MSC-40.5SF6 inflation cabinet

MSC-40.5SF6 inflation cabinet

Product Introduction: 

MSC-40.5 type metal enclosed switchgear, suitable for three-phase AC power supply system primary distribution, can also be used for new energy power generation collection booster station. Products are widely used in power system, power generation, urban network subway, rail transit, petrochemical, metallurgy and other large industrial customers to meet customer needs.

MSC-40.5 type metal enclosed switchgear all high voltage components such as vacuum circuit breaker, three-station isolation switch and bus bar are installed in stainless steel air box, and filled with micro positive pressure SF6 gas for insulation. Products are not affected by the external environment, stable and reliable operation. Especially suitable for the use of wet, high altitude, serious pollution and other harsh environment places.

Product features:

Advanced technology: The structural vacuum circuit breaker adopts the solid sealed pole structure, the circuit is sealed for life, and the maintenance free design;

Friendly operation: three-door structure, the low-pressure chamber door and the mechanism room door open independently, do not affect each other, avoid misoperation; Close the door operation, no need to open the door to carry out the mechanism operation, to ensure the safety of personnel operation to a greater extent;

Advanced technology: the products are assembled in a million clean workshop; The gas box adopts laser welding technology, and the helium leak detection process is used to detect the whole gas box before leaving the factory.

Reliable and safe: circuit breaker and isolation isolation configuration mechanical, electrical double interlocking; Cable rooms are equipped with mechanical interlocking; Each air chamber is equipped with an independent pressure relief device.

Product parameter 

SN

Project

Unit

Argument

1

Rated voltage

kV

40.5

2

Rated frequency

Hz

50/60

3

Rated current

A

630/1250/1600/2000/2500

4

1minPower frequency

To the ground and alternate

kV

95

Vacuum fracture, isolation fracture

kV

118

5

Rated lightning impulse voltage

To the ground and alternate

kV

185

Vacuum fracture, isolation fracture

kV

215

6

Partial discharge

pC

≤10

7

Rated short-circuit breaking current

kA

31.5

8

Rated short circuit duration

S

4

9

Rated capacitor breaking current

A

400/630

10

Rated cable charging breaking current

A

50

11

Class of protection

Gas tank

/

IP67

Cabinet

/

IP4X

12

Annual leakage rate

%/Y

≤0.1

13

Mechanical life

Vacuum circuit breaker

time

10000

Three-station switch

time

5000

14

Electrical life

time

30

15

Cabinet width

mm

600/800

16

Loss of operational continuity category

category

LSC2B

Frequently Asked Questions

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