Voltage Protection 27, 59 - Siemens siprotec SJ62 User Manual

4.8

Voltage Protection 27, 59

Setting Ranges / Increments
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
Undervoltage 27-1, 27-2
- Connection: Phase–to–Ground Voltages 10 V to 210 V
- Connection: Phase–to–Phase Voltages 10 V to 120 V
- Connection: Single-phase for 27-1, 27-2 10 V to 120 V
Dropout ratio r for 27-1, 27-2
Dropout Threshold for (r ·27-1 pickup) or
(r · 27-2 pickup)
Time Delays 27-Delay
Current Criteria „Bkr
Closed I MIN"
Overvoltage 59-1, 59-2
- Connection: Phase-to-ground voltages
and evaluation of the largest voltage
- Connection: Phase-to-phase voltages
and evaluation of the largest voltage
- Connection: Single-phase for 59-1, 59-2 40 V to 150 V
- with evaluation of the negative sequence
components
Dropout ratio r for 59-1, 59-2
Dropout threshold for (r · 59-1 pickup) or
(r · 59-2 pickup)
Time delay 59-Delay
1)
r = V /V
dropout pickup
Measured quantity used
With three-phase connec-
tion:
With three-phase connec-
tion
with single-phase connec-
tion
1.01 to 3.00
max. 120 V for phase–to–phase voltage
max. 210 V for phase–to–ground voltage
Minimum hysteresis 0.6 V
0.00 s to 100.00 s or ∞
(disabled)
for I = 1 A 0.04 A to 1.00 A
Nom
for I = 5 A 0.20 A to 5.00 A
Nom
Measured quantity used
With three-phase connec-
tion
With three-phase connec-
tion
with single-phase connec-
tion
40 V to 260 V
40 V to 150 V
2 V to 150 V
1)
0.90 to 0.99
max. 150 V for phase–to–phase voltage
max. 260 V for phase–to–ground voltage
Minimum hysteresis 0.6 V
0.00 s to 100.00 s
4.8 Voltage Protection 27, 59
Positive sequence
component of phase-
to-phase voltages
Smallest of the
phase-to-phase volt-
ages or positive se-
quence component
Single-phase phase-
ground or phase-
phase voltage con-
nected
Increments 1V
Increments 1V
Increments 1V
Increments 0.01
Increments 0.01 s
Increments 0.01 A
Largest voltage of the
three phase-to-phase
voltages
Negative sequence
voltage component or
largest voltage of the
three phase-to-phase
voltages
Single-phase phase-
ground or phase-
phase voltage con-
nected
Increments 1V
Increments 1V
Increments 1V
Increments 1 V
Increments 0.01 V
Increments 0.01 s
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