发明名称 |
Insulation testing device for gas insulated apparatus. |
摘要 |
<p>In an insulation testing device for testing insulation characteristics of a gas insulated apparatus (l6), at least one pair of positive and negative polarity impulse voltages each having a duration shorter than a half period of a commercial frequency voltage are applied to the gas insulated apparatus (l6) by a test voltage generator (l0).</p> |
申请公布号 |
EP0252416(A2) |
申请公布日期 |
1988.01.13 |
申请号 |
EP19870109411 |
申请日期 |
1987.06.30 |
申请人 |
HITACHI, LTD. |
发明人 |
YAMAGIWA, TOKIO;ISHIKAWA, TOSHIO |
分类号 |
G01R31/12;G01R31/327;G01R31/333 |
主分类号 |
G01R31/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|