02672nam a2200253 a 4500 vtls000038068 KUKTEM 20251114204417.0 090617t2008 my a f m 000 0 eng d THE0006998(Local) 201906131418 aida 201107132243 VLOAD 200908141632 VLOAD 200908141606 VLOAD 200906171540 ida84 UMP TK7872.P76 Z66 2008 rs Bc. Zoolnasri Abu Harun Over current protection relay using PIC microcontroller / Zoolnasr Bini Abu Harun Over current protection relay using PIC microcontroller [electronic resource] Kuantan, Pahang : UMP, 2008 100 p. : ill. (some. col.) ; 30 cm. + 1 computer disc Project paper (Bachelor of Electrical Engineering (Power system)) -- Universiti Malaysia Pahang - 2008 Power system protection is the most important requirement before the power system is put into operation. Electrical energy have caused dangers both human and machines. Protection system is mostly controlled by the protection relay. It is the brain of the protection system that monitors input from it sensor as current transformer signals the circuit breaker to open high voltage/current circuits. Over current protection is widely applied at all voltage levels to protect lines, transformer, generators, and motors. Power system protection can be implemented at various stages and various types of protection devices. Industrial operation requires continuous stable power for its operation. The over current relay will serve the purpose on the other hand to protect the system. This project will attempt to design and fabricate over current protection relay using PIC micro controller. The PIC micro controller will cause the circuit breaker to trip when the current from load current reaches the setting value in the PIC micro controller. In order to design it, first the load current need to measure in order to monitor it using current sensor including testing the fault (over current) and when such condition arise, it will isolate in the shortest time possible without harming the any other electrical devices. It will also including in developing the algorithm for instantaneous over current relay and IDMT (Inverse Definite Minimum Time) relay for the circuit breaker to trip. In this project, PIC microcontroller will be used to control and operate the tripping coil in circuit breaker. Programmable controllers Electric power systems Protection 0 0 0 1 20000 20000 2019-09-04 0 CD 3187 | TK7872.P76 Z66 2008 rs Bc. 0000037247 2019-09-04 00:00:00 1 2019-09-04 PSM 0 0 0 1 20000 20000 2019-09-04 0 TK7872.P76 Z66 2008 rs Bc. 0000037246 2019-09-04 00:00:00 1 2019-09-04 PSM VIRTUA40 1573 1579 VTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5200*6500*6501*9992