Rodalco,
Quote:
"TWACS system was tried here in NZ with an American injection system used via a 11 kV / 277 / 480 Volts special transformer in a semie rural substation.( 33kV / 11 kV ). The results were dissapointing as what I heard of it and the overall costs to high to warrant the investment in putting all the extra plant in and upgrade all the kWh meters at the same time.
It was also planned to use TWACS for auto dis - re connect brakers on awkward customers to remotely switch them off or on for non payment."
If they (meaning your utility)weren't happy with the TWACS, look at CTI (Cannon Technologies). Same basic theory using a higher freqency and capacitors in the substation for injecting the signal. Ours works great and they have great support. Drawbacks (if you have very long circuitss) is signal attenuation (corrected by repeaters) and you have to put blocking reactors on the capacitor banks.
Trick440,
How did you resolve a 35,000 kwh difference? Did you get screwed to the wall, or was there an error found?
[This message has been edited by WFO (edited 02-01-2006).]
