The two TPGAPC blocks 1 and 2 are timers and used for setting the minimum pulse
length for the outputs. There are four generic timers (TPGAPC1..4) available in the
IED. The remaining ones not described in the functional diagram are available in
SMT for connection where applicable.
3.6 Standard configuration D including non-directional
earth-fault protection and CB condition monitoring
3.6.1 Applications
The standard configuration for non-directional earth-fault protection is mainly
intended for cable and overhead line feeder applications in directly or resistance
earthed distribution networks. The IED with this standard configuration is delivered
from the factory with default settings and parameters. The end-user flexibility for
incoming, outgoing and internal signal designation within the IED enables this
configuration to be further adapted to different primary circuit layouts and the related
functionality needs by modifying the internal functionality with SMT and PST.
3.6.2 Functions
Table 15: Functions included in the REF615 standard configuration with non-directional earth-
fault protection
Function
IEC 61850 IEC ANSI
Three-phase non-directional overcurrent
protection, low stage
PHLPTOC1 3I> 51P-1
Three-phase non-directional overcurrent
protection, high stage, instance 1
PHHPTOC1 3I>> (1) 51P-2 (1)
Three-phase non-directional overcurrent
protection, high stage, instance 2
PHHPTOC2 3I>> (2) 51P-2 (2)
Three-phase non-directional overcurrent
protection, instantaneous stage
PHIPTOC1 3I>>> 50P/51P
Arc protection ARCSARC1
ARCSARC2
ARCSARC3
ARC (1)
ARC (2)
ARC (3)
50L/50NL (1)
50L/50NL (2)
50L/50NL (3)
Non-directional earth-fault protection, low stage EFLPTOC1 I
0
> (1) 51N-1 (1)
Non-directional earth-fault protection, low stage
(Non-directional sensitive earth-fault)
EFLPTOC2 I
0
> (2) 51N-1 (2)
Non-directional earth-fault protection, high stage EFHPTOC1 I
0
>> 51N-2
Non-directional earth-fault protection,
instantaneous stage
EFIPTOC1 I
0
>>> 50N/51N
Negative-sequence overcurrent protection,
instance 1
NSPTOC1 I
2
> (1) 46 (1)
Negative-sequence overcurrent protection,
instance 2
NSPTOC2 I
2
> (2) 46 (2)
Phase discontinuity PDNSPTOC1 I
2
/I
1
> 46PD
Table continues on next page
Section 3 1MRS756378 D
REF615 variants
68 REF615
Application Manual
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