Deepakkumar Yadav
Types of Transformer Winding (Multi layer helical winding) Q. Draw neat sketches and discuss the special features of following winding used for 3 phase transformer : Cylindrical winding, Helical winding, Crossover winding, Disc winding. List the typical voltage and current ranges over which they are used. Different type of winding are used depending upon voltage, current … Read more
Types of Transformer Winding (Helical winding and Double helical winding) Q. Draw neat sketches and discuss the special features of following windings used for 3 phase transformer : Cylindrical winding, Helical winding, Crossover winding, Disc winding. List the typical voltage and current ranges over which they are used. Different type of windings are used depending upon voltage, … Read more
Types of Transformer Winding (Cylindrical windings) Q. Draw neat sketches and discuss the special features of following windings used for 3 phase transformer : Cylindrical winding, Helical winding, Crossover winding, Disc winding. List the typical voltage and current ranges over which they are used. Different type of windings are used depending upon voltage, current and … Read more
Transformer Windings Q. Draw neat sketches and discuss the special features of following windings used for 3 phase transformer : Cylindrical winding, Helical winding, Crossover winding, Disc winding. List the typical voltage and current ranges over which they are used. Q. Why transformer LV winding is place near to Core? Different type of windings are … Read more
Testing of Electrical Transformer (A) Polarity Test (B) Phasing Out Test (A) Transformer Polarity Test The H.V. and L.V. terminals of a single phase and three phase transformer should always be marked as shown in Figure (IS 2026-1962). For a 3 phase transformer, viewed from H.V. side the arrangement of both sets of terminals shall … Read more
Types of Transformers Q. Give the types of transformers. Types of Transformers (A) According to the secondary voltage. Step-up Step down. (B) According to the supply system Single phase. 3-phase transformer (C) According to the purpose Power transformer Distribution transformer Instrument transformer Auto transformer (D) According to the construction Core type Shell type Distributed core … Read more
Working Principle of Transformer Q. Explain the working principle of a transformer. The transformer works on the principle of electromagnetic Induction. Explanation of Working Transformer has the iron core. There are two windings put on the iron core. One winding has N1 number of turns and is connected to A.C. supply. This winding is called … Read more
Electric Power flow Give stages where transformers are used in electric system. (I) Generation of Electric Power The electricity is generated in the generating station by a generator (alternator). The generator generates electrical power at a definite voltage. The generating voltage is 6.6KV or 11KV. (II) Transmission of Electric Power Q. Why Transmission … Read more
Electrical Transformer Q. Give the construction of a three phase transformer. Explain the same. Q. Write a note on Transformer. A transformer is a static device, which transfers power from one circuit to another circuit with the desired change is voltage and current without any change in the frequency. It consists of two or more … Read more
Testing of Transformer Oil Question Q. Explain 1. Crackle 2. flash point 3. Acidity 4. Sludge test. Q. State the properties of good transformer oil. List out the various tests to be performed on transformer oil. Q. Explain how following test is carried for transformers : Testing of dielectric strength of transformer oil. Q. Explain … Read more