How the Transformer oil testing is done & Why oil dielectric goes LOW & what is solution for that ??
What is the Total Power generation Capacity in India at present ??20 28662
What is the function of Lightning Arrester & Wavetrap in Power system ??18 69411
Why Power generation in India is at 50Hz while in America its 60Hz so is there any advantage/Disadvantage of this ??38 67260
which Machine u will prefer to use at place where Flammable gases are coming out & why ??
Why Human body feel Electric shock ?? n in an Electric train during running , We didnt feel any Shock ? why13 40979
What is the formula for calculating Transformer Losses & Efficiency. I want to compare the Transformer efficiency at different loading condition.6 153068
How can I calculate the trnaformer effciency at different loading condition?2 2955
transformer losses1 3022
i had aplied Hindustan Petroleum corporation limited for the post of maintenance technician -Electrical,i want model questions,if anybody have please send it or please advice?996
solar energy light efficiency & disadvantages?
what are the 4 rules to start the motor?
What is difference between SMC supportg and Glass Fibre Reinforced Plastic Support.
What is the height of DA, DAL, DB, DC & DDE tower?
following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?
why and where we use early make & late break contacts in protection?
how u measure/calculate renge of capacitor,capacitor has no any rating tag.what is the theory of measure of capacitons.
how to calculate
What is the drawback of class b amplifier? How is this minimized?
What is true sine wave or pure sine wave inverter?? Is it sine wave or step wave?? If it is step wave, waves with how much step is considered as pure sine wave? Is it possible to produce pure sinewave using power electronics?
i have total 8 dg sets for synchronizing and 2 buscoupler,1 sectoin dg no 1,2,3,and 2 sectoin dg no 4,5,6,and last section dg no 7,8 ....if buscupler no 1 and 2 is off mode ..than dg no 1,2,3,will synchroniz of another dg sets?
Which motor will you choose which can operate in both lagging as well as leading power factors?
The loads are connected with phase and ground then why current flow as the loads ?
can i connect wavetrap in 2 different phase in EHV line?
What is the difference between UPS & inverter ? which UPS is better and whos got the edge ? what is the difference between & inverter ? which UPS is better and whos got the edge 12 V , 24 V , 36 V etc what are the advantages of 12 V, 24 V , 36 V etc and what are the disadvantages of 12 V, 24 V, 36 V etc thanks