Patent classifications
H
ELECTRICITY
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H02
GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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H02P
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
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13/00
Arrangements for controlling transformers, reactors or choke coils, for the purpose of obtaining a desired output
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H02P13/06
by tap-changing; by rearranging interconnections of windings
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