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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

ZF27-550 combination of electrical appliances

Description

ZF27-550 , developed independently by Pinggao, is the GIS with the 550KV level, its technical parameters has been reached the international leading level. Used in the power system of 550KV, can be realized the controlling, measurement and protection. The main components include circuit breakers, disconnectors, earthing switches, quick earthing switches, current transformers, busbars and bushings for the wire’s incoming and outgoing. The external insulation of the bushing is air insulation, the rest of components are closed in the eath’s crust which use SF6 gas as arc extinguishing and insulating medium. Can be combined into different connection mode according to user’s requirements.

Main Features

1.Circuit breaker arcing chamber is a single fracture design, simple and reasonable structure, high technical content

2. Strong breaking capacity, long contact electrical life, long service period

3. Circuit breaker unit is installed on site without opening the chamber, which can be filled the SF6 gas directly, to avoid the intrusion of dust and foreign bodies

4. There are almost no external pipe for this new type of hydraulic operating mechanism, the possibility of oil leakage is reduced.

5. When operating the oil pressure, hydraulic operating mechanism is controlled by the pressure switch automatically, can be maintained constantly the rated oil pressure without being affected by ambient temperature, at the same time, the relief valve in the mechanism can be exempted from the risk of overpressure.

6. After the loss of pressure, hydraulic operating mechanism has the function of not slowing points when the pressure is reconstructed

7. The closing resistance of the product can be installed or removed according to the user’s requirements.

Service environment

1.1 The surrounding air temperature: -30℃~+40℃

1.2 Altitude:≤1000m

1.3 Wind speed:≤34m/s(Relative cylinder on the surface of 700 pa)

1.4 Icing-thickness:≤10mm

1.5 Seismic intensity:≤ 9°

Technical Parameters

Items

Specifications

Unit

Value

1

Rated voltage

kV

550

2

Rated current

A

6300

3

Rated frequency

Hz

50

4

 Rated withstand current/time

kA/S

63/3

5

Rated peak withstand current(peak value)

kA

135

6

SF6 gas annual leakage rate

%

≤0.5

7

SF6 gas moisture content(volume fraction)

10-6

Switching element chamber

Other chamber

≤150( before delivery)

≤250( before delivery)

8

Noise measurement

dB

≤110

9

SF6 gas rate pressure(gage pressure 20°C)

MPa

Circuit breaker chamber

 Others

0.6

0.5

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