34/85 kV European-style surge arrester (20 kV)
Keywords: High- and low-voltage complete sets – packaged substations – ring main units
Category:
Contact Us
Product Description
Product Overview
● Rear-plug surge arresters, when connected to a front plug or an additional rear plug, provide overvoltage protection for electrical equipment.
● The surge arresters used in ungrounded neutral systems for transformers (18/20 kV) are: ZRYH5WZ-32/85 (substation type) and ZRYH5WX-34/90 (line type).
● In the transformer neutral grounding system (12/20 kV), the surge arresters used are of the following models: YH5WZ-26/66 (substation type) and YH5WZ32/85 (line type).
Electrical Performance
|
Project |
Unit |
YH5WZ-26/66 specifications |
YH5WZ-32/85 specifications |
YH5WX-34/90 specifications |
HY5WZ-34/85 Specifications |
|
System Nominal Voltage |
kilovolt |
20 |
20 |
20 |
20 |
|
Arrester rated voltage |
kilovolt |
26 |
32 |
34 |
34 |
|
Continuous Operating Voltage |
kilovolt |
20.8 |
25.6 |
27.2 |
27.2 |
|
DC 1 mA Reference Voltage |
≥kV |
37 |
47 |
50 |
48 |
|
Residual voltage of steep-wave impulse |
≤kV |
76 |
95 |
104 |
95 |
|
Lightning Impulse Residual Voltage |
≤kV |
66 |
85 |
90 |
85 |
|
Switching impulse residual voltage |
≤kV |
56 |
75 |
80 |
75 |
|
Square-wave impulse withstand |
A |
150 |
150 |
150 |
200 |
|
High-current surge withstand |
kA |
65 |
65 |
65 |
65 |
Contact Us
Address: No. 26, Tuan Shan East Road, Economic Development Zone, Lishui District, Nanjing City, Jiangsu Province
Friendly Links
Copyright © 2023 Nanjing Zhengrui Power Technology Co., Ltd. All Rights Reserved. Website Development:China Enterprise Dynamics Nanjing SEO
