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MEC 320 GENSET CONTROLLER
PM079 Rev 0 07/06/08 11 Thomson Technology
Block mode description
AMF (no back Synchronization / Open Transition)
Auto mode description
The unit automatically starts the gen-set and switches to generator supply at a mains failure
after an adjustable delay time. It is possible to adjust the unit to change to gen-set operation in
two different ways.
1. The mains breaker will be opened at gen-set start-up.
2. The mains breaker will remain closed, until the gen-set is running, and the gen-set
voltage and frequency is OK.
In both cases, the generator breaker will be closed, when the generator voltage and frequency is
OK, and the mains breaker is open.
When the mains returns, the unit will switch back to mains supply and cool down and stop the
gen-set. The switching back to mains supply is done without back Synchronization (Open
Transition), when the adjusted ‘mains OK delay’ has expired.
Semi-auto mode description
When the generator breaker is closed, the unit will use the nominal frequency as the set point for
the speed governor.
Test mode description
Manual mode description
Block mode description
See general semi-auto mode description on page 12.
See general test mode description valid for all gen-set modes on page 13.
See general manual mode description valid for all gen-set modes on page 13.
See general block mode description valid for all gen-set modes on page 14.
See general block mode description valid for all gen-set modes on page 14.
Содержание MEC 320
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