Controller device of intelligent residual current circuit breaker

The invention discloses a controller device of an intelligent residual current circuit breaker. A controller is mainly composed of a power module, a current acquiring module, a control module, a single chip microcomputer processing module, a human-computer interface and a communication module which...

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Bibliographic Details
Main Author CAI CHENGLIN
Format Patent
LanguageChinese
English
Published 30.01.2013
Subjects
BASIC ELECTRIC ELEMENTS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
ELECTRIC SWITCHES
ELECTRICITY
EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
EMERGENCY PROTECTIVE DEVICES
GENERATION
RELAYS
SELECTORS
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Summary:The invention discloses a controller device of an intelligent residual current circuit breaker. A controller is mainly composed of a power module, a current acquiring module, a control module, a single chip microcomputer processing module, a human-computer interface and a communication module which are connected through electrical signals. The power module induces a power supply by means of a current transformer. The current acquiring module adopts a rail-to-rail operational amplifier. The control module adopts a voltage triggering drive. The controller device of the intelligent residual current circuit breaker utilizes the current transformer as a self-sustained power supply of the controller so as to provide a stable working power supply for the circuit breaker. Based on output characteristics of the rail-to-rail operational amplifier, an amplitude value of signal sampling is improved, and the control accuracy of a system is improved. Voltage is used for triggering a metal oxide semiconductor (MOS) tube to
Bibliography:Application Number: CN20121299798