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1250A SF6 Inflatable cabinet armored metal enclosed switchgear

The core part of 1250A SF6 gas charging cabinet adopts load switch and circuit breaker, which has the advantages of simple structure, small volume, low price, improving power supply parameters and performance and power supply safety.
华拓集团
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Product overview

The core part of 1250A SF6 gas charging cabinet adopts load switch and circuit breaker, which has the advantages of simple structure, small volume, low price, improving power supply parameters and performance and power supply safety.

It is widely used in urban residential areas, high-rise buildings, large public buildings, factories, enterprises and other distribution stations and box substations in AC 10kV distribution systems.

 

Model meaning

HT

12

(V)

1250

25

Model of SF & ring network cabinet of Huatuo group

Rated voltage

12kV

Ring main unit type:
V-circuit breaker cabinet c-load switch cabinet
M-metering cabinet

Rated current: 1250A

Rated short-time withstand current:

25 kA

 

Technical Parameter

Project

Company

Parameter

Rated voltage

kV

12

Rated frequency

Hz

50

Rated current circuit breaker cabinet and load switch cabinet

A

1250

Circuit resistance circuit breaker cabinet

μΩ

≤150

Rated short-time withstand current

kA

25

Rated short-time withstand current time

s

4

Rated peak withstand current

kA

63

Rated short-circuit breaking current (circuit breaker cabinet)

kA

25

Rated short-circuit making current (circuit breaker cabinet)

kA

63

Temperature rise test current circuit breaker cabinet

A

1375

Rated power frequency lmin withstand voltage (phase to ground)

kV

42

Rated power frequency Imin withstand voltage (fracture)

kV

48

Peak value of rated lightning impulse withstand voltage (phase to ground)

kV

75

Peak value of rated lightning impulse withstand voltage (fracture)

kV

85

Partial discharge (ur. 12)

pc

≤10

Degree of protection (enclosure)

 

IP4X

Annual gas leakage rate

 

≤0.01%

Gas moisture content

uL/L

≤150

Rated operating voltage (DC)

V

48

Design pressure of inflatable compartment

MPa

0.08

 

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