3000W Chinese Gensets Info.

Wayne Dohnal wrote:

Old & Slow wrote:
Is the MOV in the common power strip to be trusted for any possible over voltage with a AVR failure? And if you might tell use, is this the best method to protect our LCD HDTV's?

If I may butt in with an opinion, a MOV isn't a good choice for this type of failure. It is intended more for short, high-voltage spikes, and not for a sustained over-voltage situation. A Wikipedia article says it well: "Some consumers assume that a MOV inside a TVSS device provides equipment with complete power protection. Unfortunately, a MOV device and other types of surge suppressors provide no protection for the connected equipment from sustained over-voltages that may result in damage to that equipment as well as to the protector device. A potential fire hazard also exists."

For long-term (greater than a few milliseconds)under and over voltage protection a power monitor/protector device is needed. I believe Progressive Industries has one, some or all of the 'Surge Guard' brand devices provide this, as do some inverters with automatic transfer switches (Prosine 2.0 for example). Some of these devices have MOVs built in, and some don't. For the very best protection you need the power protector function and the spike suppression provided by the MOVs. With a failed AVR I suspect the MOVs may not be needed, but don't know this for sure.

Thanks Wayne for your input. This might be of interest. It was mentioned in a previous post that it might be possible to capture the peak of a A/C compressor cycling. Yesterday I used my CEN-TECH 95683 Digital Clamp Meter. The genset was a DP3500EC. The batteries were low so it pretty sure the converter/batt chg'er was on full output. I turned on the 13,500 btu A/C on high cool. The electric (comp type) fridge was in operation. I push the peak hold button in and low and behold it hit at one point 62.9 amps. Is perhaps the peak understated on this unit. This is all crazy to me. I took a photo of the reading. Maybe someone with more knowledge of power generation can comment. I assume the peak was for a m/second. No breakers were opened. The genny only had a slight lag. Then to top this off I turned on the MW, no problem. The running amps with the converter, the A/C and electric fridge was 16.9a

This post might be kinda convoluted. On another note, wonder what are the components of the control panel (mother board) on a genset like the ONAN. My old ONAN had a AVR with the control panel. No wonder the inverters are coming.

At this time I'm happy with my two 3500w Chinese gennys.

Floyd