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Why we choose 400kv,220kv,132kv,66kv,33kv transmission voltages for transmitting power. Why not other voltage levels.
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21 63263DIFFERANCE BETWEEN function of ELCB? function of rccb? function of mccb? function of acb? function of mcb?
4 13810what are the sample questions asking to the test cunducting for electrical superwising lisence test?
2195i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400
2134RESPECCTED SIR/MADAM- I AM PRERING FOR SECTION ENGINEER (ELECTRICAL) RRB CHANDIGARH PLEASE SEND ME SOME PREVIOUS YEAR QUESTION PAPER OR MODEL PAPER.MY EXAM IS ON (30- NOVEMBER 2008).I AM VERY THANKFUL TO YOU. FROM- HARENDRA SINGH YADAV
2099Can you tell me more about pu systems (per unit systems )calculation in large power systems? how to get the base for voltage and power in generator, transformator and transmission lines?
2292what is difference between induction motor&servo motor.what r types of servo motor?how it works?
1 4051Post New Electrical Engineering Questions
My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I - is the value of AC fault current. t - is the operating time of disconnecting device in seconds. K – is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.
How many lightning arrestors to be installed on 50MX60MX10M building and is there any formular for that?
What is meant by stator?
what is thresold of perception
which is the best institute for PLC,SCADA,DCS in hyderabad
What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection
how is the incoming cable size calculated for a given current rating of a panel??
PLZ EXPLAIN THE INTERLOCKING AND CONTROLLING OF CONTACTORS????HOW CAN I DO THAT?
How u can give the overload setting to any motor protection relay for a HT motors with formula and Example?
What is difference between Over Current & Earth Fault protection?
Explain the working principle of Synchronous Generator and Assynchronous generator?
Air circuit breaker safety
how rectifier transformer work in electroststic precipetatore(esp?
why high speed tripping relay is used in protection circuit why not normal relay
how does directional relay work incase of ac ?
