How Do Professionals Perform Daily Protection And Maintenance Of Electrical Equipment? : (Transformer)

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(1) Check the oil temperature and take oil samples
When performing maintenance on transformers, it is very important to check the oil temperature, and the oil level thermometer is the main tool used. The protection effect of the instrument is very good, and it can generally support outdoor work. There are usually three or four sets of adjustable switches inside the instrument. The oil level thermometer of the transformer then transmits the temperature signal to the display in the main control room. The alarm temperature of the thermometer is set at 85"C, and the tripping temperature is set at 97C. The main goal of taking oil samples is to analyze the oil. It is mainly used to detect the operating status of the transformer, and to check whether its internal reaction is operating normally. Under normal circumstances , the transformer will run for a long time, and for the use of oil samples, it is recommended that it should be replaced every two years at most.

(2) Moisture absorber and gas relay
The moisture absorber and gas relay are important parts of the transformer, so they should be well maintained and maintained. The gas in the transformer breathes through the moisture absorber to remove debris and moisture in the air and maintain the dielectric strength of the transformer oil in the transformer. Transformer silica gel is blue when dry and turns pink after absorbing moisture, which means that the silica gel has lost its moisture absorption performance and must be dried or replaced: Gas relays are oil-immersed transformers and oil-immersed on-load tap-changers. A primary protection device against internal faults. The gas relay is installed on the connecting pipeline between the transformer and the oil conservator. When the internal failure of the transformer causes the oil to decompose to produce gas or cause oil flow impulse, the contacts of the gas relay are activated to connect the designated control circuit and send out a signal in time. Or automatically cut off the transformer