CABLE FAULT DISTANCE LOCATOR.pdf

ABSTRACT Conductor failure or outage in general does not promote development to public and private sectors. Development of our country and in addition, there are processes that need not to be interrupted because of their importance. This project presents the design, construction and implementation of a broken ac conductor for automatic detection of a broken ac conductor. Studies have shown that the electric fault which occurs in this facilities constitute the major cause of service interruptions as a result of their exposure to high currents, mechanical strains, utilization by the high currents consuming appliances used for a long time thus it’s difficult to locate the accurate location of the broken conductor. and because now days’ electric cables are being installed inside the walls using the pvc conduits or are being installed underground by the use of underground cables and because of this people generally replace the broken conductors instead of repairing them due to hardship in locating the exact place where the cable is broken therefore the reason of coming up with this project was to facilitate quick locating and isolation.

Technology development has made automation process simpler. The rise in population in the country increases demand for electrical knowledge, Security personnel and more application of electricity in their lives for better improvement and efficient services in homes and the country at large. The need of security is essential to human and living creatures. Considering the need of security we realized that the level of crimes such as theft is increasing, which causes poverty to low class people and class beings. Security is a vital tool in life as it helps people comfortably do business, live well hence encouraging investment the act of employing people to keep monitoring the area is expensive, Therefore a unit need to be designed to solve this problem. In considering the need of many I care up with infrared Based Security Alarm system which alerts one when the intruder interference with IR. i.e. when someone enters in a given area it turns on the security lamps and hence the Buzzer/ac alarm using Relay can produce sound hence detection at the intruder. Infrared based security alarm circuit an detect any movement trigger the alarm. THIS circuit is very useful in homes, banks, shops restricted areas where an alert alarm is needed on any movement. This circuit is based on IR sensor where an infrared beam is continuously falling on a photodiode and whenever this infrared beam breaks by any kind of movement alarm is triggered. Infrared sensor consist an infrared LED and photodiode in which IR LED emits infrared radiation and photodiode detects the radiation photodiode conducts current in reverse direction whenever light falls on it and voltages across it changes this voltages charge is sensed by voltages comparator i.e.(LM358) and generates output accordingly. In this infrared based security alarm circuit we have placed infrared LED in front of photodiode so that IR light can directly falls in photodiode. Whenever someone moves through this beam IR rays stop falling on photodiode and Buzzer start beeping . Buzzer automatically stops after sometimes as buzzer is connected to 55 timer in mono stable mode. OBJECTIVE Main objectives To design infrared based security alarm.

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