11kv Zinc Oxide Lighting Arrester in Substation

Wenzhou XiFa Electric Power Equipment Co., Ltd is an experienced manufacture to produce 11kv zinc oxide lighting arrester in substation. It widely adopt in Power grid, factory, photovoltaic and wind power plant. The core component of 11kv zinc oxide lighting arrester in substation adopts high performance zinc oxide valve plate, which has excellent nonlinear volt ampere characteristics, fast response, and low residual voltage. Each 11kv zinc oxide lighting arrester in substation 100% inspection before leaving the factory to ensure that each lightning arrester is safe and reliable. The service life of 11kv zinc oxide lighting arrester in substation is typically in excess of 20 years and they are maintenance free.

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Product Description

The 11kv zinc oxide lighting arrester is a critical protective device used in substations and distribution power grid. It is designed to safeguard distribution transformers, electrical panels, and cables from lightning and switching overvoltages.

By adopting advanced ZnO varistor technology, the 11kv zinc oxide lighting arrester in substation features excellent non linear characteristics, fast response, and low residual voltage. It ensures reliable overvoltage protection without generating power frequency follow current.

Available with porcelain or silicone rubber housing, the 11kv zinc oxide lighting arrester in substation offers superior hydrophobicity, pollution resistance, and long service life. It is suitable for indoor and outdoor installation in substations, industrial plants, and renewable energy systems.

11kv Zinc Oxide Lighting Arrester In Substation

Product Parameter:

3 to 10 kV Surge Arrester：

Mode	Us	Ur	Uc	U1mA	Vs	VL	Vsw	LD (2ms)	HC (4/10μs)
	kV(r.m.s)			≮kV	≯kV			A	kA
YH5WS-5/15	3	5	4.0	7.5	15.5	13.5	12.8	150	65
YH5WS-10/30	6	10	8.0	14.4	31.0	30	27	150	65
YH5WS-17/50	10	17	13.6	24	51.5	50	45	150	65

Us	System Rated Voltage
Ur	Rated Voltage of Arrester
Uc	Continuous Operating Voltage
U1mA	DC reference voltage at 1 mA
Vs	Steep Current Impulse Residual Voltage;
VL	Lightning Impulse Residual Voltage
Vsw	Switching Impulse Residual Voltage
LD	Long Duration Current Impulse Withstand
HC	High Current Impulse Withstand

11kv Zinc Oxide Lighting Arrester In Substation

Product FAQ:

Q: Why is a 11kv zinc oxide lighting arrester necessary in a substation?

A: Substations are critical points in the electrical distribution network, and equipment such as distribution transformers, medium voltage and low voltage circuit breakers, and busbars are susceptible to damage from transient overvoltages. 11kv zinc oxide lighting arrester divert these surges safely to the ground, preventing insulation breakdown, equipment failure, and potential fire hazards to 11kv substations.

Q: How does a 11kv zinc oxide lighting arrester in substation work?

A: When an overvoltage occurs, the resistance of the zinc oxide varistor decreases, allowing the 11kv zinc oxide lighting arrester to conduct the surge current to the ground. Once the surge dissipates and voltage returns to normal levels, the 11kv zinc oxide lighting arrester's resistance increases, effectively blocking any further current flow and protecting the connected equipment.

Q: How should an 11kV zinc oxide lightning arrester be installed in a substation?

A: Installation a set of 11kv zinc oxide lighting arrester in substation should follow manufacturer guidelines and industry standards. Key considerations include as the below:

Proper Grounding: Ensure a low resistance path to ground to facilitate effective surge dissipation.

Correct Orientation: Install the 11kv zinc oxide lighting arrester in the correct polarity to ensure proper operation.

Clearance: Maintain adequate spacing to prevent flashover and ensure safety.

Accessibility: Position for easy inspection and maintenance.

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