Ralph_Day
02-17-2009, 05:10 PM
Hi
I live off grid, solar wind diesel genset. I found during an injector pump rebuild that a portable emergency generator would be a valuable addition to the system. During the down time it was sunny and windy...phew!
The primary genset is Simpower 10kw, 3cyl Nissan motor. Very good voltage regulation and frequency holding. The emergency unit i bought is a Subaru Robin 5000watt unit. It's voltage regulation is via condensors (capacitors). The company literature says these are not the best for electronic loads...guess what an inverter/charger load is? The dealer didn't know his product line in depth...should have sold me an inverter generator!]
The problem with the SR unit was first frequency...the engine was turning over too fast...the frequency as measured by Kill-a-watt meter was over 63Hz. By constructing a throttle stop I could get the frequency where I wanted it, about 61Hz no load. The voltage then would be in the 230-235vac range...great. When load is applied the frequency would jump 20volts to the 245-250v range.
Does anyone else have this kind of experience with condensor/capacitor type voltage regulator function? Any workarounds to control the voltage better? Any problems with home electronics, inverter/chargers etc?
Xantrex 4048 inverter by the way.
Thanks for any responses.
Ralph
I live off grid, solar wind diesel genset. I found during an injector pump rebuild that a portable emergency generator would be a valuable addition to the system. During the down time it was sunny and windy...phew!
The primary genset is Simpower 10kw, 3cyl Nissan motor. Very good voltage regulation and frequency holding. The emergency unit i bought is a Subaru Robin 5000watt unit. It's voltage regulation is via condensors (capacitors). The company literature says these are not the best for electronic loads...guess what an inverter/charger load is? The dealer didn't know his product line in depth...should have sold me an inverter generator!]
The problem with the SR unit was first frequency...the engine was turning over too fast...the frequency as measured by Kill-a-watt meter was over 63Hz. By constructing a throttle stop I could get the frequency where I wanted it, about 61Hz no load. The voltage then would be in the 230-235vac range...great. When load is applied the frequency would jump 20volts to the 245-250v range.
Does anyone else have this kind of experience with condensor/capacitor type voltage regulator function? Any workarounds to control the voltage better? Any problems with home electronics, inverter/chargers etc?
Xantrex 4048 inverter by the way.
Thanks for any responses.
Ralph