The size of a transformer core will depend on?

The size of a transformer core will depend on?
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1 Answer

Answer :

The size of a transformer core will depend on frequency and area of the core.
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Related questions

State any four characteristics of core type transformer.

Description : State any four characteristics of core type transformer.

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Material used for construction of transformer core is usually?

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When secondary of a current transformer is open-circuited its iron core will be?

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Last Answer : When secondary of a current transformer is open-circuited its iron core will be hot because of heavy iron losses taking place in it due to high flux density.

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A 40 kVA transformer has a core loss of 400 W and a full load copper loss of 800 W. The

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Last Answer : A 40 kVA transformer has a core loss of 400 W and a full load copper loss of 800 W. The proportion of full load at maximum efficiency is 0.707

The core construction is like spokes of a wheel in following transformer:

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The desirable properties of transformer core material are

Description : The desirable properties of transformer core material are  (1) low permeability and low hysteresis loss. (2) high permeability and high hysteresis loss. (3) high permeability and low hysteresis loss. (4) low permeability and hysteresis loss.

Last Answer : The desirable properties of transformer core material are high permeability and low hysteresis loss.

The main purpose of using core in a transformer is to

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Why does the core of a transformer need to be laminated?

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why the Transformer core is laminated?

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The purpose of providing an iron core in a transformer is to?

Last Answer : The purpose of providing an iron core in a transformer is to decrease the reluctance of the magnetic path.

The purpose of providing iron core in a step-up transformer is?

Last Answer : The purpose of providing iron core in a step-up transformer is to decrease the magnitude of magnetizing current.

The core used in high frequency transformer is usually?

Last Answer : The core used in high frequency transformer is usually air core .

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Description : A single core lead sheathed cable with two dielectrics of permittivity 4 and 3, respectively, are subjected to same maximum stress. If the conductor diameter is 1.5 cm, the outer diameter of the first dielectric is (A) 1.125 cm (B) 1.5 cm (C ) 2 cm (D) 8 cm

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A single core cable is designed to work for a single phase system with a peak voltage of 220 kV. The maximum

Description : A single core cable is designed to work for a single phase system with a peak voltage of 220 kV. The maximum permissible stress in the dielectric is not to exceed 20 kV/mm. For economical size, the overall core diameter of the cable is (A) 28.2 mm (B) 26.4 mm (C) 24.4 mm (D) 22.0 mm

Last Answer : A single core cable is designed to work for a single phase system with a peak voltage of 220 kV. The maximum permissible stress in the dielectric is not to exceed 20 kV/mm. For economical size, the overall core diameter of the cable is 22.0 mm

A ferrite core has less eddy current loss than an iron core because?

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The armature core of a D.C. generator is usually made of?

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In the transformer which winding has got more cross-sectional area?

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A transformer cannot raise or lower the voltage of a D.C. supply because?

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Primary winding of a transformer?

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The no load current in a transformer lags behind the applied voltage by an angle of about?

Last Answer : The no load current in a transformer lags behind the applied voltage by an angle of about 75°.

In a transformer routine efficiency depends upon?

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