Introduction to pc-GAR and pc-GAR MT

Introduction to pc-GAR and Introduction to pc-GAR and pc-GAR MTpc-GAR MT

G. Michael CurleyManager of GADS ServicesOctober 29, 2010

Data SourcesData Sources

GADS

Generator “B”

Generator “A”

Generator “C”

Generator “D”

Generator “E”

280+ Generators Reporting 5,800+ units,including international affiliates.

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What is pc-GAR? What is pc-GAR?

Unique software product to allow access to the data collected in the GADS database.

It reports equipment outage information for the purpose of improving electric power output.

pc-G.A.R

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Why pc-GAR? Why pc-GAR?

Introduced in 1992

Created to:

• Reduce the number of special studies produced annually.

• Allow users quick access to GADS information.

• Increase the need to maintain good outage records.

Only one of it’s kind in the world!

• WEC wants to follow this example

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With data mining, you take advantageof past experience …

you learn from the past to prepare for the future.

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Unit Types Available (12 choices)Unit Types Available (12 choices)

Fossil

Fluidized bed fossil

Nuclear

Gas Turbine

Jet Engine

Diesel

Hydro

Pumped Storage

Combined Cycle

Geothermal

Co-generator

Multi-boiler/Multi-turbine

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Units SelectionsUnits Selections

All Including Own

All Except Own

Own Units

United States Only

Canada Only

2 Regions required for analysis

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Two Types of VariablesTwo Types of Variables

Class

• “Yes” or “No” types

• Super or sub-critical

• General Electric or other manufacturer

• Balanced or pressurized draft

Continuous

• Range

• MW size (1-1400 MW)

• Steam Pressure (1-3600 psig)

• EAF (0-100%)

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Three Groups of Criteria SelectionThree Groups of Criteria Selection

Physical (class)

• Example: # of pumps

Performance (continuous)

• Example: # of service hours

Statistics (continuous)

• Example: EFOR

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Help with pc-GAR

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Help #1 – Selecting FuelsHelp #1 – Selecting Fuels

Two fuel selections

• “As designed” means what the unit was designed to burn.

• “Actual fuel burned” means what did the unit actually burn in the specific year.

100% of the “actual burned” fuels

90% of the “designed fuels”

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Help #1 – Selecting FuelsHelp #1 – Selecting Fuels

Actual Fuel Burned Design Fuel

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Help #2 – Apply Criteria By…Help #2 – Apply Criteria By…

You can apply the performance/fuel criteria by either year or range.

• Year – tests the criteria on a year by year basis. A unit may pass the test one year but not the next. Only the one year where it passed will be in the survey.

• Range – tests the criteria on the average for the period you selected. If you picked a 5-year period for an EAF > 85%, then the average EAF for the period is tested. If it fails, that unit will be removed from the survey.

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Help #2 – Apply Criteria By…Help #2 – Apply Criteria By…

EAF = 90.40%

EAF = 87.56%

EAF = 84.55%

EAF = 85.98%

EAF = 86.91%

If criteria includedEAF of 85% or greater, then 3 of 4 years accepted using“Year” button.

If criteria includedEAF of 85% or greater, then average EAFof 4 years accepted using“Range” button.

Accepted

Accepted

Accepted

Accepted

Rejected

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Help #3 – for Years/for PeriodsHelp #3 – for Years/for Periods

Events and performance data are divided into monthly intervals for retrieving and analyzing data by months, years, and multi-year periods.

When using less than one year, use:

• “Annual/monthly Unit Summary Report” for viewing monthly numbers.

• “Unit-year Statistical Report” for projections of how the unit would operate if operated in the same manner as the short period.

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Year 1 Year 2 Year 3

Data pulled for months 01 to 12 for three years.

Jan & Feb Nov to Feb Nov to Feb Nov Dec

Data pulled for months 11 to 02 for three years.

Jan Feb …. Nov Dec Jan Feb …. Nov Dec Jan Feb …. Nov Dec

Year 1 Year 2 Year 3

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Help #4 – Adding/removing UnitsHelp #4 – Adding/removing Units

pc-GAR allows you to add or remove youp own units from any selected group (“units included in report”)

You cannot remove units that NERC considers not yours (even if you are a part-owner.) “Ownership” (to NERC) is the organization reporting data to GADS.

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All own units

Own units in report.

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First, select one unit at a time to move.

Next, click on the Button to add own units to report.

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The unit is nowadded.

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To remove a unit from the report, first highlight theunit then

click on the “remove unit” bottom.

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The unit is now back into the “own unit” list and out of the report.

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Help #5 – Same Peer GroupHelp #5 – Same Peer Group

This procedure allows you to use the same group of units from one period to the next, assuming the same units reported in both periods.

First, select the group of units using the standard procedure for choosing a group.

Second, in “Menu of Reports,” choose “Report Data Range.”

Third, select a new period to analyze.

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Some criteria maychange from oneperiod to the nextas shown here.

Select criteria andthen save.

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Select a newperiod here.

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Here you select a newperiod for analysis usingthe same group of units.

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Help #6 – Single, Own Unit ReportHelp #6 – Single, Own Unit Report

For when you want to create a pc-GAR report for just one of your own units.

Normal selection procedure for own units.

Remove all but the single unit from the “Units included in Report” section.

Apply criteria as “Reapply Criteria …”

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Choose “Own Units”to remove any units not under yourcontrol.

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Select the unit(s) youwanted to analyze. Youcan pick more than oneif you want for a singlegroup or show theperformance of a plant.Suppose we want to see the performance of3 units.

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After removing allbut the 3 units using the “remove unit”button, you return tothe “Report Design”section of the Criteria Entry.

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Apply the Criteria.

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Choose the “event option” you want (see Trick #7for details) and click “ok”.

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Select “Re-apply Criteria …” option to pull data for just the 3 units.If you use the other option, you’ll be back where you started withall of your own units.

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Now you have only3 units for your report.

Save the file.

Print the report asyou normally do.

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Help #7 – Data Making StatisticsHelp #7 – Data Making Statistics

There are three options for choosing the units and data for making the statistics in the reports:

• Units that report both event & performance records and units reporting performance data only.

• Units that report both event and performance data only.

• Units that report both event and performance data for all years of the period.

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This option includes all units reporting to GADS, whether they reported events data or not.

This option may show differences in statistics like EAF, EFOR,EFORd, etc because not all units reported deratings.

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This option includes all units reporting to GADS whereevents are reported during the period being examined.

This option will show accurate statistics like EAF, EFOR, EFORd, etc because all units report deratings.

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This option includes all units reporting to GADS where events were reported during the complete period being examined. If you were examining 5 years, the unit would have to report events all 5 years.

This option will show accurate statistics like EAF, EFOR, EFORd, etc.because all units reported deratings. 39

Help #8 – Start Fresh or Re-examine?Help #8 – Start Fresh or Re-examine?

When retrieving data, you have the option to start fresh each time or re-examine the existing data.

It is faster to start with a big group, add a criteria, and then re-examine the group as each criteria is added.

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Always uses this option when starting a new retrieval or increasing thepopulation of an existing retrieval.

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Use this option if you are “trimming” an existing retrieval. Never use it if yoususpect that the population of the retrieval will increase.

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Help #9 – Inclusion Help #9 – Inclusion

In pc-GAR, the software assume you want everything unless you specify that you only want something special.

For example, the program will assume you want all NERC Regions unless you specify you only want two certain Regions.

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Help #10 – ExclusionHelp #10 – Exclusion

In pc-GAR, you may have to specify you DON’T WANT something in order to get the condition you really want.

For example, if you wanted units with a single reheater in the boiler, you would have to specify that the first RH section is 1 to 9999 psig and the second RH section is 0 to 0 psig.

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Help #10 – ExclusionHelp #10 – Exclusion

By placing a “0” (zero) in some criteria, you can focus on special cases of design. Here we locate single RH units and remove non- and double RH. 45

Question & Answer

On to the demo…

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Examples

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Class Example 100-300 MW Oil UnitClass Example 100-300 MW Oil Unit

Example for locating your unit for comparing to others

• AF and EAF distributions

Suppose that your unit is between 100-300 MW and burns oil as its primary fuel. How would you locate other units in GADS and compare yourself to them?

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STEP

1. Double Click on pc-GAR icon

2. Click on “New Report Wizard”

3. Input Study Description

4. Input Author

5. Click on pull down menu for “Unit Type”

6. Click on desired Unit Type (fossil-steam)

7. Click on pull down menu for “Units”

8. Click on “All Units Including Own”

9. Click on “Next”

10. Enter “1993” through “1997” in “Years” window 49


STEP

11. Click on “Add a Criteria” Button

12. Select Window for 1st Criteria Category (Physical, Performance or All)

13. Enter Select Criteria

14. Click on “Add a Criteria Button”

15. Select Window for 2nd Criteria Category

16. Enter Select Criteria

17. Click on “Apply Criteria”

18. Click on “OK”

19. Note number of Units Selected

20. Click on “Next”50


STEP

21. Click on “Next”

22. Click on “Save” (after adding Title 1,2 or comments if desired)

23. Highlight desired study

24. Click on “Print Report”

25. Click on “Unit Statistics Distributions”

26. Check AF & EAF

27. Click on “OK”

28. Check “Print Unit Names on Cover Page”

29. Check on “Print”

30. Observe Page 1 of report results 51


STEP

31. Click on Page “down”

32. Observe statistics for mean & median values for AF & Distributions

33. Write down 10th, 25th, 75th and 90th percentiles and Mean & Median values of AF

34. Repeat steps 31-33 for EAF

35. If you have time, try another technology (Hydro, GT, CC, or another type fossil steam on your own

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Question & Answer

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What is pc-GAR MT?

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What is pc-GAR MT?What is pc-GAR MT?

Software product to provide a distribution of times to repair (TTR) and times between failures (TBF)

Software product to provide Mean TTR and Mean TBF for modeling and analysis programs

Software product that allows YOU control of the units in the data set.

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Events as Reported to GADSEvents as Reported to GADS

Most events are shown as one, continuous activity per year

However, there are some where the single event is divided into parts by:

• Months for internal utility reporting

• Years as part of the GADS cut off

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Need for New SoftwareNeed for New Software

Combine monthly events into one

Combine year-ending & year starting events into one

Ability to isolate events by event types

Ability to isolate events by cause codes or groups of cause codes

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The pc-GAR MT PlanThe pc-GAR MT Plan

Year 1 Year 2

Month 1 Month 2 Month 3

Event 1 Event 1 Event 1

Event 1

Year 2

Goal: one event, no matter its start or end!

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The ProgrammingThe Programming

pc-GAR

New Data HandlingSoftware

pc-GAR MT

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Why pc-GAR MT?Why pc-GAR MT?

Determine more accurately the times between failures for modeling

Determine more accurately the repair times for shorter down time

Manage inspections to equipment to prevent forced outages

Evaluate operating/maintenance practices

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What’s in common between pc-GARs?What’s in common between pc-GARs?

Same design retrievals

Same performance retrievals

Same ability to use range or year option

Same years of resource

Same wizard for selecting units

Different output reports

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What’s in common between pc-GARs?What’s in common between pc-GARs?

Design data Event/Performance Data Fuel Data

Retrieval Criteria

pc-GAR MTpc-GARpc-GAR

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pc-GAR MT Main Screenpc-GAR MT Main Screen

Once the criteriais chosen, you start the MT retrieval with thisbutton.

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pc-GAR MT Cause Code Selectionpc-GAR MT Cause Code Selection

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pc-GAR MT Event Type Selectionpc-GAR MT Event Type Selection

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pc-GAR MT Output pc-GAR MT Output

Example of pc-GAR MT output. Lots of information! 66

FD or ID Fan ProblemsFD or ID Fan Problems

Fossil units, 400-499 MW during 1993-1997

Problems with more than 1 hour of full forced outage.

24 out of 146 events were less than 1 hour!

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Versions of pc-GAR and pc-GAR MTVersions of pc-GAR and pc-GAR MT

pc-GAR

• Annual update normally in the fall of the next year

• 14 month subscription

pc-GAR+Plus

• Monthly update with all new data passing the GADS edit programs

• 12 months subscription

pc-GAR MT

• Annual update normally in the fall of the next year

• 14 month subscription 68

Versions of pc-GARVersions of pc-GAR

Power Generator Version

• Assess to manufacturer-specific data

• Assess to own unit data

Manufacturer’s Version

• Assess to own manufacturer equipment and units

• All competitors are grouped as own manufacturer

All others

• No assess to manufacturer or unit-specific data

• Rule: 3 utilities and 7 units for any reports69

Question & Answer

Contact:

Mike CurleyManager of GADS [email protected]

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mailto:[email protected]

Documents

Introduction to pc-GAR and pc-GAR MT