Datakom DKG-329 User Manual

DKG-329 User Manual V-12 (09.10.2012)
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When a No Break Transfer cycle is initiated, the unit checks all the above criteria to be
satisfied as long as the Synchronization Fail Timeout is not expired.
Normally with frequencies matching at +/- 2Hz and voltages matching at +/-10 volts an
uncontrolled No Break Transfer will be successfull.
If synchronization conditions are not met at the expiration of the Synchronization Fail
Timeout, then the unit reverts to a Transfer with Interruption.
If matching is found before the expiration of the Synchronization Fail Timeout, then both
contactors will be activated. If contactor auxiliary contacts are used, the other contactor will release
immediately. If contactor auxiliary contacts are not used, the other contactor will release after contactor
timeout.
The unit has a set of programmable parameters to define the No Break Transfer operation.
These parameters are:
Mains Voltage Low Limit (Electrical Parameters): Each of the mains phase voltages must be over
this limit.
Mains Voltage High Limit (Electrical Parameters): Each of the mains phase voltages must be below
this limit.
Mains Frequency Low Limit (Electrical Parameters): The mains frequency must be over this limit.
Mains Frequency High Limit (Electrical Parameters): The mains frequency must be below this limit.
Genset Voltage Low Limit (Electrical Parameters): Each of the genset phase voltages must be over
this limit.
Genset Voltage High Limit (Electrical Parameters): Each of the genset phase voltages must be
below this limit.
Low Frequency Shutdown (Engine Parameters): The genset frequency must be over this limit.
Low Frequency Warning (Engine Parameters): The genset frequency must be over this limit.
High Frequency Shutdown (Engine Parameters): The genset frequency must be below this limit.
High Frequency Warning (Engine Parameters): The genset frequency must be below this limit.
Genset Phase Order Enable(Electrical Parameters): If set , this parameter will enable the phase
order check for genset. The phase order check should be disabled only in single phase gensets.
Mains Phase Order Enable(Electrical Parameters): If set, this parameter will enable the phase order
check for mains.
No Break Transfer(Controller Config Parameters): This parameter enables/disables the No Break
Transfer feature.
Max Frequency Difference(Controller Config Parameters): This is the maximum difference between
mains and genset frequencies to enable a NO Break Transfer.
Max Voltage Difference(Controller Config Parameters): This is the maximum difference between the
mains_L1 and genset_L1 voltages to enable a NO Break Transfer.
Max Phase Difference(Controller Config Parameters): This is the maximum phase difference
between the mains_L1 and genset_L1 to enable a No Break Transfer.
Synchronization Fail Timeout (Controller Config Parameters): If the phase and voltage
synchronization is not successful before the expiration of this timer, then the unit terminates the No
Break Transfer and makes a Transfer with Interruption.
Contactor Timeout (Controller Config Parameters): This is the maximum time duration in which both
contactors are active in case of No Break Transfer.
Any digital input may be assigned as mains and genset contactor feedback input for faster transfer.
For this, “digital input function select parameter group” is used to select the function and “input
configuration parameter group” is used to configure digital inputs. The action parameter should be
set to 3 and “always active” option should be selected for both contactor feedback inputs. NC type
must be selected for mains contactor feedback input.(Pls refer to programming chapter for more
detailed explanation)

Datakom DKG-329 Specifications

General

Brand	Datakom
Model	DKG-329
Category	Controller
Language	English