Intermittent Ground Fault Protection - Siemens siprotec SJ62 User Manual

4 Technical Data
4.16

Intermittent Ground Fault Protection

Setting Ranges / Increments
Times
Tolerances
Influencing Variables
497
Pickup Threshold
with IN
with 3I0
with INs
Pickup extension time T
v
Ground Fault Accumulation Time T
Reset Time for Accumulation T
Number of Pickups for Intermittent
Ground Fault
Pickup Times
– Current = 1.25 x Pickup Value
– for ≥ 2 · Pickup Value
Dropout Time (without extension time)
Pickup threshold I
Times T , T , T
V sum res
Power Supply DC Voltage in Range
0.8 ≤ V ≤ 1.15
/V
PS PSNom
Temperature in Range
0 °C ≤ Θ ≤ 40 °C
amb
Frequency in range 0.98 ≤ f/f
for I = 1 A 0.05 A to 35.00 A
Nom
for I = 5 A 0.25 A to 175.00 A
Nom
for I = 1 A 0.05 A to 35.00 A
Nom
for I = 5 A 0.25 A to 175.00 A
Nom
0.005 A to 1.500 A
0.00 s to 10.00 s
0.00 s to 100.00 s
sum
1 s to 600 s
res
2 to 10
Approx. 30 ms
Approx. 22 ms
Approx. 22 ms
3 % of set value or 10 mA for I
or 50 mA for I
1 % of setting value or 10 ms
<1 %
<0.5 %/ K
≤ 1.02
<5% relating to the set time
N
Increments 0.01 A
Increments 0.01 A
Increments 0.01 A
Increments 0.01 A
Increments 0.001 A
Increments 0.01 s
Increments 0.01 s
Increments 1 s
Increments 1
= 1 A
Nom
= 5 A
Nom
SIPROTEC 4, 7SJ62/63/64 Handbuch
C53000-G1140-C147-A, Edition 07.2015