| 摘要 |
A fluid sampling apparatus and method for remotely sampling insulating fluid in a high voltage, high amperage electrical switch without de-energizing the switch. The apparatus includes a sampling tube, a supporting structure for the tube, a rack and pinion gear assembly for lowering and raising the tube, and an elongated handle for operating the gear assembly. The fluid sample is collected in a sample bottle fluidly connected to an overflow bottle and a vacuum pump for withdrawing the insulating fluid. The sampling tool is made mostly of electrically insulating plastic. A removing tool for remotely removing a plug from the electrical switch is used. The removing tool comprises a socket, a socket extender, a ratchet wrench attachable to the extender, and two pull cords for remotely operating the wrench.
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