Technical Data; Complete Switchgear - Siemens NXPLUS C Installation And Operating Instructions Manual
Medium-voltage switchgear, fixed-mounted circuit-breaker switchgear up to 24 kv, extendable, single busbar, metal-enclosed, gas-insulated
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- Installation and operating instructions manual (172 pages) ,
- Installation and operating instructions manual (266 pages)
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10
Technical data
10.1
Complete switchgear
General electrical data
Rated voltage
Rated short-duration power-frequency withstand
voltage
- phase-to-phase, phase-to-earth, open contact
gap
- across the isolating distance
Rated lightning impulse withstand voltage
- phase-to-phase, phase-to-earth, open contact
gap
- across the isolating distance
Rated frequency
Rated short-circuit breaking current
Rated short-circuit making current
Rated peak withstand current
Rated short-time withstand current
Rated normal current of busbar, max.
Rated normal current for incoming and outgoing
feeders
Rated normal current for switch-disconnector panel,
max. (depending on fuse-link)
Rated normal current
- Vacuum contactor panel without fuses
- Vacuum contactor panel with fuses
Ring-main panel
Temperature range
1
Higher rated short-duration power-frequency withstand voltage available with:- 42/95 kV for
phase-to-phase, phase-to-earth, open contact gap- 48/110 kV across isolating distance
2
Depending on HV HRC fuse-link. Observe the let-through current of the HV HRC fuse.
3
Option
Test voltages for busbar voltage transformers at 50 Hz
The busbar voltage transformers can be tested together with the switchgear at 80% of the
rated short-duration power-frequency voltage.
Primary voltage [kV]
up to 3.6
up to 7.2
up to 12
up to 17.5
up to 24
High-voltage test equipment
The following table shows the power consumption per panel for dimensioning the high-
voltage test equipment. The test voltage is supplied through a feeder panel of NXPLUS C.
Further panels to be tested are switched off during the test.
Revision 11 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 802-9081.9
kV
kV
kV
kV
kV
Hz 50/60
kA
kA
kA
kA
A
A
A
A
A
A
o
C
Standard
Rated short-duration power-
frequency withstand voltage
[kV]
IEC
10
IEC
20
GB
23
GOST
32
IEC
28
GB
42
GOST
42
IEC
38
IEC
50
7.2
12
15
1
20
36
28
23
39
1
32
60
1
95
75
70
110
1
85
31.5
63/80
63/80
max. 31.5 (3 s)
1250/1600/2000/2500
630/1000/1250/2000/2500
630/1000/1250/2000
50 ... 250
450
2
450
630
3
-5/-25
... +55
80% permissible test
value [kV]
8.0
16.0
18.4
25.6
22.4
33.6
33.6
30.4
40.0
17.5
24
38
50
45
60
95
125
110
145
25
max. 25 (3 s)
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