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  • The first ±800kV flexible straight-through wall bushing independently developed in China was successfully put into operation

    The first ±800kV flexible straight-through wall bushing independently developed in China was successfully put into operation

    “In the 40 years since the 1980s, we have been subject to foreign control for a long time in terms of key equipment and key technologies of DC power transmission. Today, we finally won this turnaround battle, using the UHV flexible cables made by the Chinese themselves. Straight through the...
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  • What is the difference between oil-type transformers and dry-type transformers?

    What is the difference between oil-type transformers and dry-type transformers?

    1. Different nature 1. Oil-type transformer: a new type of high-performance transformer with more reasonable structure and better performance. 2. Dry-type transformers: transformers whose iron cores and windings are not immersed in insulating oil. Second, the characteristics are different 1. Fea...
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  • Safety precautions

    Safety precautions

    1 The transformer, transformer enclosure or transformer isolation fence should be well grounded and have safety warning signs. 2 After the transformer is put into operation, it is forbidden to touch the main body of the transformer to prevent accidents. It is strictly forbidden to regulate the vo...
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  • Transformer monitoring and maintenance

    Transformer monitoring and maintenance

    In order to ensure the normal operation of the transformer, it needs to be regularly monitored and maintained. 1 The temperature display value of the temperature controller should be monitored frequently, the operation of the transformer should be grasped in time, and attention should be paid to ...
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  • The transformer is put into operation

    The transformer is put into operation

    1 Before putting into operation, all parts of the transformer should be cleaned and wiped clean. 2 In the case of no-load voltage regulation, the connecting piece of the pressure regulating tap should be connected to the corresponding position according to the mark on the nameplate; 3 For on-load...
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  • Transformer types and characteristics

    Transformer types and characteristics

    (1) According to the purpose 1. Power transformer, used for step-up or step-down of power system. 2. Test the transformer to generate high voltage, and conduct high voltage test for electrical equipment. 3. Instrument transformers, such as voltage transformers and current transformers, are used f...
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  • The purpose of the transformer

    The purpose of the transformer

    A power transformer (transformer for short) is an electrical device used to change the voltage of alternating current. According to the principle of electromagnetic induction, it exchanges a certain level of AC voltage into another level of AC voltage to meet the needs of different loads. Therefo...
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  • The main components and functions of transformers

    The main components and functions of transformers

    The most basic structural components of a transformer are composed of iron cores, windings and insulation. In addition, for safe and reliable operation, fuel tank, cooling device and protection device are also installed. (1) Iron core: The iron core of the transformer is the path of the magnetic ...
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  • How Transformers Work

    How Transformers Work

    The schematic diagram of the working principle of the transformer is shown in Figure 1. The primary winding and the secondary winding of the transformer are equivalent to two inductors. When the AC voltage is applied to the primary winding, an electromotive force is formed on the primary winding,...
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  • Transformer Principle

    Transformer Principle

    A transformer is a device that transforms AC voltage, current and impedance. When an AC current flows through the primary coil, an AC magnetic flux is generated in the iron core (or magnetic core), which induces a voltage (or current) in the secondary coil. The transformer consists of an iron cor...
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  • The danger of transformer oil leakage

    The danger of transformer oil leakage

    Both types of penetration are the process of mutual penetration. The process itself means that the inner insulation is no longer isolated from the atmosphere, that is, the inner insulation is destroyed. As for the damage to the insulation strength is significantly reduced, or even the loss of ins...
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  • Transformer oil leakage classification

    Transformer oil leakage classification

    Transformer leakage is divided into oil side leakage and gas side leakage. 1. Oil side leakage is commonly referred to as “leakage oil”. It mainly occurs in the joint surface of the transformer, welds, sand holes, butterfly valves, heat sinks, porcelain bottles, bushings, bolts and ot...
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