Construction of an Automatic Distribution Box and Change-Over using A 433 Mhz Radio Frequency Remote Control

Abstract

The distribution board is a panel that houses the fuses, circuit breakers, and ground leakage protection units used to distribute electrical power to numerous individual circuits or consumer points. The board typically has a single incoming power source and includes a main circuit breaker and a residual current or earth leakage protection device. The core function of any distribution board is to allow individual circuits to draw power from correctly rated circuit breakers and for those circuits to be isolated without causing a disruption to the rest of the supply. The construction of automatic distribution box and change over using a remote control consisting radio frequency module of a distinct frequency of 433MHz, microcontrollers various ICs such as IC HT12E, IC HT12D, IC 74764, IC 74138/4013,IC 74174, a Relay of 12v, 10A, Transistor BC548,Circuit Breaker, Push buttons 4nos. The construction of this multi-channel remote control system can control the 4 different phases of the distribution box. This device was achieved by the use of integrated circuits that has timing abilities and relays to effect switching. The automatic phase change-over switch, however, switches between electrical power supply from public supply to generator in the event of a power outage. Furthermore, both power switching circuit and display unit were designed.  ABB-type power contactors rated 12A, 220V A.C was used timer relays to provide some delays (5 seconds) during the starting of the generator and transfer of the connected load vice versa from both power sources depending on the side with steady electrical power at any point in time are used.