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BE1-40Q Introduction

CONTENTS- Continued

Section 6

MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

General . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
In-House Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1
Test Plug . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1

Section 7

MANUAL CHANGE INFORMATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

Changes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-1

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Содержание BE1-40Q

Страница 1: ...INSTRUCTION MANUAL FOR LOSS OF EXCITATION RELAY BE1 40Q Publication Number 9 1715 00 990 Revision K 02 01 ...

Страница 2: ... the procedures presented in this manual INTRODUCTION This Instruction Manual provides information concerning the operation and installation of BE1 40Q Loss of Excitation Relays To accomplish this the following is provided Specifications Functional characteristics Installation Operational Tests Mounting Information ...

Страница 3: ...variations in equipment nor does this manual provide data for every possible contingency regarding installation or operation The availability and design of all features and options are subject to modification without notice Should further information be required contact Basler Electric Company Highland Illinois First Printing January 1986 Printed in USA 1998 2001 Basler Electric Co Highland IL 622...

Страница 4: ...tional Description 3 1 Voltage Sensing 3 1 Phase Shift 3 1 Current Sensing 3 2 HI LOW RANGE Switch 3 2 TAP Switch 3 3 Transducer 3 3 Comparator 3 3 Timing 3 3 Outputs 3 3 Targets 3 3 PUSH TO ENERGIZE Output Pushbutton 3 3 Power Supply 3 4 Power Supply Status Output 3 4 Section 4 INSTALLATION 4 1 General 4 1 Relay Operating Precautions 4 1 Dielectric Test 4 1 Mounting 4 1 Connections 4 7 Section 5 ...

Страница 5: ...iv BE1 40Q Introduction CONTENTS Continued Section 6 MAINTENANCE 6 1 General 6 1 In House Repair 6 1 Storage 6 1 Test Plug 6 1 Section 7 MANUAL CHANGE INFORMATION 7 1 Changes 7 1 ...

Страница 6: ... machine voltage will remain above the setting of undervoltage relays but the current induced by the rotor slip will flow in the damper amortisseur windings The excessive heating caused by the current flow reduces machine life exponentially Under either condition BE1 40Q Relays will detect the increased vars at the generator terminals as a loss of excitation and trips the generator to prevent loss...

Страница 7: ...lay of 0 1 to 9 9 seconds can be set on the front panel thumbwheels in increments of 0 1 second Setting both thumbwheels to 0 causes an instantaneous trip signal to be sent when the TAP setting is exceeded Refer to Section 5 for specific setting information MODEL AND STYLE NUMBER DESCRIPTION BE1 40Q Loss of Excitation Relays electrical characteristics and operational features are defined by a comb...

Страница 8: ...ures included in BE1 40Q relays For example if the style number were F3E E10 B1S2F the device would have the following F 60 Hz single phase current sensing 3 120 Vac 4 to 200 W E One output relay with normally open contacts E1 Definite timing 0 Operating power derived from 48 Vdc B One current operated target 1 Push to energize output pushbutton S Power supply status output 2 One auxiliary output ...

Страница 9: ... 9 HI 200 400 600 800 1000 1200 1400 1600 1800 2000 LOW 50 100 150 200 250 300 350 400 450 500 Pickup Accuracy 2 of the front panel setting or 0 1 var whichever is greater for a power factor angle of 90 Dropout Not less than 95 of actual pickup Time Delay Range Definite time delay is adjustable by two front panel thumbwheels over a range of 01 to 99 0 1 to 9 9 seconds in increments of 0 1 seconds ...

Страница 10: ...Vdc 24 to 150 Vdc 5 0 W P Mid Range 125 Vdc 120 Vac 24 to 150 Vdc 90 to 132 Vac 5 2 W 15 1 VA R Low Range 24 Vdc 12 to 32 Vdc 5 1 W S Mid Range 48 Vdc 125 Vdc 24 to 150 Vdc 24 to 150 Vdc 5 0 W 5 2 W T High Range 250 Vdc 240 Vac 62 to 280 Vdc 90 to 270 Vac 5 2 W 14 0 VA NOTE Type R power supply initially requires 14 Vdc to begin operating Once operating the voltage may be reduced to 12 Vdc and oper...

Страница 11: ... the relay has withstood 15 g in each of three mutually perpendicular planes without structural damage or degradation of perfor mance Vibration In standard tests the relay has withstood 2 g in each of three mutually perpendicular planes swept over the range of 10 to 500 Hz for a total of six sweeps 15 minutes each sweep without structural damage or degradation of performance Surge Withstand Capabi...

Страница 12: ...arget Reset Lever Linkage extends through bottom of front cover to reset the target indicator E Target Indicator Optional Magnetically latching indicator is tripped to red to indicate that the output relay either has been energized internally operated or that a minimum of 0 2 amperes has flowed through the contacts current operated F PUSH TO ENERGIZE Optional Momentary pushbutton is accessible thr...

Страница 13: ...2 2 BE1 40Q Human Machine Interface Figure 2 1 Location of Controls and Indicators ...

Страница 14: ...gram Voltage Sensing The monitored voltage input is derived from a system voltage transformer connected phase to phase An internal voltage transformer PT provides isolation and reduces the nominal value of the voltage sensing input i e 120 208 or 240 Vac to internal circuitry requirements Phase Shift Since the voltage input VAB leads the sensed input current IB by an angle of 150 for a unity power...

Страница 15: ... five amperes An internal current transformer CT provides isolation and scaling for proper relay operation The front panel HI LOW RANGE Switch uses the tapped secondary of the internal CT for range selection to increase pickup stability Note that when the connection plugs paddles are removed the CT inputs are shorted HI LOW RANGE Switch The front panel HI LOW RANGE switch selects which secondary w...

Страница 16: ...ay is adjustable from 0 1 to 9 9 seconds in 0 1 second intervals A setting of 00 enables instantaneous no intentional time delay operation Timing is instantaneously reset if the var level reduces to less than the pickup setting For a complete description of timing accuracy refer to Specifications in Section 1 Outputs Defined by the style number the output relay may have either a normally open NO o...

Страница 17: ...tifiers Nominal Voltage Voltage Range Low Range R 24 Vdc 12 to 32 Vdc Mid Range O P S 48 125 Vdc 120 Vac 24 to 150 Vdc 90 to 132 Vac High Range T 125 250 Vdc 120 240 Vac 62 to 280 Vdc 90 to 270 Vac 14 Vdc is required to start the power supply Relay operating power is developed by the wide range isolated low burden flyback switching solid state power supply Nominal 12 Vdc is delivered to the relay ...

Страница 18: ...elay note the following precautions 1 A minimum of 0 2 A in the output circuit is required to ensure operation of current operated targets 2 The relay is a solid state device If a wiring insulation test is required remove the connection plugs and withdraw the cradle from its case 3 When the connection plugs are removed the relay is disconnected from the operating circuit and will not provide syste...

Страница 19: ...4 2 BE1 40Q Installation 2 02 01 D1427 01 Figure 4 1 S1 Case Outline Dimensions Front View ...

Страница 20: ...ETAIL A A SHOWING THE ADDITION OF WASHERS OVER THE BOSS TO TIGHTEN THE RELAY AGAINST THE PANEL CASE Figure 4 2 S1 Case Single Ended Semi Flush Mounting Outline Dimensions Side View Figure 4 3 S1 Case Single Ended Projection Mounting Outline Dimensions Side View ...

Страница 21: ...ETAIL A A SHOWING THE ADDITION OF WASHERS OVER THE BOSS TO TIGHTEN THE RELAY AGAINST THE PANEL CASE Figure 4 4 S1 Case Double Ended Semi Flush Mounting Outline Dimensions Side View Figure 4 5 S1 Case Double Ended Projection Mounting Outline Dimensions Side View ...

Страница 22: ...BE1 40Q Installation 4 5 Figure 4 6 S1 Case Outline Dimensions Rear View ...

Страница 23: ...4 6 BE1 40Q Installation Figure 4 7 S1 Case Panel Drilling Diagram Semi Flush Mounting Figure 4 8 S1 Case Single Ended Panel Drilling Diagram Rear View Projection Mounting ...

Страница 24: ...ections should be made with minimum wire size of 14 AWG For the ground wire refer to the following note Typical sensing input connections are shown in Figure 4 10 Typical output connections are shown in Figure 4 11 Internal wiring diagrams are shown in Figures 4 12 through 4 14 All connections shown in this manual assume ABC rotation Relay circuitry is connected to the case terminals by removable ...

Страница 25: ...4 8 BE1 40Q Installation Figure 4 10 Sensing Input Connections Figure 4 11 Output Connections ...

Страница 26: ...BE1 40Q Installation 4 9 Figure 4 12 Interconnection With Current Operated Targets Figure 4 13 Interconnection With Current Operated Targets and Power Supply Status Output ...

Страница 27: ...4 10 BE1 40Q Installation Figure 4 14 Interconnection With Internally Operated Target and Auxiliary Output Contacts SPDT ...

Страница 28: ...e the point where the steady state stability limit arc intersects the capability curve The 8 slope applies to all BE1 40Q Relays Figure 5 1 An Example of BE1 40Q Relay Operating Characteristics The pickup setting is determined by the point where the BE1 40Q characteristic intersects the Q axis in per unit pu quantities Therefore for the example shown in Figure 5 1 the pickup is 0 4 pu The actual p...

Страница 29: ... in test equipment When evaluating results consider the inherent error of the test equipment Test equipment should be accurate within one percent or better Pickup Verification Step 1 Connect the test circuit as shown in Figure 5 2 Apply appropriate operating power depending on the power supply option refer to the Style Number Identification Chart in Section 1 to terminals 3 and 4 The POWER LED sho...

Страница 30: ...nal value of the sensing input as designated by the second digit of the style number Refer to Table 5 1 Table 5 1 Nominal Sensing Input Voltage Second Digit of Style Number Nominal Ac Voltage 3 120 6 208 9 240 Step 6 Adjust the phase of the current source to produce an output that lags the voltage input by 60 Step 7 Slowly increase the magnitude of the current source until the PICKUP LED lights On...

Страница 31: ...ustments on the BE1 40Q Relay RANGE Switch LOW position TAP Switch Position A minimum TIME DELAY Switches 10 1 0 second Step 4 Apply appropriate operating power depending on the power supply option to terminals 3 and 4 The POWER LED should light Step 5 Adjust the voltage source to the nominal value of the sensing input as designated by the second digit of the style number Step 6 Adjust the current...

Страница 32: ...ent source phase angle for each of the values indicated in Table 5 3 Record the magnitude of current required to receive each pickup indication To measure pickup for each phase angle setting slowly increase the current magnitude from zero or a value less than the pickup value until the PICKUP LED lights and an output contact operation occurs Table 5 3 Current Magnitudes Required for Pickup Current...

Страница 33: ...ence the Style Number Identification Chart Figure 1 4 Pickup is set to 125 Reference Table 1 1 Test results are obtained as given in Step 1 For this example we are using the data shown in columns 1 and 2 of Table 5 4 below Step 1 Calculate P and Q for a current phase angle of 20 20 Note that the above results for a phase angle of 20 have been entered in Table 5 4 columns 3 and 4 first row Similarl...

Страница 34: ...al Power Watts Reactive Power Vars 20 20 3 806 247 76 90 18 30 30 2 902 174 12 100 53 40 40 2 404 127 60 107 07 50 50 2 107 93 82 111 81 60 60 1 927 66 75 115 62 70 70 1 827 43 28 118 92 80 80 1 788 21 51 121 98 90 90 1 804 0 00 125 00 100 100 1 879 22 60 128 18 110 110 2 024 47 95 131 74 120 120 2 267 78 54 136 04 Figure 5 3 BE1 40Q Relay Characteristics Plotted on Complex Power Plane ...

Страница 35: ...5 8 BE1 40Q Setting and Testing Figure 5 4 Blank Graph ...

Страница 36: ...in excess of 10 years at storage temperatures less than 40 C Typically the life expectancy of the capacitor is cut in half for every 10 C rise in temperature Storage life can be extended if at one year intervals power is applied to the relay for a period of thirty minutes TEST PLUG Test plugs Basler part number 10095 or G E part number XLA12A1 provide a quick easy method of testing relays without ...

Страница 37: ... Item H 4 4 step 3 4 7 Step 3 Time delay range is 0 1 to 9 90 seconds adjustable in increments of 0 1 seconds This was previously unclear or in some cases erroneous Page 1 8 RFI specification added Pages 1 6 5 1 minor editing 11826 01 10 91 G Deleted references to mho characteristic Corrected Figure 4 3 Sensing Input Test Setup current sensing input terminals 8 and 9 were reversed on earlier versi...

Страница 38: ...eted 500 Vdc from Resistive Output Circuits Deleted all references to Service Manual Updated Style Number Identification Chart by changing Power Supply Type T from 230 Vac to 240 Vac Added new power supply information to Specifications and Section 3 starting with Basler Electric enhanced the power supply design Changed the format of the manual 1033 10 27 98 K Updated S1 case drawings in Section 4 ...

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