Separate Synchronising Relay - Deif Multi-line 2 Designers Reference Handbook

AGC
The breaker sequence adjustments are the following:
Menu Description
2121 Breaker selection
2122 Timer
2123 Excitation start level
'Close before excitation' failure
If the starting of the gen-set does not succeed, then the alarm menu 2130 'Excit failure' will
occur, and the selected fail class will be executed.
When the AGC gives the synchronising command, then the relays on terminal 17/18/19
(generator breaker) and terminal 11/12/13 (mains breaker) will activate, and the breaker must
close when this relay output is activated.
This default function can be modified using a digital input and extra relay outputs depending on
the required function. The relay selection is made in the menu 2100, and the input is selected in
the input settings in the utility software.
This function is option dependent. Option M14 or M12 is required. Option M14
includes relays 1-4 and option M12 includes 13 digital inputs and relays 5-8.
The table below describes the possibilities.
Relay Relay selected
Input Two relays used
Not used Synchronising:
The breaker ON relay and the sync.
relay activate at the same time when
synchronising is OK.
Blackout closing:
The breaker ON relay and the sync.
relay activate at the same time when
the voltage and frequency are OK.
Low Synchronising:
Not possible.
Blackout closing:
The breaker ON relay and the sync.
relay activate at the same time when
the voltage and frequency are OK.
DEIF A/S

Separate synchronising relay

Designer's Reference Handbook
Comment
Select breakers to close: GB or
GB + TB.
The timer defines the period
from the excitation is started
and until the regulation is
activated. The alarms set to
'RUN' will be activated after
this timer has expired.
The setting defines at what
level of RPM the excitation is
started.
Relay not selected
One relay used
Synchronising:
The breaker ON relay activates when
synchronising is OK.
Blackout closing:
The breaker ON relay activates when
the voltage and frequency are OK.
DEFAULT selection
Synchronising:
Not possible.
Blackout closing:
The breaker ON relay activates when
the voltage and frequency are OK.
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