SAFETY PRECAUTIONS IN USING ELECTRICITY:- 1. Avoid water at all times when working with electricity. Never touch or try repairing any electrical equipment or circuits with wet hands. It increases the conductivity of electric current. 2. Never use equipment with frayed cords‚ damaged insulation or broken plugs. 3. If you are working on any receptacle at your home then always turn off the mains. It is also a good idea to put up a sign on the service panel so that nobody turns the main switch ON
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ii. List of figures 6 Chapter 1. Introduction 7 1.1 Literature survey 8 1.2 Block Diagram 9 1.3 Overview of Project 10 1.4 Overview of Block Diagram 11 Chapter 2. Hardware Design 12 2.1 Interrupter Module 13 2.2 Mechanical Assembly 15 2.3 Power Supply Module 18 Chapter 3. Software Design 19 3.1 Overview of software used 20 3.2 Algorithm 21 3.3 Flow Chart 22 3.4 Pseudo
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Treatment Plant INTRODUCTION The primary function of protective devices in a power system is to detect short circuits and isolate the fault by activating the appropriate circuit interrupting devices‚ which increases the reliability and safety of the electrical system. The relay co-ordination study is required to select the protective devices and necessary settings so that circuit interrupter closest to the fault opens before other devices. SCOPE OF WORK Perform protective device co-ordination
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17 Testing 17 Conceptual Design 17 Control design 19 Microprocessor design 20 Controller design 21 Mathematically modelling the system using the step response 21 Determination of suitable performance specs 23 Determination of key circuit parameters 26 Finding the Armature Resistance 26 Finding the Armature Inductance 26 Finding the motor torque constant and the back EMF constant 27 Finding the Time Constant for the system in the electrical domain 28 Finding the Inertia 28
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Code violations can be due to incorrectly sized‚ damaged or outdated wiring‚ faulty electrical panels‚ overloaded circuits‚ poor connections‚ exposed wiring hazards and other causes. If you are wondering who sets the electrical standards‚ it is the National Electrical Code‚ or the NEC‚ who establish the standards which guide electrical repair‚ installation and other
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Some are with contact with overhead power lines. Contact with live circuits is a common one. Not following lock out tag out procedures. Also poorly maintained extension cords and or defective power tools. Lock out tag out is very important and every employee should know the rules and regulations with it. The first thing to do with is to place a tag on each disconnecting means so that t de-energizes the machine and or circuits. There all so should be a lock on these disconnects. The most important
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where the fire alarm is‚ know a saftey plan know the number of fire department. Electricity: Make sure there are good enough outlets and circuts‚ use only grcis‚ naver remove a grounding prong‚ chcek pulgd and cord. 4. Explain why ground-fault circuit interrupters should be used in the workshop. They should be used to protect you by detecting leaks to ground and breaking the circut. 5. List three types of hazardous materials commonly found in the workshop and describe the potential hazard each presents
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The history of the hot tub can be traced back to the Egyptians. It has been used through the centuries for those who wish to enjoy the comfort of hot water caressing a tired body. Everyone who has ever had the experience enjoys the luxury of a hot tub. Being able to lay back and let the hot water jet over one’s tired body cannot be described. It allows all the muscles to relax and the cares of the day fade away. For years‚ there were very heavy and awkward hot tubs. Today‚ there is a new item on
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life. Extensive in-plant preassembly and testing of large units and complete bays reduces assembly and commissioning time on the construction site. GIS equipment is usually of modular construction. All components such as bus bars‚ disconnectors‚ circuit-breakers‚ instrument transformers‚ cable terminations and joints are contained in earthed enclosures filled with sulphur hexafluoride gas (SF₆). Fig. 1 gas insulated substation Fig. parts of substation 2 -WHY DO WE NEED GIS (Gas
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Dust Dropping tools Accidental touching Condensation Material failure Corrosion Faulty Installation Three factors determine the severity of an arc flash injury: Proximity of the worker to the hazard Temperature Time for circuit to break Because of the violent nature of an arc flash exposure when an employee is injured‚ the injury is serious – even resulting in death. It’s not uncommon for an injured employee to never regain their past quality of life. Extended medical
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