SURGE ARRESTER FORM 60KV TO 245KV

The surge arrester is a zinc oxide surge arrester intended for the protection of distribution networks against overvoltages caused by atmospheric discharges due to lightning, and particularly suitable for areas with high pollution.

Product Detail

Product Tags

Feature

Zinc oxide without spark gap with synthetic cover.
?Varistors have the ability to instantly switch from an insulating state to a conductive state in the event of an overvoltage,
?The composite structure in fiberglass impregnated with epoxy resin ensures the mechanical strength of the stack,
?The outer silicone elastomer shell provides dielectric strength.
Reference standards:IEC 60099-4 - 10 kA,20kA / class 2~4， IEC 60815 - pollution level IV

Performance

Nominal discharge current:10 kA (8/20 wave)
Large amplitude current:100 kA (wave 4/10)
Rated voltage:from 60kV to 216 kV
Creepage line:> 31 mm / kV
(level IV according to IEC 60815)
Energy capacity(mim):4.8 kJ / kV from Uc (wave 4/10)
Long time current(min):600 A (wave 2 ms)
Resistance to short-circuit currents: 31.5 kA / 0.2 s - 600 A / 1 s
?High flow power,
?Lowering of the residual voltage level,
?Minimal Joule losses,
?Stability of characteristics over time
?Simple installation,
?Maintenance free.

Installation conditions

?For indoors and outdoors;
?Ambient air temperature :-40℃～+45℃
?Maximum solar radiation not exceeding 1.1kW/m2;
?Altitude not exceeding 3000m;
?Rated frequency for a.c. system : 48Hz～62Hz;
?Maximum wind velocity not over 40m/s;
?Earthquake intensity not exceeding 8 degree;
?Power-frequency voltage applied continuously between the terminals of the arrester not over exceeding its continuous operating voltage;

Parameters data

Rated voltage	kV	60	72	84	96	108	120	132	144	168	192	204	216
Continuous operating voltage	kV	48	58	67.2	75	84	98	106	115	131	152	160	168
Maximum residual voltage at 5 kA 8/20μs	kV peak	148.6	178.3	208.0	237.8	262.4	291.6	320.8	349.9	408.2	466.6	495.7	524.9
Maximum residual voltage at 10 kA 8/20μs	kV peak	154.8	185.8	216.7	247.7	272.2	302.4	332.6	362.9	423.4	483.8	514.1	544.3
Maximum residual voltage at 20 kA 8/20μs	kV peak	166.6	199.9	233.2	266.6	291.6	324.0	356.4	388.8	453.6	518.4	550.8	583.2
Switching residual voltage at 500A - 30/80μs	kV peak	117.9	141.5	165.1	188.6	212.2	235.8	259.4	283.0	330.1	377.3	400.9	424.4
Steep current impulse residual voltage at 10kA - 1/2,5μs	kV peak	166.5	199.8	233.1	266.4	299.7	333.0	366.3	399.6	466.2	532.8	566.1	599.4