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When VFD is connected to a 3 phase main supply there is load current difference between incomer to VFD and outgoing from VFD.
1 5686What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva
2168AVR is used for the Voltage regulation of the Generator using the feedback signal by exciting the field winding of the generator.But how the field winding will be excited & using what?
2 6298i need of the bhel question papers along with answers and also give some website names for the downloading question (electrical and electronics engg question)please help me....
1872If a fan get trip and run in reverse direction due to system flow. Now in this condition during starting how can a VFD bring this negative speed to zero and later run in forward direction?
2 5969I have a transformer whose primary operates at 230V, 50Hz for which the secondary voltage will be 12V, 50Hz. What will be the secondary voltage if the primary is fed with 400V, 8KHZ Signal?
ABB,
6 9872what are the maximum available current, voltage ratings and switching speeds of the power electronic devices thyristor, power mosfet, igbt, and mct?
2066Post New Electrical Engineering Questions
How to calculate cable size by using load.?? Any formula...
Why the field rheostat is adjusted such that the voltmeter reads 380V
Can a generator runs after getting 1st stator earth fault.
what is the series parallel connection of capacitors? and how can we use these application in three phase motors for controlling torque?
How can we decide cable size from HT panel to Transformer? Please give you reply with some examples.
hi this is hema, r there any books in particular for the preparation of the APPSC-A.E.E(electrical), if so please mail me the names ... thank u .
if i am in front of transmission line how to know that current direction without any equipment
Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.
What are the uses of stepper motor?
can anybody send me syllabus of rrb section engg (electrical). and also send previous question pepar...
What does Bode plot tell you?
in science exhibition how lamp can blink when you clap near the lamp ? thank you
what are the main applications of transistor in non-linear region?
Explain the method to keep noises low in a control system?
If one tertiary phase i.e. R,Y or B is earthed of a loaded type tertiary delta connected (Without load)of a power auto transformer, what is its advantage/disadvantage?
