ComAp InteliMains NT IM-NT, Справочное руководство

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InteliMains
NT
, SW version 3.2.0
InteliMains-NT-MCB-MGCB-3.2.0-Reference Guide.pdf,
©ComAp – April 2015
184
voltage disappears.

In MGCB application - if the controller is switched to
OFF mode while the gen-sets are running and there is
voltage on the bus, MGCB is opened and after AMF
settings:FwRet break MCB is closed (if there is Mains
voltage).

Binary output Sys start/stop is not active.
MAN

It is possible to close/open breakers manually under
supervision of IM-
NT controller which doesn’t allow to
close simultaneously breakers without synchronizing
(e.g. MCB and MGCB).

If the Mains fails, controller opens MCB if MCB opens
on is set to MAINSFAIL. After the Mains returns, MCB
stays opened. Otherwise MCB is controlled manually by
pressing MCB ON/OFF button or closing MCBButton
binary input.

In MGCB application
– if the Mains fails and group of
gen-sets is started and there is voltage on the bus, then
MGCB can be closed anytime by pressing MGCB
ON/OFF button.

Pressing of Start/Stop buttons closes/opens binary
output
Sys start/stop , i.e. cause start/stop of the gen-set
group.
AUT
Controller performs automatically sequences after Mains failure,
closing/opening MCB and MGCB, Peak shaving function,
closing of Sys start/stop binary output.

MCB is opened according to setpoint MCB opens on
after Mains failure or after the gen-sets are running.

MGCB is closed after the start of gen-set group as soon
as an appropriate load reserve is achieved (
Syst Res
OK binary output closed). If Mains fails and MCB is
opened then MGCB stays closed unless voltage on the
bus goes out of the limits.

Controller reacts on binary input Rem start/stop
– if this
input is closed, controller activates binary output Sys
start/stop in order to start gen-set group. In MGCB
application MGCB can be closed before the output
activation (see also setpoint
MGCBparalClose ).
TEST MCB application

Test on load - automatic start of the gen-sets (activation
of binary output Sys start/stop), load takeover and
opening of MCB is performed. If the Mains fails during
test, load is transferred to the gen-sets.
MGCB application

Engine Start Only - start of the gen/sets and their
synchronization on generator bus is performed. After
pressing MGCB button, it is synchronized and load is