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POWER FACTOR
CORRECTION
USING CAPACITORS
Proposed By
Viz Technologies Private Limited
Viz Green Energy Private Limited
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About Us
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About Us
Viz Technologies Private Limited
established in 2004
manufacturer of capacitors
ISO 9001:2008 company
BIS License No. CM/L 6700260
Supplying to leading companies such
as Larsen & Toubro, Crompton
Greaves and Havells
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I S : 1 3 3 4 0
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Introduction
According to a study, there is an
energy savings potential of 25 X 1012
KWh/annum (25 Trillion Units/annum)
reactive power compensation in India.
An unknown, but for sure a great
share of this potential is stilluntapped.
Source - Power capacitors in Distribution System
Electrical India March 2012 Issue
Proposal
Power Factor Correction (PFC)
through Capacitors
at LV side of AGL DTRs
Scope of Project
Supply
Installation
Maintenance
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Power Factor
Low Power Factor
At AGL DTRs due to Inductive Nature of Motors
Disadvantages:
increases KVA demand
increases line losses
excess system capacity is occupied requires larger capacity equipment
reduces efficiency of equipment
reduces line voltage
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Power Factor Correction
Power Factor can be corrected / improvedby adding capacitance
The Power Factor can be brought veryclose to unity
Achieved by installing an appropriate sizeof LT Shunt Capacitor at LV side
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Pilot Project - 1
Pilot conducted on 40 Nos DTRs
Covering an entire feeder at Ibrahimpatnamsub-station, Ranga Reddy District
PF without capacitor 0.74
PF after installing capacitor 0.96
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- 6 7 0 0 2 6 0
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Pilot Project - 2
Pilot conducted on 112 Nos DTRs
Covering an entire HVDS feeder at Puttur sub-
station, Chitoor District
PF without capacitor 0.7421
PF after installing capacitor 0.9546
I S : 1 3 3 4 0
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Pilot Project - 3
Pilot conducted on 125 Nos DTRs
Covering an entire HVDS feeder at Tadimallasub-station, West Godavari District
PF without capacitor 0.80
PF after installing capacitor 0.97
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Pilot Project - 4
Pilot conducted on 34 Nos DTRs
Covering an entire feeder at Mettu sub-station,
Siddipet
PF without capacitor 0.817
PF after installing capacitor 0.893
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Pilot Projects
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Pilot Projects
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16 kVA 4.5 kVAR25 kVA 7 kVAR
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High Power Factor
Advantages of High Power Factor
Reduction in KVA demand
Release of system capacity
Reduction in line losses
Improves voltage and regulates it Improves efficiency of equipment
Service higher load with existing equipment
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Quantifiable Savings
Among the various advantages of a higherpower factor, we can easily monitor and
quantify,
Reduction in line losses
in terms of Millions of Units (MU) saved, bytaking periodic feeder level meter readings
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Quantifiable Savings
Assuming,
Baseline PF of 0.76
Improved PF of 0.90
Agri Power Consumption in AP 17500 mu
Line losses up to LV side of DTRs - 10%
The total annual savings from PF correctiononly in agricultural DTRs in A.P. is
~ 500 Million Units
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Project Scope
Procurement & Supply of LT capacitors
Installation at LV side of Agl. DTRs
Maintenance & Monitoring
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I S : 1 3 3 4 0
I S : 1 3 3 4 0 I S : 1 3 3 4 0
I S : 1 3 3 4 0
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Project Scope
Procurement & Supply of LT ShuntCapacitors
Viz will be responsible for the procurement and timelysupply of the capacitors, including QC and QA.
Only ISI marked capacitors shall be installed.
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Project Scope
Installation at LV side of Agl. DTRs
Viz will take up the installation of the capacitors at the
low voltage side of distribution transformers
Viz will hire and train technicians to carry out theinstallation works
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I S : 1 3 3 4 0
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Maintenance & Monitoring
Viz personnel will periodically check the health of everycapacitor, and replace any defective capacitorsimmediately. Viz has estimated a total requirement ofhundreds of field staff for maintenance and repair of
capacitors in AP.
Periodic meter readings will be taken at the 11 KV feederlevel, in order to monitor the effectiveness of theinstallations and measure the savings.
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Finance
No upfront Cost to Utilities
Viz will finance the procurement, installation andmaintenance of capacitors
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I S : 1 3 3 4 0
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Finance
Viz requests a share in the savings achieved fromthe execution of this project
Effectively zero cost to Utilities, as payment willbe from accrued savings
In fact, a huge upside to Utilities
Upside to Utilities
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Advantages of Project to Utilities
Reduction in line losses only part of the savings paid to Viz
Following benefits remain entirely with Utilities
Reduction in KVA demand
Release of system capacity
Improves voltage and regulates it
Improves efficiency of equipment
Service higher load with existing equipment
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THANK YOU!
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