Thursday, 6 February 2020

Short Shunt Compound Wound Generator

Short Shunt Compound Wound Generator

In a Short Shunt Compound Wound Generator, the shunt field winding is connected in parallel with the armature winding only. The connection diagram of short shunt wound generator is shown below.
compound wound generator fig 2
Short Shunt Compound Wound Generator
Series field current is given as
compound-wound-generator-eq5j
Shunt field current is given as
compound-wound-generator-eq6
Terminal voltage is given as
compound-wound-generator-eq7
If the brush contact drop is included, the terminal voltage equation is written as
compound-wound-generator-eq8
In this type of DC generator, the field is produced by the shunt as well as series winding. The shunt field is stronger than the series field. If the magnetic flux produced by the series winding assists the flux produced by the shunt field winding, the generator is said to be Cumulatively Compound Wound generator.
If the series field flux opposes the shunt field flux, the generator is said to be Differentially Compounded.

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