VFD Circuit Diagram in Details

A technical library containing service manuals of all the common drives sold in the last 15 years would be a gem. Trying to navigate the menus and decipher diagnostic codes on a it can be quite challenging if not imposable on some equipment out there. Especially the old Thanks for sharing

You are right to say but no one tells about power saving from vfd even at full load

and capacitor requirement and whether direction changed by changing phase sequence in VFDS

"You are right to say but no one tells about power saving from vfd even at full load and capacitor requirement and whether direction changed by changing phase sequence in VFDS"

There is no power savings at full load, in fact there is a power loss. That is why it is not discussed. If you are not varying the speed, do not use a VFD.

All VFDs are capable of changing direction by simply changing the output phase sequence by changing the firing pattern of the transistors.

Dear this post is not for intelligent like u who says that they are genius if its not informative for you then you share better information please

If you don't know anything then you can't put such remarks

Although earth wire is same as that of phase and neutral but whenever fault occurs it follow that path in which there is lowest resistance so earth leg is having lowest resistance.

Also check other statement given for larger diameter and length of plug top just don't stick to one thing try to read whole article

Please check yourself before concluding

and about air condition power consumption it's not accurate calculations as described it's given a generalized view about AC'S

you have such a wrong preception with you that earth may get inserted into phase as there is spacing between phase and earth is larger then phase neutral you can't even insert earth in phase even they have same size

and second thing is already mentioned in the post don't copy and paste

Take a three pin plug, remove two pins i.e. phase and earth and interchange them. Now tell one oversmart like you, that the bigger pin is earth and ask him to wire it.

Good that the 3 pin was not your design...the world will live more...

Ae bandar, apni hi lal bolana pahle chod de...baadme sudhrega

No one is murkh like u

you will top most in them to do this

He just did.

[comment withdrawn]

Uh-oh; now a thread needs to be opened for complaints about unfriendly GA's. Where will it ever end?

Lol!

I think Navdeep missed the point of running a motor at a speed other than full speed...through a device designed to allow running a motor at less than full speed.

I made point here is because lot of engineers i meet in life still thinks that even if motor kept running at full speed using VFD then power get saved

I made point here is because lot of engineers i meet in life still thinks that even if motor kept running at full speed using VFD then power get saved

Why did you come here, posting these links, and what did you expect in return? A standing ovation, deafening applause, groupies fawning over your brilliance and kissing the ground you walk on, glorying in these divine revelations of yours, borne by Your Glorious Presence from the very throne of Olympus? What did you come here for?

Approval?

And now you're pissed at not getting it. It all makes perfect sense.

Give it a rest, mate. Go back to Olympus. You've no converts here.

Why you are getting frustrated

if you are genius then write your book and sit back

this is group is for sharing information not for genius writers like

if this information is not relevant to you why you visit again and again.

I shared VFD'S information but you go and check Socket and AC'S why ???

You seems to be very free and have no work

Go back and try to repair local sockets and switches and AC's

a bunch of *******