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As an important part of transformer type testing, lightning impulse plays a critical role in the verification of new product specifications and the finalization of insulation structure testing. Due to the high voltage amplitude applied during the lightning impulse test, combined with the steep impul
1. OverviewEpoxy resin-cast dry-type transformers are widely used in various fields such as high-rise buildings, rail transit, steel and chemical industries, offshore wind power, and distributed photovoltaic power generation. This is due to their many advantages, including excellent mechanical stren
During the operation of distribution transformers, various faults may occur with the iron core. The main causes and solutions include the following: 1. Loose Core - Symptoms: The core produces abnormal noise or vibrations, increased noise levels, and possibly local overheating. - Solutio: Open t
The insulation class of dry type transformer is classified based on the heat resistance level of the insulation material, including Class A, Class E, Class B, Class F, and Class H, each of which has its corresponding allowable maximum operating temperature. The specific standards are as follows:
