Testing of Surge Arresters (Surge Diverters)

Testing of Surge Arresters (Surge Diverters) Surge arrester is important member of protection system. The voltage surgers due lightening strokes and switching surges are diverted to earth by this device this protecting the other equipment connected on the line. The different test to be performed on surge arresters are tabulated in Table. Item Test category … Read more

Testing of Circuit Breakers

Testing of Circuit Breakers It is an automatic switching and current interrupting device for opening and closing a current carrying circuit under full load, over load, fault condition and short circuit condition It is a on load making-breaking device. Each of the circuit breaker has rated breaking current and rated making current and short time … Read more

Cascade Efficiency and Aggregated Technical and Commercial Losses (ATC)

Cascade Efficiency and Aggregated Technical and Commercial Losses (ATC) The primary function of transmission and distribution equipment is to transfer power economically and reliably from one location to another.  Conductors in the form of wires and cables strung on towers and poles carry the high voltage A.C. current.  A large number of copper or aluminium … Read more

Do’s and Don’ts to achieve safety while working in substation.

Do’s and Don’ts to achieve safety while working in substation.  Q. List out Do’s and Don’ts to achieve safety while working in substation. Sr. No. Do’s Don’t 1 Please sign ‘Men working’ or warning boards on the main switch before commencing work. Do not close any switch, unless you are familiar with the circuit which … Read more

Procedure To Rescue A Person Who Received An Electric Shock

Procedure To Rescue A Person Who Received An Electric Shock Q.Explain The Procedure To Be Followed To Rescuing A Person Who Have Received An Electric Shock?  The procedure to be followed to rescue a person who has received an electric shock is as follows Call the doctor immediately.  If the main switch is close by, … Read more

Precautions should taken To Avoid Fire Due To Electrical Reasons

Precautions should taken To Avoid Fire Due To Electrical Reasons Q.What precautions should be taken to avoid fire due to electrical reasons ? Precautions to be taken to avoid fire due to electrical reasons are as follows: 1.If the electrical equipment which is under fire is definitely “DEAD”, The fire can be tackled as an … Read more

Precaution When Working With Electrical Installation

Precaution When Working With Electrical Installation Q. What Safety Precautions Are Necessary When Working With Electrical Installation ?  1. Don’t use loose clothing; Don’t use clothes with metallic buttons. 2. Don’t use nailed shoes. 3. Don’t keep with you the metallic keys, chains while working.  4.Treat everything as live. 5.Thick before you act.  6.To appropriate … Read more