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Power is transmitted over long distances at high voltage. In order to supply domestic and residential applications, it needs to be stepped down to 120V or 230V single phase. This conversion happens inside a transformer. If the secondary of this transformer is delta then, the centre of any one of the phases is centre-tapped and … Read more
Use the following calculator to calculate the Voltage regulation calculator to calculate voltage regulation precisely. Enter Vno-load and Vfull-load and click on calculate button. Voltage regulation calculator Enter No-Load Voltage Enter Full-Load Voltage Calculate Voltage regulation Read more: Voltage regulation of transformer Steps to use the voltage regulation calculator Definition Voltage regulation of a transformer … Read more
Voltage regulation of transformers can be a little tricky to understand. Every piece of equipment is designed to operate at a particular voltage or voltage range. Therefore, it is a basic requirement of the power system to maintain the system at a certain level. What is voltage regulation in transformer? Any transformer must be capable … Read more
The primary function of a power transformer is to step up or step down voltage as per the requirement. The magnitude of voltage transformation in a transformer depends on its turns ratio. The output voltage of any transformer can be theoretically calculated from its turns ratio. Use the following transformer turns ratio calculator for turns … Read more
An electric transformer is a device used to step up and step down ac voltages. This article will help you understand their basic concepts, construction, the principle of operation, tests conducted on them, and their classification. During earlier days, DC power was generated close to load stations and distributed. The invention of the transformer resulted … Read more
What is the purpose of transformer oil? Transformer oil functions as a coolant as well as insulating material. It also enables transformer protection during internal faults. It is chemically stable and has high thermal conductivity and dielectric strength. On the event of faults it decays rapidly and forms gases which operate Buchholz relay. What are … Read more
How does a transformer work? A transformer is an electric machine that converts AC voltage from one level to another level with minimum power loss. It is based on the principle of electromagnetic induction. A typical power transformer consists of two sets of coils – Primary coil and secondary coil. The rate of voltage transformation … Read more
Transformers are rated in kVA or VA and not in kilowatts. While electric loads such as motors, lamps, heaters, etc. are always rated in kW, equipment used for power generation and transmission (generators and transformers) are rated in kVA. This article illustrates why are transformers rated in kVA and why not it is rated in … Read more
Here are the most frequently asked transformer interview questions and their answers What is a transformer? By definition, a transformer is a static electrical device that transforms electric energy from one level to another level. Normally transformers are used to step up or step down voltage and current levels, impendence matching and providing electrical isolation … Read more
Transformer action is a phenomenon by which EMF(Electro-motive force) is induced in from one coil to the other coil by electro magnetic induction. It is the basic principle of electric transformers. When a certain AC voltage is applied to a coil, current, proportion to the applied voltage and inversely proportional to the impedance, flow through … Read more
