Negative Sequence Protection (inverse-time characteristics)
Setting Ranges / Increments
Pickup value 46-TOC (
Ι
2p
)
für
Ι
Nom
= 1 A
0.05 A to 2.00 A
Increments 0.01 A
für
Ι
Nom
= 5 A
0.25 A to 10.00 A
Time Multiplier T
I2p
(IEC)
0.05 s to 3.20 s or ∞ (disabled)
Increments 0.01 s
Time Multiplier D
I2p
(ANSI)
0.50 s to 15.00 s or ∞ (disabled)
Increments 0.01 s
Functional Limit
Functional Limit
for
Ι
Nom
= 1 A all phase currents ≤ 10 A
for
Ι
Nom
= 5 A all phase currents ≤ 50 A
Trip Time Curves acc. to IEC
See also
The trip times for
Ι
2
/
Ι
2p
≥ 20 are identical to those for
Ι
2
/
Ι
2p
= 20
Pickup Threshold
approx. 1.10·
Ι
2p
4.10
Technical Data
4.10 Negative Sequence Protection (inverse-time characteristics)
470
SIPROTEC 4, 7SJ62/64, Manual
C53000-G1140-C207-8, Edition 08.2016
Содержание SIPROTEC 4
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