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.
- 2 Answers
- 4723 Views
- I also Faced
- E-Mail Answers
Answer Posted / prashant kumar sharma
Input frequency and Voltage at the VFD is constant but at
the output at the VFD is variable.
secondly the power factor at the Driven end is changing wrt
to load.
more over the Active and reactive part of Power is
deviating wrt to above factors thus the power at the input
and output of VFD are different.
in DOL none of the parameter like Voltage or Frequency are
changed thus Power remain same.
| Is This Answer Correct ? | 6 Yes | 0 No |
Post New Answer View All Answers
what is the working principal of pribe
why we use the ac supply load cell>?can we use the dc supply load cell?advantages and disadvantage of the ac supply load cell?
how can i calibrate the temperatuture gauge used by temperature bath(dry block) i mean step by step procedure?
types of cable..? Use of every types of cable..?
why direct mounted pressure transmitters is always installed with DBB ( double bleed block) valve in process line or top of the tanks ?
why use 50% lel methane gas concentration for gas detector calibration instead of 60% lel gas concentration whereas the hi alarm set at 60% lel.
What is Erosion in a control valve?
is motorized valve closed when power shutoff?
Linear amplifier.
With N nodes and B branches what will have a network ???
What is the differerence between hysterisis and linearity.
OBJECTIVE TYPE QUESTIONS OF ANALYTICAL INSTRUMENTATION
what is performance test.need defination
how pressure transmitter work, what is its principal to measure and how its generate signal. for pressure transmitterinstallation which precautions must be taken ??
how to calculate signal cable sizing? and multipair cable sizing??explain in brief?
