IEEE 1564 Draft 2Chapter 1: OverviewChapter 2: ReferencesChapter 3: DefinitionsChapter 4: Summary of the procedureChapter 5: Samples voltagesChapter 6: Event characteristics versus time

• IEC 61000-4-30• three-phase measurements• phase-angle jump

Chapter 7: Single-event indices• IEC 61000-4-30• three-phase measurements• additional characteristics• single-index methods

Chapter 8: Site indices• aggregation• SARFI• voltage-sag co-ordination chart• voltage-sag tables• single-index methods

Chapter 9: System indices• site selection and weighting

Chapter 10: Bibliography

Chapter 6 issuesevent characteristics

1. How much of IEC 61000-4-30 do we include ?proposal: include the whole document as far as

voltage dips are concerned

2. How much do we add to IEC 61000-4-30 ?proposal: define all the additional characteristics

that are mentioned in the appendix to theIEC document. Describe “phase-angle jump”in more detail

3. Additional methods for three-phase measurements ?proposal: introduce three-phase measurements as a

special case of multi-phase measurements.

4. Overlap with (scope of) IEEE 1159 ?proposal: add to IEEE 1564 what we need even if it

falls under the 1159 scope. Remove from 1564when the 1159-document later includes it.

Chapter 7 issuessingle-event indices

1. How much of IEC 61000-4-30 do we include ?proposal: include all of IEC 61000-4-30

2. Pre-event or nominal voltage as a reference ?proposal: use nominal voltage as default but

mention pre-event as an option.

3. Additional indices (i.e. next to remaining voltageand duration) ?

proposal: co-ordinate with Chapter 6

4. Alternative indices ?proposal: define a number of single-index methods

as an alternative (guide versus recommendedpractice)

Chapter 8 issuessite indices

1. Do we use SARFI, Unipede table orvoltage-sag contour chart as a basis ?

proposal: describe all three methods for the firstversion of the document, give advantagesand disadvantages plus methods fortranslating from one method to another.

2. Aggregation methods ?proposal: define the aggregation methods very

clearly, leave open the choice of time aggregation window, etc.

Chapter 9 issuesSystem Indices

1. Choice of sites and choice of weighting factors ?proposal: needs further discussion and possibly

further research

General issues1. recommended practice, guide or informative ?proposal: IEC 61000-4-30 is recommended practice

some of the other sections as well. Otherparts are guide and some are onlyinformative.Each chapter selects normative andinformative parts.

2. Definitions ?proposal: use IEC 61000-4-30 definitions plus

existing IEEE definitions as a basis. Eachchapter selects terms to be defined.

3. How wide do we go with this document ?proposal: one main line (IEC + SARFI ?) with

a number of additional indices andalternatives.