34/85kV European rear-connected arrester (20kV)
The Group has strong product development capabilities and proposes creative design solutions around customer needs to meet the individual needs of customers.
Keywords: high and low voltage complete set-box type substation-ring network cabinet
Classification:
Cable Accessories
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Product Description
Product overview
● The rear plug-in arrester is connected to the front plug or another rear plug to provide overvoltage protection for electrical equipment.
● The types of lightning arresters used in the transformer neutral point ungrounded system (18/20kV) are: ZRYH5WZ-32/85 (power station type) and ZRYH5WX-34/90 (line type).
● The types of lightning arresters used in the transformer neutral grounding system (12/20kV) are: YH5WZ-26/66 (power station type) and YH5WZ32/85 (line type).
Electrical Performance
|
Project |
Unit |
YH5WZ-26/66 parameters |
YH5WZ-32/85 parameters |
YH5WX-34/90 parameters |
HY5WZ-34/85 parameters |
|
Nominal system voltage |
kV |
20 |
20 |
20 |
20 |
|
Rated voltage of lightning arrester |
kV |
26 |
32 |
34 |
34 |
|
Continuous operating voltage |
kV |
20.8 |
25.6 |
27.2 |
27.2 |
|
DC 1mA reference voltage |
≥Kv |
37 |
47 |
50 |
48 |
|
Steep wave shock residual pressure |
|
76 |
95 |
104 |
95 |
|
Lightning impulse residual voltage |
|
66 |
85 |
90 |
85 |
|
Operating impact residual pressure |
|
56 |
75 |
80 |
75 |
|
Square wave shock tolerance |
A |
150 |
150 |
150 |
200 |
|
Large current impact tolerance |
kA |
65 |
65 |
65 |
65 |
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