4.5.1.2
Generator Voltage Monitoring
ID
Parameter
CL
Setting range
[Default]
Description
1770
Generator voltage
monitoring
2
The unit can either monitor the
phase-neutral (wye) voltages or
the phase-phase (delta) voltages.
If the controller is used in a
compensated or isolated network,
voltage protection monitoring
should be configured as phase-
neutral to prevent earth-faults
resulting in tripping of the voltage
protections.
[Phase - phase]
The phase-phase voltage will be
monitored and all subsequent
parameters concerning voltage
monitoring "generator" are
referred to this value (V
L-L
).
Phase - neutral
The phase-neutral voltage will be
monitored and all subsequent
parameters concerning voltage
monitoring "generator" are
referred to this value (V
L-N
).
Notes
WARNING: This parameter defines
how the protective functions
operate.
Table 65: Settings: Generator Voltage Monitoring
4.5.1.2.1
Generator Overvoltage (Level 1 & 2) ANSI# 59
General notes
Voltage is monitored according to how the parameter "Generator voltage measuring"
(parameter
) is configured. This controller provides the user with two alarm
levels for generator overvoltage. Both alarms are definite time alarms.
Monitoring for overvoltage faults is performed in two steps.
If this protective function is triggered, the display indicates "Gen. overvoltage 1" or
"Gen. overvoltage 2" and the logical command variable "06.05" or "06.06" will be
enabled.
╚═▷ “9.1.1 Triggering Characteristics”
for the triggering characteristic of this
monitoring function. The diagrams listed there show a frequency trend and the associated
pickup times and length of the alarms.
The parameter limits listed below have identical setting ranges. Each parameter may be
configured with different settings to create unique trip characteristics for specific
thresholds.
422
easYgen-3000XT Series
B37574
4 Configuration
4.5.1.2 Generator Voltage Monitoring
Released