How to automate HVLV distribution substations using SCADA
How to automate HVLV distribution substations using SCADA
(OP)
Hello!
I wish to thank you for the time and consideration you gave to my question.
I need to know if it is possible for an Electric Utility to use SCADA from a Dispatch Center to automate their HV/LV distribution substations.
In the Dispatch Center, dispatchers can supervise substations by receiving data (e.g. transformers loading, currents, voltages, etc.), and control HV switchgears and LV circuit breakers in the substation by having the possibility to open/close them remotely (e.g. to isolate the transformer in case of a HV or LV disturbance).
Please tell me if there are any Electric Utilities that do this; It would really help me benchmark their experience. Any resources on this subject you could kindly suggest?
Thank you.
Best Regards.
I wish to thank you for the time and consideration you gave to my question.
I need to know if it is possible for an Electric Utility to use SCADA from a Dispatch Center to automate their HV/LV distribution substations.
In the Dispatch Center, dispatchers can supervise substations by receiving data (e.g. transformers loading, currents, voltages, etc.), and control HV switchgears and LV circuit breakers in the substation by having the possibility to open/close them remotely (e.g. to isolate the transformer in case of a HV or LV disturbance).
Please tell me if there are any Electric Utilities that do this; It would really help me benchmark their experience. Any resources on this subject you could kindly suggest?
Thank you.
Best Regards.






RE: How to automate HVLV distribution substations using SCADA
grid automation, station automation.
What is functionality?
RE: How to automate HVLV distribution substations using SCADA
Here it's substation automation.
Functionality: dispatcher receives data about a substation (e.g. transformers loading, currents, voltages, etc.). He is also able to open (respectively: close) the HV switch and LV circuit breaker to isolate (respectively: reconnect) the substation's transformer in case of a disturbance on the HV or LV grid.
RE: How to automate HVLV distribution substations using SCADA
It's remote control, metering and monitoring.
Standard solution of lot of NCC ( national control center )
RE: How to automate HVLV distribution substations using SCADA
Apparently the so-called NCC controls HV/HV and HV/MV substations. Here what I want to control HV/LV substations (typically 22kV/400V).
RE: How to automate HVLV distribution substations using SCADA
you need or RTU ( remote terminal unit) or any good remote IO of PLC.
Its doesn't important, voltage level, rules, are same. only price of devices will be cheaper.
RE: How to automate HVLV distribution substations using SCADA
Do you have any documents or websites to help me understand more?
RE: How to automate HVLV distribution substations using SCADA
Could you please give more details about your objects/stations and we try sent you some examples.
What control and protection devices are used?
RE: How to automate HVLV distribution substations using SCADA
RE: How to automate HVLV distribution substations using SCADA
@slavag: some HV/LV substations have air-insulated switchgears, others have open-air isolators. HV protection uses fuses and switches, LV protection uses fuses and circuit-breakers.
@slavag and @davidbeach: I apologize because my question is confusing, as I am not familiar with SCADA. My question is: Do you know any electric utilities who implemented a SCADA system for their HV/LV distribution substations?
RE: How to automate HVLV distribution substations using SCADA
RE: How to automate HVLV distribution substations using SCADA
RE: How to automate HVLV distribution substations using SCADA
RE: How to automate HVLV distribution substations using SCADA
RE: How to automate HVLV distribution substations using SCADA
Usually used some SCADA is based on PLC, simple and cheaper- Modbus, Profibus, CAN-bus protocols.
For MV in utilities,DMS ( distribution management system ) is used.
As I understood, you can try build something like to island grid, local application.
Do you have digital protective terminals on the MV side?
Do you need resolution of 1ms?
RE: How to automate HVLV distribution substations using SCADA
Hi scientif,
Almost anything is possible, given enough money, time, expertise and patience...
Is you question regarding completely new construction or establishing "supervisory control" of existing equipment?
Clearly, in the first case the system can be designed for remote control and telemetry right from the get-go.
If on the other hand the desire is to add remote control and telemetry where it does not presently exist, you are faced with the prospect of equipment upgrades and/or replacement on a grand [read the word EXPENSIVE!] scale. I'm not at liberty to post any URLs about it or anything, but our utility is, essentially, running a small-scale prototype distribution management system experiment on a portion of our existing rural grid to study the feasibility of doing exactly what you're asking about utility-wide. Incidentally, this only reaches down to the 4.8 kV level.
The experiment is still ongoing, but the preliminary results suggest that the cost of doing this far exceeds the value added, since the density of rural customers served will never justify the expenditure. A municipal or city system, on the other hand, having a much higher density of customers per unit area, can readily make a case for implementing such control.
Hope this helps.
CR
"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]
RE: How to automate HVLV distribution substations using SCADA
Thanks for your reply. Actually we don't have digital protective terminals on the MV side. A resolution of 100 ms would be good for us, because we have more than 2000 MV/LV substations in our distribution system.
Thank you very much for your help. Are there any public documents discussing your utility's experience in using SCADA with MV/LV substations? I can give you my email if needed.
RE: How to automate HVLV distribution substations using SCADA
Afraid not.
You could however have a look at the pages of this vendor; they might be helful. Disclaimer: I am not associated with this company in any way.
http://www2.schneider-electric.com/sites/country/e...
CR
"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]
RE: How to automate HVLV distribution substations using SCADA
RE: How to automate HVLV distribution substations using SCADA
You might want to involve an electrical engineer in the design phase, as there are alot of variables that need to be considered.
Good luck.
Rick Miell
RE: How to automate HVLV distribution substations using SCADA
If in Europe I would recomend also ABB and Sprecher Automation
We are expecting a similar project, but from much smaller scale so I definitely know it is possible
------------------------
It may be like this in theory and practice, but in real life it is completely different.
The favourite sentence of my army sergeant