What are the factors on which no load current of a transformer depend?

What is no load current of a transformer?

Explanation: The no load current is about 2-5% of the full load current and it accounts for the losses in a transformer. These no-load losses include core(iron/fixed) losses, which contains eddy current losses & hysteresis losses and the copper(I2*R) losses due to the no Load current.

Why no load current of transformer is not sinusoidal?

Explanation: The no-load current in a transformer is non-sinusoidal. … Explanation: Eddy current losses are directly proportional to the square of the frequency of input applied rated voltage. This loss is independent of voltage applied to the transformer. Thus, eddy current loss will increase with frequency.

Why power factor of transformer is low during no load condition of transformer?

In other words, a transformer operating under no-load conditions has a low power factor because the circuit is almost purely reactive. As the load on a transformer increases, the reactance decreases, and the power factor increases. At full load, the power factor approaches 1.

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What is on load and no load?

Load funds are mutual funds that charge a sales fee or commission. No-load funds usually do not charge any sales fee or commission, as long as you keep your money invested for a specified period, often five years.

What is power factor at no load?

The power factor of an induction motor is very low in the range of 0.1 to 0.3 when motor runs at no load. … The no load loss current(Iw) is does not depend on the loading on the motor. Thus the no load current(Io) is equal to the vector sum of the magnetizing current(Im) and working current(Iw).

What are two components of no load current in transformer?

No load current of large power transformers consists of active and reactive component. Active component covers hysteresis and eddy current losses in the core. Reactive component (usually called magnetizing current) creates magnetic field / magnetic flux and lags the voltage by 90°.

What is no load in electrical?

No load power consumption is the electric power consumed by a battery charger when it is plugged into a wall socket but without the mobile phone or other battery device being connected.

Why is primary current in transformer not sinusoidal?

If the transformer iron core did not saturate, the magnetizing current (Im), generated by the flux, would be sinusoidal in shape and in phase with the flux. … The result is that the magnetizing current is symmetrical, but cannot be sinusoidal due to the magnetization curve nonlinearity.

Which of the following is not a part of transformer?

Which of the following is not a part of transformer installation? Explanation: Conservator, breather, Buchholz relay are the parts which are much important in transformer construction in order to maintain temperature of the transformer and to work transformer with good efficiency.

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Which type of loss is not common to transformer and rotating machines?

Explanation: Windage and friction losses occur in rotating parts of a machine generally in rotor of the machine, thus they will never occur in transformer, as transformer does not contain any rotating part at its secondary unlike induction motor. 11.