IEC 61850-3
IEC 61850-3 specifically addresses environmental and electromagnetic
interference (EMI) immunity for communications networks and
systems in substations. The EMI immunity requirements are based
on IEC 61000-6-5, which establishes performance criteria for key
functions within the substation. To be compliant with the standard,
critical functions, such as protection relay and control functions,
on-line processing and regulation, as well as metering and network
communication, must experience no delays or data loss when exposed
to various EMI phenomena.
IEEE 1613
IEEE 1613 is another industry standard that establishes EMI immunity
requirements for networking devices in electric power substations.
Included in this standard are ratings, environmental performance
requirements, and testing requirements for compliant communication devices.
According to the IEEE 1613 standard, compliant devices may not
experience permanent damage under EMI stress. Two different classes
of devices are defined in the standard according to how EMI stress
affects performance.
Class 1
Compliant devices in this class may experience some data errors,
losses, or delays under EMI stress conditions.
Class 2
Compliant devices in this class must not experience any data errors,
delays, or losses under EMI stress conditions.
The PowerTrans PT series is compliant with IEC 61850-3 and IEEE
1613 certifications specifying a high level of EMC, shock, and vibration
in power substations.
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The National Electrical Manufacturers Association (NEMA) established
the TS1 standard to define technically adequate and safe traffic control
equipment. The TS2 standard was later introduced to address some
drawbacks of the original guidelines. NEMA TS2 defines controllers,
cabinets, and systems more completely than TS1, promotes better
interchangeability, and allows for future expandability. Section 2 contains
the environmental and testing requirements, including guidelines for
temperature, humidity, voltage, vibration, and shock.
