Multi-chamber Arc Blowing Type 35KV Line Protection Device

Model:MLPD35-D
The Multi-chamber Arc Blowing Type 35KV Line Protection Device in the overhead line is characterized in that no special grounding is required, the power frequency freewheeling current can be cut off, the failure rate is low, and the service life is long. The application of the multi-cavity arc blowing lightning protection device plays a key role in the safe and stable operation of the wind farm, and is of great significance to the line operation and maintenance in the wind power aftermarket.

Model:MLPD35-D

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Product Description

The multi-cavity arc blowing lightning protection device in the overhead line is characterized in that no special grounding is required, the power frequency freewheeling current can be cut off, the failure rate is low, and the service life is long. The application of the multi-cavity arc blowing lightning protection device plays a key role in the safe and stable operation of the wind farm, and is of great significance to the line operation and maintenance in the wind power aftermarket.

Specification

1.Highest voltage for equipment can be up to 40.5 kV.
2.Maximum prospective fault current 5.0 kA
3.Lightning discharge capability 2.8 C
4.Installation 1, 2 or 3 pcs per pole
5.Protects from Direct Lightning Strike (DLS)
6.Protects from Back Flashover (BFO)
7.No maintenance is required

Usage and Expected Lifespan

This device is designed to protect power supply networks from the consequences of either direct lightning strikes or induced over voltages. Indented to be installed along the protected line, it works perfectly on distribution lines with the highest voltage of equipment up to 40.5 kV.
The expected lifespan is up to decades.

Operational Principle

MLPD35-D can easily be adapted to any cross-arm or pole configuration. This is possible due to different attaching solutions and accessories available.

Product Parameter (Specification)

Description	Unit	Value.
Electrical line parameters
Highest voltage for equipment ⑴	kV	40.5
Maximum prospective fault current	kA	5
External air gap	mm	110-180
50% flashover voltage	KV	230
Power frequency withstand voltage ⑵	kV (wet/dry)	65/80
Lightning parameters
Lightning discharge capability (200 μs) ⑶	C	2.8
High current impulse (4/10 μs)	KA	65
Maximum quenching lightning current,	kA	20 (8/50µs)
Minimum withstand amount of operations		10
General Parameters
Additional power losses on the line	%	0
Average expected lifespan	years	30
UV resistance ⑷	h	1000
Weight	kg	5.6
Maintenance		1 visual verification per year

⑴ According to IEC 60038, ⑵ According to IEC 60071-1, ⑶ According to IEC 60099-8, ⑷ According to ISO 4892-2, method A, IEC 62217

Size

Installation

Pin/post/pin-post

Suspension insulation

Tension insulation

Horizontal post insulation

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