Hello,
Above picture is from http://www.electrical4u.com/theory-of-transformer-on-load-and-no-load-operation/
It is part of the phasor diagram for a transformer.
IO = No load current with core losses only
I1 = Primary current on load
I2' = Additional current drawn because of load
I2 = Secondary current
By looking at this diagram, it says that once a load is applied, it can alter the phase angle of the primary current. I always thought whatever the phase angle of the secondary current affected by the load, the primary current phase angle will always be the same.
Could someone explain why an increase in load will alter the phase angle of the primary current?
Above picture is from http://www.electrical4u.com/theory-of-transformer-on-load-and-no-load-operation/
It is part of the phasor diagram for a transformer.
IO = No load current with core losses only
I1 = Primary current on load
I2' = Additional current drawn because of load
I2 = Secondary current
By looking at this diagram, it says that once a load is applied, it can alter the phase angle of the primary current. I always thought whatever the phase angle of the secondary current affected by the load, the primary current phase angle will always be the same.
Could someone explain why an increase in load will alter the phase angle of the primary current?