Transformer respirator silicone and oil level online monitoring alarm and monitoring method

Abstract

The invention discloses a silica gel and oil level on-line monitoring alarm for a transformer respirator and a monitoring method. The breathing pipe is connected, and the left branch pipe of the three-way pipe is connected with the air outlet of the hot air blower. The left solenoid valve and the lower solenoid valve are respectively arranged on the left branch pipe and the lower branch pipe. An oil level color sensor is provided on the level pipe through a bracket, a silicone color sensor is provided on one side of the tank body, and a conduit communicating with it is provided on the lower branch pipe, and a temporary breathing mechanism is connected to one end of the conduit. The invention installs a color sensor on the respirator and the oil level pipe to judge whether the color of the silica gel and oil is normal. If the color is abnormal, an abnormal message is sent to the operating personnel, and there is no need to replace the color-changing silica gel.

Description

technical field [0001] The invention relates to the technical field of transformer respirator, in particular to a transformer respirator silicone and oil level online monitoring alarm and monitoring method. Background technique [0002] The transformer respirator is connected to the oil conservator of the transformer through the pipeline, and it is equipped with a desiccant, such as silica gel, which is used to absorb and filter the moisture in the air entering and leaving the transformer oil conservator, slow down the moisture and oxidation of the transformer insulating oil, and keep the transformer insulating oil The quality of the respirator, the performance of the respirator, and the length of the service life will directly affect the reliability of the electrical equipment. Another disadvantage of the traditional main transformer respirator is that when replacing the color-changing silica gel, after the silicone tank is removed, the breathing airflow of the main transfo...

AI Technical Summary

Problems solved by technology

Another disadvantage of the traditional main transformer respirator is that when replacing the color-changing silica gel, after the silicone tank is removed, the breathing airflow of the main transformer is directly communicated with the outside atmosphere, making it easy for moisture and water to invade the main transformer oil through the breathing tube of the main transformer. And changing the hygroscopic agent will cause waste, and it is also easy to pollute the environment

[0003] In the prior art, such as a transformer respirator disclosed in CN201310029094.0 and a new type of main transformer respirator disclosed in CN201520462444.7, its shortcoming is that it depends entirely on the operator to find the equipment within the pre-arranged inspection period. Faults and defects, due to the weather, sometimes the color-changing silica gel in the respirator will change color in advance, and the operator cannot detect it early, causing environmental pollution and equipment failure, and then causing power outages and economic losses

If the transformer is abnormal or the silica gel is not replaced in time, the color of the silica gel will turn pink. If the transformer continues to operate for a long time, it will cause permanent damage to the transformer winding.

The above devices cannot monitor the oil level. If the transformer is short of oil, the oil level indicator will become colorless. If the transformer continues to operate, the transformer will burn out; if the transformer winding runs abnormally, the transformer oil will become darker or black. , will cause damage to the transformer; more importantly, the color-changing silica gel in the above-mentioned prior art has poor adsorption capacity, and frequent replacement of the color-changing silica gel is required, which is labor-intensive, time-consuming and expensive, and affects the stability of power supply

Images