Memo and Sample System Coding

7/29/2019 Memo and Sample System Coding

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Standard Coding forStandard Coding for

Distribution System AnalysisDistribution System Analysisand Managementand Management


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ObjectivesObjectives

To establish a uniform coding or identification ofTo establish a uniform coding or identification ofelectrical equipment and their connection points toelectrical equipment and their connection points tobe utilized by all Electric Cooperatives;be utilized by all Electric Cooperatives;

To simplify the assigned unique ID for easyTo simplify the assigned unique ID for easyunderstanding and facilitate the determination of theunderstanding and facilitate the determination of the

type, number, and location of the equipment;type, number, and location of the equipment;To help theTo help the ECsECs maintain proper control, andmaintain proper control, and

accurate account of the equipment and structuresaccurate account of the equipment and structures

being utilized in thebeing utilized in the ECsECs distribution systems; anddistribution systems; andTo help NEA create a systematic DSM databank inTo help NEA create a systematic DSM databank inconnection with the overall development of Nationalconnection with the overall development of NationalStrategic Plan.Strategic Plan.


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PolicyPolicy

Each EC shall prepare, maintain, and provide NEAEach EC shall prepare, maintain, and provide NEA

the output of their activities for systems lossthe output of their activities for systems losssegregation and distribution system analysis. Thesegregation and distribution system analysis. The

EC shall ensure that the integrity of the data isEC shall ensure that the integrity of the data is

properly observed so that an accurate analysis ofproperly observed so that an accurate analysis ofthe system would be attained. NEA requires thethe system would be attained. NEA requires the

submittal of electronic and hard copies of thesubmittal of electronic and hard copies of the

supporting documents and worksheets used insupporting documents and worksheets used inthese activities so that in case of ambiguities ofthese activities so that in case of ambiguities of

data submitted, NEA would be able to check them.data submitted, NEA would be able to check them.


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PolicyPolicy

The following are the required documents forThe following are the required documents for

submission:submission: Single line diagram per feeder indicating theSingle line diagram per feeder indicating the

connection point of electrical equipment andconnection point of electrical equipment and

line segment;line segment; Distribution system data in standard forms;Distribution system data in standard forms;

andand

Comprehensive engineering plan after theComprehensive engineering plan after thesystem analysis.system analysis.


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ResponsibilityResponsibility

The Board of Directors and General Manager shallThe Board of Directors and General Manager shall

primarily be responsible to implement theseprimarily be responsible to implement theseguidelines. The required data are very vital inputs toguidelines. The required data are very vital inputs to

the network modeling of distribution system andthe network modeling of distribution system and

tools in reducing and controlling systems loss whichtools in reducing and controlling systems loss whichare basis of identifying high impact projects inare basis of identifying high impact projects in

strategic planning and to be utilized in accounting,strategic planning and to be utilized in accounting,

billing, apprehension, and for other purposes, tobilling, apprehension, and for other purposes, toenable theenable the ECsECs to achieve the systems loss withinto achieve the systems loss within

the acceptable limit.the acceptable limit.


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General ProcedureGeneral Procedure

Create a working group of Technical personnelCreate a working group of Technical personnelwhose primary responsibility is to gather technicalwhose primary responsibility is to gather technical

field data. Data input must be in accordance withfield data. Data input must be in accordance withstandard forms provided.standard forms provided.

Each feeder must be provided with a singleEach feeder must be provided with a single--lineline

diagram wherein the assigned component ID isdiagram wherein the assigned component ID isplaced, location of segment or node/bus of aplaced, location of segment or node/bus of asection or equipment for easy identification of thesection or equipment for easy identification of theexact location of physical component in theexact location of physical component in thesystem. Also, provide the staking sheets wheresystem. Also, provide the staking sheets wherethe structures and assemblies must be placedthe structures and assemblies must be placedusing our standard construction specification.using our standard construction specification.


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General ProcedureGeneral Procedure

All generated data must be kept intact and available toAll generated data must be kept intact and available toall members of the group to enable each one of them toall members of the group to enable each one of them to

countercheck the completeness of the output ofcountercheck the completeness of the output ofactivities.activities.

Upon completion of field data gathering or engineeringUpon completion of field data gathering or engineering

analysis, it is recommended that permanent markinganalysis, it is recommended that permanent markingwith the use of paint or a name tag be placed on allwith the use of paint or a name tag be placed on allstructures and equipment.structures and equipment.

Prior to submittal to NEA, ensure that the data havePrior to submittal to NEA, ensure that the data havealready undergone sanity check and verified correct.already undergone sanity check and verified correct.Load flow simulation and analysis must be done in NEA.Load flow simulation and analysis must be done in NEA.


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Component Identification and NumberingComponent Identification and Numbering

GENERAL ID OF DISTRIBUTION SYSTEM COMPONENTSGENERAL ID OF DISTRIBUTION SYSTEM COMPONENTS

( to be used as prefix to equipment coding )( to be used as prefix to equipment coding )

SSSS Substation power transformerSubstation power transformerDXDX Primary overhead linePrimary overhead line

UXUX Primary underground linePrimary underground line

OSOS Open secondary overhead lineOpen secondary overhead line

UBUB UnderbuiltUnderbuilt secondary overheadsecondary overheadlineline

USUS Underground secondary lineUnderground secondary line

KPKP Primary service dropPrimary service drop

KSKS

Secondary service dropSecondary service drop

KUKU Underground service lateralUnderground service lateral

DTDT Distribution TransformerDistribution Transformer

VRVR Voltage RegulatorVoltage Regulator

XCXC Shunt CapacitorShunt Capacitor

XLXL Shunt InductorShunt Inductor

XSXS Series InductorSeries Inductor


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SUBSTATION POWER TRANSFORMER :SUBSTATION POWER TRANSFORMER :

Adopt eight (8) alphanumeric characters:Adopt eight (8) alphanumeric characters:

CODING:CODING: SSAAAAXXSSAAAAXX

SSSS = prefix ID designation for substation power= prefix ID designation for substation power

transformertransformerAAAAAAAA = location of substation (4 alphanumeric= location of substation (4 alphanumeric

characters)characters)

XXXX = serialized and unique transformer numbering= serialized and unique transformer numbering(2 numeric characters )(2 numeric characters )


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PRIMARY OVERHEAD LINE DATAPRIMARY OVERHEAD LINE DATA

Adopt thirteen (13) alphanumeric charactersAdopt thirteen (13) alphanumeric characters

CODING:CODING: DXAAAAXXBYYYYDXAAAAXXBYYYY

DX =DX = Prefix ID designation for Primary Overhead LinePrefix ID designation for Primary Overhead Line

AAAA =AAAA = location of substation (4 alphanumeric characters)location of substation (4 alphanumeric characters)

XX =XX = serialized and unique continuous feeder number (2serialized and unique continuous feeder number (2numeric characters )numeric characters )

B =B = phase configuration (1 character)phase configuration (1 character)

CC for three phasefor three phase

BB forfor VeeVee phasephase

AA for single phasefor single phase

YYYY = serialized numbers (4 numeric characters)YYYY = serialized numbers (4 numeric characters)

reserving 4 numbers are recommended.reserving 4 numbers are recommended.(e.g., 0001, 0006, 0011, 0016, etc.)(e.g., 0001, 0006, 0011, 0016, etc.)


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PRIMARY UNDERGROUND LINE DATAPRIMARY UNDERGROUND LINE DATA

Adopt thirteen (13) alphanumeric charactersAdopt thirteen (13) alphanumeric characters

CODING:CODING: UXAAAAXXBYYYYUXAAAAXXBYYYY

UX =UX = prefix ID designation for Underground Primary Lineprefix ID designation for Underground Primary Line

AAAA =AAAA = location of substation (4 alphanumeric characters)location of substation (4 alphanumeric characters)

XX =XX = serialized and unique continuous feeder number (2serialized and unique continuous feeder number (2numeric characters)numeric characters)

B =B = phase configuration (1 character)phase configuration (1 character)

CC for three phasefor three phase

BB forforVeeVee phasephase

AA for single phasefor single phase

YYYY =YYYY = serialized numbers (4 numeric characters)serialized numbers (4 numeric characters)

reserving 4 numbers are recommendedreserving 4 numbers are recommended(e.g., 0001, 0006, 0011, 0016, etc.)(e.g., 0001, 0006, 0011, 0016, etc.)


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DISTRIBUTION TRANSFORMERDISTRIBUTION TRANSFORMER

Adopt seven (7) alphanumeric charactersAdopt seven (7) alphanumeric characters

CODING :CODING : DTXXXXUDTXXXXU oror DTXXXXVDTXXXXV oror DTXXXXWDTXXXXW

DTDT = prefix ID for Distribution Transformer= prefix ID for Distribution Transformer

XXXXXXXX = serialized number (4 numeric characters)= serialized number (4 numeric characters)U or V or WU or V or W ==U for single phase,U for single phase,

V for open delta, orV for open delta, or

W for threeW for three--phase bank (one character)phase bank (one character)


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OPEN SECONDARY OVERHEAD LINE DATAOPEN SECONDARY OVERHEAD LINE DATA

Adopt eight (8) alphanumeric charactersAdopt eight (8) alphanumeric characters

CODING :CODING : OSAXXXXXOSAXXXXX

OSOS = prefix ID designation for Open Secondary= prefix ID designation for Open Secondary

Overhead LineOverhead LineAA = phase configuration (1 character)= phase configuration (1 character)

AA for singlefor single--phasephase

CC for threefor three--phasephase

XXXXX =XXXXX = serialized numbers (5 numeric characters)serialized numbers (5 numeric characters)

reserving one (1) number is recommendedreserving one (1) number is recommended

(e.g., 00001, 00003, 00005, etc.)(e.g., 00001, 00003, 00005, etc.)


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UNDERBUILT SECONDARY OVERHEAD LINE DATAUNDERBUILT SECONDARY OVERHEAD LINE DATA


CODING :CODING : UBAXXXXXUBAXXXXX

UBUB = prefix ID designation for Under= prefix ID designation for Under--built Secondarybuilt Secondary

Overhead LineOverhead LineAA = phase configuration (1 character)= phase configuration (1 character)



XXXXXXXXXX ==serialized numbers (5 numeric characters)serialized numbers (5 numeric characters)


(e.g., 00001, 00003, 00005, etc.)(e.g., 00001, 00003, 00005, etc.)


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UNDERGROUND SECONDARY LINE DATAUNDERGROUND SECONDARY LINE DATA


CODING :CODING : USAXXXXXUSAXXXXX

USUS = prefix ID designation for Underground Secondary Line= prefix ID designation for Underground Secondary Line

AA = phase configuration (1 character)= phase configuration (1 character)AA for singlefor single--phasephase


XXXXXXXXXX = serialized numbers (5 numeric characters)= serialized numbers (5 numeric characters)


(e.g., 00001, 00003, 00005, etc.)(e.g., 00001, 00003, 00005, etc.)


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PRIMARY SERVICE DROP LINE DATAPRIMARY SERVICE DROP LINE DATA

Adopt three (3) alphanumeric characters followed byAdopt three (3) alphanumeric characters followed by

consumer ID numberconsumer ID number

CODING :CODING : KPAXXXXXXXXXKPAXXXXXXXXXXX

KPKP = prefix ID designation for Primary Service Drop= prefix ID designation for Primary Service DropAA = phase configuration (1 character)= phase configuration (1 character)



XXXXXXXXXXXXXXXXXXXX = customer account number (unlimited= customer account number (unlimited

characters)characters)


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SECONDARY SERVICE DROP LINE DATASECONDARY SERVICE DROP LINE DATA



CODING :CODING : KSAXXXXXXXXXKSAXXXXXXXXXXX

KSKS = prefix ID designation for Secondary Service Drop= prefix ID designation for Secondary Service DropAA = phase configuration (1 character)= phase configuration (1 character)



XXXXXXXXXXXXXXXXXXXX = customer account number (unlimited= customer account number (unlimitedcharacters)characters)


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UNDERGROUND SERVICE LATERAL LINE DATAUNDERGROUND SERVICE LATERAL LINE DATA



CODING :CODING : KUAXXXXXXXXXKUAXXXXXXXXXXX

KUKU = prefix ID designation for Underground Service Drop= prefix ID designation for Underground Service DropAA = phase configuration (1 character)= phase configuration (1 character)



XXXXXXXXXXXXXXXXXXXX = customer account number (unlimited= customer account number (unlimitedcharacters)characters)


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VOLTAGE REGULATOR DATAVOLTAGE REGULATOR DATA

Adopt six (6) alphanumeric charactersAdopt six (6) alphanumeric characters

CODING:CODING: VRXXXAVRXXXA ororVRXXXCVRXXXC

VRVR = prefix ID for Voltage Regulator= prefix ID for Voltage Regulator

XXXXXX = serialized number (3 numeric characters)= serialized number (3 numeric characters)A or CA or C = A for single= A for single--phase, orphase, or

C for threeC for three--phase (1 character)phase (1 character)


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SHUNT CAPACITOR DATASHUNT CAPACITOR DATA

Adopt five (5) alphanumeric charactersAdopt five (5) alphanumeric characters

CODING :CODING : XCXXXXCXXX

XCXC = prefix ID for Shunt Capacitor= prefix ID for Shunt Capacitor

XXXXXX = serialized numbers (3 numeric characters)= serialized numbers (3 numeric characters)


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SHUNT INDUCTOR DATASHUNT INDUCTOR DATA


CODING :CODING : XLXXXXLXXX

XLXL = prefix ID for Shunt Inductor= prefix ID for Shunt Inductor

XXXXXX = serialized number (3 numeric characters)= serialized number (3 numeric characters)


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SERIES INDUCTOR DATASERIES INDUCTOR DATA


CODING :CODING : XSXXXXSXXX

XSXS = prefix ID for Series Inductor= prefix ID for Series Inductor

XXXXXX = serialized number (3 numeric characters)= serialized number (3 numeric characters)


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CUSTOMER TYPECUSTOMER TYPE

Adopt customer account number as unique IDAdopt customer account number as unique ID

CUSTOMER TYPE AND DESCRIPTION:CUSTOMER TYPE AND DESCRIPTION:

RES1RES1 -- below 50 KWH consumptionbelow 50 KWH consumption

RES2RES2 -- 50 to 100 KWH consumption50 to 100 KWH consumptionRES3RES3 -- 100 to 175 KWH consumption100 to 175 KWH consumption

RES4RES4 -- above 175 KWH consumptionabove 175 KWH consumption

COM1COM1 -- small commercial buildingsmall commercial buildingCOM2COM2 -- medium commercial buildingmedium commercial building

COM3COM3 -- large commercial buildinglarge commercial building


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CUSTOMER TYPECUSTOMER TYPE



INDL1INDL1 -- small industrial buildingsmall industrial building

INDL2INDL2 -- medium industrial buildingmedium industrial buildingINDL3INDL3 -- large industrial buildinglarge industrial building

PBPB -- public buildingpublic building

IRRIRR -- irrigationirrigationSTST -- street lightsstreet lights

OTOT -- othersothers


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BILLING CYCLE DATABILLING CYCLE DATA

Adopt year and month billing periodAdopt year and month billing period

CODING :CODING : YYYYMMYYYYMM

YYYYYYYY = year= yearMMMM = month= month


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LOAD CURVE DATALOAD CURVE DATA



LCRES1LCRES1 -- below 50 KWH consumptionbelow 50 KWH consumption

LCRES2LCRES2 -- 50 to 100 KWH consumption50 to 100 KWH consumption

LCRES3LCRES3 -- 100 to 175 KWH consumption100 to 175 KWH consumption

LCRES4LCRES4 -- above 175 KWH consumptionabove 175 KWH consumption

LCCOM1LCCOM1 -- small commercial buildingsmall commercial building

LCCOM2LCCOM2 -- medium commercial buildingmedium commercial buildingLCCOM 3LCCOM 3 -- large commercial buildinglarge commercial building


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LOAD CURVE DATALOAD CURVE DATA



LCINDL1LCINDL1 -- small industrial buildingsmall industrial building

LCINDL2LCINDL2 -- medium industrial buildingmedium industrial buildingLCINDL3LCINDL3 -- large industrial buildinglarge industrial building

LCPBLCPB -- public buildingpublic building

LCIRRLCIRR -- irrigationirrigation

LCSTLCST -- street lightsstreet lights

LCOTLCOT -- othersothers


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Sample System CodingSample System Coding

Di ib i SDi ib i S


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Distribution SystemDistribution System

Single Line DiagramSingle Line DiagramSource Bus

SSMNLA02DXMNLA04C0001

DT0001U

DXMNLA04C0006 DXMNLA04C0011

DT0002W

OSA00001KPC1456789

KSA5689345 OSA00003

RES1-5689345KSA7892456

COM1-7892456

INDL1-456789

P00010P00010P00035P00035

P00060P00060

P00010P00010--11

P00010P00010--66

P00060P00060--11

P00010P00010--77

P00001P00001


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Power Transformer DataPower Transformer Data

From Bus

To Bus

Source Bus

SSMNLA02

P00001P00001

Connection Point to theTransmission System

EquipmentIDEquipmentID From BusFrom Bus To BusTo Bus

SSMNLA02SSMNLA02 Source BusSource Bus P00001P00001

HV

LV


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Primary LinePrimary Line

From Bus

To Bus

P00001P00001

P00010P00010

Connection Point to a

Power Transformer

Secondary or Another

Primary Line Segment


DXMNLA04C0001DXMNLA04C0001 P00001P00001 P00010P00010



DXMNLA04C0001


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Distribution Transformer DataDistribution Transformer Data

From Bus

To Bus

P00010P00010

DT0001U

P00010P00010--11


Primary Line Segment


DT0001UDT0001U P00010P00010 P00010P00010--11

DT0002WDT0002W P00060P00060 P00060P00060--11

HV

LV


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Secondary LineSecondary Line

From Bus

To Bus

P00010P00010--11

P00010P00010--66


Distribution Transformer

Secondary or Another

Secondary Line Segment


OSA00001OSA00001 P00010P00010--11 P00010P00010--66

OSA00003OSA00003 P00010P00010--66 P00010P00010--77

OSA00001


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Service Drop LineService Drop Line

From Bus

To Bus

P00010P00010--66

RES1-5689345


Secondary Line Segment


KSA7892456KSA7892456 P00010P00010--77 COM1COM1--78924567892456

KSA5689345KSA5689345 P00010P00010--66 RES1RES1--56893455689345

KPC1456789KPC1456789 P00060P00060--11 INDL1INDL1--456789456789

KSA5689345


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Memo and Sample System Coding