NES

The type-tested medium-voltage switchgear with withdrawable unit technology is used for primary distribution applications.

There are numerous cubicle variants, which can be used to provide the optimal solution for the requirements of customers in industry and energy supply companies.

Pressure relief channels, single or collective absorbers and deflector plates are used to discharge hot gases arising in the event of an internal arc.

Design features and classification in accordance with standard IEC 62271-200

Busbar system Single
Operational availability category LSC 2B
Partition class PM
Internal arc resistance classification IAC AFLR

Switchgear system

12 kV

 

Rated value

max.

 

Rated voltage

12

kV

Rated power-frequency withstand voltage

28

kV

Rated lightning impulse withstand voltage

75

kV

Rated busbar current

2,500

A

Rated short-time withstand current

40

kA

Rated impulse current

100

kA

Rated short circuit period

3

s

Internal arc resistance

AFLR 40 kA / 1 s