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Silicon steel cores for oil-fired power plants and transf...
Silicon steel cores for oil-fired power plants and transformers. Silicon steel sheets are an indispensable soft magnetic alloy in the power, electronics, and military industries, and are also the most widely used functional metallic material, primarily used as the cores of various motors, genera...Read More -
How to Diagnose Faults in Dry-Type Transformers by Sound
How to Diagnose Faults in Dry-Type Transformers by Sound Dry-type transformers typically operate without any noise, which is normal. However, some processes may produce significant noise, indicating that the sound can help identify potential faults. In fact, the sound of a dry-type transformer ca...Read More -
Reasons for Overheating of Dry-Type Transformer Cores
Reasons for Overheating of Dry-Type Transformer Cores When a dry-type transformer is working, the magnetic field of the current in the electromagnetic coil causes the magnetic flux to change alternately. This changing magnetic flux induces an electromotive force (EMF) in the core. This induced EM...Read More -
Handling Fires in Dry-Type Transformers
Handling Fires in Dry-Type Transformers 1. Fires Caused by Insulation Aging (Fire faults in dry-type transformers are relatively common during operation) Statistical analysis shows that 50% of burnt dry-type transformers are caused by insulation aging leading to breakdown. During operation, dry-t...Read More -
Features of Vacuum Circuit Breakers
Features of Vacuum Circuit Breakers: ① Small contact gap: The contact gap of a 10kV vacuum circuit breaker is only about 10mm, resulting in less operating work, shorter mechanical travel, and longer mechanical life. ② Short arcing time, independent of the switching current, typically only half a ...Read More -
Main Structure for Vacuum circuit breaker
Main Structure Vacuum circuit breakers mainly consist of three parts: a vacuum interrupter, an electromagnetic or spring operating mechanism, and a support frame. According to different switch types, there are externally shielded ceramic vacuum interrupters, internally sealed cup-shaped longitudi...Read More -
What is current transformer burden?
What is current transformer burden? In a current transformer (CT), burden refers to the total impedance (resistance and reactance) presented to the CT’s secondary winding by the connected measuring device (such as an ammeter, relay, or meter). It is typically expressed in volt-amperes (VA) ...Read More -
Adverse Consequences of Secondary Short Circuit of Voltag...
I. Adverse Consequences of Secondary Short Circuit of Voltage Transformer Adverse consequences: If the secondary side of the voltage transformer is short-circuited, a very high short-circuit current will be generated, which may damage the transformer and even affect the safe operation of the prim...Read More -
Current Transformers and Their Applications
Current Transformers and Their Applications Current transformers are an important component of modern electrical systems. They allow for safe measurement, monitoring, and control of large currents by generating a scaled-down replica of the current flowing through conductors. This article will de...Read More -
Why can’t transformers operate with direct current?
Why can’t transformers operate with direct current? A transformer cannot operate with direct current (DC) because its operation relies on a changing magnetic field, which DC does not provide. Here’s a detailed explanation of why transformers are ineffective with DC: 1. Operating Princ...Read More -
The principle of current transformer
A current transformer (CT) operates on the principle of electromagnetic induction, similar to a standard transformer. Its primary purpose is to step down the high current from the power system to a lower, manageable value for metering, protection, and control equipment. Here’s how a current...Read More -
What is the difference between an autotransformer and an ...
What is the difference between an autotransformer and an isolation transformer? Autotransformer: An autotransformer is a transformer with a single primary and secondary winding. Based on its structure, it can be categorized as either adjustable voltage or fixed voltage. The coupling in an autotr...Read More
