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GIR-12 series gas insulation ring network cabinet (spring, permanent magnet)

GIR-12 series ring network cabinet is an expandable SF6 gas insulating metal closed switch device, voltage level is 12kV, high voltage all charged part is completely sealed in SF6 gas boxes formed by welding of 3mm stainless steel plates, volume compact It is safe and reliable, which is suitable for power system urban network transformation, power distribution station and load center power station, petrochemical and other fields.
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product description

GIR-12 series ring network cabinet is an expandable SF6 gas insulating metal closed switch device, voltage level is 12kV, high voltage all charged part is completely sealed in SF6 gas boxes formed by welding of 3mm stainless steel plates, volume compact It is safe and reliable, which is suitable for power system urban network transformation, power distribution station and load center power station, petrochemical and other fields.


Model Description


Enterprise WeChat screenshot _FD6BA97A-4286-4F79-8B01-029949DF8CB4


Switch cabinet detailed configuration scheme description

Enterprise WeChat screenshot _B35B3D18-D593-4076-8438-103D41910854


Use environment

Name

unit

Environmental value

Amazing air temperature

Maximum temperature

+50

Minimum temperature

--40

Maximum temperature difference

K

30

altitude

m

≤5000

Solar radiation intensity

W / cm2

0.1

Contamination


Ice thickness

mm

10

humidity

Daily relative humidity average

%

≤100

Monthly relative humidity average

≤95

Tolerate earthquake

≤8

Note: Environmental parameters are exceeded in the previous table, please contact us.


Serial number

project

unit

C load switch cabinet

F combination electrical cabinet

V circuit holder cabinet

1

Rated voltage

KV

12

2

Rated frequency

Hz

50

3

1MIN power frequency withstand voltage (phase, relative ground / fracture)

KV

42/48

4

Lightning impact pressure (phase, relative ground / fracture)

KV

75/85

5

Rated current

A

630

125 *

630

6

Rated short circuit opening current

ka

-

31.5

20

7

Rated short-term resistance (4S)

ka

20

-

20/25

8

Rated peak tolerance

ka

50

-

50/63

9

Rated short-circuit combination current

ka

50

80

50/63

10

Mechanical life

5000

5000

10000

11

Rated SF6 gas pressure (20 ° C table pressure)

MPA

0.04

12

Protective level (melt, SF6 gas box / cabinet)


IP67 / IP4X

13

Internal arc (switch room and cable room)


20kA 1S / 25KA 1S

14

Annual leaf rate

%

≤0.01

Note: Technical parameters exceed the scope of the previous table, please contact us

The main switch and the ground switch have mechanical interlocking functions.

The switch is operated by a dedicated operating handle, and the operation speed and strength of the contact are determined by the operating mechanism spring, and the change is changed due to the different operators. When the switch is hierarchically, the speed of the contact is rely on the speed and the arc gate to extinguish the arc, and the arc current is cut immediately.

The switch operation holes can be locked with a bright lock to prevent errors.

The switch main mechanism and grounding mechanism use spring storage operators, structural stability, less components, low failure rate, and significantly improved product reliability, and the mechanical life is as high as 10,000.

The key components use non-ferrous metal materials such as aluminum alloys. Other components use high-density carbon steel, treated by 8 steps, and finally baking highly attached outdoor military powder, ensuring institutional performance.

The mechanism interlock is directly fixed to the main body of the main mechanism and the ground mechanism, ensuring that the interlock indication is consistent with the actual position of the switch and prevents errors.

Electric operating mechanism: When a set of electric motors and attachments are installed on the basis of the original manual operating mechanism, it can be extended as an electric operating mechanism.

The switch adopts foreign technology. The key components use imported products, and the modular contacts are highly conductive and high-conducting tabs, the auxiliary silver process, so that their comprehensive conductive capacity is significantly improved, and the temperature rise is clearly smaller than the similar imported products.

Move, the static contacts are valid for 105mm, leading to the domestic leading, maximizing the insulation performance of the product under the zero table.

The FTU can be installed to realize the transient current speed, time-limited current speed, timing overcurrent, etc., and can remotely control the ring switch device.


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