ISO9001 Distribution Line Composite MOA 10KA 33KV Zinc Oxide Gapless Arrester
A Zinc Oxide Gapless Arrester must withstand continuous power-frequency voltage while discharging transient energy from the system. It prevents excessive voltage across protected equipment and operates in the same environment. Temporary overvoltage (TOV) capability determines the allowable overvoltage and duration an arrester can endure without damage.
- Extended TOV conditions
- Undersized arrester installation
- Lightning surges exceeding duty rating
- Gap degradation in silicone carbide arresters
- Polymer housing deterioration from silicone oil leakage
- Wildlife interference
- Disk aging
Porcelain arresters may fracture after end-of-life events, while polymer arresters may experience side blowouts or disconnector activation.
| Type | Rated Voltage | MCOV(KV) | Maximum Residual Voltage (8/20 Current Impulse kV) | Creepage Distance (mm) | Dry Arcing Distance (mm) |
|---|---|---|---|---|---|
| YH10W-3 | 3 | 2.55 | 7.5-9.2 | 250 | 146 |
| YH10W-6 | 6 | 5.1 | 15.1-18.4 | 250 | 146 |
| YH10W-9 | 9 | 7.65 | 22.6-27.5 | 370 | 178 |
| YH10W-12 | 12 | 10.2 | 30.1-36.5 | 520 | 214 |
| YH10W-15 | 15 | 12.7 | 37.7-46.1 | 650 | 250 |
| YH10W-18 | 18 | 15.3 | 45.2-55.3 | 650 | 250 |
| YH10W-21 | 21 | 17 | 52.7-64.3 | 790 | 284 |
| YH10W-24 | 24 | 19.5 | 60.3-73.5 | 920 | 318 |
| YH10W-27 | 27 | 22 | 67.8-82.6 | 1050 | 356 |
| YH10W-30 | 30 | 24.4 | 75.4-91.6 | 1200 | 392 |
| YH10W-33 | 33 | 26.7 | 82.9-99.5 | 1340 | 428 |
| YH10W-36 | 36 | 29 | 90.4-109.6 | 1340 | 428 |
Our premium Zinc Oxide Gapless Arresters provide optimal protection against high voltage surges in power systems, safeguarding transformers, switchgears, and transmission lines. The elimination of gaps found in conventional arresters ensures superior performance against both normal surges and high-energy transient overvoltages.
- High Energy Handling: Suitable for both high and low severity systems
- Extended Lifespan: Up to 30+ years of reliable operation
- Enhanced Reliability: Resistant to harsh environmental conditions
- Low Maintenance: Minimal upkeep requirements reduce operational costs
- Safety Assurance: Protects both equipment and personnel
- Overhead power lines
- Transformer substations
- High voltage switchgear and control centers
- Power plants (thermal, nuclear, hydroelectric)
- Railway and transportation networks
- Mining operations
Our Zinc Oxide Gapless Arresters deliver reliable surge protection with exceptional energy handling capacity, longevity, and safety features. Engineered for demanding industrial applications, these arresters provide cost-effective protection for critical power distribution equipment. Contact us for technical specifications and customized solutions.
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