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What is the significance of "force flag" parameter in VAMP 255/245/230 relays.

Published date: 08 May 2019

There is a "Force flag" parameter which, when activated, allows forcing the status of any protection stage to be "start" or "trip" for a half second. By using this forcing feature any current or voltage injection to the device is not necessary to check the output matrix configuration, to check the wiring from the output relays to the circuit breaker and also to check that communication protocols are correctly transferring event information to a SCADA system.
After testing the force flag will automatically reset 5-minute after the last local panel push button activity.
The force flag also enables forcing of the output relays and forcing the optional mA outputs.

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