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HY5WS - 17/50Lightning arrester series

Composite coat metal oxide arrester is an advanced protective appliance to limit overvoltage. It is widely used in power generation, transmission, transformation and distribution systems to protect the insulation of electrical equipment from overvoltage
华拓集团
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Product overview

Composite coat metal oxide arrester is an advanced protective appliance to limit overvoltage. It is widely used in power generation, transmission, transformation and distribution systems to protect the insulation of electrical equipment from overvoltage.

The composite sheathed metal oxide arrester not only has the advantages of porcelain sheathed metal oxide arrester, but also has good electrical insulation performance, high dielectric strength, leakage mark resistance, electric corrosion resistance, heat resistance, cold resistance and aging resistance; Explosion proof, hydrophobic, sealing and other advantages.

The drop type (cast-in-place and detachable) lightning arrester is a modified distribution type zinc oxide lightning arrester, which is cleverly installed on the drop mechanism of the drop type fuse, so that under the condition of continuous power supply, the lightning arrester can be easily detected, repaired and replaced with the help of the insulated pull-out lever, which not only ensures the smoothness of the line, Moreover, it greatly reduces the work intensity and time of power maintenance personnel, and is especially suitable for places that are not suitable for power failure, such as communication, airport, station, hospital, prosperous commercial area, etc. Other properties of the product are the same as those of distribution arrester.

 

Model meaning

H

Y

5

W

S

17

15

Composite material
(covered with silicone rubber)
Jin Zeng Nominal discharge current No gap Distribution type arrester Rated voltage of lightning arrester: 17kv Residual voltage of lightning arrester
50kV

 

Working conditions
◊ Ambient temperature: not lower than - 40 ° C, not higher than + 60 ° C
◊ The altitude shall not exceed 3000m. If it exceeds 3000m, it can be specially made according to the actual situation.
◊ Power frequency: 48Hz ~ 62Hz
◊ Maximum wind speed: no more than 35m / S
◊ Seismic intensity: areas with 7 degrees and below
◊ The voltage applied to the arrester for a long time shall not exceed its rated voltage.
◊ The air of the installation site shall be free of chemical corrosive gas, steam and explosive dust. If any, it shall be indicated when ordering.

 

Working conditions

Project Company parameter
System rated voltage

kV

10

Rated voltage of lightning arrester

kV

17

Rated frequency vehicle

Hz

50

Continuous operating voltage

kV

13.6

Current 1mA reference voltage

kV

E25

Leakage current at 0.75 DC reference voltage

uA

兰50

Residual voltage of 8 / 20us lightning impulse current

kV

GO

30 / 80us operating impulse current residual voltage

kV

< 42.5

1 / lous steep wave impulse current residual voltage

kV

W57.5

Rated short-time power frequency withstand voltage Dry state

kV

42

  Wet state  

30

Rated lightning impulse withstand voltage (peak)

kV

75

Nominal discharge current

kA

5

 

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