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OSIS24 series Solid Insulated Switchgear

  • OSIS24 series Solid Insulated Switchgear-1
  • Description
  • Specification
  • Features
  • Size
  • Catalogue

It is the first solid insulated switchgear created and manufactured in China, intelligent, environmentally-friendly, non-arcing, small size, free of maintenance and running under severe conditions. It is a new type product whose MV switchgear technology is leading both in China and in the world.

No.

Description

Unit

Parameter

1

Rated voltage

kV

12

24

2

Power frequency withstand voltage (1 min)

Phase to phase/earth

kV

42

50

Open contacts

48

60

3

Impulse withstand voltage

Phase to phase/earth

kV

75

125

Open contacts

85

145

4

Rated frequency

Hz

50/60

5

Rated current

A

630/1250/2500

6

Rated short-circuit breaking current

kA

25/31.5/40

20/25/31.5

7

Rated short time withstand current

kA

25/31.5/40

20/25/31.5

8

Rated short-circuit duration

s

4

4

9

Rated peak withstand current

kA

63/80/100

50/63/80

10

Rated short-circuit making current

kA

63/80/100

50/63/80

11

Mechanical endurance

VCB

Ops.

10000

VEDS

1000

12

Protection degree

Switchgear

IP4X

Primary parts

IP67


Separate-phase design, the surface of insulating parts is painted with conductive or semi-conductive material and connected to earth reliably. Phase to phase and phase to earth are isolated so there is no internal arc. The switchgear can run in all service conditions.

 

Disconnector and earthing switch are vacuum insulated. The product is fully sealed and the protection degree of its primary components reaches IP67.

 

The integrity of vacuum in the vacuum interrupters can be monitored by means of on-line vacuum monitoring technology.

 

As it is solid insulated, there is no SF6 in it, more environmentally-friendly.

 

Modular design, easy and convenient to install and maintain; the faulted panel can be disassembled alone and then replaced, which improves the continuity of power supply.


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