Siemens SIPROTEC 7SJ80 User Manual

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Figure 2-91
Timing diagram showing two unsuccessful reclosing shots
Initiation
Initiation of the automatic reclosing function can be caused by internal protection functions or externally via
binary inputs. The automatic reclosing function can be programmed in such manner that any of the elements
of the following Table can initiate (Starts 79), not initiate (No influence), or block reclosing (Stops
79):
Table 2-14
Anwurf AWE
Non-directional start Directional start Start other
50-1 67-1 Senitive Ground Fault Protection
(50Ns, 51Ns)
50N-1 67N-1 Negative Sequence Protection 46
50-2 67-2 BINARY INPUT
50-3 67-3
50N-2 67N-2
50N-3 67N-3
51 67-TOC
51N 67N-TOC
On initiation, the automatic reclosure function is informed that a trip command was issued and the respective
reclosing program is now being executed.
The binary input messages 2715
>Start 79 Gnd and 2716 >Start 79 Ph for starting an automatic reclo-
sure program can also be activated via CFC (fast PLC task processing). Automatic reclosure can thus be initi-
ated via any messages (e.g. protective pickup) if address 7164 BINARY INPUTis set to Starts 79.
Functions
2.15 Automatic Reclosing System 79
SIPROTEC 4, 7SJ80, Manual 211
E50417-G1140-C343-A8, Edition 12.2017

Siemens SIPROTEC 7SJ80 Specifications

General

Rated Frequency	50/60 Hz
Rated Current	1 A / 5 A
Operating Temperature	-25°C to +55°C
Storage Temperature	-40°C to +70°C
Current Transformer Inputs	4
Application	Protection of feeders, motors, transformers, and generators
Rated Voltage	100-240 V AC/DC
Communication Protocols	IEC 61850, Modbus, DNP3, IEC 60870-5-103
Display	Graphical LCD
Mounting	Flush mounting
Protection Functions	Overcurrent, Earth fault
Communication Interfaces	Ethernet, RS485
Housing	Plastic
Weight	Approx. 1.5 kg