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MEASUREMENT OF SUBSTATION LOAD CURRENT USING AN ANDROID PHONE

To enable the full range of “smart” grid functionality at all levels of the distribution and transmission network it is necessary to have a widespread roll out of measurement of loading. At present, traditional devices are too expensive to install across all 11kV/400V substations. This paper details an approach using the sensors in a typical android mobile phone to detect and measure load current at a cost significantly lower than traditional measurements. The paper covers the theory behind how such an implementation could be undertaken and presents results based on testing in a substation on single phase and three phase cable. The data is manipulated on the phone and then uploaded to a server. Results are encouraging but significant follow on work is needed.