Reference Manual
Capacitor Bank Protect. Relay KSR1
Rev. 10
2018-09
15
4.2.2.3
Alarm menu
Trip active
When exceeding the adjusted threshold for trip, the trip relays switches and the message
blinks on the display.
An exceeding of the trip threshold is ignored.
Store trip in “Alarm buffer”
Trips are stored with the trigger value in the “Alarm buffer”.
Trips are not stored.
Alarm active
When exceeding the adjusted threshold for trip, the trip relays switches and the message
blinks on the display.
An exceeding of the trip threshold is ignored.
Store alarm in “Alarm buffer”
Alarms are stored with the trigger value in the “Alarm buffer”.
Alarms are not stored.
Drop off ratio (hysteresis)
It is possible to set the hysteresis to 50% – 100% of the adjusted thresholds for current and voltage. The “drop off ratio”
defines the threshold, which resets a trip or an alarm when the measured value falls below the adjusted threshold. For
example:
Case 1: Threshold for trip is 0.5 A and “drop of ratio” is 100% => trip is reset when the current falls below 0.5 A.
Case 2: Threshold for trip is 0.5 A and “drop of ratio” is 50% => trip is reset when the current falls below 0.25 A.
