Siemens SIPROTEC 7SD610 User Manual

2 Functions
108
7SD610 Manual
C53000-G1176-C145-4
Instantaneous trip-
ping before auto-
matic reclosure
If automatic reclosure must be performed, a quick clearance of the fault before reclo-
sure is usually desirable. A release signal from an external automatic reclosure device
can be injected via binary input „>O/C InstTRIP“. The interconnection of the inter-
nal auto recloser is performed via an additional CFC logic, which typically connects
the output signal 2889 „AR 1.CycZoneRel“ with the input signal „>O/C
InstTRIP“. Any stage of the overcurrent protection can thus perform an instanta-
neous trip before reclosure via the parameter Telep/BI ....
Switching onto a
fault
The internal line energization detection can be used to achieve quick tripping of the
circuit breaker in case of an earth fault. The time overcurrent protection can then trip
three-pole without delay or with a reduced delay. It can be determined via parameter
setting for which stage(s) the instantaneous tripping following energization applies
(refer also to the logic diagrams Figure 2-38, 2-41 and 2-39). This function is indepen-
dent of the high-current instantaneous tripping described in Subsection 2.8.
Pickup logic and
tripping logic
The pickup signals of the individual phases (or the earth) and of the stages are linked
in such a way that both the phase information and the stage which has picked up are
indicated (Table 2-3).
Table 2-3 Pickup signals of the single phases
Internal indication Display Output indication No
I>> PU L1
I> PU L1
I>>> PU L1
I> ger PU L1
Ip PU L1
Ip ger PU L1
2-38
2-39
2-40
2-41
2-42
„O/C Pickup L1“ 7162
I>> PU L2
I> PU L2
I>>> PU L2
I> ger PU L2
Ip PU L2
Ip ger PU L2
2-38
2-39
2-40
2-41
2-42
„O/C Pickup L2“ 7163
I>> PU L3
I> PU L3
I>>> PU L3
I> ger PU L3
Ip PU L3
Ip ger PU L3
2-38
2-39
2-40
2-41
2-42
„O/C Pickup L3“ 7164
I>> PU E
I> PU E
I>>> PU E
I> ger PU E
Ip PU E
Ip ger PU E
2-38
2-39
2-40
2-41
2-42
„O/C Pickup E“ 7165
I>> PU L1
I>> PU L2
I>> PU L3
I>> PU E
2-38
2-38
2-38
2-38
„O/C PICKUP I>>“ 7191
I> PU L1
I> PU L2
I> PU L3
I> PU E
„O/C PICKUP I>“ 7192
www . ElectricalPartManuals . com

Siemens SIPROTEC 7SD610 Specifications

General

Brand	Siemens
Model	SIPROTEC 7SD610
Category	Relays
Language	English