66kV tank arrester
Metal tank arresters are GIS supporting products. Generally, the tank arrester is installed at the transformer end where the GIS bus and GS pipeline are directly connected to the transformer. In terms of electrical parameters, the tank arrester is the same as the porcelain sleeve arrester. The structure is that the zinc oxide resistor core is installed in a closed metal cylinder and filled with SF6 insulating gas. Due to the high insulation characteristics of SF6 insulating gas, the insulation distance is greatly reduced, and the equipment size is greatly reduced from the surface, which is a single simple structure.
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66kV tank arrester
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Technical parameters and dimensions of typical products of 66kV tank type gapless metal oxide surge arrester for power station
| Nominal system voltage Un | Product Model Type | Rated voltage Ur | Continuous operating voltage Uc | DC reference voltage U1mA | Power frequency reference voltage Uref | Residual pressure not greater than kVp | 2ms square wave current A | Outlet mode | Structure | Total mass | ||
| kVr.m.s | kVr.m.s | kVr.m.s | kV | kVr.m.s | 30/60μs | 8/20μs | 1 μs steep wave | (mm/kV) | (kg) | |||
| 66 | Y10WFF-84/221 | 84 | 67.2 | 121 | 84 | 188 | 221 | 248 | 600,800* | Top outlet Side outlet |
Single-phase single tank, can be installed upright, horizontally and upside down | 300 |
| Y10WFF-90/235 | 90 | 72.5 | 130 | 90 | 201 | 235 | 270 | 600,800 | Three-phase common tank, can be installed upright, horizontally and upside down | 300 | ||
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