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Losing Power (Must stay betwwen 208 and 228) #33023
01/10/04 10:26 PM
01/10/04 10:26 PM
N
NewWaveDigital  Offline OP
Junior Member
Joined: Jan 2004
Posts: 2
THANK YOU

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

Work Gear for Electricians and the Trades
Re: Losing Power (Must stay betwwen 208 and 228) #33024
01/11/04 12:02 AM
01/11/04 12:02 AM
B
Bjarney  Offline
Moderator
Joined: Apr 2002
Posts: 2,527
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).]

Re: Losing Power (Must stay betwwen 208 and 228) #33025
01/11/04 07:32 AM
01/11/04 07:32 AM
electure  Offline

Member
Joined: Dec 2000
Posts: 4,264
Fullerton, CA USA
Another ? might be
What are the conductor sizes and lengths?

Re: Losing Power (Must stay betwwen 208 and 228) #33026
01/11/04 03:49 PM
01/11/04 03:49 PM
G
golf junkie  Offline
Member
Joined: Apr 2001
Posts: 507
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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