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normally quite small compared with the load current its contribution
to the voltage drop across R
{
and L
x
can reasonably be neglected, by
transferring them to the secondary circuit, so that suitably increased
values of R
2
and L
2
include them. Fig. 7.9a shows the simplified
diagram. For easy comparison with the preceding ones, c is still
shown, though it is now electrically the same as a.
Δ
(α) (b)
Fig. 7.9 Simpler phasor diagrams (b) than those applicable to Fig. 7.8 are obtained by
transferring the primary resistance and leakage inductance to the secondary circuit
and combining the fully coupled parts of the windings (a)
AC and cd are