Deepakkumar Yadav
Objectives of Preventive Maintenance of Electrical Equipment’s Q. State any four objectives of preventive maintenance of electrical equipment’s. The main objective the preventive maintenance is to protect the insulation and to maintain it in good condition to increase the life the machine. Particularly electrical machines which are rotating type, and stationary machines operating on or dealing … Read more
Factors Affecting Preventive Maintenance Schedule Q. State factors affecting preventive maintenance schedule. Also state advantages of same. Position of the machine in the plant : The various machines are positioned in the factory plants as per the sequence of operations and place availability. In certain case of machine, it is so positioned due to constraints … Read more
Methods of Testing on Machine Q. Explain the methods of testing (1) Direct Testing of Machine (2) Indirect Testing of Machine (i) Direct method of testing : In this method the machine is directly connected with the load or a pulley and brake arrangement is provided or a electrical load may be connected in the form … Read more
Objectives of ISS Q. State any four objectives of ISS To specify standards for machines, equipment, apparatus, materials etc. To suggest standard tests for newly manufactured machines. To specify the plus / minus limits for the test results. To specify the tolerance to accept the items. To give ISS certification
Need of Parallel Operation of Alternators and Condition for Satisfactory Parallel Operation. Q. Why the alternators are connected in parallel ? What are the conditions to be fulfilled successful parallel operation of alternators? Need of parallel operation of alternators and condition for satisfactory parallel operation : Load growth : Load demand is now a days … Read more
Tests to be Carried out on Transformer Under Routine Tests and Special tests Q. Enlist any four tests to be carried out on transformer under routine tests and special tests. Routine Tests : Measurement of D.C. Resistance of Winding Measurement of Voltage Ratio and Check of Voltage. Vector Relationship (Polarity Test and Phasing – out … Read more
Objectives of Machines Testing Q. What are the objectives of testing Q. Explain why testing is carried out on machines or equipment’s. The main objective of testing is to know the quality of the machine, quality of materials used for manufacturing the machine and also to check its behavior and performance as per the design … Read more
Types of Fire Extinguishers Q. Which types of fire extinguishers are in your institute state their locations. Types of Fire Extinguisher Many types of fire extinguishers are available with different extinguishing ‘agents’ to deal with different classes of fires. Water-filled extinguishers: There are two methods of operation. Gas cartridge type Stored pressure type With both … Read more
Conditions for Parallel Operation of 3Φ Transformer. Q. State various conditions for parallel operation of 3Φ transformer. Conditions : Voltage ratings of the primary windings should be suitable for supply system voltage and frequency. The windings must be properly connected as regards their polarities. Voltage ratings of primary and secondary of both transformers must be identical … Read more
Objectives of Reduced Voltage Running up Test on 3 Φ IM. Q. Describe the objectives of reduced voltage running up test on 3 Φ IM. Many induction motors are started with star – Delta starter where the applied voltage at starting is 1√3 times the rated voltage. To ascertain the ability of the motor to run at … Read more