Electrical Machines
-
A Voltmeter, Ammeter & Cell are Connected in Series. Ammeter shows No Deflection. Why?
A Voltmeter, Ampere Meter and a Battery Cell are connected in Series. It is Observed that Ammeter Practically Shows No Deflection. Why? Due to the large resistance of the voltmeter,…
Read More » -
Difference Between a Transformer and an Induction Motor
An Induction Motor is fundamentally a Transformer – What is the Difference? The induction motor is fundamentally a transformer in which the stator is the primary and the rotor is…
Read More » -
In an Inductive Circuit, Why the Current Increases When Frequency Decreases?
Why the Current (I) Decreases, When Frequency Increases in an Inductive Circuit & vise versa? Another question from electrical and electronics engineering interviews question and answers series. Explain the statement that…
Read More » -
Why Flux in Primary and Secondary Winding is Always Equal?
Why Flux in the Primary and Secondary Winding of the Transformer is Same? One of our followers asked “In a transformer, Which one is greater? primary flux or secondary flux?…
Read More » -
Can We Replace a 110/220 Turns Transformer with 10/20 Turns?
1:2 Turn Ratio for 110:220? The Turn Ratio is Same, Shall its Rating be Same? A step up transformer which has 110/220 turns. Can we replace it with 10/20 turns…
Read More » -
Is it Possible to Operate a 50Hz Transformer on 5Hz or 500Hz Frequency?
What Happens if a 50Hz Transformer is Connected to 5Hz or 500Hz Supply Frequency? What would happen if a power transformer designed for operation on 50Hz frequency were connected to…
Read More » -
Electrical Transformer Symbols – Single Line Transformer Symbols
Transformer Symbols – Single Line Transformer Symbols Following is a list of different types of transformer symbols. The single line transformer symbols list is given below at the end of…
Read More » -
Electric Motors Symbols
Symbols of AC / DC, Single Phase & Three Phase Electric Motors A list of all electrical motors symbols in single image is given below as a reference at the…
Read More » -
Generator and Alternator Symbols
Alternator and Generator Symbols At the end of this post, a list is given showing all the related alternators and generator symbols in single image. Generic Symbol of Generator This…
Read More » -
Which Transformer is More Efficient When Operates on 50Hz or 60Hz?
A 50/60 Hz Transformer – Which One is More Efficient and Why? A transformer is designed to be operated on both 50Hz and 60Hz frequency. For the Same rating, which…
Read More »
