公开(公告)号：US4200835A

公开(公告)日：1980-04-29

申请号：US910960

申请日：1978-05-30

申请人： Ryoji Anahara ,  Koichi Sato ,  Motoshiro Kaneda ,  Mitsuo Saito

发明人： Ryoji Anahara ,  Koichi Sato ,  Motoshiro Kaneda ,  Mitsuo Saito

IPC分类号： G01R27/02 ,  G01R27/18 ,  G01R31/02 ,  H02H3/17

CPC分类号： G01R31/021 ,  G01R27/025 ,  G01R27/18 ,  H02H3/17

摘要： By introducing a secondary voltage having a lower frequency than the principal voltage in a grounded transmission line system, detecting the current arising from such secondary voltage only and multiplying such current by the magnitude of the secondary voltage a resultant signal is obtained which is proportional to the inverse of the insulation resistance of the system.

摘要翻译： 通过引入具有比接地传输线系统中的主电压低的频率的二次电压，仅检测由这种二次电压产生的电流，并将该电流乘以次级电压的幅度，得到与 系统绝缘电阻的倒数。