Siemens siprotec SJ62, Руководство пользователя

Страница: 480 / 715

4.8 Voltage Protection 27, 59
478
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
4.8 Voltage Protection 27, 59
Setting Ranges / Increments
1)
r = V
dropout
/V
pickup
Undervoltage 27-1, 27-2 Measured quantity used
With three-phase connec-
tion: Positive sequence
component of phase-
to-phase voltages
With three-phase connec-
tion Smallest of the
phase-to-phase volt-
ages or positive se-
quence component
with single-phase connec-
tion Single-phase phase-
ground or phase-
phase voltage con-
nected
- Connection: Phase–to–Ground Voltages 10 V to 210 V Increments 1V
- Connection: Phase–to–Phase Voltages 10 V to 120 V Increments 1V
- Connection: Single-phase for 27-1, 27-2 10 V to 120 V Increments 1V
Dropout ratio r for 27-1, 27-2 1.01 to 3.00 Increments 0.01
Dropout Threshold for (r ·27-1 pickup) or
(r · 27-2 pickup) max. 120 V for phase–to–phase voltage
max. 210 V for phase–to–ground voltage
Minimum hysteresis 0.6 V
Time Delays 27-Delay 0.00 s to 100.00 s or
∞
(disabled)
Increments 0.01 s
Current Criteria „Bkr
Closed
I MIN“
for
I
Nom
= 1 A 0.04 A to 1.00 A Increments 0.01 A
for
I
Nom
= 5 A 0.20 A to 5.00 A
Overvoltage 59-1, 59-2 Measured quantity used
With three-phase connec-
tion Largest voltage of the
three phase-to-phase
voltages
With three-phase connec-
tion Negative sequence
voltage component or
largest voltage of the
three phase-to-phase
voltages
with single-phase connec-
tion Single-phase phase-
ground or phase-
phase voltage con-
nected
- Connection: Phase-to-ground voltages
and evaluation of the largest voltage 40 V to 260 V Increments 1V
- Connection: Phase-to-phase voltages
and evaluation of the largest voltage 40 V to 150 V Increments 1V
- Connection: Single-phase for 59-1, 59-2 40 V to 150 V Increments 1V
- with evaluation of the negative sequence
components 2 V to 150 V
Increments 1 V
Dropout ratio r for 59-1, 59-2
1)
0.90 to 0.99 Increments 0.01 V
Dropout threshold for (r · 59-1 pickup) or
(r · 59-2 pickup) max. 150 V for phase–to–phase voltage
max. 260 V for phase–to–ground voltage
Minimum hysteresis 0.6 V
Time delay 59-Delay 0.00 s to 100.00 s Increments 0.01 s