ComAp InteliMains NT IM-NT, Reference Manual

Page: 411 / 437

InteliMains
NT
, SW version 3.2.0
InteliMains-NT-MCB-MGCB-3.2.0-Reference Guide.pdf,
©ComAp – April 2015
411
14.2.1.68 Binary output: ReverseSynchro
Related FW standard v3.1.0
Description The output is closed during reverse synchronizing (synchronizing of loaded
gen-set group back to the mains) and opens when the output
MCB status is
activated (= MCB was closed).
N
OTE
:
The output can be used for external synchronizing module control.
14.2.1.69 Binary output: In synchronism
Related FW standard v3.1.0
Description
This output is closed during synchronization when all synchro conditions
have been fulfilled. The output is opened either when:

the synchro conditions are lost or

the corresponding breaker has been closed or

the sychronizing was interrupted or timed out.
Synchro conditions are following:

Slip frequency is lower than 0.25 Hz

Phase shift between mains and bus (BusLeft and BusRight - in BTB
application) voltage must be within range of ±
Phase window for
period longer than Dwell time .

Voltage difference between mains and bus (BusLeft and BusRight -
in BTB application) voltage (in all phases) must be lower or equal to
Voltage window for period longer than Dwell time .
The output is intended for manual synchronization. Automatic closing of
MCB/MGCB
must be disabled for this case. Use the input MGCB disable or
MCB disable .
14.2.1.70 Binary output: Ready for Load
Related FW standard v3.1.0
Description MGCB application only!
The output closes when the gen-set group is running (Sys start/stop is active)
and output SystReady is active (i.e. sufficient number of gen-sets in Power
management is available).
The MGCB may be already closed or is available to closing.