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## What is the power factor of transformer at no load?

This current is responsible for supplying the iron losses (hysteresis and eddy current losses) in the core and a very small amount of copper losses in the primary winding. The angle of lag depends upon the losses in the transformer. The power factor is very low and varies from 0.1 to 0.15.

## Why is the power factor poor?

The main cause of low Power factor is Inductive Load. As in pure inductive circuit, Current lags 90° from Voltage, this large difference of phase angle between current and voltage causes zero power factor.

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## What is the power factor for a transformer?

The power factor of a distribution transformer is between (0.75 to 0.80) when secondary is connected to u.p.f loads.

## What is the no load power factor of a transformer?

If the primary winding resistance is 0.4-ohm, find the no-load power factor. Example 3: A 100 kVA, 2400/240 V, 50 Hz single phase transformer has an exciting current of 0.64A and a core loss of 700 W, when its high voltage side is energized at rated voltage and frequency. Calculated the components of no-load current and no-load branch parameters.

## What causes low power factor and it’s correction?

Inductive Loads 1 90% of the industrial load consists of Induction Machines (1-ϕ and 3-ϕ). 2 For Induction motors, the pf is usually extremely low (0.2 – 0.3) at light loading conditions and it is 0.8 to 0.9 at full load. 3 The current drawn by inductive loads is lagging and results in low pf.