Pilot Experiences with Station Monitoring and NERC PRC-005-2 Tony - - PowerPoint PPT Presentation

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Jun 19, 2023 229 likes •415 views

Pilot Experiences with Station Monitoring and NERC PRC-005-2 Tony Pink Dynamic Ratings Monitoring, Control and Communications Solutions for Electrical Power Apparatus Why Consider Battery Monitoring NERC PRC-005-2 NERC Evidence

SLIDE 1

Monitoring, Control and Communications Solutions for Electrical Power Apparatus

Pilot Experiences with Station Monitoring and NERC PRC-005-2

Tony Pink – Dynamic Ratings

SLIDE 2

Monitoring, Control and Communications Solutions for Electrical Power Apparatus

Why Consider Battery Monitoring

NERC PRC-005-2
NERC Evidence Retention Requirement
Reduction in Maintenance Budgets
Personnel Reassignment
Decline of Specialist Crafts Personnel
Consistency of Data
Real-time Information
Ability to Act in a Timely Manner to Issues

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

Protection System – Station dc supply associated with protective functions (including batteries, battery chargers, and non-battery-based dc supply) PSMP – Protection System Maintenance Program – Includes all batteries associated with the protection system – Batteries must be included in a time-based program Verify — Determine that the component is functioning correctly. Monitor — Observe the routine in-service operation of the component.

NERC Definitions

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

Comparison of Tasks for Vented Lead Acid (VLA) Batteries

Task Non-Monitored Max Interval Monitored Max Interval Verify dc supply voltage, Inspect electrolyte levels and for unintentional grounds 4 calendar months No Periodic maintenance specified Verify battery float voltage, continuity, terminal connection resistance, intercell or unit to unit connection resistance Inspect cell condition where visible or perform an performance by internal ohmic test if not visible 18 calendar months Verify Performance by ohmic testing or float current <or> Perform Load Test 18 calendar months <or> 6 calendar years Inspect condition of battery rack 18 calendar months 18 calendar months

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

Comparison of Tasks for Valve Regulated Lead Acid (VRLA) Batteries

Task Non-Monitored Max Interval Monitored Max Interval Verify dc supply voltage, for unintentional grounds 4 calendar months No Periodic maintenance specified Inspect condition of individual units by measuring internal ohmic values 6 calendar months Verify battery float voltage, continuity, terminal resistance, intercell or unit to unit connection resistance 18 calendar months Verify performance by internal ohmic test or float current against baseline <or> Load Test 6 months <or> 3 calendar years Inspect condition of battery rack 18 calendar months 18 calendar months

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

Comparison of Tasks for Nickel Cadmium (NiCd) Batteries

Task Non-Monitored Max Interval Monitored Max Interval Verify dc supply voltage Inspect electrolyte levels and for unintentional grounds 4 calendar months No Periodic maintenance specified Verify battery float voltage, continuity, terminal resistance, intercell or unit to unit connection resistance Inspect cell condition of all individual batteries and physical condition of rack 18 calendar months Load Test 6 calendar years 6 calendar years

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

Collateral Benefits

Monitor over Corporate, Non-Secure Network
Programmable Dry Contacts
Confirmation of Quality of Ohmic Testing
Ensure Proper Charging Voltage

– THE No. 1 Cause of Battery Failure is Improper Charging

Ability to Evaluate Battery Manufacturing Quality
Ability to Remotely Monitor Battery Room or Control Room Temperature
Interconnection of Other Sensors such as Hydrogen Detectors

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

Comparison of Monitor to Handheld Ohmic Test

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

Evaluation of Battery Quality

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

Consolidates Data from Battery

Monitor

Develops Health Scores of

Battery Strings for Ranking Purposes

Identifies
String Status
Charger Status
Individual Cell Status
Provides NERC Report

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

Individual Cell Information

Ohmic Values with Upper and Lower Limits and Baseline Values Cell Voltages with Upper and Lower Limits Statistical Summary

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

Drill Down Into Specific Cell or Jar

Sliding Time Scale of Cell Ohmic Values with Upper and Lower Limits and Baseline Values Sliding Time Scale of Cell Voltage with Upper and Lower

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

String Information

Summary of Major Parameters

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

String Information (continued)

Multi-Parameter Display including Charging Current, Temperatures and Overall Voltage

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

NERC Reporting

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

IEEE Standard 1491

IEEE Guide for Selection and Use of Battery Monitoring Equipment in Stationary Applications

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

Pilot Experiences with Station Monitoring and NERC PRC-005-2

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Monitoring, Control and Communications Solutions for Electrical Power Apparatus

References

NERC PRC-005-2, adopted November 7, 2012
NERC Glossary of Terms Used in NERC Reliability Standards, updated February 11, 2013
NERC Protection System Maintenance, A Technical Reference, September 13, 2007
IEEE Std 1491, IEEE Guide for Selection and Use of Battery Monitoring Equipment in

Stationary Applications

IEEE Std 450, IEEE Recommended Practice for Maintenance, Testing and Replacement of

Vented Lead-Acid Batteries for Stationary Applications

IEEE Std 1106, IEEE Recommended Practice for Maintenance, Testing and Replacement of

Vented Nickel-Cadmium Batteries for Stationary Applications

IEEE Std 1187, IEEE Recommended Practice for Maintenance, Testing and Replacement of

Valve-Regulated Lead-Acid Batteries for Stationary Applications