Lightning Arrester Metal Oxide

12~42kV metal oxide surge arrester,polimeric gapless,great degree of volt-ampere characteristic of resistance slice

The Metal Oxide Surge Arrester is the most advanced over-voltage protector. It is widely used as protective devices against switching and lightning over voltages in power electrical systems such as power transformers ,distributors,generators, compensation capacitors. Its core component--resistance slice adopts the material including zinc oxide and many kinds of metal oxides, compared with traditional silicon-carbide arrester, its volt-ampere characteristic of resistance slice has been improved to great degree, as well as the current-transmit ability of resistance slice, as a result, the capability of arrester has been improved basically and thoroughly.

12~42kV metal oxide surge arrester

Rated Voltage	12kV	24 kV	36 kV	42 kV
Rated frequency	48~62Hz	48~62Hz	48~62Hz	48~62Hz
Continuous operating voltage	9.6kV	19.2 kV	28.8 kV	33.6 kV
Nominal discharge current	10kA	10kA	10kA	10kA
Power frequency reference voltage	12kV	24 kV	36 kV	42 kV
Lightning impulse residual voltage	36kV	72 kV	108 kV	126 kV
Steep current impulse residual voltage	41.5 kV	82.8 kV	124.2 kV	145 kV
Switching impulse residual voltage	30.6 kV	61.2 kV	91.8 kV	107 kV
Rectangular current withstand 2000μs	250A	250A	250A	250A
High current withstand 4/10μs	100kA	100kA	100kA	100kA
Line discharge class	1	1	1	1
Partial discharge	10pC	10pC	10pC	10pC
Creepage distance	369mm	655mm	894mm	1083mm
Lightning impulse withstand	75kV	125 kV	185 kV	200 kV
Power frequency withstand(wet 1min)	35 kV	55 kV	80 kV	90 kV

Lightning Arrester Metal Oxide