摘要
为在我国开展冲击电压测量基准传递工作,提高冲击电压测量准确度水平,本文研制了一台250kV标准冲击分压器,并讨论了分压器方波响应及分压比等特性校验的正确方法。经特性校验和国际对比试验证明,该分压器具有优良的技术性能,其部分响应时间T_α≈3ns,过冲β≈9%,与加拿大国家研究委员会(NRC)的标准分压器的冲击测量结果相差+0.51%(全波)及+0.7%(截波),达到了国际同类分压器的先进水平。该分压器现已作为标准测量设备在我国国家高电压计量站投入使用。
In order to carry out transference of inpulse voltage measurement standard and improve accuracy of impulse voltage measurements, a 250kV standard impulse voltage divider is developed and correct calibration methods for the step-response and ratio of a voltage divider are discussed. The performance calibrations and the international comparative tests verify that this divider has excellent performances, its partial response time T_α is 3.0ns and its overshoot β is 9%, and the differences of impulse measurements from the standard divider of NRC are +0.51% (full impulse) and +0.7% (chopped impulse), so it reaches the advanced level of similar dividers in the world. Now, this divider is already put in service at the Chinese National High Voltage Metrological Station as a standard measuring device.
出处
《高电压技术》
EI
CAS
CSCD
北大核心
1991年第1期1-6,共6页
High Voltage Engineering
关键词
冲击电压
分压器
研制
high voltage measurement impulse voltage divider calibration of a voltage divider
