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#33023 - 01/10/04 07:26 PM Losing Power (Must stay betwwen 208 and 228)
NewWaveDigital Offline
Junior Member

Registered: 01/10/04
Posts: 2
THANK YOU

[This message has been edited by NewWaveDigital (edited 01-11-2004).]

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#33024 - 01/10/04 09:02 PM Re: Losing Power (Must stay betwwen 208 and 228)
Bjarney Offline
Moderator

Registered: 04/10/02
Posts: 2561
Loc: West-Southern Inner-Northeast ...
Of all the numbers listed, initially the phase-to-phase voltages under operating load at the appliance line terminals are relevant. Your request would be much easier to follow without all the ‘extras’.

• Specifically, what is the 3ø load? Who or what needs “208 to 228V”? Please, would you furnish complete nameplate data on the equipment?

• Are there any phase-to-neutral or phase-to-ground loads connected to the 2-wire 1ø circuit serving the phase converter, on the converter load terminals or within the appliance?

• Are 210/210/204V measured at the appliance line terminals?

• What are the per-phase currents at the appliance line terminals? What are the per-leg currents on the converter line terminals?

• What about the appliance operation is unsatisfactory related to operating voltage?




[This message has been edited by Bjarney (edited 01-11-2004).]

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#33025 - 01/11/04 04:32 AM Re: Losing Power (Must stay betwwen 208 and 228)
electure Offline


Member

Registered: 12/24/00
Posts: 4229
Loc: Fullerton, CA USA
Another ? might be
What are the conductor sizes and lengths?

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#33026 - 01/11/04 12:49 PM Re: Losing Power (Must stay betwwen 208 and 228)
golf junkie Offline
Member

Registered: 04/22/01
Posts: 511
Loc: York, NE
Phase converter output voltages will vary considerably from loaded to no-load conditions. Also phase to ground measurements will vary.

Check your phase to phase voltage while under load.

GJ

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