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hi can you give any body fault level calculation, generator fault level calculation,transformer fault level calculation for system fault level with equation? i have 3.3kv generation voltage three gas gen sets, one is 1.9MW,2nd is 2.5MW,& 3rd is 3.8MW & i have 11 kv generation voltage one gas gen sets is 3.8MW, we are step up to 22kv by transformer
3 7961How delta connection in the primary of distribution transformer reduces harmonics?how delta connections reduces harmonics?Please answer me...Hope that question is correct.
2156how we can come to know that motor winding resistance which showing by DMM is right or wrong???is there any chart or something that we will compare & check???
1857Lux meter is the measuring device to measure the lux level of lighting fixture. in industrial sector two types of lighting fixture is being used as street lighting purpose 1. HPSV (Sodium) and 2. HPMV (Mercury). HPMV having white light which is an combination of red, blue and yellow colour, while HPSV haivng Yellow lighting. in HPSV red & blue colour will be absent. during measurement of the lux level of HPSV and HPMV fixture. 1. Lux meter can measure the actual lux level of both fixture? 2. or it will show false reading for HPSV fixture light as it has only yellow light present. please give me answer
1 6340What is the minimum insulation value required for a cable between phase to phase and phase to earth of 380 Vac 50Hz circuit, having load arround 800 amps.
2 9144what is the maximum current carrying capacity of a 95 sqmm cupper under ground cable laid partialy in land and partialy in ground?
4 7279when we megger is not damaged when we are measuring very low resistance? high d.c. voltage is produced in megger so according to i=V/R. current will be high so what is the reason ?
1 3824SIR I AM GOING TO TAKE PART IN JINDAL ENTRANCE XAME OF 4TH OCT. PLEASE SEND ME SAMPLE QUESTIONS FOR THAT ON MY ID JITENDRA1603@GMAIL.COM
1 3707when the direction of a 3phase induction motor is reversed , is there any losses increases?
IOCL,
5 9528a 3 phase slip ring induction motor is wound for 4 poles on stator and 6 poles on rotor; when 3 phase balanced voltage source at 50 hz is applied to motor it will run at a)1500rpm b)1000rpm c)750 rpm d)zero rpm
13 25522Post New Electrical Engineering Questions
WHAT IS SHORT CIRCUIT STRENGTH OF 100 AMPS MCCB?
We need to current density & short circuit calculation at 65kA for aluminium & copper busbar.
we have a 2.5hp Starite electric motor water pump,the elec motor burned out,we need to replace starting capacitor(old capacitor specs erased),what microfarad rating capacitor do we need? 110-125V
How does a tertiary winding filter harmonic(espcially 3rd one) from entering into load system?
how to control dc motor?
why we use four type of phase angle difference between pimary & secondry winding of a transformer & where we use them?
Explain the iniluencc of short circuit ratio on the pert'orniancc of synchronous machine.
How to know about the rating(voltage and other) of induction motor if its name plate is missing at the manufacturing site.
i have a 4 Mva transformer 34.5 kv / 480-277 v and i used 2 parallel 3200 amp bus duct for the secondary feeder using 3 ply of bus bar ( 3/8" x 5" ) as a common where the flexible link terminated and 6300 amps breaker for the main, the lower bus duct reaches 70 degrees and the upper bus duct reaches 55 degrees when i used thermal scanner. why the temperature is not balance when the load reaches 3600 amps.
why dimmerstate always connected in star connection? what will happen if it connected in delta?
what is the necessary of using inductance property in transmission lines even through resistance is used to opposes the high current flows in that?????
What is the rating factor for copper cable ( Specific value according to the type of laying ) & the voltage drop?
Where is servomechanism used?
What is the actual meaning of thermal power efficiency ?
how to find the capacitance value of the motor while running??
