Deif PPM 300 - Over-Current (ANSI 50 TD)

3.4.7 Over-current (ANSI 50TD)
Protection IEC symbol (IEC60617) ANSI (IEEE C37.2) IEC 61850 Operate time
Over-current 3I>, 3I>> 50TD PTOC < 100 ms
The alarm response is based on the highest phase current true RMS values from the source,
as measured by the controller.
Set
point
Value
time
Delay
Configure the parameters under Configure > Parameters > [Source] > Current protections > Over-current #, where # is 1 or 2.
Table 3.35
Default parameters
Parameter Range Over-current 1 Over-current 2
Set point Variable. Depends on current transformer settings. 100 % 110 %
Delay 0.00 s to 1 h 20 s 60 s
Enable Not enabled, Enabled Enabled Enabled
Latch Not enabled, Enabled Not enabled Enabled
Alarm action Warning Trip [Breaker]
3.4.8 Fast over-current (ANSI 50/50TD)
Protection
IEC symbol (IEC60617) ANSI (IEEE C37.2) IEC 61850 Operate time
Fast over-current 3I>>> 50/50TD* PIOC* < 50 ms
*Note: ANSI 50 and IEC 61850-5 PIOC apply when the Delay parameter is 0 s.
The alarm response is based on the highest phase current true RMS values from the source,
as measured by the controller.
Set
point
Value
time
Delay
Configure the parameters under Configure > Parameters > [Source] > Current protections > Fast over-current #, where # is 1
or 2.
Table 3.36
Default parameters
Parameter Range Fast over-current 1 Fast over-current 2
Set point Variable. Depends on current transformer settings. 200 % 300 %
Delay 0.00 s to 1 h 0.00 s 0.00 s
Enable Not enabled, Enabled Not enabled Not enabled
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