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Middle Voltage Switchgear

4000A Switchgear

4000A Switchgear

General 1.Ratings:system voltage 3.6kV,7.2KV ,12KV,rated current up to 4000A,AC three phase 50/60HZ. 2.Application:medium voltage gas insulated switchgear mainly applicable in the power plant,substation, mineral enterprise to receive and distribute power with the functions of......

General
1.Ratings:system voltage 3.6kV,7.2KV ,12KV,rated current up to 4000A,AC three 
phase 50/60HZ.
2.Application:medium voltage gas insulated switchgear mainly applicable in the power plant,substation, mineral enterprise to receive and distribute power with the functions of controlling,protecting and 
monitoring.It also can be used in places where the frequently operations are in need.
3.Standard: IEC62271-200

Working Conditions
1.Ambient air temperature: -15℃~+40℃.
2.Altitude: ≤1000m.
3.Relative humidity : Daily average≤95%, daily averange of vapour pressure≤2.2kpa.
4.Earthquake intensity: ≤magnitude 8.
5.Applicable in the places without corrosive and flammable gas and water vapor .
6.Used in place without frequently intense vibrant.
Note: Customized products are available.


No.

Item

Unit

Data

1

Rated voltage

kV

3.6, 7.2, 12

2

Rated frequency of circuit breaker

Hz

50

3

Rated current of circuit breaker

A

630, 1250, 1600, 2000, 2500, 3150, 4000

4

Rated current of switchgear

A

630, 1250, 1600, 2000, 2500, 3150, 4000

5

Rated short -time withstandcurrent(4s)

kA

16, 20, 25, 31.5, 40, 50

6

Rated withstands current (peak)

kA

40, 50, 63, 80, 100, 25

7

Rated short -circuit breaking current

kA

16, 20, 25, 31.5, 40, 50

8

Rated short -circuit closingcurrent(peak)

kA

40, 50, 63, 80, 100, 25

9

Rated
     insulation
     leve

1 min power frequency
     withstands voltage

between poles, pole to earth

kV

24, 32, 42

between open contacts

kV

24, 32, 48

Lightening

impulse
    withstands voltage (peak)

between poles, pole to earth

kV

40, 60, 75

between open contacts

kV

46, 70, 85

10

Protection level


Shell: IP4X; IP2X when the CPT
     and CB doors are open


 Note: 
 1. The short circuit capacity of the current transformer should be separately  considered.
 2. see technical parameters of ZN63A-12 in related catalogues of our  company. 


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