Siemens 7SR12 Argus User Manual

7SR11 & 7SR12 Applications Guide
Page 24 of 48 ©2017 Siemens Protection Devices Limited
I
RES
V
RES
I
RES
Cos
θ
I
RES
Sin
θ
θ
Figure 2.8-5 Cosine component of current
(iii) Application of a Wattmetric power characteristic. The directional 50/51 SEF element operation is subject to an
additional sensitive residual power element which operates only on the real (wattmetric) component of residual
power.

Siemens 7SR12 Argus Specifications

General

Brand	Siemens
Model	7SR12 Argus
Category	Protection Device
Language	English