| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a tank type vacuum breaker capable of reducing a gas pressure in a pressure tank while assuring insulation performance within the pressure tank. <P>SOLUTION: Partition spacers 47 and 57 of insulation body are provided between a pressure tank 2 and current transformer tanks 44 and 54. The space in which the dry air of insulation gas is sealed up is separated in air tight manner into a first space 10 within the pressure tank 2 and a second space within bushings 45 and 55 and the current transformer tanks 44 and 54. The creepage length on the side of first space 10 of the partition spacers 47 and 57 is set longer than the creepage length on the second space 20 side, and the gas pressure in the first space 10 is set lower than that in the second space 20. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
