if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer
1454what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator
1546there is an alternator 480 k.w, 400v,50hz, 4-wire running on load having leakage alternator body earthed current 38 A. is it within acceptable limit? if yes then give reference if no then how to bring within specified limit
1472how hazordious area is classified at an oil & gas plant and categorise suitable class of electric equipment in that area like induction motors, LCS, Lighting Fixtures Fluerescent/Flood lights Mercury& sodium lights, J.Bs, Power Cables etc
2 6766What is magneto on a gas generator. how it functions. its out put is d.c or a.c. how it can be checked for correct functioning
1407What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?
1440if i have 5kw,9A,three phase induction motor,if i want to install it 100 meter away from its feeder,how i will culculate cable size for this load.
2 4423in a refinery one motor is suddenly stoped. what will do how can i findout the problem explain step by step
2 3551the cheapest inducting instrument among all is a)pmmc b)moving iron c)electrodynamometer d)rectifier
2 5012why do we use bundle conductors instead of using single conductor of larger size for high voltage transmission?
7 19454in a refinery one motor is suddenly stoped. what will do how can i findout the problem explain step by step
2 3672what is the value will come when megger the phase to phase ,phase to neutral ,phasae to ground ?
3 19093Post New Electrical Engineering Questions
An ELHNC 80amp 240v 30mA RCD is tripping periodically, every 30 - 180 seconds is it safe to disconnect the protection circuit?
how to electrically make connection to ferroli GN2N?
How to calculate the External Resistance required for 60HP slipring motor in case no any data of the Motor is available???
Factory acceptance test. FAT. For 132 kv transmisstion towers what is that meaning and what are the tests commonly companies perform now days.
electrical knowelge
Why we are use dol starter up to 10 hp
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
HELLO SIR, IAM PREPARING HPCL EXAMS. SO PLS SEND MATERIAL OF HPCL ELECTRICAL ENG..TO VIJAY_8888@YMAIL.COM
should %impedance be high or low in a power transformer? if so why?
What is slope...? Explain slope 1 and slope 2...?
In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.
Please explain the following and how these are working with PLC unit 1.I/O Module 2.I/O Device 3.Adaptor Card 4.Ribbon Adaptor 5.RS 485-FC
internally connection of photvoltic module
How could I get a certificate of competency as Electrical Supervisor? I have completed By BTech in Electrical this year(2012) for VJTI Mumbai Maharashtra. Is it compulsory to be produced while joining?
What is the function of capacitor in electrical circuits?
