这种试验主要被用于测试中高功率的电力或电子技术中采用的元器件或设备(断路器，开关，变压器，绝缘子等等)。
These tests are above all used to test components or equipment employed in electricity or electro-technology of medium and high power (circuit-breakers, switches, transformers, insulators, etc...).
这种强电流能在一瞬间摧毁变压器(像摧毁魁北克水电站的变压器那样)和断路器，同时还能通过弱化金属而腐蚀油气管线。
In an instant, the surges destroy transformers, like HydroQuebec's, and overwhelm circuit breakers. The surges also corrode pipelines by weakening away the metal.
切除空载变压器是真空断路器操作过电压问题最严重的情况。
Interrupting no load transformer is the most serious case in vacuum circuit breaker switching overvoltage.
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