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2CommentsJoined December 24th, 2015
Off grid electrical power consultant. Retired master electrician grid tied residential, commercial, industrial, SCADA plc, solar, wind, micro grid,pure sinewave inverter switching so fast that clock or computer resets are not nessary
  • D BE commented on lonesoulsurfer's instructable Portable, Solar 12V Battery Pack1 year ago
    Portable, Solar 12V Battery Pack

    Raise the voltage and separate better battery banking from solar cells charging facing South with plug & play devices connections. Pure sinewave inverter split phase in either single or 3 phase that can be stackable for pairael AC amperage increases. Throw in a small windmill and you then have a mini microgrid.

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  • D BE commented on More Cowbell's instructable Easy Generator to Home Hook Up2 years ago
    Easy Generator to Home Hook Up

    Good article and advice. I am a retired master electrician with over 41 years of residential and commercial experience and have a few comments here.(1) #8 gauge wire is not rated for 50/amps NEC 310-16 it has a 40/amp breaker rating. Better to use #6 gauge wire rated for 60/amps but use the 50/amp breaker.(2) Tandem breakers generate more heat then is necessary and some places do not even allow them at all. Any circuit breaker produces heat to the point reached to make it trip. Better to use a subpanel rated for the use designed for.Any load center acts like a heat sink the fastest way to dissipate the heat the more efficient that it will operate. Example step down from main breaker on down with largest 240/volt breakers downward. Cram the wires in the breaker box any which way and you ...

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    Good article and advice. I am a retired master electrician with over 41 years of residential and commercial experience and have a few comments here.(1) #8 gauge wire is not rated for 50/amps NEC 310-16 it has a 40/amp breaker rating. Better to use #6 gauge wire rated for 60/amps but use the 50/amp breaker.(2) Tandem breakers generate more heat then is necessary and some places do not even allow them at all. Any circuit breaker produces heat to the point reached to make it trip. Better to use a subpanel rated for the use designed for.Any load center acts like a heat sink the fastest way to dissipate the heat the more efficient that it will operate. Example step down from main breaker on down with largest 240/volt breakers downward. Cram the wires in the breaker box any which way and you are producing more heat than is necessary.(3) Just because you pull the electrical utility meter does not mean that you have disconnected the neutral conductors white (wires). Also a generator can back feed a utility transformer from secondary 120/240 volt to what ever the primary voltage is. Turn the main breaker OFF by your method here or a transfer switch and then there is no way that the utility transformer can be back feed energized.(4) 2=pvc conduit straps need installed on the outside pvc pipe along with duck seal putty on entrance hole.

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