Deepakkumar Yadav
Tests to be Carried Out on 3 Phase Induction Motor Q. List out the tests to be carried out on 3 phase induction motor as per I.S. 4029 – 1967 and is 325 – 1961. Routine Tests : These tests are carried out on each and every motor manufactured in the industries. As per I.S. … 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
Specific Test Before And After Commissioning of Transformer Q. List the specific test before and after commissioning of transformer. 1. Mechanical tests 2. Electrical tests THESE RULES MUST BE FOLLOWED FOR ALL TEST PROCEDURES. Following is an approximate sequence for transformer testing: 1. Inspect transformer and parts for shipping damage and moisture. 2. Check nameplate … Read more
Electric Accidents Q. Define following term w.r.t. electric accidents. (i) Safety (ii) Hazard … Read more
Do’s and Don’ts For Working on Electrical Equipment Q. State the general Do’s and Don’ts for working on electrical equipment. Do’s : 1. Before replacing a lamp or handling a … Read more
Factors on Which Severity of Electric Shock Depends. Q. State any four factors on which severity of shock depends. Severity of shock depends on following factors such as, Supply system whether D.C. or A.C. D.C. shock is more serious. Which part of the body touched to linked machine. Voltage and current strength of the system. … Read more
Causes Of Fire Due To Electrical Faults Q. What are the causes of fire due to electrical faults ? Following are the different reasons of electric fires: Poor quality material is used which is incapable of carrying rated current. Machinery of electric circuit … Read more
Precautions To Be Taken While Working On An Electrical Installation Q. Enlist any four precautions to be taken while working on an electrical installation ? Don’t use loose clothing; Don’t use clothes with metallic buttons. Don’t use nailed shoes. Don’t keep with you the metallic keys, chains while working. Treat everything as live.