Wi Fi

Possible Applications and Limitations of Wi-Fi Communications in IEC 61850 Systems

by R. Persello, Fred Steinhauser, OMICRON electronics GmbH, Austria

Not so long ago, it was often required to deposit mobile phones outside the control room or relay house when working in a substation. There were alleged stories about control systems malfunctioning when a mobile phone in the room picked up a call. Well, the systems in operation 20 years back were obviously not all yet built according to the EMC standards of today. So, there was a certain degree of anxiety and refusal when it came to the idea of applying wireless communication in substations. More

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