Specifications

3 surge arresters/unit
New type surge arresters
Limit overvoltage between phases
High capacity ZNO varistor as main component

35KV Three Phases Surge Arresters for Lightning Protection

 

System rated voltage(KV)	Protector rated voltage(KV)	Wiring method	MCOV(KV)	D.C U1Ma≥KV	Power frequency reference voltage ≥KV	Residual voltage of nominal discharge current     ≤KV	2ms Rectangular impulse current withstand ≥KA
35	51	phase- phase	40.8	88.0	59.0	150	200
		phase- earth		73.0	51.0	134

 

Normal service conditions:

1.The ambient air temperature is no higher than +40 degree. no lower than -40 degree.

2.The altitude above sea level does not exceed 2000m

3.Power frequency 48Hz~62Hz

4.Maximum wind speed does not exceed 35m/s

5.The earthquake intensity does not exceed 7 degrees

6.The voltage that long-time exerted shouldn't exceed its Max MCOV

 

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