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BE1-87B Human-Machine Interface

9282300990 Rev L

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Summary of Contents for BE1-87B

Page 1: ...INSTRUCTION MANUAL FOR BUS DIFFERENTIAL RELAY BE1 87B Publication Number 9282300990 Revision L 02 07 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 2: ...w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 3: ...ional Description Installation Information Testing Procedures WARNING To avoid personal injury or equipment damage only qualified personnel should perform the procedures presented in this manual CAUTI...

Page 4: ...interest of Basler Electric It is not the intention of this manual to cover all details and variations in equipment nor does this manual provide data for every possible contingency regarding installat...

Page 5: ...e phase version of the BE1 87B C Section 1 Added UL recognition to specifications Changed voltage rating specification from 75 of tap setting to 300 Vac for 1 hour Section 2 Corrected equation referen...

Page 6: ...dded Two Different Ratio CTs paragraph to Section 2 Application Added information to Internal Faults paragraphs in Section 2 Application Improved Figure 2 7 J Improved Figure 2 7 K Added option R moun...

Page 7: ...Introduction v CONTENTS SECTION 1 GENERAL INFORMATION 1 1 SECTION 2 APPLICATION 2 1 SECTION 3 HUMAN MACHINE INTERFACE 3 1 SECTION 4 INSTALLATION 4 1 SECTION 5 TESTING 5 1 w w w E l e c t r i c a l P a...

Page 8: ...vi BE1 87B Introduction 9282300990 Rev L This page intentionally left blank w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 9: ...urrent Rating 1 3 Voltage Rating 1 3 Targets 1 3 Isolation 1 3 Surge Withstand Capability SWC 1 3 Impulse Test 1 3 Radio Frequency Interference 1 3 Electrostatic Discharge ESD 1 4 UL Recognition 1 4 G...

Page 10: ...ii BE1 87B General Information 9282300990 Rev L This page intentionally left blank w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 11: ...onse characteristics for sensing input ranges one and two are shown in Section 5 Testing Standard Features Available in single phase or three phase models S1 and M1 double ended drawout cases and 19 r...

Page 12: ...flush case mounting SPECIFICATIONS Timing A maximum of seven milliseconds at 1 5 times the pickup setting A maximum of 5 5 milliseconds above six times the pickup setting Figure 1 2 illustrates typic...

Page 13: ...ltage Rating The nature of the BE1 87B relay s application is that voltage is not applied continuously For calibration and test purposes it may be of value to apply input voltage for a longer duration...

Page 14: ...03391 complies with the relevant standards of Gosstandart of Russia Issued by accredited certification body POCC RU 0001 11ME05 Environment Temperature Operating Range 40 C to 70 C 40 F to 158 F Stora...

Page 15: ...2 13 Application with Mixed Multi Ratio CTs 2 13 Current Element Setting 2 13 Minimum Fault to Trip Voltage Element 2 14 SAMPLE CALCULATION 2 15 CT TEST CIRCUIT CALCULATIONS 2 16 General 2 16 Definit...

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Page 17: ...e protect against exceeding the short time rating of the internal SCRs The relay can be used in any application where the total secondary current is not more than the current waveform of a fully offse...

Page 18: ...lgebraically to the resistance of the CT circuit in question Less sensitive protection will occur as a result of a higher pickup setting It may be possible although not recommended to use the differen...

Page 19: ...ingle Phase 87B 1 RELAY HOUSE GROUND TO SURGE GROUND D2853 3 5 26 99 86 5 6 7 86 5 6 7 86 5 6 7 Single Phase 87B 2 Single Phase 87B 3 86 86 86 Three Phase 87B Relay 1 2 3 4 5 6 7 N 1 2 3 Surge Ground...

Page 20: ...rams for these schemes are shown in Figures 2 3 and 2 4 The dc connections will be similar to those shown in Figure 2 2 Only ground fault protection will be provided when one relay is applied Applicat...

Page 21: ...d in the switchyard and as close as possible to the current transformers Optimally the junction point should be equidistant from all current transformers OPERATING PRINCIPLES The BE1 87B high impedanc...

Page 22: ...istributed toroidal winding on the tap used saturates completely it produces no voltage and the impedance as seen at the secondary winding is very nearly equal to the winding resistance very small imp...

Page 23: ...greater than indicated by the average and will continue to increase in magnitude as the excitation is increased Because the peak voltages during internal faults will be much greater than the peak volt...

Page 24: ...current and hence the primary current of T1 is above the pickup level of the relay a trip output will be provided via the output relay When relay operating power is not available the BE1 87B can no l...

Page 25: ...rms symmetrical volts to corresponding peak volts of a fully offset voltage wave Where CTs with taps set on other than the full winding are involved the voltage developed across the full winding of th...

Page 26: ...3 Differential Pickup Current Pickup current is defined as the rms value of a symmetrical sinusoidal current that must flow into the 87B in order to provide a contact output The BE1 87B has a pickup...

Page 27: ...the current circuit all of the test voltage will be dropped across an external test resistor and neither the LED nor the alarm output will operate If this occurs further current circuit tests should...

Page 28: ...margin for safety The following comments may be made with respect to the evaluation of Equation 5 It is only necessary to calculate three phase and single phase to ground faults If the results yield...

Page 29: ...l three phase symmetrical fault current in the fault CT with P 1 and the maximum external single phase to ground symmetrical fault current in the fault CT with p 2 d Use the highest VDIFF resulting fr...

Page 30: ...rcuit Calculations sub section Minimum Fault to Trip Voltage Element After the differential voltage setting has been established a check should be made to determine the minimum internal fault current...

Page 31: ...zone includes five breakers all rated at 69 kV 1500 MVA and 1200 amperes with a maximum interrupting rating of 12 500 amperes The excitation curve for the 1200 5 bushing CTs in these breakers is shown...

Page 32: ...current sensitivity of the relay is 60 amperes primary If a higher minimum current sensitivity is used the minimum current required for pickup will be correspondingly higher For example with a 1200 5...

Page 33: ...5000 8 Calculate I Healthy Test Current I HT by dividing the Test Source voltage V Test by Zbus 100 value of external R Test resistor 100 ohms 9 Solve for voltage drop across the 100 ohm resistor R x...

Page 34: ...shorted out I UHT V Test R Test or 30 100 0 3 amp 5 To guarantee security of the relay during the Shorted CT Test set the relay Pickup Current to 0 5 amperes For additional information see the paragra...

Page 35: ...ntrol 3 3 Pickup Current Trip LED 3 3 Reset Pushbutton 3 4 Trip Test Pushbutton 3 4 CT Test Pushbutton 3 4 CIRCUIT BOARD CONTROLS 3 4 Intentional Delay Jumper 3 5 Figures Figure 3 1 BE1 87B Controls a...

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Page 37: ...ing paragraphs refer to Figures 3 1 and 3 2 Figure 3 1 shows the single phase version of the BE1 87B and Figure 3 2 shows the three phase version of the BE1 87B Controls and indicators of a 19 rack mo...

Page 38: ...3 2 BE1 87B Human Machine Interface 9282300990 Rev L Figure 3 2 BE1 87B Controls and Indicators Three Phase Version w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 39: ...nce State 60 Hz nominal 50 Hz Nominal High Impedance Triggered 4000 j3300 5100 40 4500 j3100 5500 35 Low Impedance Not Triggered 0 05 0 05 Example With the pickup voltage set at 150 volts rms the inpu...

Page 40: ...uit is tested by depressing the CT Test Pushbutton for one minute or until the CT OV LED lights A healthy CT input circuit is indicated by a lit CT OV LED and closed Alarm output contacts A shorted CT...

Page 41: ...ipping the bus for a fault on the fused tap The current detector circuit reset time is approximately 1 millisecond so that the ac and dc components of the differential current as reproduced at the CT...

Page 42: ...3 6 BE1 87B Human Machine Interface 9282300990 Rev L This page intentionally left blank w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 43: ...ons Front View 4 8 Figure 4 8 M1 Case Semi Flush Mounting Outline Dimensions Side View 4 9 Figure 4 9 M1 Case Double Ended Projection Mounting Side View 4 10 Figure 4 10 M1 Case Double Ended Projectio...

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Page 45: ...insulation test is required remove the connection plugs and withdraw the cradle from its case 2 When the connection plugs are removed the relay is disconnected from the operating circuit and will not...

Page 46: ...4 2 BE1 87B Installation 9282300990 Rev L D2853 25 VSD 12 20 00 Figure 4 1 S1 Case Outline Dimensions Front View w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 47: ...9282300990 Rev L BE1 87B Installation 4 3 D2856 01 VSD 12 20 00 Figure 4 2 S1 Case Double Ended Semi Flush Mounting Side View w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 48: ...2856 06 VSD 12 20 00 DETAIL A A SHOWING THE ADDITION OF WASHERS OVER THE BOSS TO TIGHTEN THE RELAY AGAINST THE PANEL CASE PANEL Figure 4 3 S1 Case Double Ended Projection Mounting Side View w w w E l...

Page 49: ...9282300990 Rev L BE1 87B Installation 4 5 Figure 4 4 S1 Case Double Ended Outline Dimensions Rear View w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 50: ...4 6 BE1 87B Installation 9282300990 Rev L Figure 4 5 S1 Case Panel Drilling Diagram Semi Flush Mounting w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 51: ...9282300990 Rev L BE1 87B Installation 4 7 Figure 4 6 S1 Case Panel Drilling Diagram Projection Mounting w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 52: ...4 8 BE1 87B Installation 9282300990 Rev L D2856 09 VSd 12 20 00 Figure 4 7 M1 Case Outline Dimensions Front View w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 53: ...9282300990 Rev L BE1 87B Installation 4 9 D2856 10 VSD 12 20 00 Figure 4 8 M1 Case Semi Flush Mounting Outline Dimensions Side View w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 54: ...D2856 12 06 15 99 DETAIL A A SHOWING THE ADDITION OF WASHERS OVER THE BOSS TO TIGHTEN THE RELAY AGAINST THE PANEL CASE PANEL Figure 4 9 M1 Case Double Ended Projection Mounting Side View w w w E l e...

Page 55: ...9282300990 Rev L BE1 87B Installation 4 11 D1427 09 12 16 93 Figure 4 10 M1 Case Double Ended Projection Mounting Outline Dimensions Rear View w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 56: ...4 12 BE1 87B Installation 9282300990 Rev L Figure 4 11 M1 Case Panel Drilling Diagram Semi Flush Mounting w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 57: ...5 4 2 63 66 8 69 17 5 25 6 4 5 25 133 4 75 19 1 DIA 20 PLACES 1 56 14 3 DIA 5 PLACES 4 16 105 6 6 20 157 6 11 12 19 20 7 41 188 1 17 5 69 37 3 1 47 1 TYP 12 7 50 133 4 5 25 6 4 25 66 8 2 63 25 4 1 00...

Page 58: ...4 14 BE1 87B Installation 9282300990 Rev L P0046 10 Figure 4 13 19 Horizontal Rack Mount Front View Shown Vertically w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 59: ...9282300990 Rev L BE1 87B Installation 4 15 P0046 09 Figure 4 14 19 Horizontal Rack Mount Side View Shown Vertically w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 60: ...CT test circuit are defined by the application The Pickup Voltage setting for the specific bus protection application is required before operating parameters for the CT test circuit can be determined...

Page 61: ...CTB 16 15 POWER SUPPLY POW ER 19 20 17 18 TRIP 1 13 14 ALARM 1 CTC EXTERNAL CASEGROUND TERMINAL ZC 2 D2853 12 10 10 03 6 ZA CTA 5 COM 7 10 TEST INTERNAL CIRCUITRY Figure 4 16 BE1 87B Three Phase Inter...

Page 62: ...SEGROUND TERMINAL 10 TEST COM 7 17 TRIP 1 TRIP 2 11 12 RELAY TROUBLE 16 15 POWER SUPPLY POW ER 13 14 ALARM D2853 17 10 10 01 CT 5 INTERNAL CIRCUITRY 6 Figure 4 17 BE1 87B Single Phase Internal Connect...

Page 63: ...100 ohms 50 W X0 X1 X2 H0 H1 H2 COM 30V 60V RELAY CONNECTIONS 240V 120V COM SOURCE CONNECTIONS D2862 13 01 03 03 Figure 4 18 CT Diagnostic Test Source Assembly Internal Connection Diagram w w w E l e...

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Page 65: ...5 3 Alarm Voltage Test 5 4 Pickup Voltage Test 5 4 Pickup Current Test 5 5 Trip LED Loss of Power Test 5 6 Trip Time Test 5 6 Trip Time Delay Test 5 7 Figures Figure 5 1 Side View of Cradle Assembly...

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Page 67: ...resulting voltage drop will light the CT OV LED and close the Alarm output contacts terminals 13 and 14 If a CT or current circuit cable is shorted when the test voltage is applied all of the voltage...

Page 68: ...BOARD CONTROL BOARD POWER SUPPLY D2862 15 01 07 03 POWER SUPPLY CONTROL BOARD SCR BOARD Figure 5 1 Side View of Cradle Assembly M1 or 19 Rack Mount and S1 Configuration Figure 5 2 Circuit Board Extend...

Page 69: ...fy that the power supply voltage is disconnected terminals 15 and 16 2 Remove the front panel of the relay four screws on either side of the cradle 3 Disconnect the ribbon cable that runs between the...

Page 70: ...14 closes The alarm relay has intentional time delay to prevent nuisance alarms during normal operating voltage excursions Apply the voltage to the relay and verify that the alarm contact between rel...

Page 71: ...matically turn off when the trip contact closes Preset the Test Pickup Voltage to 190 volts rms Apply the test voltage and note that the relay does not trip Slowly increase the test voltage until the...

Page 72: ...Control to the 0 25 ampere position Apply the current test source and increase current until the output contacts close and the Trip LED lights 3 Remove the current test source and verify that the Tri...

Page 73: ...ge the jumper on the Control Board from position 1 2 to 2 3 see Figure 3 3 Connect the test circuit as shown in Figure 5 6 The test set timer should be set to start on the application of current and s...

Page 74: ...5 8 BE1 87B Testing 9282300990 Rev L This page intentionally left blank w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Page 75: ...ROUTE 143 BOX 269 HIGHLAND IL 62249 USA http www basler com info basler com PHONE 1 618 654 2341 FAX 1 618 654 2351 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

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