YH10WZ-204/532 220 kV Power Station Type Zinc Oxide Surge Arrester
The YH10WZ-204/532 220kV Power Station Type Zinc Oxide Surge Arrester is designed to protect high-voltage equipment in 220kV substations and transmission systems from lightning and switching overvoltages. It uses zinc oxide varistor elements to limit transient voltage and discharge surge energy, helping protect transformers, switchgear, and other critical electrical equipment. The composite sealed construction provides reliable insulation and environmental resistance, making the arrester suitable for long-term outdoor operation in demanding power system applications.
Get a QuoteOverview
The YH10WZ-204/532 Zinc Oxide Surge Arrester is designed for 220kV power systems, providing reliable protection against lightning and switching overvoltages. It helps limit transient voltage surges and reduce electrical stress on high-voltage equipment, supporting stable and continuous operation of the power network.
The arrester is suitable for 220kV substations, transmission lines, and other high-voltage power infrastructure. Its design provides long-term overvoltage protection for critical electrical equipment and helps improve the overall reliability of high-voltage transmission and distribution systems.
Core Technology and Performance Advantages
High-Performance Zinc Oxide Varistor Core
The YH10WZ-204/532 Zinc Oxide Surge Arrester uses zinc oxide resistor elements as the main surge protection component. Their nonlinear electrical characteristics allow the arrester to limit excessive voltage and conduct surge current when a transient overvoltage occurs. This helps reduce voltage stress on transformers, transmission equipment, and other 220kV electrical assets.
Sealed Composite Manufacturing
The arrester is manufactured with controlled production and inspection processes to maintain consistent electrical and mechanical performance. Its molded composite construction and sealed, gap-free housing help prevent moisture and contaminants from entering the internal structure. This design also improves resistance to pollution and supports reliable outdoor operation in demanding environments.
Practical Structural Design
- Removable Terminal Bolts: The detachable terminal connection provides a secure electrical connection while making installation, inspection, and replacement more convenient.
- Hot-Dip Galvanized Base: The galvanized metal base offers good corrosion resistance and coating durability. It is designed to maintain mechanical stability during long-term outdoor exposure while allowing easier removal when maintenance is required.
Technical Data
| Item | Unit | Parameter |
| YH10WZ-204/532 | ||
| System Voltage | kV | 220 |
| Rated Voltage | 204 | |
| Continuous Operating Voltage | 159 | |
| Nominal Discharge Current | kA | 10 |
| Voltage UmA | kV | 296 |
| Residual Voltage (Lightning) | 532 | |
| Current Capacity | A | 800 |
| High Current Capacity | kA | 100 |
| Discharge Lightning Current | 50 |
Full Model Parameter List
| Model | System Voltage (kV) | Rated Voltage (kV) | Continuous Operating Voltage (kV) | Nominal Discharge Current (kA) | Voltage UmA (kV) | Residual Voltage (kV) | Current Capacity (A) | High Current Capacity (kA) | Discharge Lightning Current(kA) |
| HYSWZ-5/13.5 | 3 | 50 | 4 | 5 | 7.2 | 13.5 | 200 | 65 | 50 |
| HYSWZ-5/13.5 | 6 | 10 | 8 | 14.4 | 27 | ||||
| HYSWZ-17/45 | 10 | 17 | 13.6 | 24 | 45 | ||||
| HYSWZ-24/66 | 20 | 24 | 20.8 | 37 | 66 | ||||
| HYSWZ-34/85 | 34 | 27.2 | 48 | 85 | |||||
| HYSWZ-51/134 | 35 | 51 | 40.8 | 73 | 134 | 400 | |||
| HY10WZ-90/235 | 66 | 90 | 72.5 | 10 | 130 | 235 | 600 | 100 | |
| HY10WZ-96/250 | 96 | 75 | 140 | 250 | |||||
| HY10WZ-102/266 | 110 | 102 | 79.6 | 148 | 266 | ||||
| HY10WZ-108/281 | 108 | 84 | 157 | 281 | |||||
| HY10WZ-204/532 | 220 | 204 | 159 | 296 | 532 | 800 | |||
| HY10WZ-216/562 | 216 | 168.5 | 314 | 562 |
Applications and Value
The YH10WZ-204/532 Zinc Oxide Surge Arrester is designed for 220kV power systems and provides overvoltage protection for critical high-voltage equipment. It can be installed in substations and transmission networks to help protect power transformers, transmission lines, and other electrical equipment from lightning and switching surges.
By limiting transient overvoltages and diverting surge energy away from protected equipment, the arrester helps reduce insulation stress and the risk of overvoltage-related failures. Its robust construction and controlled manufacturing process support stable long-term operation, making it a suitable solution for 220kV transmission and substation applications where reliable surge protection is required.
