Hi RRaghunath,
Thanks for the reply. I never thought of it in that that way (just didn't know the math involved until you pointed it out.) I've realized that I have got a lot of reading to do on the subject of Induction motors and 3 Phase AC in general. So with my limited to non existence...
LionelHutz
Thanks for the help.
Just curious...
So if everybody here knows everything, what exactly is the purpose of this forum? I see people asking questions all the time on this section. It is more like 95% asking for some sort of help vs. Sharing new ideas.
Is there a disclaimer that I...
Waross,
Thanks for the reply.
I do not have a specific problem per say (at least not yet), nor am I trying to lead anyone around with guessing games. Just trying to understand the operation of a specific system. I am not an electrical engineer so my questions may not be in line with what is...
Waross,
Thanks for the explanation. You are getting close to what I am trying to learn and understand.
So this implies that I must supply the motor #1 configured in a DELTA configuration with 460VAC at 100 Hz, and as long
I maintain the V/f ratio of 4.6 and it will have the same torque as if...
edison123,
With all due respect, I know I wasn't correct, hence the request for additional clarification.
After all, you replied..."regardless of frequency, a 400 V wye connection becomes a 230 V delta connection."
What does this even mean? How does a 400V Wye becomes a 230V Delta?
Perhaps...
LionelHutz,
Thank you so much for that detailed explanation. I am still a bit confused about the Delta & Wye configuration as it applies to incoming line voltage. Taking the following motor spec in to consideration;
230/400VAC
D/Y
50Hz
Does this mean I need 230VAC line power if I want to run...
Can a 460VAC 60Hz Motor be used with 400VAC 60Hz without any issues?
Motor is rated for 460VAC, 60Hz, 0.24kW, 3,600RPM. Using a soft starter (NO VFD).
This is a continuously running motor used for circulating Glycol from a chiller for cooling other devices. Will this motor have any issue...
edison123,
My apologies about conflicting information. I misread your second post. You were correct in both.
Waross,
Unfortunately I do not have the nameplate or picture of it at the moment and won't be getting it from the customer for another month or so. You said...."Now if this is actually...
Edison123,
Pardon my ignorance. In the earlier post you said Delta is used for lower voltage and later you commented that "WYE" is used for lower voltage, both regardless of frequency. I get the frequency part.
In essence, you are also saying that 460VAC's lower voltage is 230VAC and 400VAC's...
edison123,
Thanks, that clarifies the delta/Y connections.
Still looking for answer to the following.
230/460VAC at 50Hz (Motor rating)
What would the equivalent low voltage (for a DELTA Connection) be at 400VAC 60Hz line voltage?
Is it 200VAC. How do I figure that? ideally, I want the...
Jraef,
You are correct. My mistake. It was 7.5 kW / 230/400VAC (and not 460VAC) / Delta/Y at 50Hz.
If I were to interpret the above...this tells me that I can supply the motor with either 3-Phase 230VAC or 400VAC at 50 Hz. Is that correct?
Which wiring configuration (Delta or Y) to use? What...
Motor Data:
7.5 kW 230/460V 50 Hz.(Delta or Y Configuration)
Does the above mean if Plant supply 460VAC (more than likely 480VAC) is connected to the motor using a DELTA connection that it is running at 230VAC and if connected in a "Y" configuration motor is being supplied 400VAC?
Can this...
