRONT SIDE WHEN THE SCREWS ARE LOOSENED OR REMOVED WITHOUT SUCH SUPPORT THE PROTECTIVE RELAY COULD FALL OR THE PANEL COULD BE DAMAGED Step 6 Mount the replacement unit...

Страница 40: ...are Invalid Reprogram Set points Paragraph 3 3 2 PGRM Appears in Settings Display Window Check sum did not Match Replace Protective Relay if PGRM Reappears After Saving Settings Paragraph 6 3 There wa...

Страница 41: ...15 Check that Trip Contact on Protective Relay makes Figure 3 1 Figure 3 1 Protective Relay Indicates a Trip but Circuit Breaker Doesn t Open Unit in Test Mode with No Trip Test Selected Select Trip T...

Страница 42: ...0 1 1 10 100 Multiple of In I In Trip Time seconds 5 Seconds at 3 per Unit 40 Seconds at 3 per Unit 0 2 Seconds at 3 per Unit Minimum Pickup 0 2 Maximum Pickup 2 2 Adjustable Inverse Time Overcurrent...

Страница 43: ...1 10 100 Multiple of In I In Trip Time seconds 5 Seconds at 3 per Unit 40 Seconds at 3 per Unit 0 2 Seconds at 3 per Unit Minimum Pickup 0 2 Maximum Pickup 1 0 Adjustable Inverse Time Overcurrent Pick...

Страница 44: ...00 00 1000 00 10000 00 0 1 1 10 100 Multiple of In I In Trip Time seconds 5 Seconds at 3 per Unit 40 Seconds at 3 per Unit 0 2 Seconds at 3 per Unit Minimum Pickup 0 2 Maximum Pickup 2 2 Adjustable In...

Страница 45: ...0 1000 00 10000 00 0 1 1 10 100 Multiple of In I In Trip Time seconds 5 Seconds at 3 per Unit 40 Seconds at 3 per Unit 0 2 Seconds at 3 per Unit Minimum Pickup 0 2 Maximum Pickup 1 0 Adjustable Invers...

Страница 46: ...100 00 1000 00 0 1 1 10 100 Multiple of In I In Trip Time seconds 0 2 Seconds at 3 per Unit 40 Seconds at 3 per Unit 5 Seconds at 3 per Unit Minimum Pickup 0 2 Maximum Pickup 2 2 Adjustable Inverse T...

Страница 47: ...1 10 100 Multiple of In I In Trip Time seconds 0 2 Seconds at 3 per Unit 40 Seconds at 3 per Unit 5 Seconds at 3 per Unit Minimum Pickup 0 2 Maximum Pickup 2 2 Adjustable Invers e T im e O vercurrent...

Страница 48: ...5393 92B DT 3100 DT 3101 Users See Figure 7 4b 0 01 0 10 1 00 10 00 100 00 1000 00 0 1 1 10 100 Multiple of In Value Trip Time seconds 0 2 Seconds 2 Seconds Minimum Pickup 0 2 Maximum Pickup 2 2 Adju...

Страница 49: ...s SC 5393 92B For DT 3100 DT 3101 Users Only 0 01 0 10 1 00 10 00 100 00 1000 00 0 1 1 10 100 Multiple of In Value Trip Time seconds 0 2 Seconds 2 Seconds Minimum Pickup 0 2 Maximum Pickup 1 0 Adjusta...

Страница 50: ...4 92B 0 01 0 10 1 00 10 00 100 00 1000 00 10000 00 0 1 1 10 100 Multiple of In Value Trip Time seconds Highest Pickup With Longest Time Typical Inverse Time Overcurrent Function Lowest Pickup With Sho...

Страница 51: ...0 01 0 10 1 00 10 00 100 00 1000 00 10000 00 0 1 1 10 100 Multiple of In Value Trip Time seconds Typical Short Delay Time Function Typical Inverse Time Overcurrent Function Inverse Time Overcurrent P...

Страница 52: ...5396 92B 0 01 0 10 1 00 10 00 100 00 1000 00 10000 00 0 1 1 10 100 Multiple of In Value Trip Time seconds Phase Lowest Setting Phase Highest Setting Ground Lowest Setting Ground Highest Setting Adjus...

Страница 53: ...p Time seconds 0 2 Seconds at 1 per Unit Minimum Pickup 0 1 Maximum Pickup 2 0 Adjustable Inverse Time Overcurrent Ground Pickup x In 0 1 2 0 None Adjustable Inverse Time Overcurrent Time Multiplier G...

Страница 54: ...0 1000 00 10000 00 0 1 1 10 100 Multiple of In I In Trip Time seconds 5 Seconds at 1 per Unit 0 2 Seconds at 1 per Unit Minimum Pickup 0 1 Maximum Pickup 2 0 40 Seconds at 1 per Unit AdjustableInverse...

Страница 55: ...10 100 Multiple of In I In Trip Time seconds 5 Seconds at 1 per Unit 0 2 Seconds at 1 per Unit Minimum Pickup 0 1 Maximum Pickup 2 0 Adjustable Inverse Time Overcurrent Pickup x In 0 1 2 0 None Adjust...

Страница 56: ...Curves SC 5402 92B 0 01 0 10 1 00 10 00 100 00 1000 00 0 1 1 10 100 Multiple of In Value Trip Time seconds Lowest Pickup and Shortest Time Highest Pickup and Longest Time Adjustable Inverse Time Over...

Страница 57: ...ay Ground Curves SC 5403 92B 0 01 0 10 1 00 10 00 100 00 1000 00 0 1 1 10 100 Multiple of In Value Trip Time seconds Lowest Pickup and Shortest Time Highest Pickup and Longest Time Adjustable Short De...

Страница 58: ...999 Figure 7 13 ANSI Moderately Inverse Curves SC 6685 96 0 01 0 10 1 00 10 00 100 00 1000 00 1 10 100 Multiple of Pickup Current I Ipu Trip Time seconds 3 5 2 1 0 5 0 3 0 2 0 1 Time Multiplier Adjust...

Страница 59: ...1999 Figure 7 14 ANSI Very Inverse Curves SC 6686 96 0 01 0 10 1 00 10 00 100 00 1000 00 1 10 100 Multiple of Pickup Current I Ipu Trip Time seconds 3 5 2 1 0 5 0 3 0 2 0 1 Adjustable Time Multiplier...

Страница 60: ...Extremely Inverse Curves SC 6687 96 0 01 0 10 1 00 10 00 100 00 1000 00 1 10 100 Multiple of Pickup Current I Ipu Trip Time seconds 3 5 2 1 0 5 0 3 0 2 0 1 Time Multiplier Adjustable Time Multiplier...

Страница 61: ...gure 7 16 IEC A Moderately Inverse Curves SC 6688 96 0 01 0 10 1 00 10 00 100 00 1000 00 1 10 100 Multiple of Pickup Current I Ipu Trip Time seconds 0 7 0 05 0 15 1 0 5 0 3 0 2 0 1 Adjustable Time Mul...

Страница 62: ...ery Inverse Curves SC 6689 96 0 01 0 10 1 00 10 00 100 00 1000 00 1 10 100 Multiple of Pickup Current I Ipu Trip Time seconds 0 7 0 05 0 15 1 0 5 0 3 0 2 0 1 Adjustable Time Multiplier 0 05 1 00 Toler...

Страница 63: ...emely Inverse Curves SC 6690 96 0 01 0 10 1 00 10 00 100 00 1000 00 1 10 100 Multiple of Pickup Current I Ipu Trip Time seconds 0 7 0 05 0 15 1 0 5 0 3 0 2 0 1 Adjustable Time Multiplier 0 05 1 00 Tol...

Страница 64: ...n com Supersedes I B 17555C dated November 1999 Figure 7 19 IEC D Family Flat SC 6691 96 0 01 0 10 1 00 10 00 100 00 1000 00 1 10 100 Multiple of Pickup Current I Ipu Trip Time seconds 0 7 0 05 0 15 1...

Страница 65: ...T 2 M Slope 0 FLAT 1 IT 2 I2T 4 14T I4T 4 K 3 for phase 1 for ground FLAT 0 FLAT 0 ANSI IEC Curve Equation Where I Input Current Ipu Pickup Current Setting D Time Multiplier Setting P A B ANSI MOD Mod...

Страница 66: ...ions that maintain circuit continuity when the device is removed These self shorting contacts will prevent damaging voltages from existing across the current transformer windings The terminal blocks f...

Страница 67: ...ections to the terminal blocks must be sizes 14 AWG to 10 AWG The appropriate sized spade and ring lugs can also be used to accommodate the wires All contacts are shown in the de energized position NO...

Страница 68: ...Relay Config Remote open close Relay Configuration Disable Unlatched Comm Close OC INST Manual Disable Auto 52a Enable 52b Phase Gnd Hi Load Alm Enable Latched 1 FUNCTION IMPACC Buffers OFF ON DT3000...

Страница 69: ...rmation visit www cutler hammer eaton com Supersedes I B 17555C dated November 1999 FIG A 4 DIGITRIP 3001 TYPICAL AC OR DC SCHEMATIC FIG A 5 DIGITRIP 3001 TYPICAL AC EXTERNAL CURRENT CONNECTION WITH Z...

Страница 70: ...ruction Leaflet DT3000 Page 66 Effective Date 07 02 I B 17555D For more information visit www cutler hammer eaton com Supersedes I B 17555C dated November 1999 Fig A 7 Digitrip 3001 Typical Wiring Dia...

Страница 71: ...provide a single upstream restraint signal 4 Only one zone common used for both phase and ground 5 DO NOT CONNECT ZONE COMMON TO EARTH GROUND Fig A 8 Typical Phase Zone Selective Interlocking Connect...

Страница 72: ...RELAY REMOVAL OF THE DIGITRIP 3001 INNER CHASSIS FROM THE DRAWOUT OUTER CASE EXPOSES LIVE PARTS WHERE THE HAZARD OF A FATAL ELECTRIC SHOCK IS PRESENT ALWAYS DISCONNECT ANY CONTROL OR SOURCE POWER BEFO...

Страница 73: ...el or 240 Vac 50 60Hz DT3020 model auxiliary power which is normally connected and available Operates solely from the main current transformers Ct during a fault if the normally connected auxiliary ac...

Страница 74: ...nity 2 1KV C DM EN61000 4 6 1996 RF conducted Immunity to 10Vo EN61000 4 11 1994 Voltage Dip Short Int Variations Immunity CURRENT MONITORING True rms Sensing 3 Phase and Ground Display Accuracy 1 of...

Страница 75: ...The ac voltage transformer is used to supply nominal ac control power to the unit The current transformers are used to power the unit from the line current Normally the unit will operate from the ac a...

Страница 76: ...sed 4 6 7 5 3 9 10 8 Breaker Input Mode Reserved Download Setpoints Reset Zone Interlocking Close Relay Config Remote open close Relay Configuration Disable Unlatched Comm Close OC INST Manual Disable...

Страница 77: ...tected feeder corresponds to a secondary current of approximately one per unit or 5A secondary BEWARE OF MISAPPLICATION OF MAIN CT RATIOS CONSIDER A CIRCUIT WITH A 400A LOAD THAT NORMALLY REQUIRES A 4...

Страница 78: ...www cutler hammer eaton com Supersedes I B 17555C dated November 1999 Fig B 3 Digitrip 3010 3020 Protective Relay Typical AC Schematic FIG B 4 DIGITRIP 3010 3020 TYPICAL AC EXTERNAL CURRENT CONNECTIO...

Страница 79: ...DSPS requires no maintenance or adjustment Use the following procedures to check for proper operation First confirm or test Digitrip 3000 operation with ac power applied according to the guidelines of...

Страница 80: ...Figure B 8 7 Apply ac control voltage again with Phase C current still applied or reapply it The voltage drop shown on the multi meter should decrease to the value for the With Vac 1 Phase I curve of...

Страница 81: ...0 Protective Relay Burden Curves Power in VA Fig B 8 Digitrip 3010 3020 Protective Relay Ct Voltage Drop Curves Ct Power in VA with Vac 3 Phase I Ct Power in VA No Vac 3 Phase I Ct Power in VA with Va...

Страница 82: ...ffective Date 07 02 I B 17555D For more information visit www cutler hammer eaton com Supersedes I B 17555C dated November 1999 Fig B 9 DSPS Output Voltage to Relay DSPS Output True 3 Phase Current On...

Страница 83: ...FITNESS FOR A PARTICULAR PURPOSE OR MERCHANTABILITY OR WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE ARE MADE REGARDING THE INFORMATION RECOMMENDATIONS AND DESCRIPTIONS CONTAINED HEREIN...

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