Lightning protection device for single-phase leakage switch

The utility model discloses a lightning protection device for a single-phase leakage switch. According to the utility model, a lightning protection main circuit and a lightning failure indicator are connected between the phase pole, the zero pole and the ground pole on one side of the single-phase l...

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Bibliographic Details
Main Author XIN DESHENG
Format Patent
LanguageChinese
English
Published 02.04.2014
Subjects
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
GENERATION
MEASURING
MEASURING ELECTRIC VARIABLES
MEASURING MAGNETIC VARIABLES
PHYSICS
TESTING
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Summary:The utility model discloses a lightning protection device for a single-phase leakage switch. According to the utility model, a lightning protection main circuit and a lightning failure indicator are connected between the phase pole, the zero pole and the ground pole on one side of the single-phase leakage switch. A first piezoresistor and a second piezoresistor for forming the lightning protection main circuit and one end of a gas discharge tube are connected to form connection points. The other end of the gas discharge tube is connected with the phase pole, the zero pole and the ground pole separately. Light-emitting diodes, resistors and diodes forming the lightning failure indicator are in forward series connection and then connected between the connection points and the ground pole. After installed the lightning protection device on the single-phase leakage switch, the damage of inductive thunder on load side electrical equipment can be prevented, and reliable protection is also provided for personal elec
Bibliography:Application Number: CN20132688125U