1
\$\begingroup\$

I'm here for help solving the problem of suppling a 240v, 45amp kiln off the grid. The catch is, we can't just use a large portable generator. So,

-can you put three or more inverter generators in parallel?

-can you get 240 volts out of paralleled 120volt inverter generators? Is there equipment that can do this? (transformer?)

-can you put inverter generators into series to raise voltage?

-how would you supply 240volts and 50amps of power off grid if you couldn't use without a large portable generator?

Any ideas/suggests welcome.

\$\endgroup\$
  • 1
    \$\begingroup\$ You need a method to synchronize them, which will not be cheap. \$\endgroup\$ – Ron Beyer Jun 7 at 19:13
  • 4
    \$\begingroup\$ Yes, you can parallel inverters, but it's not trivial. If doing something involving a kiln off-grid, give some thought to using actual fire instead of electricity for it. \$\endgroup\$ – Hearth Jun 7 at 19:15
  • \$\begingroup\$ Some Honda generators come with this feature. Don’t know if they scale all the way up to 50 A though. \$\endgroup\$ – winny Jun 7 at 19:16
  • \$\begingroup\$ Some models of Honda's inverter generators can be paralleled - but I don't think you can get 50 Amps - don't know about 240 volts, either. \$\endgroup\$ – Peter Bennett Jun 7 at 19:17
  • 2
    \$\begingroup\$ Is it a single heating element or a multiple that could each be run from a separate supply? \$\endgroup\$ – Finbarr Jun 7 at 19:25
2
\$\begingroup\$

Consider a large propane fired burner as the main heat flux, then drop the electric needs to just temperature regulation.

| improve this answer | |
\$\endgroup\$
0
\$\begingroup\$

Can you use a gas operated kiln? With some modifications you might be able to rectify the AC to DC, so it would be easier to run generators in parallel to heat a resistive load. With AC you would have to synchronize frequency and phase.

| improve this answer | |
\$\endgroup\$
  • \$\begingroup\$ I generally consider "off grid" to mean no connection to the electric or gas utilities, but if that's not the case this is a good answer too. \$\endgroup\$ – Hearth Jun 7 at 19:50
  • \$\begingroup\$ True, I guess it often means that you don't want to depend on consumables like gas bottles, so you'd have to produce the gas yourself. In temporary situation a ~10 kg gas bottle will you get you pretty far. \$\endgroup\$ – Ralph Jun 10 at 20:14

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.