PROBLEM: A 11,000/6,600 V, 3-4, transformer has a star-connected primary and a delta-connected secondary. It supplies a 6.6 kV motor having a star-connected stator, developing 969.8kW at a power factor of 0.9 lagging and an efficiency of 92 per cent. Calculate a) motor line and phase currents b) transformer secondary current and c) transformer primary current

Q: There are two types of transformers; Step - Up & Step designed in a unique manner to either increase…

A: Electrical machines can be either generator, transformers or motors. They can be either Ac machines…

Q: 6. Transformers have the capability to step up or step down AC voltage True False

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Q: In transformers, the flux lost in the air is called nd as SKW. If th

A: There are two types of flux in trabsformer, namely, Linkage flux Leakage flux

Q: 1) What are the advantages and disadvantages of 3- phase transformers over 3 single-phase bank of…

A: 1.) The advantages of 3- phase transformers over 3 single-phase bank of transformers are as follows:…

Q: What are components of transformer

A: Solution: A transformer is a device ,which uses electro magnetic induction to transfer  energy from…

Q: Q3) What are the elements finding from no-load test of single phase transformer?

A: At no load test  rated voltage is applied with secondary open circuited. At no load only magnetizing…

Q: In two winding transformers, windings are electrically isolated and magnetically connected. Select…

A: Transformer works on the principle faradays laws of electromagnetic induction.  Transformer consist…

Q: Discuss the role of transformers in power distribution. How do step-up and step-down transformers…

A: Transformers are electrical devices which used to change the voltage levels with constant power and…

Q: TRUE or FALSE: Distribution transformers are always step-down transformers.

A:

Q: ou are employed in transformer fabrication unit. You have to design core of transformer. With regard…

A: Transformer: Transformer is an electrical static device works on the principle of electromagnetic…

Q: In transformer, loss that is related to ohmic resistance of winding is

A:

Q: construction H.W What is the Transformer construction? Give me types of transformer?

A:

Q: Explain the efficiency of increasing the electrical power system of connecting transformers in…

A: By connecting a number of transformers in parallel, greater load power can be supplied. Also,…

Q: What are the uses of three-phase transformers?

A: In this question,  We need to determine the uses of three phase transformer.  We know Three phase…

Q: Questions:- 1. What happen when the two transformers are operated in parallel having un equal turn's…

A: According to the bartleby's guidelines we have to solve only one question posted by students so…

Q: Name two types of Transformers equivalent circuit and then compare them.

A:

Q: (c) Explain the losses of a real single-phase transformers.

A: In this question we will write about single phase transformer losses....

Q: A single phase transformers working at UPF has an efficiency of 90% at both half load and at the…

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Q: Explain conditions of 3-phase transformer to be connected in parallel.

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Q: A15 The rating of transformer is stated in terms of

A: In this question , we will writr rating of transformer..

Q: 1. What happen when the two transformers are operated in parallel having turn's ratio. un equal

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: What are the reasons for using transformer oil in power transformers and why are mineral oils…

A: The explanation is as follows.

Q: Problem No.3. Two resistors (1 Mega Ohms and 2 Ohms) are connected in parallel with an Ideal Diode.…

A:

Q: Two 7970-V:230-V single-phase transformers with impedance with respect to their secondaries of 1.5…

A: Primary Voltage = 7900VSecondary Voltage = 7970 VLoad Impedence = 30+j40 ohms1st transformer…

Q: Draw and explain the phasor diagram for two transformers in parallel.

A: Transformer connection in parallel :  The parallel Operation of a Single Phase Transformer means…

Q: 2. What are the necessary conditions for successful operation of two single- phase transformers?

A: As per Bartleby guidelines we are allowed to solve only one question, please ask the rest again.

Q: A Transformer having 259 V in the primary with a primary current of 14 A. For a secondary Voltage of…

A: In this question , we will find transformer secondary current with given data...

Q: explain why Transformers are necessary in all stages of power distribution systems. Three-phase…

A: Given: Transformer: Transformer is a static device used for the transfer of varying voltage and…

Three-Phase Transformers

Three-segment transformers are a type of transformer used to transform voltages of electrical systems into three ranges. Two type transformers are shell-type transformer and core type transformer. In brief, it could be described because of the exquisite kinds of configurations.

Transformer

Ever since electricity has been created, people have started using it in its entirety. We see many types of Transformers in the neighborhoods. Some are smaller in size and some are very large. They are used according to their requirements. Many of us have seen the electrical transformer but they do not know what work they are engaged in.