G59 long term operation?

[maunsell]

Guys

picture the scene!

Two sockets side by side, one on a essential circuit one on non essential.

under normal conditions loss of mains the generator picks up the essential load only. Ahhhh , but what if we load test the building with both the set and mains, do we have to syncronise the genset with the mains for long term operation?

consider his, the two sockets side by side, above a patient and connected to thses sockets is monitoring equipment ( whom happen to connected to the different energy sources?

Do these energy sources need to be in synch. or does the earthing/neutral arrangements need to be configured accordingly?

Answers on a postcard.

Mark

 

[busbar]

 
Synchronization shouldn’t matter in ANSI systems; anymore than a fixed 120° [or 180°] from differing phases. Both receptacles better have a solidly-grounded conductor on one terminal, or there will be plenty of other problems to contend with.

Sorry, but what is “G59”?

 

[maunsell]

its the engineering council's guidance note for connection of local embedded generation.

the bit that i am confused with is the neutral/earthing arrangement. The problem being circulating currents that may exist along with a different earth potential !

Mark

 

[rbulsara]

Are you saying that the equipment you are plugging is a dual cord device?

If it is so and if it is desinged like dual cord server (computers) than it should not matter whether or not the two sources are in synch. You should refer to the manual of the equipment and verify with the manufacturer, however.