Electrical Machine

Potential Transformer MCQ || Voltage Transformer Questions and Answers

1. Potential transformers are used for measurement of _____voltages by means of _____ range voltmeters. High, Low Low, High High, High Low, Low   2. The Primary MMF is least affected by the secondary terminal condition in a Power Transformer Potential Transformer Current Transformer Distribution Transformer   3. What is the effect of increasing secondary …

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Distribution Factor MCQ – Objective Question with Answer for Distribution Factor

1. The Distribution Factor is also known as Power Factor Breath Factor Belt Factor Both 2 and 3   2. Distribution factor is defined as the ratio of Actual voltage to Possible voltage Possible Voltage to Actual Voltage Actual Power to Possible Power Possible Power to Actual Power   3. Calculate the distribution factor for …

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Parallel Operations Of Alternator | Synchronous generator

PARALLEL OPERATION OF ALTERNATOR | SYNCHRONOUS GENERATOR When we speak about the parallel operation of alternators, the first question that arises is: what is the necessity of connecting a large number of alternators in parallel. The answer is very simple. To meet with the ever-increasing demand for electrical power, it is economical and advisable to …

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EMF Equation OF Transformer | Turn voltage ratio of Transformer

EMF Equation Of Transformer ⇒ Let us consider an ideal transformer on no load, when an alternating voltage V1 is applied to the primary side of the transformer thus magnetizing current start flowing in the primary winding and flux Φ is generated in the transformer core. ⇒ The flux Φ is uniformly distributed around the transformer core …

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Working principle of synchronous motor

Synchronous Motor Working Principle Electric Motor is an electromechanical device which transforms electric energy into mechanical energy. According to their type of connection, electric motors are generally classified into the two types i.e single phase motor and three phase motor. A synchronous motor is a 3 phase motor and it closely resembles 3 phase alternator. 3 …

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Transformer

Basic of Transformer A transformer is a static device which converts the alternating current energy from one voltage level to another voltage level. Why is the Transformer a static device? Unlike motor or generator where motion is required to generate output, but in the case of transformer both the winding i.e primary winding and secondary …

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