InteliMains
NT
, SW version 3.2.0
InteliMains-NT-MCB-MGCB-3.2.0-Reference Guide.pdf, ©ComAp – April 2015
for applications with break transfers (with synchronizing disabled).
11.2.8.8 Setpoint: ReturnTo mains
NOTE:
This setpoint is relevant only for MGCB application only!
The setpoint influences the behavior of the TEST mode. If mains fail occurs
during test (or is simulated using Test on load function), the controller opens
the MCB and switches the load to generators.
If the mains recovers, the generators stay running loaded
until TEST mode is abandoned, typically to AUT mode
where reverse synchronizing and soft unloading follows.
After the mains recovers, the generators will be reverse
synchronized back to the mains, softly unloaded and
remain running without load (MGCB opens) until TEST
mode is abandoned or another mains failure occurs.
11.2.8.9 Setpoint: Mains ret del
This setpoint adjusts delay after the mains return to the start of synchronizing
of MCB.
NOTE:
If synchronizing is disabled, a break transfer takes place after this delay
elapses.
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