Woodward easYgen-3000XT Series, Руководство пользователя

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4.5.3 Mains
4.5.3.1 General Mains Monitoring
ID Parameter CL Setting range
[Default]
Description
1771 Mains voltage
monitoring 2 The unit can either monitor the
wye voltages (phase-neutral) or
the delta voltages (phase-phase).
The monitoring of the wye voltage
is above all necessary to avoid
earth-faults in a compensated or
isolated network resulting in the
tripping of the voltage protection.
[Phase - phase] The phase-phase voltage will be
monitored and all subsequent
parameters concerning voltage
monitoring "mains" are referred to
this value (VL-L).
Phase - neutral The phase-neutral voltage will be
monitored and all subsequent
parameters concerning voltage
monitoring "mains" are referred to
this value (VL-N).
All The phase-phase and phase-
neutral voltage will be monitored
and all subsequent parameters
concerning voltage monitoring
"mains" are referred to this value
(VL-L & VL-N).
This setting is only effective if
"Mains voltage measuring"
(parameter
╚═▷ 1853 ) is
configured to "3Ph 4W".
Notes
WARNING: This parameter
influences the protective
functions.
Please be aware that if "Mains
voltage monitoring" (parameter
╚═▷ 1771 ) is configured to "All"
and the function ╚═▷ “4.5.1.2.2
Generator Undervoltage (Level 1
& 2) ANSI# 27”
is used, that this
function only monitors "Phase -
neutral".
2801 Mains settling time 2 0 to 9999 s
[20 s]
To end the emergency operation,
the monitored mains must be
within the configured operating
parameters without interruption
for the minimum period of time
set with this parameter without
interruption.
This parameter permits delaying
the switching of the load from the
generator to the mains.
485 easYgen-3000XT Series B37574
4 Configuration
4.5.3 Mains
Released