mechanically‚ but other operating principles are also used. Relays are used where it is necessary to control a circuit by a low-power signal (with complete electrical isolation between control and controlled circuits)‚ or where several circuits must be controlled by one signal. The first relays were used in long distance telegraph circuits‚ repeating the signal coming in from one circuit and re-transmitting it to another. Relays were used extensively in telephone exchanges and early computers to perform
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The sensors are usually LED/LDR‚ LED/Photodiode or LED/Phototransistor pairs and the controller is an electronic circuit which executes the desired feedback algorithm. Gear motors are used for driving the robotic wheels. Note:- If you are interested in Arduino based development‚ we have created this same line follower robot using arduino as well. You may try the arduino based circuit as well to see how same project is developed using different controllers. The line follower robot presented here
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Resume of: XXXXXX XXXXX Objective Seeking a professional position in the field of electrical power engineering utilizing my technical and commercial experience and interpersonal skills‚ I prefer working in an innovative environment with possibility of further career development. Education University degree: Bachelor of science‚ Electrical power and machines section‚ Ain Shams University‚ June 1999 Overall grade: Good Project grade: Distinction Position: 17th of the successful students totalling
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POWER PLANT A power plant is an industrial facility that generates electricity. The source of the energy may vary‚ and includes nuclear‚ geothermal‚ diesel‚ among others. This energy is used to run the generators to provide more energy.A power plant is a building or station that is built to provide the production of power. It usually powers its local surrounding cities or towns. TRANSMITION LINE A transmission line is a material medium or structure that forms a path for
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Overview(larson & toubro) The evolution of L&T into the country’s largest engineering and construction organization is among the most remarkable success stories in Indian industry. L&T was founded in Bombay (Mumbai) in 1938 by two Danish engineers‚ Henning Holck-Larsen and Soren Kristian Toubro. Both of them were strongly committed to developing India’s engineering capabilities to meet the demands of industry. Beginning with the import of machinery from Europe‚ L&T rapidly took on engineering and
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A COMPARISON OF ALUMINUM VS. COPPER AS USED IN ELECTRICAL EQUIPMENT Larry Pryor‚ P.E. – Sr. Specification Engineer‚ GE Consumer & Industrial Rick Schlobohm‚ P.E. – Sr. Specification Engineer‚ GE Consumer & Industrial Bill Brownell‚ P.E – Specification Engineer‚ GE Consumer & Industrial ABSTRACT The debate over the pros and cons of aluminum vs. copper conductors has been discussed for many years. Many of the concerns are based on old information and also misinformation. These concerns center on the
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quantity of refrigerant delivered and hence variable cooling or heating capacity. My air conditioning is not working - What can I do? One of the most common causes of failure is that someone has switched off the power supply. So check that fuses circuit breakers and isolators are all OK and working. Another common cause is blocked air filters‚ so check they are clean and are regularly kept clean. It helps to refer to the manufacturers operating instructions as well. If all else fails and you are still
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starting method of electric motor. there are many type of motor starter‚ the simplest of which is the DOL starter. The D.O.L starter comprises a switch and an overload protection relay. The switch may be manually operated load break switch or circuit breaker‚ but more commonly it would be an electromagnetic contactor which can be opened by the thermal overload relay under fault conditions. Typically‚ the contactor will be controlled by separate start and stop button. An auxiliary contact on the contactor
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Cedar Point‚ known to many as a coveted day trip to ride some of the biggest roller coasters America has to offer; But what many do not know is its fascinating past and the interesting events that took place that make it as we know it today. Located in the Sandusky Bay‚ Cedar Point has become one of the prize possessions of Ohio. With a history dating back to the 1870‚ the classic amusement park on the shore of Lake Erie has seen its share of rides‚ roller coaster‚ people and history. From a deserted
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your agreement. Low Pressure Switch Running Capacitor High Pressure Control Starting Capacitor Metering Device Condenser Motor Condenser Fan Blade Crankcase Heater Contactor Non-digital Thermostat Blower Control Blower Motor Blower Belt Air Handler Circuit Board Fan Relay Time Delay Relay Transformer Refrigerant‚ 2 lb Max Any parts not listed above and the labor associated with their replacement‚ will be billed at the prevailing parts and labor rates. Environmental disposal fee is included as a covered
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