Abstract: Phase absence is a very common and severe problem in any industry‚ home or office. Many times one or two phases may not be live in three phase supply. Because of this‚ many times‚ some electrical appliances will be on in one room and OFF in another room. This creates a big disturbance to our routine work. This project is designed to check the availability of any live phase‚ and the load will be connected to the particular live phase only. Even a single phase is available‚ and then also
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The schematic of an automatic cooler fan for audio amplifiers is given here. The circuit automatically switch ON the cooler fan whenever the temperature of the heat sink exceeds a preset level. This circuit will save a lot of energy because the cooler fan will be OFF when the amplifier is running on low volume. At low volume less heat will be dissipated and it will not trigger the cooler fan ON. The temperature is sensed using an NTC (negative temperature coefficient) thermistor R2. Junction of
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The automatic fire sprinkler system was one of the earliest sprinkler systems placed into effect. The origin of the modern day automatic sprinkler system dates back to the early 1800’s. The first automatic sprinkler system was created in England in the 1806 by John Carey. It consisted of a pipe with valves held closed by counterweights attached by string. When flames burned through the string the counterweight dropped to the floor‚ which opened the valve that released the water and extinguished the
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Wireless Controller Robotic Arm using Arduino Uno Abstract—This paper presents an innovative wireless robot arm gripper that replicates human arm motion. The development of this robot is based on the Arduino Uno that will interface with the wireless PS2 controller to the robotic part that replicated by the servo motors. The servo will moves the robotic arm‚ base and the gripper through 180° from the default position which is 90°. The S06NF STD servo motor has been placed at the arm part. It
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gap of about 17% in power generation. This has thrown open huge market opportunities for the power backup providing companies. The power backup market in India is growing at an annual rate of 15-20%‚ varying within the three different segments – generators‚ UPS and inverters. Major players like Kirloskar Oil Engines Ltd (KOEL)‚ Mahindra-Powerol‚ Cummins India‚ Greaves Cotton‚ Ashok Leyland‚ Eicher‚ Caterpillar‚ MTU and few other imported brands are seeing huge market potential to grow in India. “India’s
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Automatic Upgrade 1. Summary The short story Automatic Upgrade‚ written by Maggie Robb‚ is a story about a young‚ Indian man named Ramesh. He is a 26 year old man who chose to work in the mobile phone business instead of pursuing his career as a doctor‚ even though he had been studying for five years and his family had paid his fees throughout these five years. Ramesh and his grandmother Nani were on a plane heading towards Surrey‚ which is a county in the South East of England‚ where they
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3.7 Wind Generators: There are three main parts in horizontal axis wind turbines: (1) a rotor‚ (2) an alternator‚ and (3) a tail. The rotor blades are attached to a central hub covered by a nose cone that improves aerodynamics. Three blades are generally present in upwind generators. This entire assembly rotates when wind blows past the blades‚ hence the name “rotor.” In many small wind turbines the rotor is coupled to a shaft which is coupled to an alternator‚ a device that produces AC electricity
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The automatic transfer provisions were originally started as a way to become more firm with juveniles to stop in order to lower crimes and hopefully keep them from becoming criminals in the future. It has been very effective in putting juveniles in jail‚ but many argues that it is not doing what the makers of automatic transfer intended it to do. Although automatic transfer is back by many politicians‚ many of the people who oppose it are concerned parents and community leaders. Automatic transfer
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Automatic Room Light Controller [pic] INTRODUCTION This Project “Automatic Room Light Controller with Visitor Counter using Microcontroller” is a reliable circuit that takes over the task of controlling the room lights as well us counting number of persons/ visitors in the room very accurately. When somebody enters into the room then the counter is incremented by one and the light in the room will be switched ON and when any one leaves the room then the counter
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report to each citizen is often result to data management problem such as slow processing‚ inaccuracy of report and many others. These problems are typical of a manual or traditional system. This research aims to consider a computerized report generator is needed to avoid redundancy and to quicken the
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