Composite Metal Oxide Surge Protectors without Gaps of Low Voltage
Description:
Metal oxide 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.
Applications:
1. Distribution networks
2. Transmission line
3. Substation
4. Railway power station
5. Alternator and electromotor
Specifications:
| Type | YH5W5-10/27 |
| Rated voltage---------kV | 10 |
| MOCV ----------------kV | 8.4 |
| Nominal Current-------kV | 5 |
| Residual voltage of steep impulse----at 5kA(kV) | 29.5 |
| 8/20µS Residual voltage of lightning impulse current kV(Peak value)-----at 5kA(kV) | 27 |
| Residual voltage of switching impulse current kV (peak value)----at 1kA (kV) | / |
| 1mA D.C reference voltage (kV) | 14.2 |
| Line discharge level | 1 |
| 2mS long duration impulse current A | 250 |
| 4/10µS High current impulse kA | 65 |
| Lightning impulse withstand kV | 85 |
| Power frequency voltage withstand(dry/wet)kV | 28 |
| 0.1S TOV--------------kV | 12 |
| 1S TOV----------------kV | 11.5 |
| 10S TOV---------------kV | 11 |
| 1200S TOV-------------kV | 10 |
| Creepage distance ----mm | 434 |
| Material employed in series non-linear resistor | Zinc Oxide |
Working condition:
1) Environment temperature: -40--+40 degree
2) altitude: <1000m
3) 48HZ
4) Power frequency voltage should not be more than continuous running voltag
5) Max wind speed should be less than 35m/s
6) Earthquake intensity should be less than 7 degree
7) If used in contamination area, should be noted in advance.
