Surge Current, also known as surge current or transient current, refers to a sudden increase in current within an electrical system over a short period of time. This type of current variation is typically caused by events such as abrupt power disconnections or connections, switch operations within circuits, lightning strikes, voltage fluctuations, and similar factors. Surge currents are characterized by momentary high current values but have very brief durations.

Surge currents can potentially damage electrical and electronic equipment because they can lead to currents exceeding the rated capacity of the devices, resulting in equipment malfunction, burning out, or reducing the equipment's lifespan. To protect equipment from the effects of surge currents, various current protection devices such as surge protectors or lightning arresters are commonly employed. These devices divert or absorb excessive voltage and current to prevent damage to the equipment.

Surge currents are also often associated with the stability and reliability of electronic equipment, especially in applications where precise power supply is required, such as computers, communication equipment, and medical devices. Therefore, understanding and managing surge currents are crucial for ensuring the proper operation of electrical systems and equipment.

LuShan, est. 1975,  is a Chinese professional manufacturer specializing in power transformers and reactors for 48 years. Leading products are single-phase transformer, three-phase transformers, DC inductors, AC reactors, filtering reactor, expoxy resin high-voltage transformer and intermediate, high-frequency products. Our transformers and reactors are widely used in 10 application areas: rapid transit, construction machinery, renewable energy, intelligent manufacturing, medical equipment, coal mine explosion prevention , excitation system, vacuum sintering, central air conditioning.

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