The clause emphasises the application for ECT & EVT.
However given the new extended series of T Logical Nodes, this should be more clearly described as applying to other sensors as well (temperature, pressure....)
This part of IEC 61850 applies to all electronic sensors related to process measurements of the T Logical Node group having a digital Sampled Value output stream such as physical sensors, current and voltage transformers, merging units, or devices acting as T group publishers as well as subscribing intelligent electronic devices, for example protection units, bay controllers and meters.
18 Sep 15
In Force (green)
Accepted for edition 2.1
19 Aug 15
I agree it should reconsider in Ed2.1
9-2 Ed2.1 will also contains the phasor stream defined in TR 61850-90-5