Multi-chamber Arc Blowing Type 10KV Line Protection Device

Model MLPD10-I

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.

product details

Specification

Highest voltage for equipment can be up to 13 kV.

Protects from Induced Overvoltage

No maintenance is required

No special grounding required

Protection against: IOV

Only 1 product per pole is required

Products are installed with phase alternation (А -> B -> C)

Definitely great use and the highest possible reliability

Line Protection Device has been designed to ensure the most effective protection from indirect strokes. This device is able to perform as highly effective lightning protection system, providing secure power network operation in 80% of such issues.

In order to protect sensitive equipment, such as pole-mounted transformers (PMT), conventional metal oxide surge arresters still must be used

Operational Principle

Ensuring a high ability to discharge excessive energy of an overvoltage in the surrounding atmosphere

The induced overvoltage will create an electrical power arc between the terminal electrode of a MLPD and the conductor clamp on a line. First, the arc will be divided into a series of small arcs by a series of discharge chambers, and then quickly extinguished when the oscillating current of the grid exceeds zero.

Make full use of the grounding resistance between two towers, each tower only needs to install one product

It is used for the protection of overhead line induced lightning overvoltage, which is more cost-effective than traditional solutions.

Product Parameter

Description	Unit	Value
Electrical line parameters
Highest voltage for equipment ⑴	kV	13
Maximum prospective fault current	kA	1,5
External air gap	mm	50±10
50% flashover voltage	kV	85
Power frequency withstand voltage ⑵	kV (wet/dry)	20/30
Lightning parameters
Lightning discharge capability (200 μs) ⑶	C	1.0
High current impulse (4/10 μs)	kA	65
Nominal discharge current	kA	20
General Parameters
Additional power losses on the line	%	0
Average expected lifespan	years	20
UV resistance ⑷	h	1000
Weight	kg	1.0
Maintenance		1 visual verification per year