HY5WX-17/50 Metal-oxide Surge Arrester
General description of surge arresters
The HY5WX-17/50 metal-oxide surge arrester (MOA) uses zinc-oxide varistors (MOV) as the core element; its non-linear V-I characteristics greatly improve the protective performance under steep-front, lightning and switching waves compared with conventional silicon-carbide arresters. The zinc-oxide varistor has good steep-front response, no delay to steep-front voltage, low switching residual voltage and no discharge dispersion, overcoming the shortcomings of silicon-carbide arresters such as high steep-front discharge voltage caused by discharge delay and large dispersion of switching-wave discharge voltage, thus greatly increasing the protection margins under steep-front and switching waves. In terms of insulation coordination, the protection margins under steep-front, lightning and switching waves can be made nearly identical, providing reliable protection for power equipment. Metal-oxide surge arresters can also absorb lightning overvoltage, switching overvoltage and power-frequency temporary overvoltage.
The polymer-housed metal-oxide surge arrester is formed by one-piece silicone-rubber moulding, with good sealing and explosion-proof performance, pollution resistance without cleaning, reduced wet flashover in foggy weather, resistance to electrical erosion and ageing, small size, light weight and impact resistance; it is easy to install and maintain, and is the replacement for porcelain-housed arresters. This model is of line-type construction and is used for overvoltage protection of overhead transmission lines.
Product series of metal-oxide surge arresters
Complete type designation
Product Overview
The HY5WX-17/50 polymer-housed metal-oxide surge arrester has a rated voltage of 17 kV and a lightning impulse residual voltage of 50 kV; it is of line-type construction and is used for overvoltage protection of 10 kV overhead transmission lines, limiting lightning and switching overvoltages and protecting line insulation equipment for safe operation. For the detailed technical parameters of the HY5WX-17/50 metal-oxide surge arrester, please refer to the technical data of this series given in the table below.
Technical parameters of related models in this series (0.22 kV-10 kV)
('| Voltage class | Place of use | Nominal system voltage(kV)r.m.s. | National standard type of arrester | Rated voltage of arrester(kV)r.m.s. | Gapless arrester | Arrester with gap | Residual voltage(kV)Peak (not more than) | 2000 | 4/10 | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Continuous operating voltage of arrester(kV)r.m.s. | DC 1 mA reference voltage(kV)not less than | 0.75Max. leakage at times the DC reference voltage(uA) | Power-frequency discharge voltage(kV)r.m.s. not less than | 1.2-50Impulse discharge voltage(kV)Peak not more than | Max. conducting current(uA) | 8/20Under lightning impulse current | 30/36Under switching impulse current | 1/4Under steep-front impulse current | usRectangular-wave current carrying capacity(A) | High-current withstand capability(kA) | |||||
| Low voltage | Distribution / motor type | 0.22 | HY1.5W-0.28/1.3 | 0.28 | 0.24 | 0.6 | 50 | - | - | - | 1.3 | 、 | 、 | 0 | 25 |
| 0.38 | HY1.5W-0.5/2.6 | 0.5 | 0.42 | 1.2 | 50 | . | . | - | 2.6 | 、 | . | - | 25 | ||
| 0.66* | HY2.5WD-1.3/3.6 | 1.3 | 0.95 | 1.8 | 50 | - | - | - | 3.6 | - | - | - | 40 | ||
| 1.14* | HY2.5WD-2.6/7.2 | 2.6 | 1.9 | 3.6 | 50 | - | - | - | 7.2 | - | - | - | 40 | ||
| 3kV10kV6kV | Distribution type | 3 | HY5WS-3.8/15 | 3.8 | 2.0 | 7.5 | 50 | - | - | - | 15.0 | 12.8 | 17.3 | 17.3 | 40 |
| 3 | HY5WS-5/15 | 5 | 4.0 | 7.5 | 50 | - | - | - | 15.0 | 12.8 | 17.3 | 17.3 | 40 | ||
| 3 | HY5CS-3.8/13.5 | 3.8 | - | - | - | 9.0 | 13.5 | 20 | 13.5 | 11.4 | 15.0 | 15.0 | 40 | ||
| Station type | 3 | HY5WZ-3.5/13.5 | 3.8 | 2.0 | 7.2 | 50 | - | - | - | 13.5 | 11.5 | 15.5 | 15.5 | 65 | |
| 3 | HY5WZ-5/12.0 | 5 | 4.0 | 7.2 | 50 | - | - | - | 13.5 | 11.5 | 15.5 | 15.5 | 65 | ||
| 3 | HY5CZ-3.8/12.0 | 3.8 | - | - | - | 8.0 | 12.0 | 20 | 12.0 | 10.2 | 13.5 | 13.5 | 65 | ||
| Capacitor type | 3 | HY5WR-3.8/13.5 | 3.8 | 2.0 | 7.2 | 50 | - | - | - | 13.5 | 10.5 | - | - | 65 | |
| 3 | HY5WR-5/13.5 | 5 | 4.0 | 7.2 | 50 | - | - | - | 13.5 | 10.5 | - | - | 65 | ||
| 3 | HY5CR-3.8/12.0 | 3.8 | - | - | - | 8.0 | 12.0 | 20 | 12.0 | 9.6 | - | - | 65 | ||
| Generator type | 3.15* | HY5WD-3.8/9.5 | 3.8 | 2.0 | 5.7 | 50 | - | - | - | 9.5 | 7.6 | 10.7 | 10.7 | 65 | |
| 3.15* | HY5WD-4/9.5 | 4 | 3.15 | 5.7 | 50 | - | - | - | 9.5 | 7.6 | 10.7 | 10.7 | 65 | ||
| 3.15* | HY5CD-3.8/8.6 | 3.8 | - | - | - | 7.5 | 8.6 | 20 | 8.6 | 6.9 | 9.8 | 9.8 | 65 | ||
| Motor type | 3.15* | HY2.5WD-3.8/9.5 | 3.8 | 2.0 | 5.7 | 50 | - | - | - | 9.5 | 7.6 | 10.7 | 10.7 | 65 | |
| 3.15* | HY2.5WD-4/9.5 | 4 | 3.15 | 5.7 | 50 | - | - | - | 9.5 | 7.6 | 10.7 | 10.7 | 65 | ||
| 3.15* | HY2.5CD-3.8/8.6 | 3.8 | - | - | - | 7.5 | 8.6 | 20 | 8.6 | 6.9 | 9.8 | 9.8 | 65 | ||
| Neutral-point type | 3.15* | HY1.5W-2.4/6 | 2.4 | 1.9 | 3.4 | 50 | - | - | - | 6.0 | 5.0 | - | - | 65 | |
| Distribution / station type | 6 | HY5WS-7.6/30 | 7.6 | 4.0 | 15.0 | 50 | - | - | - | 30.0 | 25.6 | 34.6 | 34.6 | 40 | |
| 6 | HY5WS-10/30 | 10 | 8.0 | 15.0 | 50 | - | - | - | 30.0 | 25.6 | 34.6 | 34.6 | 40 | ||
| 6 | HY5CS-7.6/27 | 7.6 | - | - | - | 16.0 | 27.0 | 20 | 27.0 | 22.5 | 30.0 | 30.0 | 40 | ||
| 6 | HY5WZ-7.6/27 | 7.6 | 4.0 | 14.4 | 50 | - | - | - | 27.0 | 23.0 | 31.0 | 31.0 | 65 | ||
| 6 | HY5WZ-10/27 | 10 | 8.0 | 14.4 | 50 | - | - | - | 27.0 | 23.0 | 31.0 | 31.0 | 65 | ||
| 6 | HY5CZ-7.6/24 | 7.6 | - | - | - | 16.0 | 24.0 | 20 | 24.0 | 20.4 | 27.0 | 27.0 | 65 | ||
| Capacitor / generator type | 6 | HY5WR-7.6/27 | 7.6 | 4.0 | 14.4 | 50 | - | - | - | 27.0 | 21.0 | - | - | 65 | |
| 6 | HY5WR-10/27 | 10 | 8.0 | 14.4 | 50 | - | - | - | 27.0 | 21.0 | - | - | 65 | ||
| 6 | HY5CR-7.6/24 | 7.6 | - | - | - | 16.0 | 24.0 | 20 | 24.0 | 19.5 | - | - | 65 | ||
| 6.3* | HY5WD-7.6/18.7 | 7.6 | 4.0 | 11.2 | 50 | - | - | - | 18.7 | 15.0 | 21.0 | 21.0 | 65 | ||
| 6.3* | HY5WD-8/18.7 | 8 | 6.3 | 11.2 | 50 | - | - | - | 18.7 | 15.0 | 21.0 | 21.0 | 65 | ||
| 6.3* | HY5CD-7.6/17 | 7.6 | - | - | - | 15.0 | 17.0 | 20 | 17.0 | 13.8 | 19.6 | 19.6 | 65 | ||
| Motor / neutral-point type | 6.3* | HY2.5WD-7.6/18.7 | 7.6 | 4.0 | 11.2 | 50 | - | - | - | 18.7 | 15.0 | 21.0 | 21.0 | 65 | |
| 6.3* | HY2.5WD-8/18.7 | 8 | 6.3 | 11.2 | 50 | - | - | - | 18.7 | 15.0 | 21.0 | 21.0 | 65 | ||
| 6.3* | HY2.5CD-7.6/17 | 7.6 | - | - | - | 15.0 | 17.0 | - | 17.0 | 13.8 | 19.6 | 19.6 | 65 | ||
| 6.3* | HY1.5W-4.8/12 | 4.8 | 3.8 | 6.8 | 50 | - | - | - | 12.0 | 10.0 | - | - | 65 | ||
| Distribution type | 10 | HY5WS-12.7/50 | 12.7 | 6.6 | 25 | 50 | - | - | - | 50 | 42.5 | 57.5 | 57.5 | 40 | |
| 10 | HY5WS-17/50 | 17 | 13.6 | 25 | 50 | 26.0 | 45 | 20 | 50 | 42.5 | 57.5 | 57.5 | 40 | ||
| 10 | HY5CS-12.7/45 | 12.7 | - | - | - | - | - | - | 45 | 38.4 | 51.0 | 51.0 | 40 | ||
| Station type | 10 | HY5WZ-12.7/45 | 12.7 | 6.6 | 24 | 50 | - | - | - | 45 | 38.3 | 51.8 | 51.8 | 65 | |
| 10 | HY5WZ-17/45 | 17 | 13.6 | 24 | 50 | - | - | - | 45 | 38.3 | 51.8 | 51.8 | 65 | ||
| 10 | HY5CS-12.7/41 | 12.7 | - | - | - | 26.0 | 41 | 20 | 41 | 35.0 | 46.0 | 46.0 | 65 | ||
| - | 10 | HY5WR-12.7/46 | 12.7 | 6.6 | 24 | 50 | - | - | - | 46 | 35.0 | - | - | 65 | |
| Capacitor / generator type | 10 | HY5WR-17/46 | 17 | 13.6 | 24 | 50 | - | - | - | 46 | 35.0 | - | - | 65 | |
| 10 | HY5CR-12.7/41 | 12.7 | - | - | - | 26.0 | 41 | 20 | 41 | 33.0 | - | - | 65 | ||
| 10.5* | HY5WD-12.7/31 | 12.7 | 6.6 | 18.6 | 50 | - | - | - | 31 | 25 | 34.7 | 34.7 | 65 | ||
| 10.5* | HY5WD-13.5/31 | 13.5 | 10.5 | 18.6 | 50 | - | - | - | 31 | 25 | 34.7 | 34.7 | 65 | ||
| 10.5* | HY5CD-12.7/28 | 12.7 | - | - | - | 25.0 | 25.0 | 20 | 28 | 22.5 | 32.0 | 32.0 | 65 | ||
| 13.8* | HY5WD-17.5/40 | 17.5 | 13.6 | 24.4 | 50 | - | - | - | 40.0 | 32.0 | 44.8 | 44.8 | 65 | ||
| 15.75* | HY5WD-20/45 | 20.0 | 15.75 | 28.0 | 50 | - | - | - | 45.0 | 36.0 | 50.4 | 50.4 | 65 | ||
| 18.0* | HY5WD-23/51 | 23.0 | 18.0 | 31.9 | 50 | - | - | - | 51.0 | 40.8 | 57.2 | 57.2 | 65 | ||
| 20.0* | HY5WD-25/56.2 | 25.0 | 20.0 | 35.4 | 50 | - | - | - | 56.2 | 45.0 | 62.9 | 62.9 | 65 | ||
| Motor type | 10.5* | HY2.5WD-12.7/31 | 12.7 | 6.6 | 18.6 | 50 | - | - | - | 31 | 25 | 34.7 | 34.7 | 65 | |
| 10.5* | HY2.5WD-13.5/31 | 13.5 | 10.5 | 18.6 | 50 | - | - | - | 31 | 25 | 34.7 | 34.7 | 65 | ||
| 10.5* | HY2.5CD-12.7/28 | 12.7 | - | - | - | 25.0 | 28.0 | 20 | 28 | 22.5 | 32.0 | 32.0 | 65 |
Outline dimensions
Service Conditions
- Ambient temperature: not higher than +40 ℃ and not lower than -40 ℃;
- Altitude not higher than 2000 m;
- Rated frequency: 50 Hz or 60 Hz;
- The voltage continuously applied to the arrester shall not exceed its continuous operating voltage;
- Max. wind speed: 35 m/s;
- Seismic intensity: not greater than degree 7.
Related Products
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