Hangzhou Yongde Electric Appliances Co.,Ltd
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33KV 5KA Polymer Housing Metal Oxide Surge Lightning Arrester for Substation
Brief Description:
Polymer Housed Metal-Oxide Surge Arrester is mainly applicable for protection of the power equipment like transformers against system over-voltages and lightning surges. It is manufactured with excellent voltage-ampere characteristics and high level of reliability and durability. And the arrester is designed and type tested according to IEC60099-4:2004 standard.
YongDe Surge Arresters can be applied to a variety of systems including substation equipment, AC-DC converters, railway power system and power distribution units ranging from 0.25kV to 765kV systems. These surge arresters demonstrate excellent protection properties. YongDe surge arresters incorporate YNR elements (YongDe Non-linear Resistor ZnO Elements) with superior non-linear voltage-current characteristics, high quality and reliability. Metal oxide type surge arresters offer such special features inherent in the gap-less structure, such as a quick response to surge voltage, high energy dissipation capability, safe operation, compactness / lightweight and freedom from pollution.
Main Features:
1. Compact and Lightweight
2. Extremely Safe Pressure Relief Performance
3. Superior Performance against Environmental Contamination
4. Directly Molded Structure
5. Compliance with International Standards(IEC60099-4)
6. Simple Support Structure
7. Manufactured at Advanced ISO-9001 certified facilities
Apply Area:
1. Distribution networks
2. Transmission line
3. Substation
4. Railway power station
5. Alternator and electromotor
Specifications Chart:
| Type | YH5W5-33/88 |
| Rated voltage---------kV | 33 |
| MOCV ----------------kV | 27.5 |
| Nominal Current-------kV | 5 |
| Residual voltage of steep impulse----at 5kA(kV) | 95 |
| 8/20µS Residual voltage of lightning impulse current kV(Peak value)-----at 5kA(kV) | 88 |
| Residual voltage of switching impulse current kV (peak value)----at 1kA (kV) | / |
| 1mA D.C reference voltage (kV) | 46.7 |
| Line discharge level | 1 |
| 2mS long duration impulse current A | 250 |
| 4/10µS High current impulse kA | 65 |
| Lightning impulse withstand kV | 150 |
| Power frequency voltage withstand(dry/wet)kV | 70 |
| 0.1S TOV--------------kV | 39.6 |
| 1S TOV----------------kV | 37.95 |
| 10S TOV---------------kV | 36.3 |
| 1200S TOV-------------kV | 33 |
| Creepage distance ----mm | 1082 |
| Material employed in series non-linear resistor | Zinc Oxide |