It is a presentation about GIS in RAPDRP project. DISCOM can use GIS tools and data for their betterment to navigation towards their electrical assets & for calculation of AT&C losses.

1. Presentation on
ELECTRICITY DISTRIBUTION LOSSES
& ITS PREVENTION
Presented By:- Abhishek Kumar, Geo Spatial Division, HCL 1

2. CONTENTS
1. Drivers of AT&C LOSSES
2. GIS MAP SAMPLE HAMIRPUR
3. AT&C Calculation of DISTRIBUTION TRANSFORMER
4. Pre-requisites for obtaining baseline AT&C LOSSES
5. Ring Fencing Diagram
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3. Drivers for AT&C Losses
TECHNICAL LOSSES COMMERCIAL LOSSES
 Overloading of system elements like
Feeders, Transformers & Conductors
 Absence of up gradation of Old Lines
and Equipment's
 Non Installation of Capacitors
 Low Metering/Billing/Collection Efficiency
 Theft, Pilferage and tampering of meters
 Inadequate Revenue Collection
 Faulty Meter Reading

4. GIS MAP SMAPLE (HAMIRPUR)
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33/11 KV
SUBSTATION

5. REPRESENTATION OF SUSPECETED THEFT CASES
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BILL NOT SHOWN/DOOR LOCK
NO CONNECTIONS
VALID CONNECTIONS

6. AT&C LOSS CALCULATION AT DTR LEVEL
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DTR
DTR, 25KVA
DTR, 25 KVA
(13 CONSUMERS
CONNECTED)
DT INPUT ENERGY: 3020 KWH
BILLED UNIT: 3020
DT INPUT ENERGY: 3020 KWH
TOTAL ASSESMENT: 15793.77
REALISATION: 11843 INR
BILLED UNIT : 2868 KWH
AT&C LOSS : 28.79%
ASSESMENT: 15793.77 INR
REALISATION : 11843 INR
AT&C LOSS : 28.71%

7. CALCULATION of AT&C LOSS : BILLING EFFICIENCY
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SI No.
DT INPUT
ENERGY (KWH)
ACCOUNT ID
METER
STATUS
BILL_BASIS CONSUMPTION
1 6368004000 FAULTY ASSESMENT (METER DEFECTIVE) 80
2 4485004000 ACTIVE METERED UNIT 400
3 7884004000 ACTIVE METERED UNIT 740
4 3872893000 FAULTY ASSESMENT (METER DEFECTIVE) 160
5 4414004000 FAULTY ASSESMENT (METER DEFECTIVE) 160
6 6492993000 ACTIVE METERED UNIT 291
7 872893000 ACTIVE METERED UNIT 160
8 7712004000 FAULTY ASSESMENT (METER DEFECTIVE) 245
9 2046993000 FAULTY ASSESMENT (METER DEFECTIVE) 80
10 942893000 FAULTY ASSESMENT (METER DEFECTIVE) 160
11 5797004000 ACTIVE METERED UNIT 157
12 2125993000 ACTIVE PROVISIONAL (HOUSE LOCKED) 104
13 5715893000 ACTIVE METERED UNIT 131
Total 2868
3020
Billing Efficiency= (Billed Unit/DT Energy) x 100 = 2868/3020 x 100 = 94.96 %

8. CALCULATION of AT&C LOSS : COLLECTION EFFICIENCY
SI No. ACCOUNT ID CURRENT_ASSESSMENT LAST_PAY_AMT LAST_PAY_DATE
1 6368004000 239.06 239 25-Aug-14
2 4485004000 2156.8 2157 25-Aug-14
3 7884004000 4042.76 4043 26-Aug-14
4 3872893000 862.4 0 26-Jul-14
5 4414004000 1421.71 0 30-Mar-85
6 6492993000 1540.7 1541 25-Aug-14
7 872893000 867 0 12-Apr-14
8 7712004000 1161.98 1161 26-Aug-14
9 2046993000 218.95 219 19-Aug-14
10 942893000 853.59 854 19-Aug-14
11 5797004000 828.37 829 25-Aug-14
12 2125993000 1221.36 0 1-Jan-11
13 5715893000 379.09 800 20-Aug-14
TOTAL 15793.77 11843
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 Collection Efficiency: (Collected Payment/Billed Amount) x 100
= 11843/15793.77 x 100= 74.98%

9. CONCEPT OF AT&C LOSS
COMMERCIAL LOSSES
Factors causing Commercial Losses:
 Meter tampering
 Bypassing of meters
 Usage of MAGNETS to slow down the meters
 Tampering of PT circuits
 CT/PT ratios (In case of HT meters)
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10. CONCEPT OF AT&C LOSS
COMMERCIAL LOSSES :- COLLECTION EFFICIENCY
 Utility is not being able to collect the complete amount billed by
it.
 Absence of Energy Accounting & Auditing
 In case of unavailability of arrear figures, the collection efficiency
figures can be more than 100%.
 Revenue collected shall exclude the arrears.
 In above cases efficiency needs to be restricted to 100% and shall
be used for computation of AT&C losses.
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11. PRE-REQUISITES FOR OBTAINING BASELINE AT&C LOSSES
 Metering of Energy Input Points of Project Area
 On incoming lines of 33/11 kV sub-stations located within project area.
 On 33 KV, 11 KV feeders emanating from sub-station located outside project
area but supplying power to HT/LT consumers located within project area.
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12. PRE-REQUISITES FOR OBTAINING BASELINE AT&C LOSSES
 Ring-fencing of Project area Electrical Network
 Import/Export meters at the boundary of those lines that are feeding
outside as well as inside project area so that import and export of
energy can be measured for project area. These lines may emanate
from the sub-stations located within or outside project area.
 Import/Export meters on the dedicated feeder emanating from sub-stations
located within project area but feeding outside project area.
 Import/Export meters on 33/11 KV Sub-Stations
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13. RING FENCING DIAGRAM
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