Distribution automation terminal core unit capable of achieving direct cool starting at -40 DEG C

Abstract

The invention relates to a distribution automation terminal core unit capable of achieving direct cool starting at -40 DEG C. The Distribution automation terminal core unit comprises a power module, a follow-up application circuit and a high-speed sampling module, and output of the power module is directly connected to the follow-up application circuit. The distribution automation terminal core unit is characterized in that output of the high-speed sampling module in a circuit is connected with a low-temperature starting module to be connected with the power module, direct current (DC) 48V is input, + / -12V and 5V are output through the power module, an output 5V port is connected with a voltage stabilizing circuit which is composed of an L2, an E4, a C10 and a C11, the capacitance C10 and the capacitance C11 are in parallel connection with the capacitor E4 to be in series connection with electrical inductor L2 to form the voltage stabilizing circuit, and power is provided for a DC conversion chip U2 by the voltage stabilizing circuit. According to the distribution automation terminal core unit capable of achieving direct cool starting at -40 DEG C, an industrial grade core unit with high low temperature resistance is used for processing the chip, and direct cool starting of the distribution automation terminal core unit in the -40 DEG C low temperature environment can be achieved.

Description

technical field [0001] The invention relates to a power distribution automation terminal core unit that can be directly cold-started at -40°C, which is applied to a power distribution automation system and belongs to the field of power systems and automation thereof. Background technique [0002] The construction of distribution automation is an inevitable trend in the development of smart grid in the future. In the distribution automation system, most of the terminal core units can work normally at room temperature, meeting the technical indicators of the distribution terminal in the construction of the smart grid. However, in the low-temperature environment of the alpine region, it often fails to start normally, which seriously affects the promotion and construction of the distribution automation system in high-latitude regions. As a result, there is naturally an urgent need for a new type of power distribution terminal core unit that has a strong ability to resist low te...

AI Technical Summary

Problems solved by technology

However, in the low-temperature environment of the alpine region, it often fails to start normally, which seriously affects the promotion and construction of the distribution automation system in high-latitude regions.

Images