Basic Electronics and Electrical Engineering: Chapter 4: Synchronous Machines
Synchronous Reactance
Synchronous Machines
Synchronous Machines: Synchronous Reactance
SYNCHRONOUS
REACTANCE
The leakage reactance XL
and the armature reactance Xa may be combined to give "synchronous
reactance" Xs.
Xs = XL
+ Xa …. (4.3)
For the same field
excitation, terminal voltage V is decreased from its no‒load voltage E0
to V (for a lagging power factor). This is because of
(i) Drop due to
armature resistance IRa
(ii) Drop due to
synchronous reactance IXS.
Therefore, total
voltage drop in an alternator under loaded condition is,
= IRa + jIXS = I[Ra+jXS]
= IZS …………(4.4)
Where,
ZS = Ra
+ jXs
……..(4.5)
Basic Electronics and Electrical Engineering: Chapter 4: Synchronous Machines : Tag: Basic Engineering : Synchronous Machines - Synchronous Reactance
Basic Electronics and Electrical Engineering: Chapter 4: Synchronous Machines
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Basic Electronics and Electrical Engineering
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