| 摘要 |
<p>PURPOSE:To provide a gas-insulated instrument transformer for ultra high voltage without using a large primary coil or a large iron core. CONSTITUTION:Two gas-insulated instrument transformers VT1 and VT2 are provided on upper and lower sides respectively, and both instrument transformers VT1 and VT2 are joined together in cascade. The upper instrument transformer VT1 is located in an outer container 20, which is charged with a SF6 gas.</p> |
