Line type lightning protection device

This product is suitable for 10kV overhead line, using a unique design of stainless steel circular drainage ring, lightning arrester, adjustable mounting bracket

Commodity name： Line type lightning protection device

Product Details

Principle

This product is suitable for 10kV overhead line, using a unique design of stainless steel circular drainage ring, lightning arrester, adjustable mounting bracket; The drainage ring is connected with the arrester element, and the conductor relatively forms a series external discharge gap with a distance of 40~140mm, under normal conditions, the arrester body does not bear the voltage, under the lightning overvoltage of direct lightning or inductive lightning, the air gap is broken down and discharged, and the arc burns on the drainage ring, releasing the overvoltage energy to the arrester, after the lightning impact, When the power frequency voltage is added to the arrester body, the resistance of the arrester body becomes larger instantly, the passing current arc is suppressed at a low value, the arc voltage drop of the air gap increases, the insulation of the air gap quickly recovers, the arc is extinguished naturally in a very short time, the power frequency continuous current is completely interrupted, and the discharge is stopped.

Structural characteristics

1, the installation bracket is adjustable, which can change the height of the arrester, so as to adjust the discharge gap between the arc ring and the wire, to meet the cooperation with different insulators

2, the arrester body uses high-performance metal oxide resistor, with good nonlinear voltammeter characteristics, release overvoltage sensitive and residual low.

3, due to the isolation of the discharge gap part, it is unnecessary to consider the electrical aging problem under long-term operating voltage.

4, arc ring with open design, old line transformation can be directly put in, so as to facilitate installation.

Technical parameter

Product model	System voltage KV	Rated voltage of arrester kV	Dc 1mA reference voltage kV	Nominal discharge current residual voltage kV	2ms square wave flow capacity A	4/10 Lightning impulse current tolerance
FHY5C-10X-13/40	10	13	20	40	150	65
FHY5C-10X-13/40-H	10	13	20	40	150	65
FHY5C-10X-17/50	10	17	25	50	150	65
FHY5C-10X-17/50-H	10	17	25	50	150	65