Section 2: Protection Functions; 27/59 Under/Over Voltage; Reference; Operate And Reset Level - Siemens 7SR12 Argus Manual

7SR11 & 7SR12 Performance Specification

Section 2: Protection Functions

2.1

27/59 Under/over voltage

Reference

2.1.1
Parameter
V
Setting
s
hyst Hysteresis setting
t
Delay setting
d

Operate and Reset Level

2.1.2
Attribute
V Operate level
op
Reset level
Repeatability
Variation

Operate and Reset Time

2.1.3
Attribute
Element basic
t
basicE
operate time
t Operate time following delay
op
Repeatability
Disengaging time
©2017 Siemens Protection Devices Limited
Overvoltage
Undervoltage
-10 °C to +55 °C
f ± 5 %
nom
Overvoltage
Undervoltage
Value
5, 5.5...200V
0, 0.1... 80.0%
0.00, 0.01...20.00, 20.50... 100, 101... 1000, 1010...
10000, 10100... 14400 s
Value
100 % Vs, ± 1 % or ±0.25V
± 1 % or ± 0.25V
= (100 % - hyst) x V
op,
± 1 % or ± 0.25V
= (100 % + hyst) x V
op
± 1 %
≤ 5 %
≤ 5 %
Value
0 to 1.1 x Vs: 73 ms, ± 10ms
0 to 2.0 xVs: 63 ms, ± 10ms
1.1 to 0.5 xVs: 58 ms, ± 10ms
, ± 1 % or ± 10ms
t + t
basic d
± 1 % or ± 10ms
< 80 ms
Chapter 3 Page 18 of 56