Siemens SIPROTEC 7SJ80 User Manual

[lo-recl-rel-qvp-20120319, 2, en_US]
Figure 2-53
Logic diagram of QU protection restarting
Setting Notes
General
Configuration of the protection functions at address 155 27/Q-Protection defines whether the QU protec-
tion is Enabled or Disabled.
At address 5501 27/Q-Protection the QU protection function can be switched ON or OFF.
The release current is entered at address 5502 I-Release. The default setting is at 10 % of the rated current.
The threshold is one of the pickup criteria for tripping.
At address 5503 Inrush blk you can activate the blocking when inrush has been detected.
2.9.2
Functions
2.9 Undervoltage-controlled reactive power protection (27/Q)
144 SIPROTEC 4, 7SJ80, Manual
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