Lightning Arrester

Short Description:

Lightning Arresters is an important protector in electric power system,which be used to pretect the main electric devices against Over-Voltage.Zinc Oxide Arresters adopts zinc oxide varistors with good volt-ampere characteristic nonlinearity as its core,which show high resistance when system nomal boltage,the current only have microamps level; when over voltage,the current that through zinc oxide varistors run up, can fast release the power of over-voltage,thus limit extent of over-voltage, meanwhile,zinc oxide varistor also have these features of large flow capacity, fast response speed,fast response speed,good protection performance and so on. MOAS of this are designed for export.The perfomance of the arresters meets the requirements of Standard IEC60099-4.

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Features

1.Reliability and excellent protection based on years of experience and expertise in surge protection.

2. Good anti-moisture capability, resistant to pollution.

3. GIS metal oxide surge arrester, composite metal oxide surge arrester and porcelain metal oxide surge arresters are available.

4. Long life and lightweight.

5. Easy installation and maintenance.

6. Good sealing capability to ensure reliable operation.

7. High energy absorption ability.

Application

1.Ambient tempreturature within the range of -45℃ to +40℃

2.Altitude can up to 2000m

3.A.C. voltage frequency 48-62Hz

4.Product Surface temperature no more than 60℃ in the sun

5.Ice thickness in no more than 2cm

6.Maxium wind speed 35m/s

7.Eqrthquake intensity: 7 degree and below

Technical Parameter Of Lightning 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	41.5KV	82.8 kV	124.2 kV	145 kV
Switching impulse residual voltage	30.6KV	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	351mm	655mm	894mm	1083mm
Lightning impulse withstand	75KV	125 kV	185 kV	200 kV
Power frequency withstand(wet 1min)	35KV	55 kV	80 kV	90 kV