• Technical Analysis | Dry Type Transformer Partial Discharge Causes and Control Measures

    Technical Analysis | Dry Type Transformer Partial Discharge Causes and Control Measures

    IV. Partial Discharge Test of Dry Transformer 1.Waveform Analysis of Partial Discharge The voltage across the detection impedance Zm (that is, the detection signal) is quite small and must be amplified to give a distinct indication on the instrument. The peak value of th...
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  • Technical Analysis | Dry Type Transformer Partial Discharge Causes and Control Measures

    Technical Analysis | Dry Type Transformer Partial Discharge Causes and Control Measures

    I.Cause of Partial Discharge The transformer insulator, metal body and so on are often with some sharp angle and burr, so the electric charges under the action of electric field intensity will concentrate in the sharp angle or burr position and result in partial discharg...
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  • Congratulation : Trihope Wins Big Contract From Middle East Countries and Pakistan During Hard Period of Pandemic

    Congratulation : Trihope Wins Big Contract From Middle East Countries and Pakistan During Hard Period of Pandemic

    Trihope signed an export contract with customer from KSA in July 2021, and already made delivery in October and November 2021, including two Vacuum Drying and Oil Filling Systems Model KY-6000 and KY-8000, two HV Winding Machines Model GZR-1200, one Foil Winding Machine ...
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  • What is transformer pressure relief valve main function and How to check?

    What is transformer pressure relief valve main function and How to check?

    Pressure Relief devices/valves are typically classified in the Transformer industry as safety or protection devices transformer pressure relief device valve for liquid-immersed transformers open in case of an internal fault and guarantee that the occurred overpressure can properly release. Pressu...
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  • How to detect the state of trace moisture in transformer oil

    How to detect the state of trace moisture in transformer oil

    Transformer oil in the state of water, the transformer in the transportation, storage, use process may be entered by the outside or oil itself oxidation of water, the water generated will exist in the following states: one is free water. The second is that extremely fine particles dissolve in wa...
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  • Major Problems and its Solutions Phase I- Processing of Stereoscopic Wound Cores for Distribution Transformers

    Major Problems and its Solutions Phase I- Processing of Stereoscopic Wound Cores for Distribution Transformers

    A series of problems, such as larger diameter, the formation of waves on the cylinder, the deviation of the verticality of the assembly, and the unqualified performance after annealing during processing, are common problems in the stereoscopic wound core industry, especially for new companies. Th...
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  • Winding of foil coils

    Foil coil is mainly used for small and medium-sized transformers with capacity less than 2000KVA. The advantages of foil coil are: good mechanical strength, not easy to deformation, can withstand short circuit force; Good electrical strength, uniform impulse gradient voltage distribution; Easy to...
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  • The Equipment of Transformer Core Processing

    The Equipment of Transformer Core Processing

    The commonly used transformer core cutting equipment includes the slitting line and the core cutting line The slitting line is mainly used for the split of silicon steel sheet in transformer, motor and other industries. The disc blade is used to slit the silicon steel sheet with a certain width i...
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  • The Cooling Unit of Transformer

    The Cooling Unit of Transformer

    In the working process of transformer, a lot of heat will be produced, which seriously affects the performance of transformer. During the operation of transformer, the loss of winding and core will produce a lot of heat, which must be dissipated in time to avoid insulation damage caused by overh...
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  • What is a transformer coil requirements in processing?

    What is a transformer coil requirements in processing?

    The coil of transformer is an important part of transformer. It is said that the heart of coil type transformer is very important to transformer. In the transformer, the coil is the part of the circuit. In the operation of the transformer, there will be some bad conditions such as over-voltage, h...
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  • Different types of winding machines for transformers

    Different types of winding machines for transformers

    Transformer coil production is a very professional process, and the equipment and tooling used are most special. And according to the different coil structure, the equipment and tooling used are also different. Here we only introduce the technological equipment used in the heart coil. Mainly incl...
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  • How to use transformer coil winding machine correctly?

    How to use transformer coil winding machine correctly?

    Transformer winding machine is the most important core production equipment in the production process of transformer. Its winding performance determines the electrical characteristics of transformer and whether the coil is beautiful. At present, there are three types of winding machine for transf...
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