SHORT CIRCUIT CHARACTERISTICS OF AN ALTERNATOR

Contents

SHORT CIRCUIT CHARACTERISTICS

The three terminals of the armature are short circuited .

The machine is driven at approximately synchronous rated speed and measurements of armature short circuit currents are made for various values of field currents usually up to and above rated armature current.

In conventional synchronous machines the short circuit characteristics is practically linear because the iron is unsaturated up to rated armature current

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