Basler BE1-87T User manual

INSTRUCTION MANUAL
FOR
TRANSFORMER DIFFERENTIAL RELAY
BE1-87T
P0052-22
Serial No. XXXXXXXXXXXX
Style No. D2E A1J D1S0F
R
PUSH TO
ENERGIZE
OUTPUT
RU
TRANSFORMER DIFFERENTIAL
BE1-87T
Publication: 9171300990
Revision: R 09/07
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9171300990 Rev R BE1-87T Introduction i
INTRODUCTION
This instruction manual provides information about the operation and installation of the BE1-87T
Transformer Differential relay. To accomplish this, the following information is provided:
•General Information and Specifications
•Controls and Indicators
•Functional Description
•Installation
•Test Procedures
WARNING!
To avoid personal injury or equipment damage, only qualified personnel should
perform the procedures in this manual.
NOTE
Be sure that the relay is hard-wired to earth ground with no smaller than 12 AWG
copper wire attached to the ground terminal on the rear of the unit case. When
the relay is configured in a system with other devices, it is recommended to use a
separate lead to the ground bus from each unit.
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ii BE1-87T Introduction 9171300990 Rev R
First Printing: June 1990
Printed in USA
© 1990-1997, 1999-2000, 2003, 2005, 2007 Basler Electric, Highland Illinois 62249 USA
All Rights Reserved
September 2007
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 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.
BASLER ELECTRIC
ROUTE 143, BOX 269
HIGHLAND IL 62249 USA
http://www.basler.com, [email protected]
PHONE [phone] FAX [phone]
CONFIDENTIAL INFORMATION
of Basler Electric, Highland Illinois, USA. It is loaned for confidential use, subject
to return on request, and with the mutual understanding that it will not be used in
any manner detrimental to the interest of Basler Electric.
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9171300990 Rev R BE1-87T Introduction iii
REVISION HISTORY
The following information provides a historical summary of the changes made to the BE1-87T instruction
manual (9171300990). Revisions are listed in reverse chronological order.
Manual
Revision and Date Change
R, 09/07 •Replaced magnetic type targets with electronic type targets.
•Updated power supply burden data and output contact ratings.
•Updated front panel illustrations to show laser graphics.
•Moved content of Section 6, Maintenance to Section 4, Installation.
•Added GOST-R certification to Section 1, General Information.
Q, 10/05 •In Section 1, General Information, Specifications, corrected values for
Maximum Current per Input for 1 Ampere CT Units.
•In Section 5, Test Procedures, corrected values inside CAUTION box
for 1 AMP CT on page 5-14.
P, 05/03 •Added a thumbscrew to the figure on the manual front cover.
•Added “not all styles” to the Power Supply Output heading on page 3-
4 as well as added “NOTE” and a text box around the second last
paragraph on page 3-4.
•Added the new thumbscrew to Figure 4-1 and changed the height
dimensions in Figure 4-2.
•Clarified the terminal numbers on Figure 4-6b.
•Added a shorting bar between terminals 6 & 7 in Figure 4-11.
•Added a shorting bar and normally open contact and normally closed
contact effecting terminals 1, 2, & 5 in Figure 4-12.
•Step 13 was corrected on pages 4-31 and 4-39 to include Rwin the
formulas.
•Values were changed to Table 5-4 under Option 1-0 for Unrestrained
Trip.
N, 09/00 •Corrected Table 1-3 to show power supply ranges.
•Changed instruction manual front cover, Figures 4-1, 4-3, and 4-5 to
show new unit case covers.
•Changed Figure 4-32 per markup.
M, 04/99 •Table 3-1 changed mid range nominal volt 125 Vac to 120 Vac.
•Corrected Figures 4-24, 4-31a, and A-3
•Corrected page 4-38, Step 10; added note to page 4-39, Step 13, and
corrected Steps 14 and 16.
•Page A-2, changed 3-Phase fault ratio current to 3-phase fault
current.
•Page A-3, corrected formulas for Figure A-3.
•Under Section 4, Procedure One, Verify CT Performance, changed
the procedure to the ANSI accuracy class method. This forced
changes in the following steps: 12, 13, 14, 16, 18, 20, and 21.
•Under Section 4, Procedure Two, Verify CT Performance, changed
the procedure to the ANSI accuracy class method. This forced
changes in the following steps: 12, 13, 14, and 16.
•Added ECO revision information to Table 8-1.
•Added Setting Note 7 (ANSI Accuracy Class Method) to Appendix A.
L, 05/97 •To delete the part number from the front cover of the manual.
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iv BE1-87T Introduction 9171300990 Rev R
Manual
Revision and Date Change
K, 03/97 •Deleted all references to Service Manual 9171300620.
•Changed the Title of Section 2 from “Controls and Indicators” to
“Human-Machine Interface”.
•Replaced the Power Supply Options paragraphs with a new Power
Supply paragraph explaining the new power supply design.
•Deleted Figure 3-2 and added Table 3-1, Wide Range Power Supply
Voltage Ranges.
•Changed Power Supply Status Output for Type G power supply on
the formerly page 3-6 (now page 3-4) from terminals 9 and 20 to
terminals 9 and 19.
•Added information to Section 4 to help the user understand the
procedures better.
•Deleted all NOTES FOR USERS OF SENSING INPUT TYPE F
RELAYS and added Section 7, Difference Data.
•Changed previous Section 7, Manual Change Information, to Section
8.
•Added an Appendix A to clarify the setting procedures.
•Added an index to help the user find information easier.
•Changed the format of the manual.
J, 01/96 •Deleted “Difference Data” (formerly Section 7) and included notes for
users of Type F relays.
•Moved all information regarding relay settings and checking relay
setting from Section 5, Testing and Setting, to Section 4, Installation.
Section 5 now contains information on test procedures.
•Combined 50 and 60 Hz Verification Tests.
•Various editorial changes.
•Reformatted instruction manual as Windows Help file for electronic
documentation.
I, 01/95 •Added outline (box) to Figure 5-8 to highlight the figure.
•Page 5-42, Step 5, changed, “should be less than 4.45” to, “must be
less than 4.45”.
•Added note to page 5-43, Step 10 and corrected the formula in Step
10.
•Page 5-45, Step 18, corrected formula and high side results; and
Step 19, changed last sentence from H (13 x tap) to S (21 x tap).
•Page 5-46, Steps 20 and 21, corrected figure references.
H, 12/94 •Page 1-6, changed Specification for Restrained Output, Pickup
Accuracy.
•Changed Section 5, Testing and Setting, Verification Tests (all
models): Steps 1, 4, 5, and 8; and Table 5-4.
•Page 5-50, Jumper Positions Wye-Delta 1, Step 3: Corrected Input 2
terminal identifications.
•Page 5-51, Jumper Positions Delta2-Delta2, Step 2: Corrected
verification statement.
G, 09/94 •Changed all sections to reflect new Option 1-1.
•Added to Section 5 four examples for testing relays to clarify test
procedures.
•Added to Section 5 one procedure for setting relays.
•Corrected typographical and illustration errors.
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9171300990 Rev R BE1-87T Introduction v
Manual
Revision and Date Change
F, 03/93 •Changed formula pages 5-4, 5-10, 5-16, and 5-22 from I = the square
root of K over t, to I = K over the square root of t.
E, 01/93 •Manual was revised to incorporate a revision in the relay that made
sensing input type F obsolete and included the 1 A, 60 hertz and 5 A,
50 hertz model relays.
•Section 5, Test Setup, diagrams were changed to clarify relay
connections.
•Added three relay Internal Connection diagrams.
•Changed unrestrained maximum time to trip, reference old Tables 5-4
and 5-8 (new Tables 5-4, 5-8, 5-12, and 5-16).
•Renamed Section 7, Manual Change Information to Section 8,
Manual Change Information and added new Section 7, Difference
Data to support BE1-87T relays with Sensing Input Type F.
D, 06/92 •Manual was revised to include the 1 A, 50 Hz model relay and
reformatted to a new Instruction Manual style.
•Additional connection diagrams were included in Section 4 and test
plug information was added to Section 6.
•Minor typographical errors were also corrected.
C, 03/91 •Table 5-1 was expanded and Figure 5-4 Test Setup illustration was
added.
•Miscellaneous editing.
B, 03/91 •Manual (with the exception of Section 2) was rewritten for ease of
use.
A, 06/90 •Figure 3-1 (Functional Block Diagram) corrected.
•Formula in caution note (formerly on p. 4-17, now on p. 5-2)
corrected.
•Miscellaneous editing.
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9171300990 Rev R BE1-87T Introduction vii
CONTENTS
SECTION 1 •GENERAL INFORMATION................................................................................................ 1-1
INTRODUCTION................................................................................................................................. 1-1
DESCRIPTION.................................................................................................................................... 1-1
APPLICATION .................................................................................................................................... 1-2
Single-Phase ................................................................................................................................ 1-2
Three-Phase................................................................................................................................. 1-2
Percentage Restraint.................................................................................................................... 1-2
Second-Harmonic Restraint ......................................................................................................... 1-2
Fifth-Harmonic Restraint............................................................................................................... 1-3
Unrestrained Trip.......................................................................................................................... 1-3
OPTIONS............................................................................................................................................ 1-3
Push-To-Energize Output Pushbuttons........................................................................................ 1-3
Auxiliary Output Contacts............................................................................................................. 1-3
Power Supply................................................................................................................................ 1-3
MODEL AND STYLE NUMBER.......................................................................................................... 1-4
Style Number Example................................................................................................................. 1-4
SPECIFICATIONS.............................................................................................................................. 1-5
Current Sensing Inputs................................................................................................................. 1-5
Current Sensing Burden............................................................................................................... 1-5
Tap Setting Control (Scaling) ....................................................................................................... 1-5
Restrained Output ........................................................................................................................ 1-5
Front Panel Setting %................................................................................................................... 1-6
Unrestrained Output..................................................................................................................... 1-6
Outputs......................................................................................................................................... 1-7
Target Indicators........................................................................................................................... 1-7
Harmonic Attenuation................................................................................................................... 1-7
Timing........................................................................................................................................... 1-7
Isolation ........................................................................................................................................ 1-9
Power Supply................................................................................................................................ 1-9
Surge Withstand Capability.......................................................................................................... 1-9
Radio Frequency Interference (RFI)............................................................................................. 1-9
UL Recognition............................................................................................................................. 1-9
GOST-R Certification.................................................................................................................... 1-9
Patent ........................................................................................................................................... 1-9
Shock............................................................................................................................................ 1-9
Vibration........................................................................................................................................ 1-9
Operating Temperature.............................................................................................................. 1-10
Storage Temperature ................................................................................................................. 1-10
Weight......................................................................................................................................... 1-10
Case Size ................................................................................................................................... 1-10
SECTION 2 •CONTROLS AND INDICATORS ....................................................................................... 2-1
LOCATION OF CONTROLS AND INDICATORS............................................................................... 2-1
SECTION 3 •FUNCTIONAL DESCRIPTION........................................................................................... 3-1
GENERAL........................................................................................................................................... 3-1
DESCRIPTION.................................................................................................................................... 3-1
Current Transformers................................................................................................................... 3-1
Scaling.......................................................................................................................................... 3-1
Summing....................................................................................................................................... 3-1
30°Internal Phase Shift (Three-Phase Relays ONLY) ................................................................ 3-1
Restrained Trip Output................................................................................................................. 3-3
Unrestrained Trip Output.............................................................................................................. 3-3
Auxiliary Relay Option.................................................................................................................. 3-4
Power Supply................................................................................................................................ 3-4
Power Supply Status Output (Optional) ....................................................................................... 3-4
Target Indicators (Optional).......................................................................................................... 3-4
% of Trip ....................................................................................................................................... 3-5
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viii BE1-87T Introduction 9171300990 Rev R
SECTION 4 •INSTALLATION.................................................................................................................. 4-1
GENERAL........................................................................................................................................... 4-1
RELAY OPERATING PRECAUTIONS............................................................................................... 4-1
MOUNTING......................................................................................................................................... 4-1
DIELECTRIC TEST............................................................................................................................. 4-9
CONNECTIONS.................................................................................................................................. 4-9
RELAY DISASSEMBLY.................................................................................................................... 4-17
Precautions................................................................................................................................. 4-17
Circuit Board Removal Procedure.............................................................................................. 4-17
DISABLING UNUSED INPUTS......................................................................................................... 4-18
Single-Phase Units..................................................................................................................... 4-20
Three-Phase Units...................................................................................................................... 4-20
SENSING CONNECTION DIAGRAMS ............................................................................................ 4-20
Single-Phase Input Sensing Connections.................................................................................. 4-20
Three-Phase Input Sensing Connections................................................................................... 4-20
SETTING THE BE1-87T................................................................................................................... 4-33
Method........................................................................................................................................ 4-33
Procedure One ........................................................................................................................... 4-33
Procedure Two ........................................................................................................................... 4-42
CHECKING THE RELAY SETTINGS AND SYSTEM INPUTS........................................................ 4-49
MAINTENANCE................................................................................................................................ 4-50
STORAGE......................................................................................................................................... 4-50
TEST PLUG ...................................................................................................................................... 4-50
SECTION 5 •TEST PROCEDURES ........................................................................................................ 5-1
OVERVIEW......................................................................................................................................... 5-1
EQUIPMENT REQUIRED................................................................................................................... 5-1
Verification Tests.......................................................................................................................... 5-1
RESTRAINED PICKUP TESTING EXAMPLES ................................................................................. 5-2
Increasing One Input from Balance.............................................................................................. 5-2
Decreasing One Input from Balance ............................................................................................ 5-5
TEST SETUP DIAGRAMS.................................................................................................................. 5-7
VERIFICATION TESTS: 5 AMP CT, 50 OR 60 HZ UNITS ................................................................ 5-9
Restrained Pickup Level Verification............................................................................................ 5-9
Input (or Tap) Switch Verification ............................................................................................... 5-10
Unrestrained Pickup Verification ................................................................................................ 5-11
Second-Harmonic Restraint Verification .................................................................................... 5-11
Fifth-Harmonic Restraint Verification.......................................................................................... 5-12
Response Time Verification........................................................................................................ 5-13
VERIFICATION TESTS: 1 AMP CT, 50 OR 60 HZ UNITS .............................................................. 5-14
Restrained Pickup Level Verification.......................................................................................... 5-14
Input (or Tap) Switch Verification ............................................................................................... 5-15
Unrestrained Pickup Verification ................................................................................................ 5-16
Second-Harmonic Restraint Verification .................................................................................... 5-16
Fifth-Harmonic Restraint Verification.......................................................................................... 5-17
Response Time Verification........................................................................................................ 5-18
OPERATIONAL TEST PROCEDURES............................................................................................ 5-19
Restrained Pickup....................................................................................................................... 5-19
Unrestrained Pickup ................................................................................................................... 5-19
Second-Harmonic Inhibit............................................................................................................ 5-19
Fifth-Harmonic Inhibit ................................................................................................................. 5-20
TESTING THREE-PHASE UNITS WITHOUT CHANGING JUMPERS ........................................... 5-20
Jumper Positions Wye-Wye ....................................................................................................... 5-21
Jumper Positions Wye-Delta1.................................................................................................... 5-21
Jumper Positions Wye-Delta2.................................................................................................... 5-22
Jumper Positions Delta1-Delta1................................................................................................. 5-22
Jumper Positions Delta2-Delta2................................................................................................. 5-23
Jumper Positions Delta1-Delta2................................................................................................. 5-23
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