what is VFD and how to save the power by using VFD?
Answer Posted / rohit pareek
vfd means varriable frequency drive also known as
vsd,inverter,vsvf drive means it is a electronics device
based on volt/hz ratio.
f=N*p/120 means if u will varry the frequency the rpm will
also varry. thus P= 1.73*VI COS PHI IF THE device getting
less current the power also dawn and unit also decrease
hence the power will save
Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
working principle of oil startar
How does a tertiary winding filter harmonic(espcially 3rd one) from entering into load system?
What is trip and closing coil in cb? Why need of them
i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected
how to calculate slip ring induction motor stator and rotor currents??
battery capacity use of made?
what is the difference between directional & non directional earth fault with example please explain.
while doing high voltage test on 11kv/433 distribution transformer why we only give 28 kv on hv side and 3kv on lv side for power transformers what is the value what factors it depends
What are stable systems?
Differentiate between real and apparent power?
In synchronous motor, how the field current is related to armature current..i know its inversely proportional..but concept wise...i was nt clear....pls help me...
In electrical what is earth(ground)connection, wht is the importance of it, why it is recomended to maitain below 3VAC between Neutral and earthspecially in PLC used machines?
why ahould you show client/engineer activities clearly on the project plan
What is bode plot?
In synchronization circuit what is the function of Interposing voltage transformer(IVT)and Reverse voltage transformer(RVT)