Negative Sequence Protection - Siemens SIPROTEC 7SJ62 Manual

4.9

Negative Sequence Protection 46-1, 46-2

Setting Ranges / Increments
Unbalanced load tripping element
46-1,46-2
Delay Times 46-1, 46-2
Dropout Delay Times 46 T DROP-OUT
Functional Limit
Functional Limit
Times
Pickup Times
Dropout Times
Dropout Ratio
Characteristic 46-1, 46-2
Tolerances
Pickup values 46-1, 46-2
Time Delays
Influencing Variables for Pickup Values
Power supply direct voltage in range 0.8 ≤ V
Temperature in range 23.00 °F (-5 °C) ≤ Θ
Frequency in range 0.95 ≤ f/f
Harmonics
- up to 10 % 3rd harmonic
- up to 10 % 5th harmonic
Transient overreaction for τ > 100 ms (with full displacement)
SIPROTEC, 7SJ62/64, Manual
C53000-G1140-C207-2, Release date 01.2008
= 1 A 0.10 A to 3.00 A or ∞ (disabled)
for I
Nom
= 5 A 0.50 A to 15.00 A or ∞ (disabled)
for I
Nom
0.00 s to 60.00 s or ∞ (disabled)
0.00 s to 60.00 s
= 1 A all phase currents ≤ 10 A
for I
Nom
= 5 A all phase currents ≤ 50 A
for I
Nom
Approx. 35 ms
Approx. 35 ms
Approx. 0.95 for I /I
2 Nom
3 % of set value or 10 mA for I
1 % or 10 ms
≤ 1.15
/V
PS PSNom
≤ 131.00 °F (55 °C)
amb
≤ 1.05
Nom
4.9 Negative Sequence Protection 46-1, 46-2
≥ 0.3
= 1 A or 50 mA for I
Nom
1 %
0.5 %/10 K
1 %
1 %
1 %
<5 %
Technical Data
Increments 0.01 A
Increments 0.01 s
Increments 0.01 s
= 5 A
Nom
499