Lightning arresters are the basis for insulation coordination of various electrical equipment in the power system (transformers, reactors, capacitors, generators, motors, PTs, CTs, circuit breakers, contactors, etc.).
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Lightning arresters are the basis for insulation coordination of various electrical equipment in the power system (transformers, reactors, capacitors, generators, motors, PTs, CTs, circuit breakers, contactors, etc.).
Overview
Lightning arresters are the basis for insulation coordination of various electrical equipment in the power system (transformers, reactors, capacitors, generators, motors, PTs, CTs, circuit breakers, contactors, etc.). The protection performance of lightning arresters determines the internal and external insulation indicators of all electrical equipment in the power system (short-time power frequency withstand voltage, lightning impulse withstand voltage, and operating impulse withstand voltage, etc.).
The core working element of this product is sintered with multi-metal oxide powder mainly composed of zinc oxide, which has excellent nonlinear volt-ampere characteristics, fast steep wave response, and large current capacity. The gapped product adopts a self-blowing gap with a voltage-equalizing irradiation structure, which reduces the dispersion of discharge and has a small impact coefficient.
Model Meaning
| YH | □ | □ | □ | □ | □ | / | □ | □ |
| ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | ↓ | |
| Composite jacket insulation, oxide valve plate | Nominal discharge current (kA) | Structural features: W-no gap, C-series gap, B-parallel gap | Place of use: S-distribution type, Z-power station type, R-capacitor type, D-motor type, T-railway type, L-DC type, X-line type, F-GIS type, O-oil type | Design serial number (customized by the manufacturer) | Rated voltage of lightning arrester (KV) | Maximum residual voltage under nominal discharge current (KV) | Additional characteristic code: G-highland type, W-anti-fouling type, K-seismic type, T-wet heat type |
Main Technical Parameters
The following is a typical parameter table of conventional lightning arresters, arranged in ascending order of voltage level, for the convenience of users to search.
Note:
Each national standard model can be derived into several models of products. Due to space limitations, they are not listed one by one. If users have any questions about the models, they can directly consult our company’s technical department.
In the “System Nominal Voltage” column, the data marked with * represents the rated voltage of the motor corresponding to the motor protection type lightning arrester. In the “Power Frequency Discharge Voltage” column, the data marked with * represents the effective value of the power frequency withstand voltage of high-voltage arresters above 110kV.
Due to the variety of uses and voltage levels, the impulse current value corresponding to the 30/60 operation impulse residual voltage of the lightning arrester is not specifically specified.
The vast majority of products can be equipped with accessories such as disconnectors and counters. If a disconnector is used, add “L”; if a counter is used, add “J” after the model number.
| Voltage level | Place of use | The effective value of the nominal voltage (KV) of the system | National standard model of lightning arrester | Rated voltage of lightning arrester (KV) Effective value | Gapless ightning rester | Gap arrester | Peak residual voltage (kV)(not greater than) | 2000μs square wave current- carying capacity (A) | 4/10 High current endurance capacity (kA) | ||||||
| Continuous operating voltage(kV) oflightning arester Effective value | Dc 1mA reference (KV) Not less than | Maximum leakage (μA) at 0.75 times the DC reference voltage | The effective value of the power frequency discharge voltage (KV)shall not be less than | The peak value of 1.2/50 impulse discharge voltage (KV)shall not be greater than | Maximum conducive curent (μA) | Under the lightning impulse current on August 20th | At 30/60 operating impulse current | Under a quarter of a steep slope impact current | |||||||
| Low pressure | Distribution type | 0.22 | YH1.5W -0.28/13 | 0.28 | 0.24 | 0.6 | 50 | – | – | – | 1.3 | – | – | 75 | 25 |
| Low pressure | Distribution type | 0.38 | YH1.5W -0.5/2.6 | 0.5 | 0.42 | 1.2 | 50 | – | – | – | 2.6 | – | – | 75 | 25 |
| Low pressure | Electric motor type | 0.66* | YH2.5WD -1.3/3.6 | 1.3 | 0.95 | 1.8 | 50 | – | – | – | 3.6 | – | – | 200 | 40 |
| Low pressure | Electric motor type | 1.14* | YH2.5WD -2.6/7.2 | 2.6 | 1.9 | 3.6 | 50 | – | – | – | 7.2 | – | – | 200 | 40 |
| 3KV | Distribution type | 3 | YH5WS -3.8/15 | 3.8 | 2 | 7.5 | 50 | – | – | – | 15 | 12.8 | 17.3 | 75 | 40 |
Main Technical Parameters
| Voltage level | Place of use | The effective value of the nominal voltage(kV) of the system | National standard model of lightning arrester | Rated voltage of lightning arrester(kV) Effective value | Gapless lightning arrester | Gap arrester | Peak residual voltage (kV)(not greater than) | 2000μs square wave current- carrying capacity(A) | 4/10 High current endurance capacity(kA) | ||||||
| Continuous operating voltage (kV)of lightning arrester Effective value | Dc 1mA reference(kV) Not less than | Maximum leakage(μA) at 0.75 times the DC reference voltage | The effective value of the power frequency discharge voltage (kV)shall not be less than | The peak value of 1.2/50 impulse discharge voltage (kV)shall not be greater than | Maximum conductive curent (μA) | Under the lightning impulse current on August 20th | At 30/60 operating impulse current | Under a quarter of a steep slope impact current | |||||||
| 10 | Distribution type | 10 | YH5CS-12.7/45 | 12.7 | – | – | – | 26 | 45 | 20 | 45 | 38.4 | 51 | 75 | 40 |
| 10 | Power station type | 10 | YH5WZ-12.7/45 | 12.7 | 6.6 | 24 | 50 | – | – | – | 45 | 38.3 | 51.8 | 200 | 65 |
| 10 | Power station type | 10 | YH5WZ-17/45 | 17 | 13.6 | 24 | 50 | – | – | – | 45 | 38.3 | 51.8 | 200 | 65 |
| 10 | Power station type | 10 | YH5CZ-12.7/41 | 12.7 | – | – | – | 26 | 41 | 20 | 41 | 35 | 46 | 200 | 65 |
| 10 | Capacitor type | 10 | YH5WR-12.7/46 | 12.7 | 6.6 | 24 | 50 | – | – | – | 46 | 35 | – | 400 | 65 |
| 10 | Capacitor type | 10 | YH5WR-17/46 | 17 | 13.6 | 24 | 50 | – | – | – | 46 | 35 | – | 400 | 65 |
| 10 | Generator | 10 | YH5CR-12.7/41 | 12.7 | – | – | – | 26 | 41 | 20 | 41 | 33 | – | 400 | 65 |
| 10 | Generator | 10.5* | YH5WD-12.7/31 | 12.7 | 6.6 | 18.6 | 50 | – | – | – | 31 | 25 | 34.7 | 400 | 65 |
| 10 | Generator | 10.5* | YH5WD-13.5/31 | 13.5 | 10.5 | 18.6 | 50 | – | – | – | 31 | 25 | 34.7 | 400 | 65 |
| 10 | Generator | 10.5* | YH5CD-12.7/28 | 12.7 | – | – | – | 25 | 28 | 20 | 28 | 22.5 | 32 | 400 | 65 |
| 10 | Generator | 13.8* | YH5WD-17.5/40 | 17.5 | 13.8 | 24.4 | 50 | – | – | 40 | 32 | 44.8 | 400 | 65 | |
| 10 | Generator | 15.75* | YH5WD-20/45 | 20 | 15.75 | 28 | 50 | – | – | – | 45 | 36 | 50.4 | 400 | 65 |
| 10 | Generator | 18.0* | YH5WD-23/51 | 23 | 18 | 31.9 | 50 | – | – | – | 51 | 40.8 | 57.2 | 400 | 65 |
| 10 | Generator | 20.0* | YH5WD-25/56.2 | 25 | 20 | 35.4 | 50 | – | – | – | 56.2 | 45 | 62.9 | 400 | 65 |
| 10 | Motor type | 10.5* | YH2.5WD-12.7/31 | 12.7 | 6.6 | 18.6 | 50 | – | – | – | 31 | 25 | 34.7 | 200 | 65 |
| 10 | Motor type | 10.5* | YH2.5WD-13.5/31 | 13.5 | 10.5 | 18.6 | 50 | – | – | – | 31 | 25 | 34.7 | 200 | 65 |
| 10 | Motor type | 10.5* | YH2.5CD-12.7/28 | 12.7 | – | – | – | 25 | 28 | 20 | 28 | 22.5 | 32 | 200 | 65 |
| 10 | Neutral point type | 10.5* | YH1.5W-8/19 | 8 | 6.4 | 11.4 | 50 | – | – | – | 19 | 15.9 | – | 400 | 65 |
| 10 | Neutral point type | 13.8* | YH1.5W-10.5/23 | 10.5 | 8.4 | 14.9 | 50 | – | – | – | 23 | 19.2 | – | 400 | 65 |
| 10 | Neutral point type | 15.75* | YH1.5W-12/26 | 12 | 9.6 | 17 | 50 | – | – | – | 26 | 21.6 | – | 400 | 65 |
| 10 | Neutral point type | 18.0* | YH1.5W-13.7/29.2 | 13.7 | 11 | 19.5 | 50 | – | – | 29.2 | 24.3 | – | 400 | 65 | |
| 10 | Power station type | 20.0* | YH1.5W-15.2/31.7 | 15.2 | 12.2 | 21.6 | 50 | – | – | – | 31.7 | 26.4 | – | 400 | 65 |
| 35 | Power station type | 35 | YH5WZ-51/134 | 51 | 40.8 | 73 | 50 | – | – | – | 134 | 114 | 154 | 400 | 65 |
| 35 | Capacitor type | 35 | YH5WZ-42/134 | 42 | 23.4 | 73 | 50 | – | – | – | 134 | 114 | 154 | 400 | 65 |
| 35 | Capacitor type | 35 | YH5CZ-42/124 | 42 | – | – | – | 80 | 124 | 20 | 124 | 100 | 143 | 400 | 65 |
| 35 | Line type | 35 | YH5WR-51/134 | 51 | 40.8 | 73 | 50 | – | – | – | 134 | 105 | – | 400 | 65 |
| 35 | Line type | 35 | YH5WR-42/134 | 42 | 23.4 | 73 | 50 | – | – | – | 134 | 105 | – | 400 | 65 |
| 35 | Line type | 35 | YH5CR-42/124 | 42 | – | – | – | 80 | 124 | 20 | 124 | 100 | – | 400 | 65 |
| 35 | Line type | 35 | YH5WX-51/134 | 51 | 40.8 | 73 | 50 | – | – | – | 134 | 114 | 154 | 400 | 65 |
| 35 | Neutral point type | 35 | YH5WX-54/150 | 54 | 43.2 | 77 | 50 | – | – | – | 150 | 128 | 169 | 400 | 65 |
| 35 | Tipo de línea | 35 | YH5CX-42/120 | 42 | – | – | – | 80 | 120 | 20 | 120 | 100 | 138 | 400 | 65 |
| 35 | Tipo de línea | 35 | YH5CX-42/150 | 42 | – | – | – | 80 | 150 | 20 | 150 | 128 | 169 | 400 | 65 |
| 35 | Tipo de punto neutro | 35 | YH1.5W-30/80 | 30 | 24 | 44 | 50 | – | – | – | 80 | 67.5 | – | 400 | 65 |
| Voltage level | Place of use | The effective value of the nominal voltage(kV) of the system | National standard model of lightning arrester | Rated voltage of lightning arrester(kV) Effective value | Gapless lightning arrester | Gap arrester | Peak residual voltage(kV)(not greater than) | 2000μs square wave current- carrying capacity(A) | 4/10 High current endurance capacity (kA) | ||||||
| Continuous operating voltage (kV)of lightning arrester Effective value | Dc 1mA reference(KV) Not less than | Maximum leakage(μA) at 0.75 times the DC reference voltage | The effective value of the power frequency discharge voltage(kV)shall not be less than | The peak value of 1.2/50 impulse discharge voltage (kV)shall not be greater than | Maximum conductive curent (μA) | Under the lightning impulse current on August 20th | At 30/60 operating impulse current | Under a quarter of a steep slope impact current | |||||||
| 66 | Power station type | 66 | YH5WZ-84/221 | 84 | 67.2 | 121 | 50 | – | – | – | 221 | 188 | 254 | 600 | 65 |
| 66 | Power station type | 66 | YH5WZ-90/235 | 90 | 72.5 | 130 | 50 | – | – | – | 235 | 201 | 270 | 600 | 65 |
| 66 | Power station type | 66 | YH10WZ-84/221 | 84 | 67.2 | 121 | 50 | – | – | – | 221 | 188 | 248 | 600 | 100 |
| 66 | Line type | 66 | YH10WZ-90/235 | 90 | 72.5 | 130 | 50 | – | – | – | 235 | 201 | 264 | 600 | 100 |
| 66 | Line type | 66 | YH5WX-96/250 | 96 | 75 | 140 | 50 | – | – | – | 250 | 213 | 288 | 600 | 65 |
| 66 | Line type | 66 | YH5WX-96/275 | 96 | 75 | 154 | 50 | – | – | – | 275 | 234 | 316 | 600 | 65 |
| 110 | Power station type | 110 | YH5WZ-100/260 | 100 | 78 | 145 | 50 | – | – | – | 260 | 221 | 299 | 600 | 65 |
| 110 | Power station type | 110 | YH5WZ-102/266 | 102 | 79.6 | 148 | 50 | – | – | – | 266 | 226 | 305 | 600 | 65 |
| 110 | Power station type | 110 | YH5WZ-108/281 | 108 | 84 | 157 | 50 | – | – | – | 281 | 239 | 323 | 600 | 65 |
| 110 | Power station type | 110 | YH10WZ-100/260 | 100 | 78 | 145 | 50 | – | – | – | 260 | 221 | 291 | 600 | 100 |
| 110 | Power station type | 110 | YH10WZ-102/266 | 102 | 79.6 | 148 | 50 | – | – | – | 266 | 226 | 297 | 600 | 100 |
| 110 | Power station type | 110 | YH10WZ-108/281 | 108 | 84 | 157 | 50 | – | – | – | 281 | 239 | 315 | 600 | 100 |
| 110 | Power station type | 110 | YH5WX-108/281 | 108 | 84 | 157 | 50 | – | – | – | 281 | 239 | 323 | 600 | 65 |
| 110 | Power station type | 110 | YH5WX-108/309 | 108 | 84 | 173 | 50 | – | – | – | 309 | 263 | 348 | 600 | 65 |
| 110 | Line type | 110 | YH10WX-108/281 | 108 | 84 | 157 | 50 | – | – | – | 281 | 239 | 315 | 600 | 100 |
| 110 | Line type | 110 | YH10WX-108/309 | 108 | 84 | 173 | 50 | – | – | – | 309 | 263 | 348 | 600 | 100 |
| 110 | Line type | 110 | YH5CX-90/260 | 90 | – | 130 | 50 | 170* | 525* | – | 260 | 292 | 400 | 65 | |
| 110 | Line type | 110 | YH10CX-90/260 | 90 | 130 | 50 | 170* | 525* | – | 260 | – | 292 | 600 | 100 | |
| 110 | Line type | 110 | YH10CX-96/280 | 96 | 140 | 50 | 170* | 525* | – | 280 | – | 314 | 600 | 100 | |
| 110 | Line type | 110 | YH10CX-102/296 | 102 | – | 148 | 50 | 170* | 525* | – | 296 | – | 332 | 600 | 100 |
| 110 | Line type | 110 | YH1.5W-60/144 | 60 | 48 | 85 | 50 | – | – | – | 144 | 135 | 400 | 65 | |
| 110 | Neutral point type | 110 | YH1.5W-72/186 | 72 | 58 | 103 | 50 | – | – | – | 186 | 174 | – | 400 | 65 |
| 220 | Neutral point type | 220 | YH10WZ-192/500 | 192 | 150 | 280 | 50 | – | – | – | 500 | 426 | 560 | 800 | 100 |
| 220 | Power station type | 220 | YH10WZ-200/520 | 200 | 156 | 290 | 50 | – | – | – | 520 | 442 | 582 | 800 | 100 |
| 220 | Power station type | 220 | YH10WZ-204/532 | 204 | 159 | 296 | 50 | – | – | – | 532 | 452 | 594 | 800 | 100 |
| 220 | Power station type | 220 | YH10WZ-216/562 | 216 | 168.5 | 314 | 50 | – | – | – | 562 | 478 | 630 | 800 | 100 |
| 220 | Power station type | 220 | YH10WX-216/562 | 216 | 168 | 314 | 50 | – | – | – | 562 | 478 | 630 | 600 | 100 |
| 220 | Line type | 220 | YH10WX-216/618 | 216 | 168 | 346 | 50 | – | – | – | 618 | 526 | 693 | 600 | 100 |
| 220 | Line type | 220 | YH10CX-185/520 | 180 | – | 260 | 50 | 340* | 900* | – | 520 | – | 584 | 600 | 100 |
| 220 | Line type | 220 | YH10CX-192/560 | 192 | – | 280 | 50 | 340* | 900* | – | 560 | – | 628 | 600 | 100 |
| 220 | Line type | 220 | YH10CX-204/592 | 204 | – | 296 | 50 | 340* | 900* | – | 592 | – | 664 | 600 | 100 |
| 220 | Neutral point type | 220 | YH1.5W-144/320 | 144 | 116 | 205 | 50 | – | – | – | 320 | 299 | – | 600 | 65 |
| 27.5 | Railway type | 27.5 | YH5WT-42/120 | 42 | 34 | 65 | 50 | – | – | – | 120 | 98 | 138 | 400 | 65 |
| 55 | Railway type | 55 | YH5WT-84/240 | 84 | 68 | 130 | 50 | – | – | – | 240 | 276 | 276 | 400 | 65 |
Dimensions And Mounting Dimensions (mm)
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