The thesis addresses development of schematics and printed circuit board (PCB) for single- phase energy meter and adjacent bistable switch. Emphasis is on the selection and description of key parts of energy meter and removing obstacles in order to deliver product which complies with all required standards.
Efficient energy use requires load side energy measurement and a way to connect or disconnect allowed loads. There are solutions on the market, which enable remote measurement via communication and remote load disconnection or connection via communication. However, presented solution is the first to offer compact measurement and switching of various loads up to 80 A on the DIN rail.
Development of the product is not completed with working sample. The product has to comply with standards and regulations. Since PCBs has to fit into product and product’s space is quite limited. Therefore, PCB has space and other limitations, which prevents to design it with all recommendations of good practice. Some trade-offs has to be done and measurements of the product depicts whether trade-offs were either good enough or pcb design has undergo the new iteration.
The thesis describes development of schematics and selection or calculation of key parts. Furthermore, it describes process of tackling with issues, which leads to pass all the tests.
At the end of the thesis, product complies with all required standards, as a result of gained knowledge.