7
Fig. 2.1
Name plate on the operating panel
(front side) of the switchgear panel
1 Type designation
2 Serial number
3 Year of manufacture
4 Rating (see also IEC 62271-200)
2 Technical data
>>
2.1 Type designation
The type designation of the switch-
gear panels - see name plate -
informs about
• design
• rated peak withstand current
• rated voltage
• dimensions
Example WS A 6 / 36 - 2 / 6 23
Series WS
Single busbar A
Double busbar B
Rated peak withstand current 60 kA
Rated voltage 36 kV
Rated lightning impulse
withstand voltage 170 kV
Dimensions:
Panel width 600 mm
Panel height 2,300 mm
1
2
3
4
In case of queries and orders for
spare parts, the following data on
the name plate must be specified:
- Type designation
- Serial number
- Year of manufacture
2.2 Ratings for Switchgear WS
Rated voltage U
r
[kV] 12 17.5 24 36
Rated lightning impulse withstand voltage U
p
[kV] 75 95 125 170
Rated short-duration power-frequency withstand voltage U
d
[kV] 28 38 50 70
Rated normal current busbar I
r
max. [A] 2,500
Rated normal current feeder I
r
max. [A] 2,500
Rated peak withstand current Ip max. [kA] 82
Rated short-circuit breaking current I
sc
max. [kA] 31.5
Rated short-time withstand current I
k
max. [kA] 31.5 ( 3 s)
Rated frequency f
r
[Hz] 50/60