NPRR #81 · Revision Request

NPRR081 Automatic Voltage Regulator (AVR) Status

Approved sponsor ERCOT Staff posted 2007-08-31 ercot.com

ReasonNERC Reliability Standard VAR-001-1, Requirements R4, R6 and R6.1 require the Transmission Operator to know the status of all transmission Reactive Power resources, including the status of AVRs on generators. In addition, NERC Reliability Standard VAR-002-1, to become effective 8/2/07, requires the Generator Operator to "…operate each generator connected to the interconnected transmission system in the automatic voltage control mode (automatic voltage regulator in service and controlling voltage)…" The requirement does not state that telemetry must be installed in order to be in compliance with this standard. However, installing telemetry which can be archived for historical and auditing purposes, provides a better tracking means than using ERCOT and participant logs. During the PRS discussion of PRR732, Automatic Voltage Regulator (AVR) Status -- Compliance with NERC Reliability Standards PRS agreed that telemetry would facilitate compliance with NERC requirements and will eliminate any question whether ERCOT has captured all data required by NERC. Market Participants and ERCOT agreed that Market Participants should be given sufficient time to install the telemetry technology and such a transition period will extend to the start of the Texas Nodal Market. Therefore, this issue should be addressed in the Nodal Protocols. This NPRR addresses this issue. Facilitates compliance to NERC Reliability Standards

Created2007-09-20

Approved2008-03-18

Sections Affected

3.15.3QSE Responsibilities Related to Voltage Support

Summary

This NPRR adds a requirement for telemetry of Generation Resource AVR status to comply with North American Electric Reliability Corporation (NERC) Reliability Standards.

Timeline

Aug 31 '07
PRSFiled by ERCOT Staff
- 081NPRR-01 Automatic Voltage Regulator (AVR) Status 083107 Aug 31 '07 · Revision Request
Sep 10 '07
Listed without action at 1 meeting
- TPTF Meeting Sep 10 '07
Sep 20 '07
PRS PRS Meeting
PRSRecommended for Approval Recommended for approval
“To recommend approval of NPRR081 as revised by TPTF and PRS.” — Passed

→ PRS review of the Recommendation Report and Impact Analysis
- 081NPRR-03 TPTF Comments 091007 Sep 11 '07 · Revision Request Comments
- 081NPRR-02 TPTF Voting Ballot 091007 Sep 14 '07 · Revision Request Ballot
Oct 18 '07
PRS PRS Meeting
- 081NPRR-04 PRS Recommendation Report 092007 Sep 25 '07 · Committee Report
Nov 15 '07
PRS PRS Meeting
PRSRecommended for Approval Forwarded → TAC
“To forward the Recommendation Report and IA to TAC.” — Passed
- 081NPRR-05 Impact Analysis 110807 Nov 8 '07 · Staff Report
Nov 29 '07
TAC TAC Meeting
TACReferred Referred → ROS
“To refer NPRR081 to ROS pending deliverables from the Power System Stabilizer (PSS) Task Force.” — Passed
- 081NPRR-06 PRS Recommendation Report 111507 Nov 19 '07 · Committee Report
Jan 10 '08
ROS ROS Meeting
- 081NPRR-07 TAC Action Report 112907 Nov 30 '07 · Committee Report
Feb 14 '08
ROS ROS Meeting
ROS Recommended for approval
“To submit comments recommending revised language.” — Passed

→ TAC consideration of NPRR081
Mar 6 '08
TAC TAC Meeting
TACRecommended for Approval Recommended for approval Amended by the ROS comments
“To recommend approval as revised by ROS comments.” — Passed

→ ERCOT Board consideration of NPRR081
- 081PRR-08 ROS Comments 021908 Feb 19 '08 · Revision Request Comments
Mar 18 '08
BOARD Board of Directors Meeting
BOARDApproved Recommended for approval
“Approve as recommended by TAC.” — Passed
- 081NPRR-09 TAC Recommendation Report 030608 Mar 7 '08 · Committee Report
- 081NPRR-10 Board Action Report 031808 Mar 18 '08 · Committee Report