Electrical Engineering (EE) Exam  >  Electrical Engineering (EE) Questions  >  what current flows in thee phase transformer ... Start Learning for Free
what current flows in thee phase transformer primary when its secondary is open?what is its function?
Verified Answer
what current flows in thee phase transformer primary when its secondar...
The current that flows in the primary winding of a transformer when it's secondary is open is only the current that supplies for no load losses and setting up the magnetic flux in the core, hence the name, no load current.
This question is part of UPSC exam. View all Electrical Engineering (EE) courses
Most Upvoted Answer
what current flows in thee phase transformer primary when its secondar...
Current Flow in Three-Phase Transformer Primary with Open Secondary
When the secondary of a three-phase transformer is open, no current flows in the secondary winding. However, in the primary winding, a small amount of magnetizing current called the exciting current flows. This current is necessary to establish the magnetic field in the transformer core.

Function of Exciting Current
The function of the exciting current is to magnetize the core of the transformer. This magnetic field allows the transformer to transfer energy efficiently from the primary winding to the secondary winding when a load is connected.

Equivalent Circuit of Single Phase Transformers
In the equivalent circuit of a single-phase transformer, the exciting current is represented by the magnetizing branch. This branch includes the magnetizing inductance and resistance, which account for the magnetizing current flowing in the primary winding when the secondary is open.

Explanation of Equivalent Circuit
The magnetizing inductance represents the ability of the transformer to store energy in the magnetic field, while the resistance accounts for the losses associated with the magnetizing current. Together, they form the magnetizing branch of the equivalent circuit.
In summary, when the secondary of a three-phase transformer is open, a small magnetizing current flows in the primary winding to establish the magnetic field in the transformer core. This current is essential for the efficient operation of the transformer when a load is connected. The equivalent circuit of a single-phase transformer includes the magnetizing branch, which represents the magnetizing current and losses in the transformer core.
Community Answer
what current flows in thee phase transformer primary when its secondar...
Open circuit
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

what current flows in thee phase transformer primary when its secondary is open?what is its function? Related: Equivalent Circuits Of Single Phase Transformers - Electrical Machines
Question Description
what current flows in thee phase transformer primary when its secondary is open?what is its function? Related: Equivalent Circuits Of Single Phase Transformers - Electrical Machines for Electrical Engineering (EE) 2024 is part of Electrical Engineering (EE) preparation. The Question and answers have been prepared according to the Electrical Engineering (EE) exam syllabus. Information about what current flows in thee phase transformer primary when its secondary is open?what is its function? Related: Equivalent Circuits Of Single Phase Transformers - Electrical Machines covers all topics & solutions for Electrical Engineering (EE) 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for what current flows in thee phase transformer primary when its secondary is open?what is its function? Related: Equivalent Circuits Of Single Phase Transformers - Electrical Machines.
Solutions for what current flows in thee phase transformer primary when its secondary is open?what is its function? Related: Equivalent Circuits Of Single Phase Transformers - Electrical Machines in English & in Hindi are available as part of our courses for Electrical Engineering (EE). Download more important topics, notes, lectures and mock test series for Electrical Engineering (EE) Exam by signing up for free.
Here you can find the meaning of what current flows in thee phase transformer primary when its secondary is open?what is its function? Related: Equivalent Circuits Of Single Phase Transformers - Electrical Machines defined & explained in the simplest way possible. Besides giving the explanation of what current flows in thee phase transformer primary when its secondary is open?what is its function? Related: Equivalent Circuits Of Single Phase Transformers - Electrical Machines, a detailed solution for what current flows in thee phase transformer primary when its secondary is open?what is its function? Related: Equivalent Circuits Of Single Phase Transformers - Electrical Machines has been provided alongside types of what current flows in thee phase transformer primary when its secondary is open?what is its function? Related: Equivalent Circuits Of Single Phase Transformers - Electrical Machines theory, EduRev gives you an ample number of questions to practice what current flows in thee phase transformer primary when its secondary is open?what is its function? Related: Equivalent Circuits Of Single Phase Transformers - Electrical Machines tests, examples and also practice Electrical Engineering (EE) tests.
Explore Courses for Electrical Engineering (EE) exam

Top Courses for Electrical Engineering (EE)

Explore Courses
Signup for Free!
Signup to see your scores go up within 7 days! Learn & Practice with 1000+ FREE Notes, Videos & Tests.
10M+ students study on EduRev