Deepakkumar Yadav
Factors Affecting Earth Resistance Q. Explain factors affecting earth resistance. Earth Resistance or Resistance to Earth : The resistance offered by the earth electrode to the flow of current into the ground is known as resistance to earth. The term Resistance to Earth of Earth Resistance does not imply the contact resistance between the earthing … Read more
Important Points About Cogeneration System Co-generation is the system which produces two forms of energy from one fuel. Large amount of heat in the exhaust steam or flue gases can be used for other purposes, increasing overall efficiency of the system. Co-generation system can be classified on the basis of energy use as : Topping … Read more
Advantages of Installing Interline Power Flow Controller (IPFC) (a) On equipment : It protects the equipment. Field failures are reduced. Wear and tear of contactors is minimized. It switches off the system for excessive harmonics, voltage and current. It switches off banks of capacitors on main faults and also on micro-interruptions. It safeguards and increases the … Read more
Advantages of Energy Audit Q. State advantages of energy audit. It helps to identify energy losses that can be minimised by various means by which we can achieve the following benefits (advantages). Expenditure on energy is reduced, reducing consumption or changing tariff of fuel type. Maintenance cost can be reduced by improved utilization of plant. … Read more
Parameters do We Get From no Load Test and Blocked Rotor Test on 3-Φ Induction Motor Q. What data / parameters do we get from no load test and blocked rotor test on 3-Φ induction motor. No load test and blocked rotor test : Equivalent leakage reactance = X01= √ [Z01]2 _[R01]2 Form the no load … Read more
Method of Measurement of Insulation Resistance Q. State the method of measurement of insulation resistance and explain any one method. Methods of measurement of Insulation Resistance (IR) : By using megger By voltmeter method An insulation resistance meter is a megger which indicates the resistance directly. Disconnect the equipment from mains and then connect one … Read more
Schafer’s Prone Pressure Method Q. State method of artificial respiration and claim. Schafer’s prone pressure method : Lay the patient on his belly, one arm extended directly overhead, the other arm bent at elbow and with the face turned outward and resting on the second hand of forearm, so that the nose and mouth are … Read more
Routine Test for Measurement of D.C. Resistance of Winding Q. Explain routine test for measurement of D.C. resistance of winding. Routine test : The resistance of each winding is measured by passing direct current and temperature of the winding is recorded. Care must be taken to reduce self – inductive effects. The arrangement is shown … Read more
Safety Signs and Symbols State four safety signs and symbols used in industry. Safety signs and symbols : The requirement of safety signs are as below : It should be illustrative i.e. the person must understand its meaning easily. It should convey the instruction easily. It should be Photographically so that it is easily understood … Read more
Maintenance of Motors which Help in Energy Conservation Maintenance : Inadequate maintenance of motors can significantly increase losses and lead to unreliable operation for example, improper lubrication can cause increased friction in both the motor and associated drive transmission equipment. Resistance losses in the motor, which rise with temperature, would increase. Providing adequate ventilation and … Read more