Porcelain Housed Metal-oxide Surge Arrester With series Gaps 5KA

Main Parameter:
 

Type	MOA Rated voltage	Power frequency discharge voltage	1.2/*0 μs Impulse discharge voltage<=	8/*0 μs Lightning impulse residual voltage<=	2ms Rectangular current impulse withstand	4/*0 μs High current impulse withstand
	KV(rms)	KV(rms)	KV(crest)	KV(crest)	A	KA(crest)
Y5C**4	*4	*0	*2	*2	**0	*5

 Creepage Distance:**0mm
                                                            
Application:
 
The ZnO arrester is mainly used to protect distribution transformer,cable connector and electrical equipment in transformer substation from being damaged by lightning impulse overvoltage and switching overvoltage.
 
 
Technical Performance:
 
The technical performance of arresters is conformed with the technical standard of GB*********0,IEC******4 and EC*****9/CDV.
 
 
Normal service conditions:
 
1.The ambient temperature is not high than **0 celsius and not lower than **0 celsius.
2.The altitude above sea level do not exceed ********0m.(Altiplano area should be indicated when order.)
3.The frequency in AC system is *0Hz or *0Hz.
4.Power frequency voltage which has been bearing on arrester for a long time do not exceed continuous operating voltage.
5.Max. wind speed do not exceed *5m/s.
6.Apply to the area where earthquake intensity is not exceed 8 degree.
7.The filthy area should be indicated before.
 
 
Advantage:
 
1.Large discharging current and little leakage current.
2.No continuous current and low current impulse residual voltage.
3.Good performance on thermal stability,arc-extinguishing and anti-pollution.
4.Quick reaction.                                                               
5.Withstanding multiple lightning overvoltage and switching overvoltage that protect power transmission equipment from being damaged by it.