Interested to Buy Any Domain ? << Click Here >> for more details...
My friend has
faced this
question! I
don't know
clearly. So
please anyone
give me the
correct and
short answer to
this question?
What is variable
frequency drive?
Types, what is
star to delta?
Why this
arrangement
necessary?
- 5 Answers
- 10120 Views
- Asian Paints, TCS, I also Faced
- E-Mail Answers
Answer Posted / amit shetkar
see firstly vfd is basically used mainly for 2 purpose i.e to
protect electrical motors & for speed control.
& now about that star delta arrangement it used before motor
in that star connection is used to give smooth start to motor
& when motor achieve it's speed so to maintain that speed
delta connection is used
| Is This Answer Correct ? | 0 Yes | 0 No |
Post New Answer View All Answers
what is the electrical operation procedure for switching on 27.6MVA electric furnace.
when placing a vent or drain hole on an orifice plate should you measure from the center of the bore up or down for the vent placement?
Explain the difference between mmwc and mmwg?
How to calibrate Toxic gas detector?
where i can get training in INTOOLS and PDMS in Delhi-NCR OR north part of India. please reply with ur ans. at arunsamkaria@ymail.com
Give Detail information about plc,dcs,and scada system?
how many pulses are required by a ac induction servo motor of 4 poles with 50 Hz frequency to rotate by 1 degree?
How u measure the massflow in orifice flow measurement techniques
If P will increase then what will happen with PID?
In most instances, Inertia processes are quite uncommon. Give an example of a combined Resistance and Capacitance situation.Describe an application, which according to your understanding of the subject matter, comprises of both Resistance and Capacitance effects.
I WANT SECURITY PAPER MILL, HOSHANGABAD TEST PAPER.KINDLY SEND TO MY MAIL ID
Why all the drains(Gland sealing,ESV,Casing inlet etc) are directly connected to the flash tank instead of hotwell of the condensor in the power plant? My Email Id:naba02222@gmail.com
what is a good line as ic engineer as maintenance ,oc, project, calibration ,validation engineer?
dear sir we have insatlled positioner model no.sipart PS2 make Siemens at our control valves . now problem is if we want to increase the response of valve opening speedy /fast. what parameters do we change for positioner ? any idea. please guide us.
Hook up resistance decade box to temp.transmitter.
