Generate three phase power by 3 single phase generators?

How to run 3 phase generator with single phase supply:

Many installation sites want power for construction activities. once the positioning not massive all construction equipment’s area unit supercharged with single part offer. Such single part weight unit sets could also be offered. website gets single part offer from utilities for construction. a brand new three phase generator needs a 3 phase power. we’ve 3 weight unit sets of little capacities say ten KVA etc. With this single part weight unit sets will we offer  to a 3 part construction gadget?

Yes, however, it might be possible only if the subsequent conditions area unit met:
1.All 3 single part generators area unit of specifically identical style, desirable factory-made by one manufacturer;
2.If these area unit automatically couples, in tandem, to a standard cause and most importantly;
3.While coupling the 3 such single part generators, tandem bicycle full attention is paid and it’s ensured that the DC Excitation Winding of the every of the the generator is automatically (or physically) therefore situated that the poles of Gen-2 area unit a hundred and twenty degrees displaced from those of the Gen-1 and people of Gen-3 area unit equally therefore situated on be displaced from the poles of Gen-2 by a hundred and twenty degree, within the same direction as those of the Gen-2 area unit displaced from poles of Gen-1 and finally,
4.If of these 3 generators area unit EXCITED by a standard exciter so the one part Voltage developed by every generator is that the same.

Theoretically, however, there is in a different way though extraordinarily pricey and it might be the following:
Each of the 3 1-phase generator is coupled to its individual stepper (used in CNC Machines for actual positioning of job and tool), of enough capability and every the 3 stepper motors area unit then controlled by a specially designed CNC managementler additionally equipped with solid state Excitation Control to take care of identical magnitude of Voltage output from the 3 1-phase generators. Of course, it additionally goes while not spoken communication that every 1-phase generator would have to be compelled to be additionally equipped with transducers for providing feed back to the CNC Controller relating to part location of every generator, rev {of every|of every} and 1-phase ac voltage developed by each yet as excitation dc Voltage of field coil of every of the 3 1-phase generator.

If it’s therefore vital for you to use your offered 3 Single part Generators to supply 3-phase power, you’ll rectify output of every of the one part Generator to supply DC (you could or might not place battery within the circuit) and so use the DC to drive a M.G. Set with DC Motor and 3-phase AC Generator. Also, 3-phase Inverters of huge rating area unit commercially offered lately. you will additionally look at risk of employing a 3-phase electrical converter to Invert the DC into 3-phase AC.

However, you ought to additionally total price of every of those and weigh it against the salvage price of the offered 3 1-phase generators vs price of a 3-phase weight unit Set. Then relying upon what makes business sense additionally, you will hit a correct call.

Imagine that 3 separate single part generators area unit connected well. Then additionally imagine that each one of those area unit 4-pole generators specified for generating power at fifty cycles/second their traditional rev should be 1500 rev. currently imagine that since all 3 area unit driven singly by their own prime movers, their rev can’t be specifically matched and then additionally their part position. If we tend to decision your 3 single part generators by naming them G1, G2 and G3; then rev of those 3 is 1495, 1505 and 1550. currently you’ll imagine yourself regarding what’s going to happen to the 3 phases generated through use of condenser / reactor combination since frequency of every such phases.

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