Reference Manual
Capacitor Bank Protect. Relay KSR1
Rev. 10
2018-09
7
3.3 Outputs
The KSR1 has 4 relay outputs.
Trip
See 3.3.1
Alarm
See 3.3.2
Rel3
See 3.3.3
Status
See 3.3.4
3.3.1
Trip relay
The trip relay operates with the change-over contacts 11-12/14. The contacts 11-12 are normally closed and 11-14 are
normally open (no trip condition). In case, the trip trigger value (voltage or current) is exceeded for a longer period than
, the contacts 11-14 will close and 11-12 will open.
3.3.2
Alarm relay
The trip relay operates with the change-over contacts 21-22/24. The contacts 21-22 are normally closed and 21-24 are
normally open (no alarm condition). In case, the alarm trigger value (voltage or current) is exceeded for a longer period
than
, the contacts 21-24 will close and 21-22 will open.
3.3.3
Relay 3
The programmable relay can be set to work with alarm, trip or both. Under normal conditions (no trip, no alarm), the
contacts 31-32 are closed and 31-34 open. In an alarm / trip situation, the contacts 31-34 will close and 31-32 will open.
3.3.4
“Status” relay
The KSR1 supervises its internal modules and software. If an internal malfunction is detected, the relay will open the
contacts 41-44 and closes 41-42. Additional to the relay contact, the display shows “SyS” or “Prog”. The “status” relay
is a life contact, in case of missing power supply the contacts 41-42 closes and contact 41-44 opens.
