Trip cause management device for an electronic trip device

摘要

A management device (1) of the causes of tripping in an electronic trip device enabling operation to take place in efficient and dependable manner by means of an architecture with three microcontrollers. The first microcontroller (3), second microcontroller (4) and third microcontroller (5), connected to one another, perform analysis and storage of characteristics typical to the electric power system (2) measured by the first microcontroller (3). Depending on the power supply situations and the analyzed events, one, two or three microcontrollers can be active to reduce the electric power requirements of the device (1). Storage of the data concerning the electric power system (2) is at least partially performed in redundant manner.

主权项

1. A circuit breaker comprising
a series of inputs designed to be connected to a first microcontroller configured to measure characteristics of an electric current of a power supply line to detect an electric fault of the power supply line, a second microcontroller supplied by said power supply line and presenting a first electricity consumption value, the second micro-controller being configured to analyse data coming from the first microcontroller in order to detect an electric fault of the power supply line, a third microcontroller supplied by said power supply line and connected so as to receive data from the first and second micro-controllers, the third microcontroller being configured to indicate a cause of tripping of the circuit breaker, the third microcontroller presenting a second electricity consumption lower than the first electricity consumption value, a back-up power supply source configured to supply the third microcontroller in case of unavailability of the power supply line.