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There are a transformer and a induction machine those two have the same supply.for which device the load current will be maximum?and why?

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Question added by حسين عبدالهادي الصلوي , متدرب , المحطة الغازية توليد الطاقة الكهربائية
Date Posted: 2016/03/30
Thabet Almezwk
by Thabet Almezwk , QC/QA Engineer , Alfanar Electrical system

Thanks

Transformer is not considered as load, current depend on load which connected to transformer

current for induction machine depend on its power

Bilal Muhammad Iqbal
by Bilal Muhammad Iqbal , Electrical Supervisor , Saudi Iron & Steel Company Hadeed. A SABIC Affiliated co

An induction machine have max load current

Anwar Ali Shaikh
by Anwar Ali Shaikh , MEP Project Manager , X cube Trading

Transformer does not consumes any power except internal losses (iron losses). It supplies power to the connected devices. To answer the question you must define the connected load rating of induction machine and also about transformer connected load.

manzoor ummar
by manzoor ummar , Electrical Engineer , Tata Consulting Engineers

I think your question is which of the two equipments (having same rating) will take higher no-load current.

Induction motor will take more no-load current than transformer of same rating.

Reason:

No-load current comprises of two components:

  1. Magnetizing current
  2. Current corresponding to the no load losses of equipment

In transformer, the medium for the flow of magnetic flux is iron core. Iron core offers less reluctance to the flow of flux. So the magnetizing current required to produce the flux is less.

In case of induction motor, the medium for flux is air. It offers more reluctance than iron core. So, the motor takes more magnetizing current compared to the transformer.

 

mohamed abd el hamid abd alla elfarran elfaran
by mohamed abd el hamid abd alla elfarran elfaran , مهندس مدنى , مكتب العطيشان الهندسى

iapologize for the answer and thanks

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