Siemens 8DJH Series - Technical data; General technical data

500-8067.9 * INSTALLATION AND OPERATING INSTRUCTIONS 8DJH * Revision 03 41
Description
8 Technical data
8.1 General technical data
General electrical data
Filling pressure Pressure values at 20 °C
Rated insulation level Rated voltage U
r
kV 7.2 12 15 17.5 24
Rated short-duration power-frequency withstand voltage U
d
- phase-to-phase, phase-to-earth, open contact gap kV 20 28/42* 36 38 50
- across isolating distance kV 23 32/48* 39 45 60
Rated lightning impulse withstand voltage U
p
- phase-to-phase, phase-to-earth, open contact gap kV 60 75 95 95 125
- across isolating distance kV 70 85 110 110 145
Rated frequency f
r
Hz 50/60
Rated normal current I
r
for ring-main feeders A 400 or 630
for busbar A 630
for transformer feeders A
200
1)
Rated short-time withstand
current I
k
for switchgear with t
k
= 1 s up to
kA
25 20
for switchgear with t
k
= 3 s (design option) kA 20
Rated peak withstand current I
p
up to
kA
63 50
Rated short-circuit making
current I
ma
for ring-main feeders up to
kA
63
2)
50
for transformer feeders kA 25
Ambient air temperature T without secondary equipment °C -25/-40* to +70
with secondary equipment °C
-5/-15
3)
/-25
3)
to +55
Storage and transport including secondary systems °C -40 to +70
Type of protection for parts of the primary circuit under high voltage IP 65
for switchgear enclosure IP2X/IP3X*
Low-voltage compartment IP3X/IP4X*
* Design option
1)
Depending on HV HRC fuse-link
2)
52.5 kA at 60 Hz
3)
Depending on the secondary equipment used
Rated filling level p
re
for insulation (absolute) kPA 150
Minimum functional level p
re
for insulation (absolute) kPA 130