Chris Pearson:
John Peckham:
My interest is how can the neutral potential on a PME system rise more than a few volts under fault free conditions given the neutral is connected to a low resistance Earth electrode at the transformer and in addition there are electrodes connected to the neutral along the service cable, the M in PME, which are designed to keep the neutral at Earth potential?I have been pondering this question whilst awaiting an erudite response from the experts, but as Mike has posted above, I don't think that the voltage can rise by much under fault-free conditions. It takes only a few volts to shove the electrons back to the transformer. ?
If the N potential did rise, would the L rise with it, in which case appliances would still work; or if not, would we have dim lights and kettles which takes ages to boil?
Now then John, you must have had a reason for raising the question - what was it please?
Chris Pearson:
John Peckham:
My interest is how can the neutral potential on a PME system rise more than a few volts under fault free conditions given the neutral is connected to a low resistance Earth electrode at the transformer and in addition there are electrodes connected to the neutral along the service cable, the M in PME, which are designed to keep the neutral at Earth potential?I have been pondering this question whilst awaiting an erudite response from the experts, but as Mike has posted above, I don't think that the voltage can rise by much under fault-free conditions. It takes only a few volts to shove the electrons back to the transformer. ?
If the N potential did rise, would the L rise with it, in which case appliances would still work; or if not, would we have dim lights and kettles which takes ages to boil?
Now then John, you must have had a reason for raising the question - what was it please?
We're about to take you to the IET registration website. Don't worry though, you'll be sent straight back to the community after completing the registration.
Continue to the IET registration site