Power Line Carrier Communication from 11kV to 400V
Power Line Carrier Communication from 11kV to 400V
(OP)
Can power line carrier communication (PLCC) be used to transfer a signal from an 11kV power system to a 400V power system? The application I am investigating is to see if a blocking signal can be sent from an 11kV CB to a distributed generator at 400V. What would the limiting factors be in this scenario? I.e. Does the voltage change cause problems for the PLCC? Does the distance of the line limit over where this could be applied? Would noise be an issue in this application?






RE: Power Line Carrier Communication from 11kV to 400V
RE: Power Line Carrier Communication from 11kV to 400V
Have you considered other methods such as radio / microwave, fiber? How far is your run between 11kV and 400V?
RE: Power Line Carrier Communication from 11kV to 400V
The run would be variable depending on the length of the feeder. The communication system would need to communicate between the circuit breaker at the start of the feeder to homes on the LV spurs off the main feeder.
RE: Power Line Carrier Communication from 11kV to 400V
What kind of blocking signal is this? I have seen many which require that if the 11kV breaker trips and aux contact from 11kV CB goes to feeder breakers to trip them, or prevent close. This is generally accomplished via point to point wiring, however the distances are short. When you mention that security is not so important, do you have confirmation for the grid operator that this is acceptable? There are worker safety issues regarding dumping all sources of energy, if the grid operator needs to do emergency repair work, etc.