Power protection controller and power protection method

Abstract

The invention relates to a power protection controller comprising a main control part, a sampling circuit part, a contactor control circuit part, a power supply part and anti-surge parts. A mains input end is connected with a mains output end via the contactor control circuit part. The main control part is connected to the sampling circuit unit, the contactor control circuit part, the power supplypart, and the anti-surge parts. The power supply part including a filter circuit is connected to the mains input end, and is connected to the main control part, the sampling circuit part, the contactor control circuit part and the anti-surge parts. The sampling circuit part acquires the working condition of the circuit and transmits the information to the main control part. The anti-surge parts are arranged between the live wire and the ground wire of the mains input end and the liver wire and the null line of the mains input end. The power protection controller can control the on-off state of the circuit by detecting the voltage and current of the circuit, has a time storage function and an external communication function, and can protect user loads when mains input is abnormal.

Description

technical field [0001] The invention relates to the technical field of power supply protection control devices, in particular to a power supply protection controller and a power supply protection method. Background technique [0002] At present, many equipment and electrical appliances do not have high and low voltage power supply, wrong phase, overcurrent and phase loss protection, which may easily cause damage to related loads. In the case of very low voltage and high voltage and high current, especially in places with poor power grids such as Middle East and Africa, the power grid is more unstable. Without a protector, user loads are vulnerable to damage. Contents of the invention [0003] The object of the present invention is to provide a power supply protection controller and a power supply protection method for monitoring and protecting loads of the power grid in view of the deficiencies in the prior art. [0004] For reaching this purpose, the present invention ad...

AI Technical Summary

Problems solved by technology

[0002] At present, many equipment and electrical appliances do not have high and low voltage, wrong phase, overcurrent and phase loss protection, which may easily cause damage to related loads.

In the case of very low voltage and high voltage and high current, especially in places with poor power grids such as Middle East and Africa, the power grid is more unstable. Without a protector, user loads are easily damaged

Images