Step-up Transformer Applications

Step-up transformer

Step-up transformer is an electric device that raises the voltage of the secondary side (winding) to the primary side (winding). A transformer is a static device that is used to step up voltage and step down the voltage. Power remains the same on the primary side and the secondary side of the transformer. As we …

Read moreStep-up Transformer Applications

Electrical Power Generation MCQs

electrical power generation mcqs, hydro power is cheap source

Q # 01. Which one is the cheapest electrical power generation Source   A. Hydro Power Plant C. Diesel Power Plant B. Nuclear Power Plant D. Thermal Power Plant Correct Answer: Hydro Power Plant Q # 02. Coal Power plant also known as A. Charcoal Power Plant B. Steam Power Plant C. Thermal Power Plant D. …

Read moreElectrical Power Generation MCQs

Synchronous Motor Working Principle and Construction

Synchronous Motor Working Principle and Construction

Synchronous motor construction is very similar to synchronous generator construction except that most motors are salient-pole machines. Principle and Operation of Synchronous Motor When an induction motor is connected to a three-phase supply, a rotating magnetic field is established; this induces currents in the rotor windings, thereby producing a torque. The rotor can never turn at …

Read moreSynchronous Motor Working Principle and Construction

Transformer Cooling Methods and Systems

Transformer Cooling methods

Transformer Cooling Methods A transformer in operation develops heat as a result of the copper and core losses during operation. Heat is not produced rapidly in small transformers, but the rate is much higher in large transformers. The rate of heat production determines how high the operating temperature rises above the ambient temperature. There are many  …

Read moreTransformer Cooling Methods and Systems

Instrument Transformers Applications & Types

Instrument Transformers Application

Instrument Transformers Current transformer and voltage transformer measuring instrument transformers are designed to operate at low current and low voltage. Safety is also a reason for not connecting test instruments to sources operating at high voltage. An instrument transformer reduces high voltages and currents to safe values. Instrument transformers perform two functions. It serves as …

Read moreInstrument Transformers Applications & Types

Transformer Construction and Types of Cores

Transformer Construction

Basic Transformer Construction A transformer consists of two coils mounted in fixed positions relative to each other. One coil is supplied by an alternating current. As the current alternates, the magnetic field it produces also alternates. This alternating field induces an alternating current in the second coil, which supplies a load. A simple transformer construction consists …

Read moreTransformer Construction and Types of Cores