Engineering Q&A
Explain construction and working of single phase Auto transformer.
in Transformer by

1 Answer

0 like 0 dislike

Construction of single phase auto transformer: (i) It has only one winding wound on a laminated circular magnetic core. (ii) The core is made of silicon steel stampings. (iii) The two terminals of the winging are connected to the supply. (iv) A variable point on the winding is connected to a carbon brush and brush can be moved by a circular handle.

Working of single phase auto transformer:

image


1) The transformer which works on the principle of self-induction and gives variable output voltage is called an auto transformer. 2) The primary winding is connected to the supply and it has N1 number of turns as shown in above diagrams. 3) By moving the handle we can select N2 number of turns on the secondary. Thus the same winding can function as primary as well as secondary. 4) Hence, from the auto-transformer we can get a variable voltage by varying N2 by moving the brush with the help of handle. 5) The same transformer can be used as step-up or step down auto-transformer

by

Related questions

0 answers
asked Jun 29, 2019 by anonymous | 37 views
1 answer
Welcome to electronics2electrical.com, where students and teachers can ask and answer any question. Get help and answers to any engineering problem including Electrical, electronics, mechanical, telecommunication, instrumentation, computer, mathematics, physics etc. Get answers to questions. Help is always 100% free!

Most popular tags

power motor dc circuit transformer voltage current system used phase factor resistance ac load synchronous induction energy electric generator electrical series frequency capacitor between plant speed line transmission use meter type advantages single mosfet difference control instrument function magnetic amplifier problem high diode bjt machine unit source motors winding and shunt diagram field define electricity torque value parallel maximum relay arduino supply time digital armature types applications thyristor working transformers wave on flow operation three coil material instruments state ratio signal emf effect formula efficiency theorem method disadvantages starting microprocessor test operating direction controlled different logic transistor single-phase network scr loss temperature connected rc law force inductance compare measure station wire low conductor principle wattmeter full characteristics measuring constant measurement breaker losses device converter bridge linear materials nuclear matrix flux drive resistivity machines angle switch free rectifier of protection core battery solar gain thermal loop generators open circuits negative analog number lines friction reactance short gate pole inverter conservation diesel iron capacitance engineering basic direct main electronics a the steam induced relays resistors hysteresis universal transducer computer feedback using range distribution work secondary igbt algebra pmmc plants factors capacitors dielectric controller regulation systems design air fault components electronic rotor cable starter oscillator eddy alternator application semiconductor ammeter rl average forces damping rlc connection zener electromagnetic biasing minimum insulation pressure balanced permanent moving errors running copper self impedance stability quality start ideal curve over commutation 3-phase arc permeability peak bias error fuzzy commutator conductors superposition density mechanical rotation construction measured electrons charge memory inductive transfer explain fuse methods off back is three-phase tariff locomotive installation welding heating rms surge rating generation potentiometer coupled shaded rate capacity storage adc excitation active two pure harmonics reluctance microcontroller voltmeter inductor internal 8085 cro reaction insulating overhead hydro resonance traction definition breakers earth neutral designed

9,158 questions

7,913 answers

151 comments

3,290 users

9,158 questions
7,913 answers
151 comments
3,290 users