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How can we measure earthing resistance test (Earth meggar) of Transformer neutral pit while in live condition?.
2147why do we use spark detector inside the slip ring brush compartment 0ona slip ring induction motor?
2100why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?
2933How can we find the breaking capacity of a Load breaker switch (LBS) fed from 11 kv supply??ex:50KA, 26kA etc???detailed step vice answer pls.
2019why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?
2 7282In an panel board if the outgoings are power plugs and motor equipments...what should we choose as the incomer of the of the panel board?? MCCB OR ISOLATOR?? Should we use ELCB protection??if so where??
2 4655How select ELCB for 32amp. socket having quantity 12Nos. We have to do this wiring in PLANT. Please Also explain the incoming cable specification.
1876can anyone please help me to find the rupturing or breaking capacity in KA of circuit breaker (MCCB,VCB,ACB etc) of HT and LT side of a distribution transformer...please help with detailed step by step answer...thank you
2011Hi, I've just got into my electrical engineering course and I need some help with a question of mine here. During a site visit, we were shown a main LT panel which has switchgears, ammeters and different kinds of relays and the distribution network from that panel. In the main LT panel I've noted down the current readings as Ir - 163A, Iy - 150A and Ib - 147A. The Line to Line voltage is 415 V at 50 Hz and Line to Neutral voltage is 230V at 50 Hz. From the above details, how would I calculate the kVA rating of transformer? The primary side voltage of the transformer is 11 kV and the secondary side voltage is 415V and the frequency is 50 Hz.
2 4015Post New Electrical Engineering Questions
what are the assumptions made in swineburne's test?
What are the types of windings present in the ceiling fan? What winding will be effective first when we started the fan?What are the resistance and inductance ratios comparatively at the initial speed and full speed of the fan?
why magnetising curve not start with zero voltage?
what is the ATS .And how it works.
1. for eg, capacitor is used for many purposes(it act as filter, oscillator, bypass capacitor, memory storage etc...) 2. Please tell me some example circuits for different uses of capacitor( whenever and whereever and however we used capacitor as a filter, oscillator tuning etc..) 3. similarly for inductor and resistors(it act as what?) and when and how we want to act as like that?, and how we can used these components depends upon our requirments with example circuits and explanation? design to act as these components depends
How do u analyse protection fault when vcb tripping on load
Is it good to short Neutral and Ground in the PLC or DCS main Power supply. Pls give YES or NO with reasons...? Simarpreet
what is self capacitance of inductor
what is the reason for indication of light in the earth lamps of main switchboard.if there is an earth why does one lamp get dim and the other two bright.
can we find the inductance of a induction motor?
what's the difference between 'shaft power demand' and 'BHP' , when we consider electrical load list.
Why using synchronising methed in DG's sets?
How does cost of generation from hydropower plant compare with other sources of electricity?
what is static frequency converter?what is the function...of sfc...?
What is transient response?
