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Copyright ® Henan pinggao Electric Co.,Ltd         豫ICP备05010380号

Company name: henan pinggao electric co. LTD

Address: Henan province of pingdingshan city

south ring road 22

Mail editor: 467000
E -  mail : pinggao@pinggao.esgcc.com.cn

400-6700-312

PRODUCT

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PRODUCTS

ZGW5-10~50D/J5000-25 type Disconnector

Description

ZGW5-10~50D/J5000-25 type Disconnector

Products application

ZGW5-1050 - d/J5000-25 type high-voltage DC disconnector is widely used in low voltage side of DC field in DC converter station, mainly used in neutral busbar, low voltage side of DC filter, grounding lead, etc.

Service environment

a) The surrounding air temperature: -40℃~+40℃

b) Altitude: ≤2000m

c) Wind speed: ≤34m/s

d) Icing-thickness: ≤20mm

f) seismic intensity: ≤9°

g) The installation site should be free of severe vibration and flammable, explosive materials and chemical corrosion.

Technical parameters

Specification

Unit

Value

Product type

 

ZGW5-10

ZGW5-50

Rated DC voltage

kV

10

50

Rated DC current

A

5 000

5 000

Rated insulation level

60 min DC withstand voltage(dry、wet)

kV

15

75

Rated lightning impulse withstand voltage(peak1.2/50ms)

kV

To ground: 150 break

To ground: 450 fracture

Rated operating impulse withstand voltage(peak250/2500ms)(dry、wet)

kV

To ground:100 break

To ground: 340 fracture

Rated short-time withstand current of disconnector

kA

25(3s)

Rated short-time withstand current of attached earthing switch

kA

Rated peak withstand current of disconnector

kA

63

Rated peak withstand current of attached earthing switch

kA

terminal static mechanical load

N

Longitudinal 2000
Horizontal 1500
Vertical 1250

Product structure

ZGW5-1050D / J5000-25 type high voltage DC disconnector adopts double column horizontal open single fracture structure, mainly composed of the base assembly, DC supporting insulator, conductive system, motor operating mechanism and other components; can configure one or two sets Grounding switch according to the demand; grounding switch uses straight lun structure, layout method is vertical to disconnector. Disconnector and grounding switch are operated opening and closing by the CJ11A motor operating mechanism. The disconnector and earthing switch are constructed using an external pressure plate spring structure.

Main Features

1. ZGW5-1050D//J5000-25 DC disconnector adopts double column horizontal open single fracture structure, which is developed by our company independently and our company has the full intellectual property rights.

2. Rated insulation level reaches the requirement of altitude 2000m, meet insulation requirement of DC disconnector and earthing switch in the present ±500 kV DC transmission project.

3. 5000A of rated DC current, 5000 times of mechanical life, stable and reliable of technical performance.

4. Contact uses an external pressure plate spring structure. The insulation pad is installed between plate spring and contact finger to eliminate the failure caused by the spring with long term flow and hot. The fixed assembly structure is used between contact finger and contact seat, effectively increase the reliability between the conductive contact surface. Attached grounding switch adopts straight lun structure, the arrangement is vertical to disconnetor. Simple structure, reliable performance.

5. Products passed the national identification in July 2010 which is organized by the China Machinery Industry Federation , its technical performance reached the international advanced level

Corresponding parameter set not found, please add it in property template of background
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暂未实现,敬请期待
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