Siemens siprotec SJ62, Руководство пользователя

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4 Technical Data
477
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015
4.7 Single-Phase Overcurrent Protection 50
Current Elements
Operating Times
Dropout Ratios
Tolerances
Influencing Variables for Pickup Values
High-set current elements 50-2 0.05 A to 35.00 A
1)
0.003 A to 1.500 A
2)
or
∞
(element disabled)
Increments 0.01 A
Increments
0.001 A
T
50-2
0.00 s to 60.00 s
or
∞
(no trip)
Increments 0.01 s
Definite-Time Current Element
50-1
0.05 A to 35.00 A
1)
0.003 A to 1.500 A
2)
or
∞
(element disabled)
Increments 0.01 A
Increments
0.001 A
T
50-1
0.00 s to 60.00 s
or
∞
(no trip)
Increments 0.01 s
The set times are pure delay times.
1)
Secondary values for
I
Nom
= 1 A; with
I
Nom
= 5 A multiply currents by 5
2)
Secondary values for „sensitive“ measuring input, independent of nominal device current
Pickup/Dropout Times
Frequency Pickup Time 50 Hz 60 Hz
minimum 14 ms 13 ms
maximum
≤
35 ms
≤
35 ms
Dropout time approx. 25 ms 22 ms
Current Elements approx. 0.95 for I / I
Nom
≥
0.5
Currents 3 % of setting value or 1 % of nominal current
at
I
Nom
= 1 A or 5 A
5 % of setting value or 3 % of nominal current
at
I
Nom
= 0.1 A
Times 1 % of setting value or 10 ms
Power supply direct voltage in range 0.8
≤
V
PS
/V
PSNom
≤
1.15
1 %
Temperature in Range
23.00
°
F (–5
°
C)
≤ Θ
amb
≤
131.00
°
F (55
°
C)
0.5 %/10 K
Frequency in range 0.95
≤
f/f
Nom
≤
1.05 1 %
Harmonics
- up to 10 % 3rd harmonic
- up to 10 % 5th harmonic
1 %
1 %