Deepakkumar Yadav
Electrical Tests are Carried Out Before Commissioning of Transformer Q. Which electrical tests are carried out before commissioning of transformer. Electrical test carried on transformer : Electrical tests : Check winding resistance as per given values. Check insulation resistance between windings, between windings and core. With external body. Take reduced voltage run test. Check cooling … Read more
Steps to Minimize Commercial Losses Steps (Remedies) to Minimize (Reduce) Commercial Losses : A special vigilance squad should be set up to check and prevent theft of energy. Those who tamper the meter and broke the seals of meters should be punished and penalized. Energy audits should be introduced for each area and for the … Read more
Minimizing Transmission and Distribution Losses (Related to Commercial Losses) Provide 100 % metering : Install meters at all the transformation stages of lines and take accurate meter readings. Install static meters at the premises of every consumer with proper sealing and see that correct readings are taken. Install static meters on all feeders and distribution … 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
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
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
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
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
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