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Participant

Join Date: Oct 2017
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Gen Voltage

10/29/2017 4:46 AM

Hi

Referring to the attached diagram
If you change the connection between points 9 and 12
which voltage will I measure between the phases and zero?
Thanks

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#1

Re: gen voltage

10/29/2017 10:09 AM

The image and your details are not clear. If one changes the at 9 and 12 to what?

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Participant

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#2
In reply to #1

Re: gen voltage

10/29/2017 1:20 PM

hi

I mean :

Changes the wiring between points 9 and 12

that mean the new star point will be now :4,8,9

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Anonymous Poster #2
#8
In reply to #2

Re: gen voltage

10/30/2017 8:06 AM

Why do you want to change the connection? Get a phase checker and phase your building properly. The standard connection will work most effectively.

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Power-User

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#9
In reply to #8

Re: gen voltage

10/30/2017 8:12 AM

Not sure why my post came up as Anonymous Poster #2

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Participant

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#10
In reply to #8

Re: gen voltage

10/30/2017 8:26 AM

Hi

I am not going to change. i just ask Theoretically

Thanks

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#11
In reply to #10

Re: gen voltage

10/30/2017 9:48 AM

Theory is just a simplified abstract of the real world. Why take something that works properly and change it into something that doesn't (rhetorical question - NNTR)?

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#13
In reply to #10

Re: gen voltage

10/30/2017 2:11 PM

The thing is that people never change. LOL.

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#3

Re: Gen Voltage

10/29/2017 6:04 PM

I assume that 'zero' means the neutral. It would still be the phase voltage. Phase to phase would be different in that the one phase would not be 120 degrees from the others but 60 degrees, e.g. 0, 120, 60 rather than 0, 120, 240 degrees.

Draw a phasor diagram.

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#4
In reply to #3

Re: Gen Voltage

10/29/2017 11:56 PM

..., said Captain Picard.

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#12
In reply to #3

Re: Gen Voltage

10/30/2017 12:14 PM

Wait. The angle of the phase is determined physically by the location of the poles, not electrically. Changing the connection of terminals 9 & 12 just changes the rotation of the phases, unless you also change the direction of the physical rotor. The voltages and angles would be the same as before.

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#5

Re: Gen Voltage

10/30/2017 6:48 AM

What cycles? 50 or 60hz, makes a difference

Bazzer

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Participant

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#6
In reply to #5

Re: Gen Voltage

10/30/2017 6:54 AM

50 hz

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#7

Re: Gen Voltage

10/30/2017 7:53 AM

What is the reason for wanting to do this, please?

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