DKG-225 User Manual Firmware V-01
DKG-225
AUTOMATIC MAINS
FAILURE UNIT
WITH INTERNAL
CHARGER
DKG-225, is a low cost AMF controller for 12V-DC
gensets, featuring an internal battery charger. Internal
fuel and crank relays are rated at 40Amps@12V-DC
and do not require external relays.
Thus a typical transfer panel will simply consist on one
DKG-225 and two contactors, reducing material cost,
panel size and production time.
The unit supports also current transformer connections
allowing detailed power measurements from both mains
and genset sides. The standard unit supports 1A and
5A secondary CTs. A special version supports low cost
and small 0.1A secondary CTs allowing more compact
panel design.
Thanks to the DKG-225, automatization of small
gensets has become easy and cost effective.
In AUTO position, the unit monitors 3 phases of the
mains, runs and stops the genset automatically and
performs load transfer. When the engine is running, it
monitors internal protections and alarm inputs.
The 1Amp @12V-DC rated battery charger is sufficient
for the float charging of the engine start battery.
Timers, threshold levels, input and output configurations
are digitally programmable. Programs are modified
through front panel pushbuttons and do not require an
additional unit.
The fault conditions are considered in 2 categories as
Warnings and Alarms. Measured values have separate
programmable limits for warning and alarm conditions.
•
Automatic mains monitoring
•
Automatic load transfer
•
Automatic starting and stopping
•
Automatic stopping in fault condition
• Gas engine support
•
Test mode available
•
Emergency backup mode
• 3 phase mains voltage inputs
• 3 phase genset voltage inputs
•
3 phase mains/genset CT inputs
• 2 configurable analog sender inputs
• 3 configurable digital inputs
•
Detailed AC measurements and protections
•
Internal battery charging rectifier
•
40 Amp rated Fuel and Crank outputs
•
Front panel adjustable parameters
•
Stop, preheat and choke output capability
•
Survives cranking voltage dropouts
•
Compact dimensions, panel mounted
Mains Volts: L1-N, L2-N, L3-N, L1-L2, L2-L3, L3-L1
Genset Volts: L1-N, L2-N, L3-N, L1-L2, L2-L3, L3-L1
Load Currents: L1, L2, L3
Load total kW, kVA, kVAr, cos
Φ
Genset Frequency
Battery Voltage
Oil pressure
Coolant temperature
Engine run Hours
Service Counters
MEASUREMENTS
FEATURES
DESCRIPTION
