Technical Documentation
KSR-Z – Capacitor-Bank Protection Relay
Rev. 04
Page
8
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36
2.2.7 Output contacts
KSR-Z relays are available with two types of output contacts
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two change over contacts
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four normally open contacts
Output contacts are user programmable to operate from protection characteristic, DTL for different
protection functions and relay self-monitoring feature (watchdog). These output contacts are shown
in de-energized state in the drawing under section 5.
Under normal mode of operation, output contacts remain energized for the adjusted time delay or
trip characteristic for T-OFF or for the duration of fault detected by the protection function.
Alternatively, outputs can be programmed to operate as latching contacts, if required. It is also
possible to invert the operation of the output contacts.
The factory settings of the relays are shown on the table under point 3.3.4