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C- GIS SF6 gas insulated metal enclosed high voltage switchgear

ZC1 series fully insulated switchgear is equipped with vacuum circuit breakers with superior performance. The cabinet frame is made of aluminum-zinc plate, which is processed by CNC machine tools and sheet metal bending process. It has good anti-corrosion performance and the enclosure protection grade is IP4X. All the main circuit live conductors are sealed in the gas chamber filled with SF6, with advanced technology, 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. Strong insulation performance

SF6 gas is used as the insulating medium, which has strong insulation performance and can withstand the impact of high voltage and high current;

2. Strong breaking capacity

The equipment adopts a metal closed structure, and the arc extinguishing chamber of the circuit breaker is placed in a closed metal shell, so that the arc generated when the fault current is broken can be quickly extinguished, and the breaking capacity of the circuit breaker is improved;

3. Long mechanical life

The operating mechanism of the equipment adopts high-quality spring operating mechanism, which has a long mechanical life and can ensure the long-term stable operation of the switchgear;

4, high security

The equipment has perfect safety protection devices, such as over-current protection, over-voltage protection, under-voltage protection, etc., which can detect and deal with abnormal situations in time and improve the safety of the equipment;

5. Easy maintenance

The structure of the equipment is simple, which reduces the maintenance cost of the equipment;

6. Compact design

Small footprint, saving land investment.

 

Technical parameters

Serial Number

Name

Parameters

Parameters

1

Rated voltage

12kV

40.5kV

2

Rated frequency

50Hz

50Hz

3

Rated current

630、1250、2500A

630、1250、2500A

5

Rated short-circuit breaking current

25kA；31.5kA；

25kA；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

SF6

SF6

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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