Design of a New Semiconductor Circuit Breaker
The objective of this present work is to design, simulate and testing the new semiconductor circuit breaker. In this thesis, both circuit breakers are built around electronics and semiconductor devices. The designed circuit applies solid state technology to provide relay control and op to coupler...
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| Main Author: | |
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| Format: | Thesis |
| Language: | English English |
| Published: |
2008
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| Subjects: | |
| Online Access: | http://psasir.upm.edu.my/id/eprint/7279/1/FK_2008_75a.pdf |
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| Summary: | The objective of this present work is to design, simulate and testing the new
semiconductor circuit breaker. In this thesis, both circuit breakers are built around
electronics and semiconductor devices. The designed circuit applies solid state
technology to provide relay control and op to coupler device as interface between
electronics control circuit and power supply side. The design combines solid-state
switching, analog signal output to perform circuit protection and earth leakage circuit
breaker.
The simulation has been carried out using the OrCAD simulation software. The real
performance of the designed semiconductor circuit breaker has been measured using
oscilloscope. The analysis has been carried out on the single phase and three phase loads.
The tripping time has been measured during the short circuit test. Waveforms of the simulations showed that the tripping time is 2 ms on the single phase load and 2 ms on
the three phase load. The short circuit test has been carried out showed the tripping is 2
ms on the single phase load and 2 ms on the three phase load. Comparison of the tripping
time has been made between the designed semiconductor circuit breaker and
conventional circuit breaker which is available on the market. Data sheet of the
conventional circuit breaker showed the tripping time is more than 20 ms. Its means that
the performance of the tripping time of the semiconductor circuit breaker is much better
than the conventional electromechanical circuit breaker. |
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