Power Cable Insulator

Lightning Arresters / Surge Arresters

Lightning arresters are manufactured using high quality raw material which is used to protect electrical equipment from medium ang high voltage.

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Application

A lightning arrester / Surge Arrester is a device used on electrical power systems to protect the insulation of transformer and conductors of the system from the damaging effects of lightning. The typical lightning surge arrester has a high-voltage terminal and a ground terminal. When a lightning surge (or switching surge, which is very similar) travels along the power line to the arrester, the current from the surge is diverted through the arrestor, in to earth.

Construction

Our lightning surge arresters are Gapless metal-oxide type, consist of Zinc-oxide Varistors, FRP Core and Silicone Housing.

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Lightning Surge Arresters Accessories

S. No. ITEM QTY.
1) Disconnector 1 No.
2) Mounting Bracket 1 No.

Technical Parameters

SR.NO PARAMETERS 11 kV 22 kV 33kV
1 HIGHEST SYSTEM VOLTAGE 12kV(r.m.s) 24kV(r.m.s) 36kV(r.m.s)
2 RATED FREQUENCY 50Hz 50Hz 50Hz
3 NOMINAL DISCHARGE CURRENT 5kA 5kA 5kA
4 MAXIMUM CONTINOUS OPERATING VOLTAGE 7.56 kV(r.m.s) 15 kV(r.m.s) 25kV(r.m.s)
5 PARTIAL DISCHARGE IN PICO COULOMB-pC LESS THAN 10 pC LESS THAN 10 pC LESS THAN 10 pC
6 LIGHTNING IMPULSE PROTECTION LEVEL 75 kVp 150 kVp 170 kVp
7 HIGH CURRENT IMPULSE WITH STAND AT 4/10 μs 65kV 65kV 65kV
8 ONE MINUTE POWER FREQUENCY WITH STAND VOLTAGE OF HOUSING. 28 kV(r.m.s) 50 kV(r.m.s) 70 kV(r.m.s)