According to the power equipment test regulations, the grounding resistance of transformers below 100kVA is not greater than 10Ω, and the grounding resistance of transformers above 100kVA is not greater than 4Ω. However, due to defects in design and construction technology or damage from external
The microcomputer relay protection tester can test and verify all relays and protection devices. It is an indispensable test equipment for power plants, power grid companies and various power consumption units. It is used to detect switchgear and comprehensive protection devices, using high-speed di
1. Overview of double winding transformerA double-winding transformer is a common power device that uses two independent windings, one of which is used as an input winding and the other as an output winding. The two windings are connected together through a common iron core to realize the transmissi
1. The harm of transformer partial dischargeTransformer is an important equipment in the power system, and its normal operation is of great significance to the safe and reliable operation of the power system. However, during the operation of the transformer, partial discharge will occur. Partial dis
In June this year, the company received several batches of foreign customers, which laid a solid foundation for Huazheng to go global. The recent frequent customer visits have further confirmed the strength of Huazheng and the quality of products, and have also made Huazheng brand more popular in th
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