Basler BE1-CDS240 User manual

INSTRUCTION MANUAL
FOR
CURRENT DIFFERENTIAL SYSTEM
BE1-CDS240
Publication: 9365200990
Revision: F 12/08

INTRODUCTION
This instruction manual provides information about the operation and installation of the BE1-CDS240
Current Differential System. To accomplish this, the following information is provided:
General information, specifications, and a Quick Start guide.
Functional description and setting parameters for the input/output functions, protection and control
functions, metering functions, and reporting and alarm functions.
BESTlogic programmable logic design and programming.
Documentation of the preprogrammed logic schemes and application tips.
Description of security and user interface setup including ASCII communication and the human-
machine interface (HMI).
Installation procedures, dimension drawings, and connection diagrams.
Description of the front panel HMI and the ASCII command interface with write access security
procedures.
A summary of setting, metering, reporting, control, and miscellaneous commands.
Testing and maintenance procedures.
Appendices contain time overcurrent characteristic curves, overexcitation (24) inverse time curves,
terminal communication, and settings calculations assistance.
Optional instruction manuals for the BE1-CDS240 include:
Distributed Network Protocol (DNP) 3.0 (9365200991)
Modbus(9365200992).
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.
9365200990 Rev F BE1-CDS240 Introduction i

First Printing: March 2003
Printed in USA
© 2008 Basler Electric, Highland Illinois 62249 USA
All Rights Reserved
December 2008
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.
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]
ii BE1-CDS240 Introduction 9365200990 Rev F

9365200990 Rev F BE1-CDS240 Introduction iii
REVISION HISTORY
The following information provides a historical summary of the changes made to the BE1-CDS240
hardware, firmware, and software. The corresponding revisions made to this instruction manual
(9365200990) are also summarized. Revisions are listed in reverse chronological order.
BESTCOMS Software
Version and Date Change
2.05.00, 12/08 Added Power Supply Option 3 (24 Vdc) on Style Number screen on
General Info tab.
Added Power Flow Polarity setting under VTP Setup on Power
System / VT Setup tab.
2.04.07, 04/08 Enhanced BESTCOMS error reporting.
2.04.06, 03/08 Added the ability to turn off delta compensation for Yy0 connections.
Improved Settings Compare function.
2.04.05, 11/06 Added 59X (auxiliary) function.
Added IEC transformer setup.
2.03.00, 03/04 Enhanced overexcitation (24) function.
2.02.00, 09/03 Initial release
Firmware
Version and Date Change
App: 1.04.00, 12/08
DSP: 1.03.02, 12/08 Added Power Flow Polarity setting for VTP Setup.
App: 1.03.02, 03/08
DSP: 1.03.01, 11/06 Added alternate DST (Daylight Saving Time) settings.
Increased immunity to noise on IRIG input.
Improved breaker fail targeting.
Improved x62 timer when changing setting groups.
App: 1.03.00, 09/06
DSP: 1.03.01, 11/06 Added 59X (auxiliary) element.
Added 180compensation parameter for the 87T function.
Enhanced 60FL functionality.
App: 1.02.01, 02/04
DSP: 1.02.01, 01/04 Enhanced overexcitation (24) function.
Added virtual restraint feature.
Relocated logic bits for 62, 162, 262, and 362.
Added separate logic bits for 2nd Harmonic A, B, and C.
Added separate logic bits for 5th Harmonic A, B, and C.
App: 1.01.05, 09/03
DSP: 1.01.00, 06/03 Initial release
Hardware
Version and Date Change
V, 12/08 Release firmware version 1.04.00 and BESTCOMS version 2.05.00.
U, 09/08 EEPROM replacement.
T, 04/08 Release BESTCOMS version 2.04.07.
S, 04/08 Improved response time of contact sense inputs.
R, 03/08 Release firmware version 1.03.02 and BESTCOMS version 2.04.06.
Q, 10/06 Release firmware version 1.03.00 and BESTCOMS version 2.04.05.

iv BE1-CDS240 Introduction 9365200990 Rev F
Hardware
Version and Date Change
N, 08/05 Release firmware version 1.02.00.
M, 11/04 Improved overlay to fit front panel.
L, 03/04 Minor changes to enhance production efficiency.
K, 02/04 Increased the size of the insertion/extraction lever in order to allow
the relay to be inserted/removed from the case more easily.
J, 12/03 Changed from surface mount to through hole connectors on I/O
board.
H, 10/03 Relocated slots on top cover.
G, 10/03 Minor changes to enhance production efficiency.
F, 10/03 Initial release
Manual
Revision and Date Change
F, 12/08 Added information to support Power Supply Option 3 (24 Vdc).
Added Power Flow Polarity setting for VTP Setup in Section 3.
Updated Contact Sensing Input ranges and burden data for re-
designed contact sense circuit.
E, 03/08 Added manual part number and revision to footers.
Added Settings Compare to the end of Section 6.
Added alternate DST (Daylight Saving Time) settings.
Updated terminal numbering in Figures 13-15, 13-16, 13-17, and 13-
18.
D, 10/06 Added 59X (auxiliary) feature.
Added IEC Transformer Setup to Section 3.
Updated all BESTCOMS screen shots.
Updated Table 6-3, Logic Variable Status Report Format, with new
logic bits for 59XPU and 59XT.
C, 03/04 Enhanced the 24 feature.
Added virtual restraint.
Minor text edits.
B, 10/03 Initial release

9365200990 Rev F BE1-CDS240 Introduction v
CONTENTS
SECTION 1 GENERAL INFORMATION ................................................................................................ 1-1
SECTION 2 QUICK START....................................................................................................................2-1
SECTION 3 INPUT AND OUTPUT FUNCTIONS................................................................................... 3-1
SECTION 4 PROTECTION AND CONTROL......................................................................................... 4-1
SECTION 5 METERING......................................................................................................................... 5-1
SECTION 6 REPORTING AND ALARM FUNCTIONS.......................................................................... 6-1
SECTION 7 BESTlogic PROGRAMMABLE LOGIC............................................................................... 7-1
SECTION 8 APPLICATION....................................................................................................................8-1
SECTION 9 SECURITY.......................................................................................................................... 9-1
SECTION 10 HUMAN-MACHINE INTERFACE ................................................................................... 10-1
SECTION 11 ASCII COMMAND INTERFACE..................................................................................... 11-1
SECTION 12 INSTALLATION .............................................................................................................. 12-1
SECTION 13 TESTING AND MAINTENANCE .................................................................................... 13-1
SECTION 14 BESTCOMS SOFTWARE.............................................................................................. 14-1
APPENDIX A TIME OVERCURRENT CHARACTERISTIC CURVES...................................................A-1
APPENDIX B OVEREXCITATION (24) INVERSE TIME CURVES .......................................................B-1
APPENDIX C TERMINAL COMMUNICATION.......................................................................................C-1
APPENDIX D SETTINGS CALCULATIONS ..........................................................................................D-1

vi BE1-CDS240 Introduction 9365200990 Rev F
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9365200990 Rev F BE1-CDS240 General Information i
SECTION 1 GENERAL INFORMATION
TABLE OF CONTENTS
SECTION 1 GENERAL INFORMATION ................................................................................................ 1-1
INTRODUCTION.................................................................................................................................... 1-1
FEATURES............................................................................................................................................ 1-1
I/O Functions ...................................................................................................................................... 1-2
Protection and Control Functions....................................................................................................... 1-3
Metering Functions............................................................................................................................. 1-4
Reporting and Alarm Functions.......................................................................................................... 1-4
BESTlogic Programmable Logic ........................................................................................................ 1-6
Security............................................................................................................................................... 1-6
Human-Machine Interface .................................................................................................................. 1-6
ASCII Command Interface ................................................................................................................. 1-6
Installation .......................................................................................................................................... 1-7
Testing and Maintenance ................................................................................................................... 1-7
BESTCOMS Software ........................................................................................................................ 1-7
PRIMARY APPLICATIONS ................................................................................................................... 1-7
DIFFERENTIAL PROTECTION APPLICATION CONSIDERATIONS .................................................. 1-8
Problem 1: False Differential Current Due to Poor CT Performance................................................. 1-8
Problem 2: Measured Current Magnitude Mismatch ......................................................................... 1-9
Problem 3: Mismatch Caused by Load Tap Changers ...................................................................... 1-9
Problem 4: Phase Angle Shift .......................................................................................................... 1-10
Problem 5: Zero-Sequence Current Sources Within the Zone of Protection ................................... 1-13
Problem 6: Transformer Energization Inrush and Overexcitation .................................................... 1-15
Problem 7: Digital Measurement Errors ........................................................................................... 1-15
MODEL AND STYLE NUMBER DESCRIPTION................................................................................. 1-16
OPERATIONAL SPECIFICATIONS .................................................................................................... 1-17
Metered Current Values and Accuracy ............................................................................................ 1-17
Metered Voltage Values and Accuracy ............................................................................................ 1-17
Metered Frequency Values and Accuracy ....................................................................................... 1-17
Calculated Values and Accuracy ..................................................................................................... 1-18
Energy Data Reporting..................................................................................................................... 1-18
Real-Time Clock............................................................................................................................... 1-18
87 Differential Functions................................................................................................................... 1-18
87ND Neutral Differential Function .................................................................................................. 1-20
Instantaneous Overcurrent Functions .............................................................................................. 1-20
Time Overcurrent Functions............................................................................................................. 1-21
Time Current Characteristic Curves................................................................................................. 1-21
Volts/Hz (24)..................................................................................................................................... 1-21
Phase Undervoltage Function (27P/127P)....................................................................................... 1-22
Negative-Sequence Voltage Protection (47).................................................................................... 1-22
Phase Overvoltage Function (59P/159P)......................................................................................... 1-23
Auxiliary Overvoltage Function 3V0 (59X) ....................................................................................... 1-23
Frequency (81, 181, 281, 381, 481, 581)......................................................................................... 1-23
Breaker Failure (50BF, 150BF, 250BF, 350BF)............................................................................... 1-23
General Purpose Timers (62, 162, 262, 362)................................................................................... 1-24
VT Fuse Loss Monitoring (60FL)...................................................................................................... 1-24
Automatic Setting Group Characteristics ......................................................................................... 1-24
BESTlogic......................................................................................................................................... 1-24
GENERAL SPECIFICATIONS............................................................................................................. 1-24
AC Current Inputs............................................................................................................................. 1-24
Analog to Digital Converter .............................................................................................................. 1-25
Power Supply ................................................................................................................................... 1-25
Output Contacts ............................................................................................................................... 1-25
Control Inputs ................................................................................................................................... 1-25
IRIG .................................................................................................................................................. 1-26
Contact Inputs .................................................................................................................................. 1-26

ii BE1-CDS240 General Information 9365200990 Rev F
Communication Ports ....................................................................................................................... 1-26
Display.............................................................................................................................................. 1-26
Isolation ............................................................................................................................................ 1-26
Surge Withstand Capability .............................................................................................................. 1-26
Radio Frequency Interference (RFI)................................................................................................. 1-27
Electrostatic Discharge (ESD).......................................................................................................... 1-27
Shock................................................................................................................................................ 1-27
Vibration ........................................................................................................................................... 1-27
Environment ..................................................................................................................................... 1-27
UL Recognition ................................................................................................................................. 1-27
C.S.A. Certification ........................................................................................................................... 1-27
GOST-R Certification ....................................................................................................................... 1-27
Patent ............................................................................................................................................... 1-27
Physical ............................................................................................................................................ 1-27
Figures
Figure 1-1. Restrained Differential Characteristic ..................................................................................... 1-8
Figure 1-2. Tap Adjust for Mismatch ......................................................................................................... 1-9
Figure 1-3. Currents on Different Voltage Bases ...................................................................................... 1-9
Figure 1-4. Delta/Wye Transformer Circuits............................................................................................ 1-11
Figure 1-5. Three-Phase Connections, Delta-Wye Configuration, CT Compensation............................ 1-12
Figure 1-6. Three-Phase Connections, Delta-Wye Configuration, Internal Phase Compensation ......... 1-13
Figure 1-7. Traditional Zero-Sequence Trap for Application with Ground Banks ................................... 1-14
Figure 1-8. Style Number Identification Chart ......................................................................................... 1-17
Figure 1-9. Typical 87 Response Characteristic Curves ......................................................................... 1-19
Tables
Table 1-1. Control Input Burden .............................................................................................................. 1-26
Equations
Equation 1-1. Time to Trip ....................................................................................................................... 1-22
Equation 1-2. Time to Reset.................................................................................................................... 1-22