What are the characteristics of layer-type windings? Among the types of transformer windings, layer-type windings hold a unique position. And layer-type windings are applicable to transformer windings with lower voltages and smaller capacities, such as the low-voltage windings of small distribution transformers and the windings of some control transformers. Understanding their characteristics is of great
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 Suppress Reactor Resonance Overvoltage? – Collaborative Design of Damping Resistors and Filters In power system operation, the LC resonance circuit formed by reactors and distributed capacitance can generate dangerous overvoltage phenomena. According to measured data from IEEE Std. C57.21-2021, the peak resonance overvoltage can reach 2-3 times the rated voltage, posing a serious
How is the lightning arrester protection of the transformer carried out? The lightning arrester is the most crucial basic component for protecting power generation equipment and transmission and transformation equipment. It also forms the foundation for determining the insulation level of high-voltage electrical equipment. Installed in front of the transformer, the arrester mainly consists of
What are the precautions for live oil filtration? (1) Throughout the entire process of live oil filtration and degassing, the gas relay circuit of the transformer must be connected to the signal circuit to prevent gas leakage and oil running in the pipeline, causing the oil switch to trip and resulting in a large-scale power
How are the deviation values of transformer parameters and the parameters using peak values specified? The specifications for evaluating the performance parameters of transformers are determined by technical conditions, and each standard value has corresponding deviation values, which can be categorized into several types: (1) Parameters with only a lower limit specified, without an upper
