ZnO lightning arrester is one kind of most advanced over-voltage protector at present due to its core components of resistance applying ZnO and other metal oxide to make of comparing with traditional carborundum arrester, it improves greatly V-A charcateristics of resistance,increases the getting through ability of resistance,thereby it brings fundamental,change to features of arrester.
Under normal working voltage.The current passing arrester only A class,when bearing over voltage.The excellent non-linear V-A features of arrester would make effect,the current passing through the arrester increase high to thousands of Ampere instant the arrester is under getting through state,to release over-voltage energy therefore it effective limits the damage to power transmission equipments due to over voltage.
Main technical parameters:
Model Type |
Rated Voltage/kV |
MCOV/kV |
Steep Current Impulse |
Switching Current Impulse |
Lightning Current Impulse |
2000s Square Wave Impulse Current Withstand |
4/10 S High Current Impulse/kV |
HY5W-3 |
3 |
2.55 |
9.5 |
7.7 |
9 |
100 |
65 |
HY5W-6 |
6 |
5.1 |
19.5 |
15.4 |
18 |
100 |
65 |
HY5W-9 |
9 |
7.65 |
28.5 |
23.1 |
27 |
100 |
65 |
HY5W-10 |
10 |
8.4 |
36 |
30 |
23 |
150 |
65 |
HY5W-11 |
11 |
9.4 |
40 |
33 |
30 |
150 |
65 |
HY5W-12 |
12 |
10.2 |
38 |
30.8 |
36 |
100 |
65 |
HY5W-15 |
15 |
12.7 |
47.5 |
38.5 |
45 |
100 |
65 |
HY5W-18 |
18 |
15.3 |
57 |
46.2 |
54 |
100 |
65 |
HY5W-21 |
21 |
17 |
66.5 |
53.9 |
63 |
100 |
65 |
HY5W-24 |
24 |
19.2 |
76 |
61.6 |
72 |
100 |
65 |
HY5W-27 |
27 |
21.9 |
85.5 |
69.3 |
81 |
100 |
65 |
HY5W-30 |
30 |
24.4 |
95 |
76.5 |
90 |
100 |
65 |
HY5W-33 |
33 |
26.8 |
104.5 |
84.7 |
99 |
100 |
65 |
HY5W-36 |
36 |
29 |
114 |
92.4 |
108 |
100 |
65 |
HY5W-42 |
42 |
34.1 |
132.3 |
100.1 |
126 |
100 |
65 |