Power Factor; Reference; Operate And Reset Level; Operate And Reset Time - Siemens 7SR12 Argus Manual

2.18 55 Power Factor

Reference

2.18.1
Parameter
55-n Setting
PF
s
t 55-n Delay setting
d

Operate and Reset Level

2.18.2
Attribute
PF Operate Level
op
Reset Level
Repeatability
Variation

Operate and Reset Time

2.18.3
Attribute
t Element basic operate time
basic
t Operate time following delay
op
Disengaging time

Operate Threshold

2.18.4
Attribute
Minimum levels for
operation
©2017 Siemens Protection Devices Limited
Under PF
Over PF
-10 °C to +55 °C
+ 2 Hz ± 0.05
f – 3 Hz to f
nom nom
I
V
7SR11 & 7SR12 Performance Specification
Value
0.05...0.99
0.00 ... 14400 s
Value
± 0.05
PF
s
≤PF
+ 0.02
op
≥PF
- 0.02
op
± 0.05
± 0.05
Value
≤ 70 ms
, ± 1 % or ± 10ms
t + t
basic d
< 80 ms
Value
2.5 % In
2.5% Vn
Chapter 3 Page 45 of 56