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  • S P P 2 0 1 5 T P L - 0 0 1 - 4 S h o r t C i r c u i t P l a n n i n g A s s e s s m e n t f o r

    U p p e r M i s s o u r i Z o n e E n t i t i e s

    12/30/2015

    SPP Engineering

  • Southwest Power Pool, Inc. Revision History

    SPP 2015 TPL-001-4 Short Circuit Planning Assessment for Selected UMZ Entities 2

    Revision History

    Date Author Change Description

    12/23/2015 SPP staff Initial Draft

    12/30/2015 SPP staff Final Draft

  • Southwest Power Pool, Inc. Table of Contents

    SPP 2015 TPL-001-4 Short Circuit Planning Assessment For Selected UMZ Entities 3

    Table of Contents

    REVISION HISTORY ........................................................................................................................................................................................................... 2 TABLE OF CONTENTS ....................................................................................................................................................................................................... 3 LIST OF TABLES................................................................................................................................................................................................................. 4

    PURPOSE ....................................................................................................................................................................................................... 5 MODELS ........................................................................................................................................................................................................ 6 STUDIES ........................................................................................................................................................................................................ 7

    3.1: TPL-001-4 Short Circuit Study ............................................................................................................................................................... 7 3.2: Simulation ........................................................................................................................................................................................................ 7 3.3: Corrective Action Plans and Member Review ................................................................................................................................. 7

    ENTITIES INVOLVED ................................................................................................................................................................................... 8 RESULTS........................................................................................................................................................................................................ 9

    5.1: TPL-001-4 Short Circuit Study ............................................................................................................................................................... 9 5.2: Totals by Modeling Area ............................................................................................................................................................................ 9

    SUMMARY .................................................................................................................................................................................................. 11 2015 TPL SHORT CIRCUIT SCOPE ....................................................................................................................................................... 12

  • Southwest Power Pool, Inc. List of Tables

    SPP 2015 TPL-001-4 Short Circuit Planning Assessment for Selected UMZ Entities 4

    List of Tables

    Table 2.1: Models used in TPL-001-4 short circuit studies ............................................................................................................................ 6 Table 4.1: Entities included in the TPL-001-4 Short Circuit study ............................................................................................................. 8 Table 5.1: TPL-001-4 Potential Violations ............................................................................................................................................................. 9 Table 5.2: Potential Violation Totals by Model Area ...................................................................................................................................... 10

  • Southwest Power Pool, Inc. Section 1: Purpose

    SPP 2015 TPL-001-4 Short Circuit Planning Assessment For Selected UMZ Entities 5

    Purpose

    The objective of the 2015 TPL-001-4 Short Circuit Assessment (assessment) is to report findings from

    the 2015 TPL-001-4 short circuit studies along with an associated evaluation of the study results in

    support of SPP’s compliance, as a Planning Coordinator (PC), with the NERC TPL-001-4 Reliability

    Standard.

    The goals of this assessment are:

    1. Determine whether circuit breakers have interrupting capability for Faults that they will be expected to interrupt. (R2.3)

    2. Report Corrective Action Plans (CAPs) to address the Equipment Rating violations. (R2.8)

    This assessment focuses on certain transmission facilities in the SPP footprint of Corn Belt Electric

    Cooperative (Corn Belt), Missouri Basin Municipal Power Agency (MRES), and Heartland Consumers

    Power District (Heartland), collectively known as the Upper Missouri Zone Entities (UMZ Entities), and

    summarizes potential criteria violations and the associated CAPs developed by the affected entities and

    the SPP PC.

  • Southwest Power Pool, Inc. Section 2: Models

    SPP 2015 TPL-001-4 Short Circuit Planning Assessment for Selected UMZ Entities 6

    Models

    The 2015 SPP Model Development Working Group (MDWG) short circuit models reflect system

    conditions for the Near-Term Transmission Planning Horizon. These models are updated by TPs to

    reflect the most current information using the Model On Demand (MOD) program. The SPP 2015 Series

    MDWG Final Short Circuit Maximum Fault Models were used in the 2015 TPL planning studies as

    reflected in Table 2.1.

    Table 2.1: Models used in TPL-001-4 short circuit studies

    Model Scope

    Seasonal Assessment

    Model Used Model Released Assessment Completed

    Near

    Term

    2016 Summer

    Peak

    2015MDWGFINALSC_Cl

    assical_MAX_FAULT-16S April 2015 November 2015

  • Southwest Power Pool, Inc. Section 3: Studies

    SPP 2015 TPL-001-4 Short Circuit Planning Assessment For Selected UMZ Entities 7

    Studies

    3.1: TPL-001-4 Short Circuit Study

    Analysis results on the SPP 2015 MDWG Final Short Circuit Maximum Fault models used for the PC

    assessment were provided to the UMZ Entities. The UMZ Entities were also provided the option to

    perform their own short circuit analysis in lieu of the PC provided results.

    3.2: Simulation

    Fault current values were determined for each bus modeled in SPP model areas using Power System

    Simulation for Engineering (PSS/E) activities Automatic Sequencing Fault Calculation (ASCC) and

    ANSI fault current calculation (ANSI) for Single Line to Ground and Three Phase faults. Results from

    both activities included system intact faults and activity ASCC also included Line Out faults.

    3.3: Corrective Action Plans and Member Review

    The UMZ Entities evaluated the applicable results and provided CAPs to the PC, if necessary. If

    necessary, the PC verified validity of the submitted CAPs.

  • Southwest Power Pool, Inc. Section 4: Entities Involved

    SPP 2015 TPL-001-4 Short Circuit Planning Assessment for Selected UMZ Entities 8

    Entities Involved

    The following entities registered with the Midwest Reliability Organization (MRO) Regional Entity

    were included in this TPL Short Circuit Analysis.

    Entity Name Registered Function

    Corn Belt Electric Cooperative (Corn Belt) DP, RP, TO, TOP, TP

    Heartland Consumers Power District (Heartland) RP, TO

    Missouri Basin Municipal Power Agency (MRES) GO, GOP, RP, TO

    Table 4.1: Entities included in the TPL-001-4 Short Circuit study

    DP : Distribution Provider RP: Resource Planner

    GO : Generation Owner TO: Transmission Owner

    GOP: Generator Operator TOP: Transmission Operator

    TP: Transmission Planner

  • Southwest Power Pool, Inc. Section 5: Results

    SPP 2015 TPL-001-4 Short Circuit Planning Assessment For Selected UMZ Entities 9

    Results

    CAPs to address potential violations consisted of the following:

     No CAPs were required.

    5.1: TPL-001-4 Short Circuit Study

    The SPP 2015 MDWG Final Short Circuit Maximum Fault models used for the short circuit study did

    not result in potential violations. Table 5.1 lists a summary of these potential violations.

    Season Total

    Violations Mitigated Findings

    Remaining Violations

    2016 Summer 0 0 0

    Table 5.1: TPL-001-4 Potential Violations

    5.2: Tot

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