10.5.8 Overspeed
These two alarms are for overspeed protection.
The alarm response is based on the shaft generator speed, as measured by the
MPU/W/NPN/PNP input.
Set
point
Value
time
Delay
Configure these parameters under
Configure > Parameters > Engine > Protections > Overspeed #
, where # is 1 or 2.
Table 10.21
Default parameters
Parameter
Range
Overspeed 1
Overspeed 2
Set point
10 to 150 % of nominal speed
110 %
120 %
Delay
0 s to 3 min
5 s
1 s
Enable
Not enabled, Enabled
Not enabled
Not enabled
Latch
Not enabled, Enabled
Nort enabled
Enabled
Action
Warning
Trip generator breaker
INFO
In addition to these overspeed alarms, one of the controller's digital inputs can be connected to hardware that detects
overspeed. A customised alarm for overspeed can then be configured on that digital input.
10.5.9 Other SHAFT generator controller alarms
The following alarms are also included on the SHAFT generator controllers:
•
Under-speed
•
Primary running feedback failure
•
Voltage or frequency not OK
•
Magnetic pickup wire break*
•
Total running hours notification
•
Trip running hours notification
More information
For the alarm marked with *, see
Hardware characteristics and configuration
for more information.
For the other alarms, see
GENSET controller
,
GENSET controller alarms
for more information.
DESIGNER'S HANDBOOK 4189340911K UK
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