Woodward easYgen-3000XT Series, Руководство пользователя

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• If the mains return during an emergency power operation (GCB is closed), the mains •
settling time (parameter ╚═▷ 2801 ) must expire before the load is transferred from
the generator to mains operation.
Activation of emergency power
If the mains are not within the configured frequency and voltage operating limits ( ╚═▷
“4.5.3.3 Mains Operating Ranges” ) for at least the time configured in the parameter
"Mains fail delay time" (parameter ╚═▷ 2800 ), an emergency power operation is
activated.
MCB malfunction
An emergency power operation will be performed, if the control is not able to close or
recluse the MCB and the alarm "Fail to close MCB" occurs.
Mains rotation field alarm
If the mains returns after a mains failure with a reversed rotation direction the generator
remains in emergency power operation until the mains rotation matches the rotation of
the generator set.
The generator will not start upon a mains rotation field alarm, but it will keep on running
if it has already started.
The following parameters only apply to application mode
A04
.
ID Parameter CL Setting range
[Default]
Description
2802 Emergency run 2 [On] If the unit is in the AUTOMATIC
operating mode and a mains fault
occurs according to the following
parameters, the engine is started
and an automatic emergency
operation is carried out.
Off No emergency operation is carried
out.
2800 Mains fail delay time
(Mains failure start
delay)
2 0.00 to 99.99 s
[3.00 s]
To start the engine and to carry
out an emergency operation the
monitored mains must be failed
continuously for the minimum
period of time set with this
parameter.
Notes
This delay time starts only if the
easYgen is in AUTOMATIC
operating mode and emergency
power is activated.
418 easYgen-3000XT Series B37574
4 Configuration
4.4.6 Emergency Run
Released