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C- GIS environmental protection gas insulated metal enclosed high voltage switchgear

Green, intelligent and innovative switchgear is the current trend. ZC7 environmentally friendly gas insulated switchgear adopts advanced processing technology and design concepts, and uses environmentally friendly insulating gas instead of SF6 gas to provide customers with a safe, reliable, green and environmentally friendly new experience. All the main circuit live conductors are sealed in the gas chamber filled with green environmental protection gas, with advanced technology, green environmental protection, stable performance, reasonable structure, maintenance-free, safe and reliable, etc., is the best equipment for receiving and distributing electric energy and protecting the power grid. It is used in 3 ~ 40.5kV three-phase power system with rated frequency of 50Hz, especially suitable for places with frequent operation of important load.
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Product Parameters

Performance characteristics

1. Miniaturized design

Reasonable and compact structure, small size, light weight, convenient operation, to maximize customer space requirements;

3. Good sealing performance

Seals using silicone rubber sealing material, long life, low air leakage rate;

4. Strong environmental adaptability

The main body of the primary circuit is sealed in an independent air box, free from environmental impact, and can cope with various harsh natural environments (sea water, tropical high temperature, dust, humidity, and chemical pollution), with strong environmental adaptability and life-long maintenance-free;

5, intelligent

Secondary control using digital microcomputer integrated protection device, small size and strong function;

6. High security

The primary high-voltage part is sealed in the airtight welded gas box to avoid touching any charged body. The logical mechanical interlock avoids misoperation. The perfect linkage and locking and reliable internal arc resistance design ensure the safety of operators;

7. Environmentally friendly

The use of environmentally friendly insulating media, no greenhouse gas emissions, clean and environmentally friendly, no harmful gas generation, to ensure personal safety;

8, Modular Design

The busbar and cable accessories adopt plug-in shielding structure, which is convenient and quick to install and expand, and reduces the power failure time of the equipment.

 

Technical parameters

 

Serial Number

Name

Parameters

Parameters

1

Rated voltage

12kV

40.5kV

2

Rated frequency

50Hz

50Hz

3

Rated current

1250、2500、3150A

1250A、2500

5

Rated short-circuit breaking current

25kA；31.5kA；

31.5kA；

6

Rated short-circuit closing current

63kA；80kA；

80kA；

7

Rated short-time withstand current/time

25kA/4S；31.5kA/4S

31.5kA/4S

8

Rated peak withstand current peak

63kA；80kA；

80kA；

9

Rated short-time power frequency withstand voltage

Interphase and to the ground

42kV/1min

95kV/1min

fracture

48kV/1min

118kV/1min

10

Rated lightning impulse withstand voltage peak

Interphase and to the ground

75kV

185kV

fracture

85kV

215kV

11

insulating gas

environmental protection gas

environmental protection gas

12

annual leakage rate

≤ 0.05%

≤ 0.05%

13

Rated operating sequence

0-0.3s-CO-180s-CO

0-0.3s-CO-180s-CO

14

Protection level

Gas box: IP67; Housing: IP4X

Gas box: IP67; Housing: IP4X

 

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