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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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Component Identification and NumberingComponent Identification and Numbering
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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Component Identification and NumberingComponent Identification and Numbering
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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Component Identification and NumberingComponent Identification and Numbering
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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Component Identification and NumberingComponent Identification and Numbering
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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Component Identification and NumberingComponent Identification and Numbering
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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Component Identification and NumberingComponent Identification and Numbering
UNDERBUILT SECONDARY OVERHEAD LINE DATAUNDERBUILT SECONDARY OVERHEAD LINE DATA
Adopt eight (8) alphanumeric charactersAdopt eight (8) alphanumeric characters
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)
AA for singlefor single--phasephase
CC for threefor three--phasephase
XXXXXXXXXX ==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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Component Identification and NumberingComponent Identification and Numbering
UNDERGROUND SECONDARY LINE DATAUNDERGROUND SECONDARY LINE DATA
Adopt eight (8) alphanumeric charactersAdopt eight (8) alphanumeric characters
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
CC for threefor three--phasephase
XXXXXXXXXX = 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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Component Identification and NumberingComponent Identification and Numbering
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)
AA for singlefor single--phasephase
CC for threefor three--phasephase
XXXXXXXXXXXXXXXXXXXX = customer account number (unlimited= customer account number (unlimited
characters)characters)
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Component Identification and NumberingComponent Identification and Numbering
SECONDARY SERVICE DROP LINE DATASECONDARY SERVICE DROP LINE DATA
Adopt three (3) alphanumeric characters followed byAdopt three (3) alphanumeric characters followed by
consumer ID numberconsumer ID number
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)
AA for singlefor single--phasephase
CC for threefor three--phasephase
XXXXXXXXXXXXXXXXXXXX = customer account number (unlimited= customer account number (unlimitedcharacters)characters)
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Component Identification and NumberingComponent Identification and Numbering
UNDERGROUND SERVICE LATERAL LINE DATAUNDERGROUND SERVICE LATERAL LINE DATA
Adopt three (3) alphanumeric characters followed byAdopt three (3) alphanumeric characters followed by
consumer ID numberconsumer ID number
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)
AA for singlefor single--phasephase
CC for threefor three--phasephase
XXXXXXXXXXXXXXXXXXXX = customer account number (unlimited= customer account number (unlimitedcharacters)characters)
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Component Identification and NumberingComponent Identification and Numbering
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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Component Identification and NumberingComponent Identification and Numbering
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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Component Identification and NumberingComponent Identification and Numbering
SHUNT INDUCTOR DATASHUNT INDUCTOR DATA
Adopt five (5) alphanumeric charactersAdopt five (5) alphanumeric characters
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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Component Identification and NumberingComponent Identification and Numbering
SERIES INDUCTOR DATASERIES INDUCTOR DATA
Adopt five (5) alphanumeric charactersAdopt five (5) alphanumeric characters
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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Component Identification and NumberingComponent Identification and Numbering
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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Component Identification and NumberingComponent Identification and Numbering
CUSTOMER TYPECUSTOMER TYPE
Adopt customer account number as unique IDAdopt customer account number as unique ID
CUSTOMER TYPE AND DESCRIPTION:CUSTOMER TYPE AND DESCRIPTION:
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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Component Identification and NumberingComponent Identification and Numbering
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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Component Identification and NumberingComponent Identification and Numbering
LOAD CURVE DATALOAD CURVE DATA
Adopt customer account number as unique IDAdopt customer account number as unique ID
CUSTOMER TYPE AND DESCRIPTION:CUSTOMER TYPE AND DESCRIPTION:
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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Component Identification and NumberingComponent Identification and Numbering
LOAD CURVE DATALOAD CURVE DATA
Adopt customer account number as unique IDAdopt customer account number as unique ID
CUSTOMER TYPE AND DESCRIPTION:CUSTOMER TYPE AND DESCRIPTION:
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
EquipmentIDEquipmentID From BusFrom Bus To BusTo Bus
DXMNLA04C0001DXMNLA04C0001 P00001P00001 P00010P00010
DXMNLA04C0006DXMNLA04C0006 P00010P00010 P00035P00035
DXMNLA04C0011DXMNLA04C0011 P00035P00035 P00060P00060
DXMNLA04C0001
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Distribution Transformer DataDistribution Transformer Data
From Bus
To Bus
P00010P00010
DT0001U
P00010P00010--11
Connection Point to a
Primary Line Segment
EquipmentIDEquipmentID From BusFrom Bus To BusTo Bus
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
Connection Point to a
Distribution Transformer
Secondary or Another
Secondary Line Segment
EquipmentIDEquipmentID From BusFrom Bus To BusTo Bus
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
Connection Point to a
Secondary Line Segment
EquipmentIDEquipmentID From BusFrom Bus To BusTo Bus
KSA7892456KSA7892456 P00010P00010--77 COM1COM1--78924567892456
KSA5689345KSA5689345 P00010P00010--66 RES1RES1--56893455689345
KPC1456789KPC1456789 P00060P00060--11 INDL1INDL1--456789456789
KSA5689345
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ENDEND
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