What are the characteristics of disc–type winding? Among the many types of transformerwinding, disc-typewinding have remarkable characteristics and are widely used. Disc-typewinding are mainly used in high-voltage transformers with higher voltages and larger capacities. For example, in large power transformers, their good mechanical and heat dissipation properties can adapt to the high electric field intensity, large current, and […]
What are the measures to avoid insulation aging of transformers? Transformers play a key role in the power system, and insulation aging can seriously affect their performance and lifespan. To ensure the safe and stable operation of transformers, it is crucial to take effective measures to avoid insulation aging. Content 1. Optimize the operating environment
What are the functions of transformer winding? In transformers, winding play a crucial role. They are like the “heart” of a transformer and are directly related to the performance and function of the transformer. This article will discuss in detail the important functions played by winding in transformers. Content 1. Constituting the internal circuit The
What is on-load voltage regulation of transformers? (Part 2) The principle of on-load voltage regulation is to set multiple taps on the high-voltage winding or low-voltage winding of the transformer. By switching the tap changer, different taps are connected to the circuit to change the number of turns of the winding and then adjust the output
What is the function of a reactor? Reactor commonly used in power systems include series reactors and shunt reactors. Series reactors are primarily used to limit short-circuit currents, and they can also be connected in series or parallel with capacitors in filters to limit high-order harmonics in the grid. Reactors in 220kV, 110kV, 35kV, and
How to conduct a pump test for oil-immersed transformers? Performing a pump test for oil-immersed transformers is an essential step in the production and maintenance processes. For transformers that have completed the assembly, especially those with a capacity of 8000kVA, voltage of 35kV and below, and equipped with an oil storage tank, a pump test
How to perform oil leak repair? To achieve oil welding repair, the following measures can be taken: (1) Selection of Welding Method for Oil Leak Repair： Considering the characteristic of rapid heat dissipation in oil leak repair, arc welding should be used for repairs instead of gas welding. (2) Pre-treatment and Welding Measures for Different
Can transformers be welded with oil for repair? The repair of oil leakage in transformer welding lines is a crucial task for operating personnel. If welding repairs are conducted during a power outage with oil drainage, the transformer body remains inside the oil tank. As the insulation on the transformer body is already impregnated with
Why is it necessary to fill nitrogen and dismantle components such as casings during transportation? And why is it required to remove the oil storage tank and safety duct during vacuum oil injection? When the transport weight of a large transformer exceeds the carrying capacity of the transport vehicle, it is necessary to release the
What should be noted during the welding of leads for transformers with a voltage of 60kV and above? When welding leads for transformers with a voltage of 60kV and above, the following precautions should be taken: Before welding the leads, it is essential to wrap the base of the leads to be welded with wet
