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12kV, 24kV, 36kV, Drop Out Lightning Arrester Surge Arrester

12kV, 24kV, 36kV, Drop Out Lightning Arrester Surge Arrester

Additional information

Product Details:

 

Introduction

Drop out surge arresters are MOV based devices that are designed to protect against
the damaging effects of spikes and transients caused by lightning, utility switching, isolation arching, electrical motor cycling, or any other sudden change in the electrical
power flow on incoming AC power lines. Lightning damage, is responsible for a large
percentage of over-voltage occurrences, these are either direct strikes to a line or
induced voltages onto the line. (strikes within 40m of a line). Drop out surge arresters prevent flashover between phases, prevent damage to poles
and protect transformers from lightning damage and surges. Live Line Arresters can
be intelligently placed on lines in problem areas where equipment is consistently
damaged. The placing of Drop out surge arresters has proven to be more cost effective than
improving the insulation of poor performing lines. A spent Drop out surge arrester can
be exchanged for a new unit within minutes with the aid of a link stick and with the
system energized. This eliminates unnecessary outages and lost revenue for the
electrical utility.

 

Main Technical Specification

Model Type Rated Voltage

(kV)

System Highest Voltage

(KV)

MCOV

(KV)

Operation Current (KA) Steep Current Impulse

(KV)

Switching Current Impulse

(KV)

Lightning Current Impulse

(KV)

2000s Square Wave Impulse Current Withstand (A)
DLYH5W-10 10 11 8.4 5 36 30 23 100-250
DLYH10W-10 10 11 8.4 10 36 30 23 250-550
DLYH5W-15 15 17 12.7 5 47.5 38.5 45 100-250
DLYH10W-15 15 17 12.7 10 47.5 38.5 45 250-550
DLYH5W-21 21 22 17 5 66.5 53.9 63 100-250
DLYH10W-21 21 22 17 10 66.5 53.9 63 250-550
DLYH5W-33 33 36 26.8 5 104.5 84.7 99 100-250
DLYH10W-33 33 36 26.8 10 104.5 84.7 99 100-250
DLYH5W-36 36 38 29 5 114 92.4 108 100-250
DLYH10W-36 36 38 29 10 114 92.4 108 250-550

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