Synchronising Controller - Deif GPC-3 Designers Reference Handbook

GPC-3 DRH 4189340587 UK
Static synchronisation types
It is possible to select between three different functions of the static synchronisation, dependent on applica-
tion requirements.
Breaker Normal functionality; a breaker ON pulse is activated when the requirements for synchroni-
sync.: sation are fulfilled.
Sync. This function makes the unit act solely as a check synchroniser, for example, no regulation
check: of frequency and/or voltage will be performed. A constant GB ON command is activated as
long as the requirements for synchronisation are fulfilled. The "GB close failure" alarm is not
active when this function is selected. This function does not require any hardware for regula-
tion.
Infinite The generator is kept in synchronism with the busbar, and no breaker command is used.
sync.:
Settings
The following settings must be adjusted, if the static synchronisation is selected:
Setting Description
2031 Maximum df The maximum allowed frequency difference between the
busbar/mains and the generator
2032 Maximum dU The maximum allowed voltage difference between the bus-
bar/mains and the generator
2033 Closing win- The size of the window where the synchronisation pulse
dow can be released
2034 Static sync. Minimum time inside the phase window before sending a
close command
2035 Static type Selection of synchronisation type

7.4 Synchronising controller

A dedicated controller is used whenever synchronising is activated. After a successful synchronisation, the
frequency synchronisation controller is deactivated and the relevant controller is activated, for example the
load sharing controller.
The unit provides separate settings for dynamic, static and asynchronous synchronisation which are used ac-
cording to the table below.
Sync. type/Interface type
Dynamic
Static
Asynchronous
DEIF A/S
Relay
2050 f sync ctrl rel
2050 f sync ctrl rel
2070 Phase ctrl rel.
2090 Async. sync.
Synchronisation
Comment
+/- value
+/- value, related to the
nominal generator volt-
age
+/- value
See separate descrip-
tion
Analogue/PWM
2040 f sync. control
2040 f sync. control
2060 Phase control
2080 RPM sync. ctrl
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