Why sub.net
sub.net and ten old problems with fault-recorders
Issue 1. Failures through time have been biased towards moving parts and power supplies.
sub.net has no moving parts at all. Its PSU has to supply only 3.7 watts so runs cool anywhere. That is $5 per year to run.
Issue 2. Nobody wants another Master-Station to deal with.
sub.net carries out full analysis on-site within each unit. No master-station is required at all for issues such as fast line-fault repair but sub.net will run on most existing display stations and there is a free solution.
Issue 3. Sequentially fed Master-stations are bottle-necks in critical situations and ‘DATA-OVERLOAD’ will make a disaster worse.
sub.net sends a complete report to suit the precise requirements of the system guardians, maintenance, design and administration personnel. All reports are sent in parallel by email or any other means.
Issue 4. Unclassified fault reports need a lot of often manual sorting.
sub.net reports are easily automatically classified to suit the user’s precise wishes, with irrelevant issues removed as pre-decided but all data is stored for further later analysis if and when required.
Issue 5. installation costs can cost as much or more than the equipment.
sub.net is very small and can be fitted virtually anywhere including poles, underground or in any sub-station at the feeder metering points.
Issue 6. not getting the right information to the right personnel and equipment at the right time causes CML (Customer Minutes Lost)
sub.net automatically sends final reports / raw data as required to speed information – M2M to SCADA, data mining, Smartgrid etc.
Issue 7. lack of integration and consolidation
sub.net includes the majority of features required for most power monitoring necessities and graphically shows how station batteries, relays and circuit breakers behaved during operations in a fault or test situation as well as analysed transients, PQ, network stability, and PMU etc.etc.
Issue 8. a one year warranty with an item which is required to last ten to twenty years is plainly unacceptable.
sub.net offers a five year warranty and has been designed to make available the most common requirements while giving the functionality required by traditional generation, renewables, transmission, distribution, PUE and Industrial applications at a most economic price and still retaining expandability and flexibility.
Issue 9. Customer support from some suppliers can be sadly lacking.
At eMS customers can always talk directly to the designers by phone or email. If unit breaks down it will be replaced as soon as possible no matter who’s fault.
Issue 10. Limitations to expandability and upgrading to suit changing requirements.
sub.net is an embedded software controlled platform which can be made to monitor anything in a sub-station without the need to uninstall. For this reason we do not offer Class A PQM and challenge this requirement which can be costly in requiring annual uninstalling and re-calibration. sub.net is more than adequate for 24/7 monitoring.
Coming soon.
Dissolved gas in transformer oil is coming soon with a clean solid-state device! This will be priced low enough to be of interest across the whole business of electricity supply.




