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Installation of a generator for a house.

Tomgunn
Hello all,


I'm moving house, (been here for over 42 years'!!), and one of the first items on my mind is installing an electrical generator.


SO; I guess there will be contactors / switch gear etc as I would like it to be 'automatic', (OR, maybe 'manual' too), changing from incoming to the generator.


a; What would be the best type of generator to purchase? Load wise? I'm not too worried as the bigger the load the bigger the           generator would need to be as long as I could run the basics within the house.


b; What switch gear would be appropriate?


I would't fancy the idea of switching tails around on a Henley block each time I needed the generator to be in use!!


Thanks, in advance!


regards... Tom
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    As the revs are supposed to stay constant under load to maintain frequency, to put more power out  the current in the armature  rises and the fuel flow is increased, to match the higher torque - if you like a simple picture the rotating magnetic field has to  become stronger, and so the effort to turn it is greater. so is the stored energy.

    In some gensets this is explicit as there are brushes onto slip rings for the rotor, but for more common induction designs, the same effect is achieved by the sliding phase shift - rather like the not quite synchronous 3 phase induction motor but in reverse.

    The PSSC is low enough that to operate  that B32 breaker takes a what would be a good few cycles of 50Hz if it was not slowing down significantly during the breaker operating time, you will  probably not be in the magnetic instant trip part of the curve, so it is not just the flywheel and rotor inertia, but also a few good kicks of the pistons onto the crankshafts - and that is when the stall vs falter but keep going, or indeed snap the shear pin, all depends rather on the throttle setting...

    M.
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  • 0


    As the revs are supposed to stay constant under load to maintain frequency, to put more power out  the current in the armature  rises and the fuel flow is increased, to match the higher torque - if you like a simple picture the rotating magnetic field has to  become stronger, and so the effort to turn it is greater. so is the stored energy.

    In some gensets this is explicit as there are brushes onto slip rings for the rotor, but for more common induction designs, the same effect is achieved by the sliding phase shift - rather like the not quite synchronous 3 phase induction motor but in reverse.

    The PSSC is low enough that to operate  that B32 breaker takes a what would be a good few cycles of 50Hz if it was not slowing down significantly during the breaker operating time, you will  probably not be in the magnetic instant trip part of the curve, so it is not just the flywheel and rotor inertia, but also a few good kicks of the pistons onto the crankshafts - and that is when the stall vs falter but keep going, or indeed snap the shear pin, all depends rather on the throttle setting...

    M.
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