Generator Ground Fault (Level 1 & 2) - Woodward easYgen-2000 Series User Manual

ID Parameter
3903 Limit
3904 Delay
3901 Alarm class
3902 Self acknowl‐
edge
3905 Delayed by
engine speed
4.4.1.12 Generator Ground Fault (Level 1 & 2)
General notes
37535B
Configure Monitoring > Generator > Generator Ground Fault (Le...
CL Setting range Description
[Default]
2 0.5 to 15.0 % The percentage values that are to be monitored for each threshold limit are
defined here.
[10.0 %]
If this value is reached or exceeded for at least the delay time without inter‐
ruption, the action specified by the alarm class is initiated.
Notes
This value refers to the Generator rated voltage (parameter
2 0.02 to 99.99 s If the monitored generator voltage asymmetry exceeds the threshold value for
the delay time configured here, an alarm will be issued.
[5.00 s]
Notes
If the monitored generator voltage asymmetry falls below the threshold (minus
the hysteresis) before the delay expires the time will be reset
2 Class A/B/C/D/ Each limit may be assigned an independent alarm class that specifies what
E/F action should be taken when the limit is surpassed.
[F]
Notes
For additional information refer to
on page 587
2 Yes The control unit automatically clears the alarm if the fault condition is no
longer detected.
[No] The control unit does not automatically reset the alarm when the fault condi‐
tion is no longer detected.
The alarm must be acknowledged and reset by manually pressing the appro‐
priate buttons or by activating the LogicsManager output "External acknowl‐
edgement" (via a discrete input or via an interface).
2 [Yes] Monitoring for fault conditions is not performed until engine delayed moni‐
toring is enabled. The engine monitoring delay time (param‐
eter
parameters assigned this delay.
No Monitoring for this fault condition is continuously enabled regardless of engine
speed.
easYgen-2200/2500 | Genset Control
Ä Chapter 9.5.1 "Alarm Classes"
3315 Ä p. 239) must expire prior to fault monitoring being enabled for
The generator ground fault is determined differently
depending on the following configuration options:
Mains current input is configured for mains current
–
(calculated ground fault)
Mains current input is configured for ground cur‐
–
rent
(measured ground fault)
Refer to parameter 1854 Ä p.
Configuration
1766 Ä p. 95).
98.
123