Hi All,
I need to do some standby-power measurements, in compliance to IEC 62301.
Therefore I must make sure that the AC supply used for the measurements meet these requirements:
1. Vrms = 230V +/- 1%
2. Freq=50 Hz +/- 1%
3. THC < 2%
Especially THC <2% (THD up to and including the 13.th harmonic) is really hard to get from the mains outlet.
My first thought was to look for a line conditioner, but as far as I can see, line-conditioners don't address THC.
Next thought was finding a pure-sine inverter, or an UPS, but Vrms is typically specified to +/- 3% and THC not even mentioned.
Any suggestions would be appreciated.