Automatic alarm transformer vacuum oil injection device allowing oil level to be monitored in real time

Abstract

The invention provides an automatic alarm transformer vacuum oil injection device allowing oil level to be monitored in real time. According to the device, a support is fixed to the lower portion of a flange plate, and a first reed pipe and a second reed pipe are fixed to the support from top to bottom; a first buoy is located on the lower portion of the first reed pipe and hinged to the support, a second buoy is located on the lower portion of the second reed pipe and hinged to the support, and magnetic pieces are arranged on the first buoy and the second buoy; a sealing rubber gasket is arranged on the lower portion of the flange plate, a first binding post and a second binding post are arranged on the lower portion of the flange plate, the first binding post is internally connected with the first reed pipe through a wire and externally connected with an oil injection outage circuit, and the second binding post is internally connected with the second reed pipe through a wire and externally connected with an oil injection alarm circuit and an outside data display screen. By the adoption of the device, the defect that a transformer core is affected with damp due to low oil level can be effectively overcome, and the service life of a transformer is prolonged; the phenomenon of oil leakage caused by over-high oil level during oil injection can also be prevented, oil consumption of the transformer can be reduced, and damage of oil injection equipment is prevented.

Description

technical field [0001] The invention relates to an electric device, in particular to a vacuum oiling device for real-time monitoring of oil level and automatic alarm for a transformer. Background technique [0002] Vacuum oiling of main transformer is one of the most critical procedures in transformer overhaul and infrastructure work, which directly affects the insulation performance of the transformer. When the main transformer is filled with vacuum oil, the maintenance personnel cannot observe the real oil level inside the transformer, and can only roughly estimate the oil filling position of the transformer based on the oil filling amount and the change of the vacuum gauge. There are often two situations, one is the oil filling level If it is too low, the body of the transformer is not completely immersed in the oil. After the vacuum is released, the air enters the oil tank, and the moisture enters the insulation layer to reduce the performance index of the transformer an...

AI Technical Summary

Problems solved by technology

When the main transformer is filled with vacuum oil, the maintenance personnel cannot observe the real oil level inside the transformer, and can only roughly estimate the oil filling position of the transformer based on the oil filling amount and the change of the vacuum gauge. Two situations often occur, one is the oil filling level If it is too low, the body of the transformer is not completely immersed in the oil. After the vacuum is released, the air enters the oil tank, and moisture enters the insulation layer to reduce the performance index of the transformer and pose a safety hazard; Moreover, the transformer oil enters the vacuum pump, causing unnecessary waste, and in severe cases, it will damage the vacuum pump.

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