James Graham, P.E. Standards Coordinator Transformers Committee
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1 James Graham, P.E. Standards Coordinator Transformers Committee
2 Standards approved PARs approved Ballot Status PARs Status Standards Status
3 NEW Standards approved PC REVISIONS approved - Standard for Current Transformers with a Maximum ma Secondary Current of 250mA C Standard for Submersible Single-Phase Transformers: 250 kva and Smaller; High Voltage GrdY/19 920V and Below; Low Voltage 600 V and Below PC PC Guide for Application of Transformer Connections in Three-Phase Electrical Systems Guide for the Detection, Location and Interpretation of Sources of Acoustic Emissions from Electrical Discharges in Power Transformers and Power Reactors NOTE: Standards have a life of Ten (10) Years
4 Pending Standards Approvals C PC PC57.93 Standard for Submersible Equipment - Enclosure Integrity (on the 2 May, 2019 RevCom agenda) Guide for Mechanical Interchangeability of Ventilated Dry Type Transformers (on the 2 May, 2019 RevCom agenda) Guide for Installation and Maintenance of Liquid- Immersed Power Transformers (on the 20 March, 2019 RevCom agenda) P Tap-Changers - Part 2: Application Guide (on the 2 May, 2019 RevCom agenda)
5 PARs for New Standards (approved until 31 December, 2020) PC PARs for Revisions Guide for the Selection of Neutral-Grounding Devices for High Voltage Direct Current (HVDC) Converter Transformers (Entity) (All expire as noted) PC Standard for Overhead-Type Distribution Transformers 500 kva and Smaller: High Voltage, V and Below; Low Voltage, 7970/13 800Y V and Below (expires 2023) PC Standard for Submersible, Three-Phase Transformers, 3750 kva and Smaller: High Voltage, GrdY/ Volts and Below; Low Voltage, 600 Volts and Below (expires 2023) All PARs have a life of 4 Years
6 PARs for Revisions (approved until 31 December, 2020) PC Standard for Pole-Mounted Equipment - Enclosure Integrity for Coastal Environments (expires 2023) PC Standard for Pole Mounted Equipment - Enclosure Integrity (expires 2023) PC57.98 PC Guide for Transformer Impulse Tests (expires 2022) Standard Test Procedure for the Thermal Evaluation of Insulation Systems for Liquid- Immersed Distribution, Power and Regulating Transformers (expires 2022)
7 PAR Extensions approved (extended as noted) P1276 Guide for the Application of High-Temperature Insulation Materials in Liquid-Immersed Distribution, Power and Regulating Transformers (December 2020) P Tap-Changers - Part 2: Application Guide (December 2019) PC PC PC57.21 Standard for Submersible Single-Phase Transformers: 250 kva and Smaller; High Voltage GrdY/19 920V and Below; Low Voltage 600 V and Below (December 2019) Guide for Mechanical Interchangeability of Ventilated Dry Type Transformers (December 2020) Standard Requirements, Terminology, and Test Code for Shunt Reactors Rated Over 500 kva (December 2020)
8 PAR Modifications approved (Modifications do not change the expiration date) PC Guide for the Interpretation of Gases Generated in Oil- Immersed Transformers PC Standard Requirements for Station Service Voltage Transformers PARs for Corrigenda approved (none)
9 PC PC PC PC Standard for Network, Three-Phase Transformers, 2500 kva and Smaller; High Voltage, V and Below; Low Voltage, 600 V and Below; Subway and Vault Types (Liquid Immersed) Standard Requirements for Station Service Voltage Transformers Guide for Application of Power Apparatus Bushings Guide for Determination of Maximum Winding Temperature Rise in Liquid-Immersed Transformers PC /Cor 1 Standard Requirements for Instrument Transformers
10 PARs have a four year life cycle, from the calendar year of Standards Board approval. A PAR approved in January 2019 expires December 31, A PAR approved in December 2019 expires December 31, Standards have a ten year life cycle, from the calendar year of Standards Board Example: C Approved 09/28/2017 Expires 12/31/2027
11 Stds. Board Meeting Submission Deadline May 2019 (teleconference) 22 March, 2019 June May, 2019 September 2019 (teleconference) 26 July, 2019 November September, 2019 Note the last submission deadline is one month earlier this year. The next Transformers Committee meeting is October, 2019
12 September 17 th 2019
13 Status - Active PARs (refer to page 6 of the standards report) 53 Active PARS as of March 21,2019 On a RevCom Agenda - 4 In Comment Resolution - 3 In Recirculation review - 1 In Sponsor Ballot - 1 Draft Development - 44
14 Active PARS - Ballot Status (refer to page 5 of the standards report) Nine activities in sponsor ballot as of 21 March, activities are on a RevCom agenda 3 activities are in sponsor ballot comment resolution 1 activity is in sponsor ballot recirculation 1 activity is in sponsor ballot
15 Status - Active PARs (refer to page 6 of the standards report) 53 Active PARS as of 21 March, PARs expire December 31, 2019 Draft Development - 3 In Comment Resolution - 1 In Ballot Recirculation - 1 On a RevCom Agenda - 2
16 Status - Active PARs (refer to page 6 of the standards report) 53 Active PARS as of 21 March, PARs expire December 31, 2020 Draft Development - 11 In Comment Resolution - 1 In Sponsor Ballot - 1 On a RevCom Agenda - 2
17 Status - Active PARs (refer to page 6 of the standards report) 53 Active PARS as of 21 March, PARs expire December 31, 2021 Draft Development Active PARS as of 21 March, PARs expire December 31, 2022 Draft Development - 11
18 Status Standards (refer to page 13 of the standards report) 7 Incomplete Standards expired in standard intentionally allowed to expire 3 standards are on a RevCom agenda 1 standard is in sponsor ballot recirculation 1 standard is in sponsor ballot comment resolution 1 standard is in sponsor ballot
19 Status Standards (refer to page 13 of the standards report) 6 Standards scheduled to expire in standards are in draft development 2 standards will intentionally expire in Dec Standards expire in standards are in WG draft development 3 standards have no active PARS
20 Status Standards (refer to page 13 of the standards report) 10 Standards scheduled to expire in standard is on a NesCom agenda 7 standards are in draft development 2 have no active PAR 10 Standards scheduled to expire in standard is on a NesCom agenda 5 standards are in draft development 2 have no active PAR
21 I. IEEE Copyright Policy Malia Zaman II. WG Basics: The PAR Process Jim Graham Q&A - all
22 I. Starting a Working Group II. WG Officer Duties III. AMS Training Q&A - all
23 James Graham, P.E. Transformers Committee Standards Coordinator
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