DSE 8610 MKII, Operator'S Manual

Page: 147 / 188

Protections
Page 147 of 188 057-254 ISSUE: 2
Fault Description
Gen Loading Frequency
The module detected that the generator output frequency had not
risen above the Generator Loading Frequency setting after the
Warming Up timer had expired.
Gen Loading Voltage
The module detected that the generator output voltage had not risen
above the Generator Loading Voltage setting after the Warming Up
timer had expired.
Gen Over Current
IEEE C37.2 – 51 IDMT Overcurrent
Relay
NOTE: For more details, see section entitled Over Current
Alarm elsewhere in this document.
The module detected that the generator output current had risen
above the Generator Over Current Trip for the duration of the IDMT
function.
Gen Over Frequency
IEEE C37.2 – 81 Frequency Relay
The module detected that the generator output frequency had risen
above the Over Frequency Alarm Trip level for the configured delay
timer.
Gen Over Frequency
Overshoot
IEEE C37.2 – 81 Frequency Relay
The module detected that the generator output frequency had risen
above the Over Frequency Overshoot Trip during the configured
Overshoot Delay timer whilst starting.
Gen Over Voltage
IEEE C37.2 – 59 AC Overvoltage
Relay
The module detected that the generator output voltage had risen
above the Over Voltage Alarm Trip level for the configured delay
timer.
Gen Phase Seq Wrong
IEEE C37.2 – 47 Phase Sequence
Relay
The module detected that the phase rotation of the generator was
different to the configured Generator Phase Rotation Alarm setting.
Gen Reverse Power
IEEE C37.2 – 32 Directional Power
Relay
The module detected that the generator output kW had fallen below
the Reverse Power Trip for the configured delay timer.
Gen Short Circuit
IEEE C37.2 – 51 IDMT Short Circuit
Relay
NOTE: For more details, see section entitled Short Circuit
IDMT Alarm elsewhere in this document.
The module detected that the generator output current had risen
above the Short Circuit Trip for the duration of the IDMT function.
Gen Under Frequency
IEEE C37.2 – 81 Frequency Relay
The module detected that the generator output frequency had fallen
below the Under Frequency Alarm Trip level for the configured delay
timer after the Safety On Delay timer had expired.
Gen Under Voltage
IEEE C37.2 – 27 AC Undervoltage
Relay
The module detected that the generator output voltage had fallen
below the Under Voltage Alarm Trip level for the configured delay
timer after the Safety On Delay timer had expired.
Inlet Temperature
The module detected that the engine’s ECU measurement of inlet
temperature had risen above the Inlet Temperature Alarm Trip level.
Insufficient Capacity
The module’s governor output has reached its limit whilst attempting
to control the generator to produce more kWs whilst in parallel. This
indicates a fault with either the governor (including connection error),
setting of SW2, or that the engine has reached its maximum
capacity.
kW Overload
IEEE C37.2 – 32 Directional Power
Relay
The module detected that the generator output kW had risen above
the Overload Protection Trip for the configured delay timer.
Loss of Excitation
The module detected that the generator output kvar had fallen below
the Loss of Excitation Alarm Trip level for the configured delay.
Loss of Mag-PU
The module detected that the magnetic pick up was not producing a
pulse output after the required Crank Disconnect criteria had been
met.
Mag-PU Fault
The module detected that circuit to the magnetic pick up sensor had
become open circuit.
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