what's the reson that,Load is not same on VFD I/P and O/P
Side.whenever DOL condition load is same I/P and O/P side.
Answer Posted / shyam
in VFD, fist ac power rectify into dc power then convert it
into variable ac power.in this process energy loss as heat.
in DOL none of the parameter like Voltage or Frequency are
changed thus Power remain same.
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
Turbidity analyzer working principle ?
installation process of orifice,a question asked for confusion creation in interview by BARC 1.if orifice is tightly fitted with pipe ,it will act like venturi 2.if orifice is left hanging in between liquid it will not create the pressure difference exactly,
Give an example where you had aproblem on the job, and tell me how you solved the problem. and the finalvoutcome.
hi! i want to know about mpse exam.
Explain why use mmwc unit?
Can anybody please let me know Orifice plate sizing calculation formula and step by step procedure
the output of the common trasmitter protocol in qatar gas are the following
What is the function of solenoid valve in on/off & shutdown valve and why it is not used in control valve normally?
Conversions
2. What is ultrasonic flowmeter?
Please any one can provide latest aptitude test,technical test and interview questions for tata consulting engineering (TCE) i need it asap thanks in advance
how can i calibrate the temperatuture gauge used by temperature bath(dry block) i mean step by step procedure?
how to measure oxygen which methods are using?
how many maximum enter 2mm Dia solid cylindrical pipe into 8mm Dia hollow cylindrical pipe. give answer with calculation.
please send data bank of quetions answers on analytical instrumentation.