Siemens SIPROTEC User Manual

Technical Data
4.7 Power Swing Detection (with impedance pickup) (optional)
SIPROTEC, 7SD5, Manual
C53000-G1176-C169-5, Release date 02.2011
596
4.7 Power Swing Detection (with impedance pickup) (optional)
Power swing detection Rate of change of the impedance phasor
and observation of the impedance trajectory
Maximum power swing frequency Approx. 10 Hz
Power swing blocking programs Blocking of Z1 and Z1B
Blocking of Z2 and higher zones
Blocking of Z1 and Z2
Block all zones
Power swing trip Trip following instable power swings
(out-of-step)

Siemens SIPROTEC Specifications

General

Brand	Siemens
Model	SIPROTEC
Category	Protection Device
Language	English