Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions

Classification Context

Section:

ELECTRICITY

Class:

GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER

Subclass:

EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS

Related Keywords

Child Classifications

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• H02H 7/04 for transformers
• H02H 7/06 for dynamo-electric generators; for synchronous capacitors
• H02H 7/08 for dynamo-electric motors
• H02H 7/1 for converters; for rectifiers
• H02H 7/16 for capacitors
• H02H 7/18 for batteries; for accumulators
• H02H 7/2 for electronic equipment
• H02H 7/22 for distribution gear, e.g. bus-bar systems; for switching devices
• H02H 7/24 for spark-gap arresters
• H02H 7/26 Sectionalised protection of cable or line systems, e.g. for disconnecting a section on which a short-circuit, earth fault, or arc discharge has occurred