The polarity can be defined as the induced voltage direction in the primary windings and the secondary winding. If two transformers can be connected in parallel, then the polarity must be identified for a good connection of the transformer.
This article will introduce a few most common types of MV/HV power substations based on the type of distribution switchgear, which can be seen in every distribution network. There are a number of methods of construction of substations depending on the switchgear type.
The open-circuit test and the short-circuit test are performed on a transformer to determine the equivalent circuit of the transformer, the voltage regulation of the transformer, and efficiency of the transformer.
For the oil-immersed transformer, the transformer oil plays a vital role in insulating and cooling. Therefore, the Acidity Test of Transformer oil is a very essential test for analyzing the oxidation of transformer oil.
The dry-type transformer is a completely stationary solid-state device and it requires less maintenance to provide service with few failures. Unlike liquid-filled transformers, this transformer uses only high-temperature insulation as they are very environmentally safe.
A cast resin transformer is the most important and expensive electrical equipment in a power substation. Therefore, to achieve optimum performance and extend product life, it is best to conduct periodic maintenance checks on your machines. This article will guide you on how to maintain your transformer.