Technical Data; General Technical Data - Siemens NXPLUS C Installation And Operating Instructions Manual

Description
Rated voltage U
r
Rated insulation Rated short-duration power-frequency withstand voltage
level U
d
- phase-to-phase, phase-to-earth, open contact gap
- across the isolating distance
Rated lightning impulse withstand voltage U
- phase-to-phase, phase-to-earth, open contact gap
- across the isolating distance
Rated frequency f
r
Rated normal current for busbar I
Rated filling pressure p
re
Minimum functional level p
me
Temperature range
Power losses per panel
38/266
10

Technical data

10.1

General technical data

p
r
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] Stand
ard
Up to 3.6 IEC
Up to 7.2 IEC
GB
GOST 32
Up to 12 IEC
GB
GOST 42
Up to 17.5 IEC
Up to 24 IEC
Up to 36/38 kV IEC
High-voltage test equipment
The following table shows the current draw per panel for dimensioning the high-voltage test
equipment. The test voltage is supplied through a NXPLUS C feeder panel. Further panels to
be tested are switched off during the test.
Test voltage [kV]
50
Normal current [A]
400
630
800
1000
1250
Revision 02 • INSTALLATION AND OPERATING INSTRUCTIONS • NXPLUS C • 806-9004.9
kV 7.2
kV 20 (32) 28 (42)
kV 23 (37) 32 (48)
kV 60 75 (95)
kV 70 85 (110)
Hz 50/60
Up
to A
kPa 150
kPa 130
o
C
Rated short-duration power-frequency
voltage [kV]
10
20
23
28
42
38
50
70
Current consumption of the
incoming panel [mA]
10
Rated voltage [kV]
7.2 12 15
12 15 17.5 24
36 38 50
40 45 60
95 95 125
105 110 145
2500
(-25) -5 ... +55
80% permissible test value
[kV]
8.0
16.0
18.4
25.6
22.4
33.6
33.6
30.4
40.0
56.0
Current consumption of further
panels (busbar) [mA]
5
17.5 24
70 W
160 W
250 W
400 W
600 W
27 36 38
70 70 70
77 80 77
150 170 150
165 195 165
1250
-35...+55
27 36/38