Design, Simulation, and Hardware Construction of a 600 W Solid State DC Circuit Breaker for the DC House Project

<p>DC circuit breakers must be able to arrest overcurrent conditions to prevent electrical equipment and wiring from causing building fires or other hazards from occurring. With more DC renewable sourced structures such as Cal Poly’s DC House, an inexpensive and reliable protection system is necessary to ensure safe energy transfer to the loads. One method of protecting a system is preventing excessive amounts of current to be drawn by the load when the surrounding components are rated at a lesser value. DC circuit breakers act as a monitoring system and barely presents an effect on the voltage or power. With most DC circuit breakers on the market being mechanical, the response time to an overload condition is limited to the speed the contacts can disconnect. The examination of response timing and overcurrent limiting is explored in this thesis when using a solid state based DC circuit breaker. The system is designed to handle 600 W, where the operating voltage is 48 V and the maximum allowable current is 12.5 A. The solid state DC circuit breaker has the capability of arresting excessive currents within 30 µs and can be reset through a single pole single throw switch.</p>

Name thesis:degree_name

MS in Electrical Engineering

Discipline thesis:degree_discipline

Electrical Engineering

Year dc:date.available

2018

Author dc:creator

• Bukur, Calin Matthew

Contributors dc:contributor

• NFN Taufik

• DC
• Circuit Breaker
• DC House Project
• Solid State
• 600W
• Hardware
• Simulation
• Power and Energy

Identifier

10.15368/theses.2018.39

OAI identifier oai:identifier

oai:digitalcommons.calpoly.edu:theses-3170