Page 251 - Electrician - TT (Volume 1)

ELECTRICIAN - CITS

Ideal transformer
V1 - supply voltage ; I1 - noload input current ;
V2 - output voltgae; I2 - output current

I - magnetising current;
m
E1 - self induced emf; E2 - mutually induced emf

Transformer on load
secondary is loaded, current I2 is set up.
• magnitude and phase of I2 with V 2 is determined by the characteristics of the load.
• Current I2 is; in phase with V 2 if load is non-inductive,
• lags if load is inductive & leads if load is capacitive

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CITS : Power - Electrician & Wireman - Lesson 41-49