Hengfengyou transformer news-HENGFENGYOU TRANSFORMER

2022-09-06

Hengfengyou Transformer won the bid for the State Grid Transformer Project

A few days ago, Hengfengyou Transformer Co., Ltd. received an order of 31.88 million yuan (oil-immersed transformer products) in the second batch of bidding projects for the primary equipment of the main network of the St

2022-08-31

Qingdao Hengfengyou 240MVA/220kV first-class energy efficiency three-phase on-load voltage regulating

A few days ago, the 240MVA/220kV first-class energy efficiency three-phase on-load voltage regulating power transformer produced by Qingdao Hengfengyou Electrical Engineering Co., Ltd. successfully passed all the type tes

2022-08-26

What is the cause of transformer loss?

When the primary winding of the transformer is energized, the magnetic flux generated by the coil flows in the iron core. Because the iron core itself is also a conductor, an electric potential will be induced on the plan

2022-08-23

What protection does the main transformer have? Selection principle of main transformer?

differential protection of main transformer: the differential protection can reflect all kinds of inter phase, grounding and inter turn short-circuit faults in the transformer, and can also reflect the short-circuit fault

2022-08-18

What are the maintenance points of transformer operation?

Key points of transformer maintenance 1. Allowable temperature During the operation of the transformer, copper loss and iron loss will occur in its coil and core, and these losses will become heat energy, which will incre

2022-08-18

How to check and maintain 10kV transformer?

As a key part of power system, dry-type transformer can achieve different voltages required by users through step-up or step-down. However, if the transformer fails, the consequences will cause huge losses to users. There

2022-08-12

New power system is an important carrier to promote low-carbon transformation of power industry

The opinions on improving the system, mechanism and policy measures for green and low-carbon energy transformation jointly issued by the national development and Reform Commission and the National Energy Administration co

2022-08-04

What is the difference between rectifier transformer and power transformer

1、 What is rectifier transformer Current conversion is the general term of three working modes: rectification, countercurrent and frequency conversion, among which rectification is the most widely used. The characterist

2022-07-29

Is the transformer dry-type or oil immersed?

Whether to choose oil immersed transformer or dry-type transformer mainly depends on the needs of users and the actual situation. Generally speaking, dry-type transformer and oil immersed transformer are mainly due to the

2022-07-29

Common faults and analysis of oil immersed transformer

The common faults of transformer in operation include the faults of winding, bushing, tap changer, iron core, oil tank and other accessories. 1. Winding fault It mainly includes inter turn short circuit, winding grounding