Meeting Report: A talk on EMC standards harmonization (IEEE 1613-2013)
|September 29, 2014||Posted by Tribuwan under COMSOC, CS, General, PES, Region 6||
IEEE Foothill Society PES Chapter and CalPoly, Pomona student PES chapter sponsored a talk on EMC standards harmonization, at Cal Poly, Pomona, Building 17, room 1631 on the 27th September, 2014. The meeting was attended by about 20 people, from electrical utility, consultants, CalPoly students and professors.
The talk was delivered by Jerry Ramie, from Arctechnical from San Jose, CA. Jeery has been a member of the standard drafting committee.
The impacted standards are IEEE 1613(2013), IEC61850-3, IEC 61000-4-8, IEEE C37.90.2, which define immunity test specification and requirements for interference immunity against conduction, radiation, Magnetic fields, ESD, EFT, Electrical surges for equipment using communication port for communicating to any equipment on networks in electric power substations, using any communication medium.
IEEE 1613 is an industry standard for communicating devices on a electrical power substation networks. It specifies ratings, performance requirements, testing requirements for communicating devices. The standard specifies two types of devices based on an outcome of a specific type of EMI stress tests designed to simulate EMI stress actually being experienced in a substation environment.
Class 1 devices: These devices are allowed to experience data errors, losses, or delays when exposed to EMI stress.
Class 2 – These devices must provide error free service ( No data error, delays or loss of data), when subjected to the EMI stress test.
Jerry discussed in brief about the standard from IEEE and IEC dealing with EMI stress, switching surges, Electromagnetic interference around the communicating equipment in a substation environment. He also talked about the gaps in specification and testing requirements between those standards, regarding class and interference levels on signals in conducting media, electromagnetic fields or other common mode disturbances.
Then he talked about immunity test specifications and setups to carry out the test for
1. Surge Immunity Test ( Switching/ Lightening) due to (direct/ Indirect/Earth current) impacts
2. Conducted Radio Frequency immunity tests on coupled/ decoupled networks, direct current injection, bulk current injection.
3. Magnetic fields – Rotating, Oscillatory damped or undammed magnetic field impacts on 50 Hz and extrapolated 60 Hz frequency.
4. Conducted common mode disturbances generated by electrical equipment in a substation ( DC & 15 Hz to 150 kHz testing requirement)
After the talk there was quite an interesting exchange in the Q&A session, where the gaps in the current smart meters were discussed and also the need to marry the American and European communication standards.