Patent classifications
H
ELECTRICITY
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H02
GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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H02H
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
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11/00
Emergency protective circuit arrangements for preventing the switching-on in case an undesired electric working condition might result
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H02H11/006
in case of too high or too low voltage
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H02H11/007
involving automatic switching for adapting the protected apparatus to the supply voltage
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