Technical Data
10-23
7SJ63 Manual
C53000-G1140-C120-1
10.8
Negative Sequence Protection (46)
10.8.1 Definite–Time Elements (46-1 and 46-2)
Pickup and Time
Delay Ranges/
Resolutions
Pickup Current
46-1
0.50 A to 15.00 A
1
)(Increments 0.05 A)
1
)
or
∞
(ineffective, no pickup)
Pickup Current
46-2
0.50 A to 15.00 A
1
)(Increments 0.05 A)
1
)
or
∞
(ineffective, no pickup)
Time Delays
46-1, 46-2
0.00 s to 60.00 s (Increments 0.01 s)
or
∞
(does not expire)
Functional Limits
Lower Functional Limit
at least one phase current > 0.5 A
1
)
Upper Functional Limit
all phase currents
≤
20 A
1
)
Inherent Operating
Times
Pickup Time
approx. 35 ms
Dropout Time
approx. 35 ms
Dropout
Dropout/Pickup (ratio) 46-1, 46-2
approx. 0.95 for I
2
/I
N
> 0.3
Tolerances
Pickup Currents 46-1, 46-2
3% of set value or 50 mA
1
)
Time Delays
1% or 10 ms
Influencing Vari-
ables for Pickup-
Pickup Currents
Power Supply DC voltage in range
0.8
≤
V
PS
/ V
PS nominal
≤
1.15
1%
Temperature in range
23º F
≤
ϑ
amb
≤
131º F
0.06% /10º F
Frequency in range
0.95
≤
f/f
N
≤
1.05
1%
Harmonic currents
– Up to 10 % 3
rd
Harmonic
1 %
– Up to 10 % 5
th
Harmonic
1 %
1
) For I
N
= 1 A, divide all limits and increments by 5.
10.8.2 Inverse–Time Elements (46-TOC)
Pickup and Time
Multiplier
Pickup Current
46–TOC
0.50 A to 10.00 A
1
)(Increments 0.05 A)
1
)
Time Multiplier
T
I2p
0.05 s to 3.20 s
(Increments 0.01 s)
(IEC)
or
∞
(does not trip)
Time Multiplier
D
I2p
0.50 s to 15.00 s (Increments 0.01 s)
(ANSI)
or
∞
(does not trip)
Functional Limits
Lower Functional Limit
at least one phase current > 0.5 A
1
)
Upper Functional Limit
all phase currents
≤
20 A
1
)
1
) For I
N
= 1 A, divide all limits and increments by 5.
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