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how the ac voltage are selected like 220v,415v,750v,1000v& 1.KV,6.6KV,11KV,33KV,66KV,132KV,220KV & why these are selected like these orders
2 9443Hi Friend I am used multimeter to measure the voltage between R Phase(SS1) to R Phase(SS2). In SS1 is connected with UPS loads. But I am getting voltage between these 2 R Phases. Please give some idea friend
2092In alternator generally we give DC voltage to field of alternator but field (excitor)produce Ac & converts into DC by rotating rectifier(RR ) then fed to rotor .my question is why we cannot give dc voltage directly to rotor instead of Excitor & RR ?
1 3796What is the difference between IS:1554 (Part 1)/1988 & IS:694/1990 ? What do these two standards specify about?
2 21198Post New Electrical Engineering Questions
what should be correct gas pressures to be a 1.5 ac unite
1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to reconfirm its base capacity.
Can you please explain creepage distance in detail, for a 6.6kV cable head what must the distance be and how do you determine it?
how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment
What is the meaning of loop in transformer
all interview questions with answers of ntpc (2000-2009
What is the magnetic field (coil DC ) of Turbo Expander?
What are the ratings of VCB, MCB, MCCB, SF6, ACB, and OCB?
Why auxiliary transformers are not connected in parallel in primary stations?
What are the advantages and disadvantages of closed-loop control system?
how to select proper cable for ct wiring so that drop within the limit.
how to calculate the fault in substation
which type of stability limit is higher,steady state or transient? why?
How we calculate the current carrying capacity of H.T. cabel?
Which test will be more severe for VCB?
