Datakom D-500 MK2, User Manual

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D-500 MK2 User Manual Firmware V-6.3
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PARAMETERS TO ADJUST:
The Distributed Power Export functionality is enabled by a digital input set to the “
Distributed Power
Export
” function (function_56). When signal arrives to this input, then the Distributed Power Export
operating mode is enabled.
Parameter Definition Description
Minimum Exported Power The exported power will not fall below this limit.
Export Power Ramp
(kW/sec) The genset active export power (KW) will be increased/decreased with
this rate.
Frequency Barrier
This is the minimum variation from the nominal frequency causing a
power rump-up or ramp-down operation.
Other than above parameters, all parameters related to Power Export to Mains should be adequately
programmed and the Power Export mode should be enabled.
The purpose of this operating mode is to supply the with genset power wherever this is possible. This
occurs generally in gas producing plants.The mains is used in order to back gensets up when the genset
power or the gas production is insufficient
All gensets in the system synchronize and share the load. When genset power reaches the set limit, then
gensets synchronize with tha mains and start parallel operation. The extra load demand is supplied by the
mains.
In order to activate Peak Lopping with Genset Priority, the Peak Lopping Enable parameter must be
activated and the Peak Lopping Priority parameter must be set as Genset Priority.
If the total genset power available reaches Multi Genset Quick Start value, then the genset system will
synchronize to the busbar and the excess load will be supplied by the mains. Gensets continue their
operation at the power rating defined in
Multi Genset Quick Start parameter. If the load falls below the
Multi Genset Quick Start parameter then the mains contactor opens and the load will be supplied by the
genset system only.
If one of the digital inputs of the Mains Synchronizing unit is adjusted as Force Parallel Operation and a
signal is applied to this input, the genset system will immediately synchronize to the mains regardsless of
the load value. However the load will be supplied by the genset system only. This operation mode allows
synchronizing to the mains to be ready before heavy loads enter into service.
PARAMETERS TO BE ADJUSTED:
Parameter Definition Description
Peak Lopping Enable This parameter allows the genset system to share the load with mains.
Peak Lopping Priority If this parameter is adjusted as Genset has priority over mains, then the
mains supplies the load only if the genset power is unsufficient.
Multi Genset Quick Start
If the genset total active load is above this level, the genset system will
synchronize to the mains and the excess load will be supplied by the
mains.
31.4. PEAK LOPPING WITH GENSET PRIORITY