Re: [time-nuts] AC line distortion [Was: HP 105B Battery, the saga continues]

Thank you all for the inputs. In the present case, the location is my home about an hour north of San Francisco, California. We are in a rural location with other homes and some small businesses (legal or otherwise). There could be many things hung on the 60 Hz power lines adding noise to the

Re: [time-nuts] AC line distortion [Was: HP 105B Battery, the saga continues]

Considering some signal generators will have 1% (-40dBc) distortion with a 5k - 10k price tag, your 1% is not to bad. On Mon, Oct 3, 2016 at 8:52 PM, Jeremy Nichols wrote: > As an experiment, I bought an AIMS sine-wave inverter for the 105B Quartz > Oscillator. The inverter

Re: [time-nuts] AC line distortion [Was: HP 105B Battery, the saga continues]

Hi A lot of the distortion on the AC line is locally produced. Consider a very normal bridge rectifier running into a capacitor. It draws “all” the current in narrow spikes near the peaks of the sine wave. A half wave rectifier would be even worse (only one spike per cycle). That highly

Re: [time-nuts] AC line distortion

ons the freq exceeds 50Hz and when in need of energy but unable to cold start the suppliers, the freq dip below 50Hz. Adrian -Original Message- From: time-nuts [mailto:time-nuts-boun...@febo.com] On Behalf Of Thomas D. Erb Sent: Tuesday, October 4, 2016 2:02 PM To: time-nuts@febo.com Subject

Re: [time-nuts] AC line distortion

Maybe a capacitive load in your facility ? Whenever I've looked at it - it's always been pretty clean. For years we used the AC mains for time keeping - but have found in some locations - especially ones with lots of dimmers - zero crossing counting was ineffective. My feeling was that dimmers

Re: [time-nuts] AC line distortion

Jeremy wrote: The result was about 5% distortion for the inverter and 1.5% for the AC line. This got me to wondering, we've discussed the AC power line frequency at length but not other "qualities" of that "signal.' I was surprised that the AC line had so much distortion but it's a subject I've

Re: [time-nuts] AC line distortion [Was: HP 105B Battery, the saga continues]

t: Tuesday, October 4, 2016 3:52 AM To: time-nuts@febo.com Subject: [time-nuts] AC line distortion [Was: HP 105B Battery, the saga continues] As an experiment, I bought an AIMS sine-wave inverter for the 105B Quartz Oscillator. The inverter has a built-in transfer switch that is supposed to allo

[time-nuts] AC line distortion [Was: HP 105B Battery, the saga continues]

As an experiment, I bought an AIMS sine-wave inverter for the 105B Quartz Oscillator. The inverter has a built-in transfer switch that is supposed to allow the load to operate from the AC line and automatically switch to battery/inverter should the AC power line fail. In fact the thing seems