Basler-electric BE1-87T Manuel d'utilisateur

INSTRUCTION MANUAL FOR TRANSFORMER DIFFERENTIAL RELAY BE1-87T Publication: 9171300990 Revision: V 03/12 P0052-22Serial No. XXXXXXXXXXXXStyle No. D

viii BE1-87T Introduction 9171300990 Rev V

5-4 BE1-87T Test Procedures 9171300990 Rev V Check: Therefore: Use Equation 1 or 1a. From Figure 1-2 (the percentage restraint characteristic of

9171300990 Rev V BE1-87T Test Procedures 5-5 OR IslopeITTtrip21100121max= −× × (Equation 3a) 2) When: the maximum tr

5-6 BE1-87T Test Procedures 9171300990 Rev V Check: Therefore: Use Equation 3 or 3a. From Figure 1-2 (the percentage restraint characteristic o

9171300990 Rev V BE1-87T Test Procedures 5-7 Test Setup Diagrams Refer to the appropriate test setup diagram under “Related Topics.” Figure 5-1. T

5-8 BE1-87T Test Procedures 9171300990 Rev V Figure 5-3. Test Setup: Three-Phase, Sensing Input Type E, Output Option F Figure 5-4. Test Set

9171300990 Rev V BE1-87T Test Procedures 5-9 Verification Tests: 5 Amp CT, 50 or 60 Hz Units CAUTION Current supplied to the BE1-87T input terminal

5-10 BE1-87T Test Procedures 9171300990 Rev V If there are more than three inputs (as in some single-phase units), continue substituting every hig

9171300990 Rev V BE1-87T Test Procedures 5-11 Step 3. Set the input under test to the 3.9 tap position as shown in Table 5-2. Set the RESTRAINED PI

5-12 BE1-87T Test Procedures 9171300990 Rev V Step 2. Apply 2.0 A at 50 or 60 Hz, as appropriate for the style, to Input 1. The REST. TRIP LED shou

9171300990 Rev V BE1-87T Test Procedures 5-13 Response Time Verification Step 1. Connect the relay as appropriate (refer to Figures 5-1 through 5-4

9171300990 Rev V BE1-87T General Information i SECTION 1 • GENERAL INFORMATION TABLE OF CONTENTS SECTION 1 • GENERAL INFORMATION ...

5-14 BE1-87T Test Procedures 9171300990 Rev V Verification Tests: 1 Amp CT, 50 or 60 Hz Units CAUTION Current supplied to the BE1-87T input termina

9171300990 Rev V BE1-87T Test Procedures 5-15 Step 8. If the relay has more than two inputs, reconnect the relay by substituting the Input 3 termin

5-16 BE1-87T Test Procedures 9171300990 Rev V Step 2. Connect the input being tested to the current source as shown in the appropriate diagram, Fig

9171300990 Rev V BE1-87T Test Procedures 5-17 Second-Harmonic Restraint Verification Step 1. Set the INPUT 1 (tap) switches to the 0.4 A position.

5-18 BE1-87T Test Procedures 9171300990 Rev V Response Time Verification Step 1. Connect the relay as appropriate (refer to Figures 5-1 through 5-4

9171300990 Rev V BE1-87T Test Procedures 5-19 Operational Test Procedures The functional tests given below provide a simplified method of checking t

5-20 BE1-87T Test Procedures 9171300990 Rev V Step 7. For 50 Hz Units: Holding the 50 Hz current constant at tap value, add a 100 Hz (I100) current

9171300990 Rev V BE1-87T Test Procedures 5-21 Table 5-9. Input Signals to Comparison Circuits Based On Jumper Positions Jumper Ain Bin Cin WYE I

5-22 BE1-87T Test Procedures 9171300990 Rev V This verifies the A- and C-phase differential circuits which respond together as provided earlier in

9171300990 Rev V BE1-87T Test Procedures 5-23 This verifies the A- and C-phase differential circuits which respond together as provided earlier in

ii BE1-87T General Information 9171300990 Rev V

5-24 BE1-87T Test Procedures 9171300990 Rev V This verifies the B- and C-phase differential circuits which respond together as provided earlier in

9171300990 Rev V BE1-87T Difference Data i SECTION 6 • DIFFERENCE DATA TABLE OF CONTENTS SECTION 6 • DIFFERENCE DATA ...

ii BE1-87T Difference Data 9171300990 Rev V

9171300990 Rev V BE1-87T Difference Data 6-1 SECTION 6 • DIFFERENCE DATA General This section provides the information necessary to support BE1-87T,

6-2 BE1-87T Difference Data 9171300990 Rev V Figure 6-1. Style Number Identification Chart

9171300990 Rev V BE1-87T Difference Data 6-3 Figure 6-2. Typical Internal Connections, Three-Phase, Sensing Input Type F, Output Option E

6-4 BE1-87T Difference Data 9171300990 Rev V Figure 6-3. Case Terminals, Sensing Input Type F, Output Option E Figure 6-4. Test Setup, Sensi

9171300990 Rev V BE1-87T Setting Notes i APPENDIX A • SETTING NOTES TABLE OF CONTENTS APPENDIX A • SETTING NOTES ...

ii BE1-87T Setting Notes 9171300990 Rev V

9171300990 Rev V BE1-87T Setting Notes A-1 APPENDIX A • SETTING NOTES Introduction These setting notes are to clarify several of the settings steps

9171300990 Rev V BE1-87T General Information 1-1 SECTION 1 • GENERAL INFORMATION Introduction These instructions provide information concerning the

A-2 BE1-87T Setting Notes 9171300990 Rev V Setting Note 2 IA+IB+IC=0 IA=-(IB+IC) V=IARW+(IA-IC)(RL+RR)-(IB-IA)(RL+RR) =IA(RW+RL+RR+RL+RR)-IB

9171300990 Rev V BE1-87T Setting Notes A-3 Setting Note 3 Assuming Z1=Z2, φφφ323II ×= Phase 2 carries twice the fault current returning from the

A-4 BE1-87T Setting Notes 9171300990 Rev V Setting Note 4 1) Find the maximum pu fault current for external faults (ie). 2) Assume that one of the

9171300990 Rev V BE1-87T Setting Notes A-5 Figure A-5. BE1-87T Slope vs. MT and IT Figure A-6. BE1-87T Margin vs. MT and IT IT051005101520

A-6 BE1-87T Setting Notes 9171300990 Rev V Setting Note 6 Inrush vs. Unrestraint Tap Compare the unrestraint pickup setting defined in NOTE 4 to th

9171300990 Rev V BE1-87T Setting Notes A-7 IFsIFSF =Setting Note 7 CT Performance Evaluation: Saturation Factor The secondary current delivered by

A-8 BE1-87T Setting Notes 9171300990 Rev V Figure A-8. CT Terminal and Excitation Voltages This first definition of saturation relates the CT term

9171300990 Rev V BE1-87T Setting Notes A-9 To compare the two expressions, we take the ratio SF`/SF: Since this expression varies with the ratio o

A-10 BE1-87T Setting Notes 9171300990 Rev V Figure A-10. Comparing SF and SF` Figure A-11 illustrates how a lower Rs value reduces the difference b

1-2 BE1-87T General Information 9171300990 Rev V Application In general, power transformers have different values of current flowing through their p

12570 State Route 143Highland IL 62249-1074 USAwww.basler.com, [email protected] +1 618.654.2341 Fax +1 618.654.2351®

9171300990 Rev V BE1-87T General Information 1-3 Three-phase BE1-87T relays use second-harmonic sharing. The second-harmonic content of all three ph

1-4 BE1-87T General Information 9171300990 Rev V Model and Style Number The electrical characteristics and operational features of the BE1-87T Trans

9171300990 Rev V BE1-87T General Information 1-5 Specifications The BE1-87T relay is available in either single-phase or three-phase configurations

1-6 BE1-87T General Information 9171300990 Rev V Table 1-1. Multiples of Tap Front Panel Setting % 15 20 25 30 35 40 45 50 55 60 Maximum R

9171300990 Rev V BE1-87T General Information 1-7 Outputs Output contacts are rated as follows. Resistive 120/240 Vac Make 30 A for 0.2 seconds

1-8 BE1-87T General Information 9171300990 Rev V Timing (For 60 Hz units only) Refer to Figure 1-3 for Unrestrained Response Times and Restrained Re

9171300990 Rev V BE1-87T General Information 1-9 Isolation In accordance with IEC 255-5 and ANSI/IEEE C37.90-1989, one minute dielectric (high poten

1-10 BE1-87T General Information 9171300990 Rev V Weight 22.3 lbs (10.1 kg) maximum (three-phase unit) 19.5 lbs (8.85 kg) maximum (single-phase uni

9171300990 Rev V BE1-87T Controls and Indicators i SECTION 2 • CONTROLS AND INDICATORS TABLE OF CONTENTS SECTION 2 • CONTROLS AND INDICATORS ...

ii BE1-87T Controls and Indicators 9171300990 Rev V

9171300990 Rev V BE1-87T Controls and Indicators 2-1 SECTION 2 • CONTROLS AND INDICATORS Location of Controls and Indicators Table 2-1 lists and bri

2-2 BE1-87T Controls and Indicators 9171300990 Rev V Letter Control or Indicator Function F PUSH-TO-ENERGIZE OUTPUT Switches Option Two momentary

9171300990 Rev V BE1-87T Controls and Indicators 2-3 Letter Control or Indicator Function Q % OF TRIP Indicators Option When the % OF TRIP pushb

2-4 BE1-87T Controls and Indicators 9171300990 Rev V Figure 2-1. Sensing Input Range 1 or 3 Three-Phase, Three Inputs

9171300990 Rev V BE1-87T Controls and Indicators 2-5 Figure 2-2. Sensing Input Range 1 or 3, Single-Phase, Five Inputs

9171300990 Rev V BE1-87T Introduction i INTRODUCTION This instruction manual provides information about the operation and installation of the BE1-87

2-6 BE1-87T Controls and Indicators 9171300990 Rev V Figure 2-3. Sensing Input Range 2 or 4, Three-Phase, Two Inputs

9171300990 Rev V BE1-87T Controls and Indicators 2-7 Figure 2-4. Controls Mounted Inside the Relay SECTION OF THE (VERTICAL)MOTHER BOARD A

2-8 BE1-87T Controls and Indicators 9171300990 Rev V Figure 2-5. Sensing Input Range 2 or 4, Option 1-1, Single-Phase, Five Inputs, % OF TRIP Opt

9171300990 Rev V BE1-87T Functional Description i SECTION 3 • FUNCTIONAL DESCRIPTION TABLE OF CONTENTS SECTION 3 • FUNCTIONAL DESCRIPTION ...

ii BE1-87T Functional Description 9171300990 Rev V

9171300990 Rev V BE1-87T Functional Description 3-1 SECTION 3 • FUNCTIONAL DESCRIPTION General BE1-87T relays are solid-state devices that protect t

3-2 BE1-87T Functional Description 9171300990 Rev V Figure 3-1. Functional Block Diagram NOTES 1 Present in three-phase units ONLY. 2 Inputs

9171300990 Rev V BE1-87T Functional Description 3-3 Restrained Trip Output Restrained trip output contacts are subject to three types of restraint (

3-4 BE1-87T Functional Description 9171300990 Rev V Auxiliary Relay Option Auxiliary relays (Option 3-1, 3-2 or 3-5 in the tenth position of the Sty

9171300990 Rev V BE1-87T Functional Description 3-5 NOTE Prior to September 2007, the BE1-87T target indicators consisted of magnetically latched, d

ii BE1-87T Introduction 9171300990 Rev V First Printing: June 1990 Printed in USA Copyright © 1990-2012 Basler Electric, Highland Illinois 62249 US

3-6 BE1-87T Functional Description 9171300990 Rev V

9171300990 Rev V BE1-87T Installation i SECTION 4 • INSTALLATION TABLE OF CONTENTS SECTION 4 • INSTALLATION ...

ii BE1-87T Installation 9171300990 Rev V Figure 4-29. Three-Phase Connections, Delta-Wye Configuration, CT Compensation ...

9171300990 Rev V BE1-87T Installation 4-1 SECTION 4 • INSTALLATION General When not shipped as part of a control or a switchgear panel, the relay is

4-2 BE1-87T Installation 9171300990 Rev V Mounting Because the BE1-87T, Transformer Differential Relay, is of solid-state design. It does not have t

9171300990 Rev V BE1-87T Installation 4-3 Figure 4-2. M1 Case Dimensions, Rear View, Double Ended, Semi-Flush Mount

4-4 BE1-87T Installation 9171300990 Rev V Figure 4-3. M1 Case Dimensions, Side View, Double Ended, Semi-Flush Mount P0066-7610-32 SCREWS10-32 S

9171300990 Rev V BE1-87T Installation 4-5 Figure 4-4. Panel Cutting/Drilling, Double Ended, Projection Mount, M1 Case

4-6 BE1-87T Installation 9171300990 Rev V Figure 4-5. M1 Case Dimensions, Rear View, Double Ended, Projection Mount

9171300990 Rev V BE1-87T Installation 4-7 Figure 4-6. M1 Case Dimensions, Side View, Double Ended, Projection Mount P0066-7810-32 SCREWS10-32

9171300990 Rev V BE1-87T Introduction iii REVISION HISTORY The following information provides a historical summary of the changes made to the BE1-87

4-8 BE1-87T Installation 9171300990 Rev V Figure 4-7. M1 Case Cover Dimensions, Front View P0066-79

9171300990 Rev V BE1-87T Installation 4-9 Dielectric Test In accordance with IEC 255-5 and ANSI/IEEE C37.90-1989, one minute dielectric (high potent

4-10 BE1-87T Installation 9171300990 Rev V Figure 4-9. Case Terminals: Three-Phase, Two Input (Sensing Input Type E), Output Option E Figure 4-

9171300990 Rev V BE1-87T Installation 4-11 Figure 4-11. Case Terminals: Three-Phase, Three Input (Sensing Input Type G), Output Optio

4-12 BE1-87T Installation 9171300990 Rev V Figure 4-12. Internal Connections: Single-Phase, Five Input (Sensing Input Type D), Output Option

9171300990 Rev V BE1-87T Installation 4-13 Figure 4-13. Internal Connections: Three-Phase, Two Input (Sensing Input Type E), Output Option E

4-14 BE1-87T Installation 9171300990 Rev V Figure 4-14. Internal Connections: Three-Phase, Two Input (Sensing Input Type E), Output Option

9171300990 Rev V BE1-87T Installation 4-15 Figure 4-15. Internal Connections: Three-Phase, Three Input (Sensing Input Type G), Output Option E

4-16 BE1-87T Installation 9171300990 Rev V Figure 4-17. Control Circuits: Three-Phase, Two Input (Sensing Input E), Output Option E Figur

9171300990 Rev V BE1-87T Installation 4-17 Figure 4-19. Control Circuits: Three-Phase, Three Input (Sensing Input G), Output E Relay Disassembly Pr

iv BE1-87T Introduction 9171300990 Rev V Manual Revision and Date Change M, 04/99  Table 3-1 changed mid range nominal volt 125 Vac to 120 Vac. 

4-18 BE1-87T Installation 9171300990 Rev V Step 2. Withdraw the cradle assembly (see Figure 4-19). Step 3. Remove the four screws that attach the

9171300990 Rev V BE1-87T Installation 4-19 Figure 4-21. Unused Input-Disabling Jumpers, Analog #1 Board: Option 1-0 Figure 4-22. Unused In

4-20 BE1-87T Installation 9171300990 Rev V Single-Phase Units Three Input-Disabling Jumpers are located on each Analog Board #1 as shown in Figure 4

9171300990 Rev V BE1-87T Installation 4-21 Figure 4-23. Typical Single-Phase Sensing Connections Figure 4-24. Single-Phase Connections, Delta-Wy

4-22 BE1-87T Installation 9171300990 Rev V Figure 4-25. Single-Phase Connections, Wye-Wye Configuration 1311C121212111313111204-16-99D1

9171300990 Rev V BE1-87T Installation 4-23 Figure 4-26. Single-Phase Connections, Delta-Delta-Wye Configuration 03-12-98D1186-03CBACBAY1Y2Y

4-24 BE1-87T Installation 9171300990 Rev V Figure 4-27. Single-Phase Connections, Delta-Wye Configuration With Two Load Busses Three-Phase Input Se

9171300990 Rev V BE1-87T Installation 4-25 CAUTION Assigning 30° Phase Shift Compensation requires disassembly of the relay, and must be done when t

4-26 BE1-87T Installation 9171300990 Rev V Figure 4-28. 30° Phase Shift Compensation Jumpers The transformer in the example shown in Figure 4-28

9171300990 Rev V BE1-87T Installation 4-27 Figure 4-29. Three-Phase Connections, Delta-Wye Configuration, CT Compensation Figure 4-30. Three-P

9171300990 Rev V BE1-87T Introduction v Manual Revision and Date Change I, 01/95  Added outline (box) to Figure 5-8 to highlight the figure.  Pa

4-28 BE1-87T Installation 9171300990 Rev V Figure 4-31. Three-Phase Connections, Wye-Delta Configuration, Internal Phase Compensation The transfor

9171300990 Rev V BE1-87T Installation 4-29 Figure 4-32. Three-Phase Connections, Delta-Delta Configuration H2H1H3CBAX2X1X3CBA17181516

4-30 BE1-87T Installation 9171300990 Rev V Figure 4-33. Three-Phase Connections, Wye-Wye or Autotransformer Configuration, CT Compensation The Wye

9171300990 Rev V BE1-87T Installation 4-31 Figure 4-34. Three-Phase Connections, Wye-Wye or Autotransformer Configuration, Internal Phase

4-32 BE1-87T Installation 9171300990 Rev V Figure 4-35. Three-Phase Connections, Autotransformer With Loaded Delta Tertiary The transformer in the

9171300990 Rev V BE1-87T Installation 4-33 Setting the BE1-87T The following setting procedures include two examples: 1. Using the MVA rating of th

4-34 BE1-87T Installation 9171300990 Rev V Table 4-1. List of Variables DP The driving input number, a procedural term designating the current input

9171300990 Rev V BE1-87T Installation 4-35 Figure 4-36. Application Example: Autotransformer With Tertiary Winding (See Figure 4-34 for 3-phase con

4-36 BE1-87T Installation 9171300990 Rev V Three-Phase Units only: When using either ∆2 or ∆1 jumper positions, shown in Figure 2-4, multiply the

9171300990 Rev V BE1-87T Installation 4-37 Step 10. Determine the CT mismatch (MN): LOWTERTIARY−=)((−)=()−()==MNIITT1003232100182275560

vi BE1-87T Introduction 9171300990 Rev V

4-38 BE1-87T Installation 9171300990 Rev V HIGH TERTIARY LOW )7.0(283=BV 6.19= )7.0(223=BV 4.15= )7.0(353=BV 5.24= Step 14. Determine the bu

9171300990 Rev V BE1-87T Installation 4-39 NOTE Maximum recommended SF=0.5. Step 17. Determine the maximum external fault multiple (IE). Instantan

4-40 BE1-87T Installation 9171300990 Rev V HIGH TERTIARY LOW )50)(0.6()40)(8.16(=TI =2.24 )250)(5.2()200)(55.7(=TI =2.42 Step 21. S

9171300990 Rev V BE1-87T Installation 4-41 )42.2(423)36.10(353−++=S = 38.8 Because the maximum saturation factor SF for this ex

4-42 BE1-87T Installation 9171300990 Rev V Procedure Two Refer to Figure 4-37 for a one-line drawing of this example. Data Figure 4-38. Two Winding

9171300990 Rev V BE1-87T Installation 4-43 Step 2. Determine the CT secondary current (IS): HIGH LOW Step 3. Three-Phase Units Only: Adjust

4-44 BE1-87T Installation 9171300990 Rev V Step 7. Determine the Driving Input Tap (TI). If both relay currents are between 2.0 and 8.9 amperes,

9171300990 Rev V BE1-87T Installation 4-45 Verify CT Performance NOTE This procedure uses the ANSI accuracy class method. See Appendix A, Setting N

4-46 BE1-87T Installation 9171300990 Rev V Neglecting RR, use RW and RL from Figure 4-37: HIGH* LOW VBG==19.5(0.7)13.6 V VBG== 70(2(0.7))98.0 V

9171300990 Rev V BE1-87T Installation 4-47 • For delta-connected CTs, or with ∆1 or ∆2 jumpers on Analog Board #2, shown in Figure 2-4, (and based

9171300990 Rev V BE1-87T Introduction vii CONTENTS SECTION 1 • GENERAL INFORMATION ...

4-48 BE1-87T Installation 9171300990 Rev V HIGH LOW Step 21. Select the restrained slope setting. The recommended restrained slope setting (S)

9171300990 Rev V BE1-87T Installation 4-49 Checking the Relay Settings and System Inputs Steps 1 and 2 check that the current inputs from the power

4-50 BE1-87T Installation 9171300990 Rev V Table 4-4. Input Conditions For Non-Trip Three-Phase Sensing 30° Phase Shift Compensation Jumper Settings

9171300990 Rev V BE1-87T Installation 4-51 Test Plug Test plugs (Basler p/n 10095) provide a quick, easy method of testing relays without removing t

4-52 BE1-87T Installation 9171300990 Rev V

9171300990 Rev V BE1-87T Test Procedures i SECTION 5 • TEST PROCEDURES TABLE OF CONTENTS SECTION 5 • TEST PROCEDURES ...

ii BE1-87T Test Procedures 9171300990 Rev V

9171300990 Rev V BE1-87T Test Procedures 5-1 SECTION 5 • TEST PROCEDURES Overview BE1-87T Transformer Differential Relays are calibrated and tested

5-2 BE1-87T Test Procedures 9171300990 Rev V Restrained Pickup Testing Examples Increasing One Input from Balance The formula to determine the unbal

9171300990 Rev V BE1-87T Test Procedures 5-3 Example One: Assume: tap tap slope1 22 38 15%= = =, . , Inputs I A puITpuI A puITpu: ( ). ( )..