Issue Date : 30.07.22, Rev. No : 01, Rev. Date : 08.09.2022
C-60, Wing-A, Phase-II, Noida-201 305, Dist: Gautam Budh Nagar (U.P) INDIA
Phone : +91-120-38748 00 / 01 Fax: +91-120-3874802
C&S Electric Ltd.
(Protection & Measurement Devices)
For further information, please contact:
1800 572 2012
Technical Question or After-sales Service
Customer Center Quick Response
Service, Excellent Technical Support
NOTE
The content in this QRG are not binding and is for general information. C&S reserves the right
to change the design, content or specification contained in this catalog without prior notice.
Problem
Cause of
Problem
Remedy
Wrong Measurement/
Display
Setting are not getting
saved & changed
Relay not getting ON
Wrong connection
Relay is in Trip/
Pickup state
Wrong connection
1) Check the VA burden
of primary CT. It should
closely match with the VA
burden of relay.
2) Check the wiring as
per terminology
3) Check S1-S2 of CT
Relay will not allow to
change any of its setting
unless it is in healthy
state.
There should not be any
pickup and last fault
should be acknowledged.
Press RESET for
acknowledgment of last
fault.
Check the polarity of Aux.
Supply as per the
connection diagram
Trouble Shooting Points
14
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