Jinli 33kv lightning arrester AC surge protection devices

High Voltage outdoor Gapless Lightning Arrester Surge Arrester 33kV

Metal-oxide

Silicone rubber



High Voltage outdoor Gapless Lightning Arrester Surge Arrester 33kV

Metal oxide arresters are used to limit overvoltages and are widely used in power generation, transmission and transformation power distribution systems to protect the insulation of electrical equipment from overvoltage damage.


Features:

* Excellent protection characteristics

* Large flow capacity

* Power frequency withstand capacity

* Good pollution resistance

* Unique pressure release device

* Good sealing performance

* Aging resistance

Model YH5W-33/81
Rated voltage (kV) 33
Continuous operating voltage (kV) 27
Nominal discharge current (kA) 5
Peak value of residual voltage under steep impulse current (5kA,1/3μs) (kV) ≤92.5
Peak value of residual voltage under lightning impulse current(5kA,8/20μs) (kV) ≤81
Peak value of residual voltage under switching impulse current(250A,30/60μs) (kV) ≤66.5
DC 1mA reference voltage (kV) ≥48
Leakage current at 75% DC 1mA reference voltage (mA) ≤50
Power frequency reference voltage(RMS)  ≥33
Power frequency reference current (peak value)  1
Continuous current (mA)
Full current  600
Breaking capacity (mA) 150μA
Long duration impulse withstand current (A) 400
4/10μs large impulse withstand current, 2 times (kA/time) 65
Action load  Non-uniformity coefficient1.1;Law of charge85%
Power frequency voltage withstand time characteristics  0.1s/1.2Ur;24h/1Ur;
KV rated voltage absorption capacity (kJ/kV) 4.5
Pressure release capability (kA/s) 25/0.2


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