Technical Data
10-32
7SJ63 Manual
C53000-G1140-C120-1
10.12 Voltage Protection (27 and 59)
Setting Ranges /
Resolution
Undervoltage
27-1, 27-2
Measurement Quantities:
PositiveSequence Voltages
- Pickup Voltage,
30 V to 210 V
(Increments 1 V)
phase-ground voltages
- Pickup Voltage
30 V to 120 V
(Increments 1 V)
phase-phase voltages
Dropout Ratio for 27-1
r = 1.05 to 3.00
(Increments 0.01)
Dropout Ratio for 27-1 r · pickup
max. 130 V for phase-phase voltages
max. 225 V for phase-ground voltage
Time Delay
27-Delay
0.00 s to 60.00 s (Increments 0.01 s)
or
∞
(does not expire)
Current Supervision
ON/OFF
by 50 Element “BkrClosed
I
MIN”
0.20 A to 5.00 A
1
) (Increments 0.05 A)
1
)
Overvoltage
59-1
- Pickup Voltage,
40 V to 225 V
(Increments 1 V)
phase-ground voltages
- Pickup Voltage,
40 V to 130 V
(Increments 1 V)
phase-phase voltages
Time Delay
59-1 Delay
0.00 s to 60.00 s (Increments 0.01 s)
or
∞
(does not expire)
The set time are pure delay times.
Inherent Operating
Times
Pickup Times
– Undervoltage
27-1, 27-2
approx. 50 ms
– Overvoltage
59-1
approx. 50 ms
Dropout Times
– Undervoltage
27-1, 27-2
approx. 50 ms
– Overvoltage
59-1
approx. 50 ms
Dropout Ratios
– Dropout / Pickup (Voltage ratio) 27-2
1.05
– Dropout / Pickup (Voltage ratio) 59-1
0.95
Tolerances
– Pickup Voltages
3% of set value, or 1V
– Time Delays
T
1% of set value, or 10 ms
Influencing Vari-
ables
Power supply DC voltage (V
DC
) in range
0.8
≤
V
PS
/ V
PS nominal
≤
1.15
1%
Temperature in range
23º F
≤
ϑ
amb
≤
131º F
0.3 % /10º F
Frequency in range
0.95
≤
f/f
N
≤
1.05
1%
Harmonics
- Up to 10% 3
rd
harmonic
1%
- Up to 10% 5
th
harmonic
1%
1
) For I
N
= 1A, divide the limits by 5.
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