861-9601.9 • INSTALLATION AND OPERATING INSTRUCTIONS • 8DA10 • Revision 11 31/214
Description
17 Technical data
17.1 Electrical data
Complete switchgear
Electrical data, filling pressure, temperature for single-busbar switchgear
Rated insulation level Rated voltage U
r
kV 12 24 36 40.5
Rated short-duration power-frequency withstand voltage U
d
- phase-to-earth, open contact gap kV 28 50 70 85
- across the isolating distance kV 32 60 80 90
Rated lightning impulse withstand voltage U
p
- phase-to-earth, open contact gap kV 75 125 170 185
- across the isolating distance kV 85 145 195 220
Rated frequency f
r
Hz 50/60 50/60 50/60 50/60
Rated normal current
1
I
r
for the busbar A 1250 1250 1250 1250
A 2000 2000 2000 2000
A 2500 2500 2500 2500
A 3150 3150 3150 3150
A 4000 4000 4000 4000
A 5000 5000 5000 5000
Filling pressure (pressure values
at 20 °C)
Rated filling level
pre
(absolute) for
busbar
kPa 70/120
Minimum functional level p
me
(absolute)
kPa 50/100
Ambient air temperature T Operation without secondary
equipment
°C -25 to +55
Operation with secondary equipment
2
°C -5/-25 to +55
for storage/transport, also with
secondary systems
3
°C -25 to +55
°C -40 to +70 (option)
Degree of protection for parts of the primary circuit under high
voltage
IP 65
Switchgear enclosure
IP 3XD/IP 31D
3
Low-voltage compartment IP 31D/IP 41
1
The rated normal currents apply to ambient air temperatures of max. +40 °C.
The 24-hour mean value is max. +35 °C (according to IEC 62271-1 and IEC 62271-200).
2
Depending on the secondary equipment used
3
Depending on the design option
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