Solid insulation vacuum

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Product Description

Now all of the world is considering environmental protection issues,so if SF6 is considered not environmentally friendly, you can use solid material.

And technical requirement can reach SF6‘s level.And already passed E2 level.

Technical Parameter
ITEM	UNIT	VALUE
Rated voltage	KV	12
Power frequency withstand voltage(Phase to Phase、Phase to earth)	KV	42
Power frequency withstand voltage(Across isolating distance)	KV	48
Lighting impulse withstand voltage(Phase to Phase、Phase to earth)	KV	75
Lighting impulse withstand voltage(Across isolating distance)	KV	85
Rated frequency	Hz	50/60
Rated current	A	360.1250
Rated short-circuit breaking current	KA	20/25
Rated short time withstand current(4S)	KA	20/25
Rated peak withstand current	KA	50.63
Rated short-time making current	KA	50.63
Partial discharge	PC	10
Internal arc test	KA	20(0.5S-1S)
Electrical endurance		E2
Operate sequence		0-0.3s-CO- 180s-CO

Usage Environment

1.Altitude：Less than 3000m(The most 5000m)

2.ambient temperature：-40℃--40℃，The average daily temperature is not higher than 35°C

3.verage daily relative humidity:95% Monthly average relative humidity: 90%

Daily average saturated vapor pressure: ≤2.2×10-3Mpa Monthly average saturated vapor pressure: ≤1.8×10-3Mpa

4.Earthquake intensity: no more than 8 degrees

5.Horizontal acceleration: synthetic seismic wave 0.25g, sinusoidal resonance beat wave 0.15g

6.Low temperature and cold area: no SF6 gas application, no need to consider the low temperature operation of SF6 gas, and it can operate normally at -45C.

7.Plateau area: no need to consider the influence of plateau atmospheric pressure on insulation performance

8.Strong wind and sand area: The safety protection level of the solid insulation ring main unit is IP67, and the control circuit room adopts special treatment to ensure long-term operation in strong wind and sand areas.

9.Coastal wet areas: epoxy resin sealing, anti-moisture, anti-salt spray corrosion, to ensure long-term use in coastal areas. Areas with high environmental protection requirements: The impact of SF6 gas on atmospheric warming has been highly regarded, and the solid ring main unit has eliminated SF6 gas, which does not cause any pollution and harm to the environment and people.

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