Download - ABT Present
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ABT Based Boundary Metering
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ABT Based Boundary Metering
ABT Boundary Metering+
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ABT Based Boundary Metering
ABT = Availability Based Tariff
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ABT Based Boundary Metering
So what is Boundary Metering?
How it is different from ordinary metering?
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ABT Based Boundary Metering
To Understand Boundary Metering.
First understand what is meant by
Metering of Electrical Energy?
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Metering means, measurement of
consumption of a consumer
And it means measurement of the
consumption at a point of supply tothat consumer
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ConsumerMeter A
Supply Line
Consumption = Energy Recorded By the Meter A
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Now Suppose
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ConsumerMeter A
Meter C
Meter B
Consumption = Sum of Energy Recorded By Meters A, B, C, D
Meter D
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Now let us further Suppose
There is a Customer instead of
Consumer of energy
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Consumer V/s Customer
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Consumer only consumes
&Customer consumes as well as supply
back
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Customers need Bi-Directional Meters
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ABT Based Boundary Metering
Customer with Single Supply lineneeds Single Bi-Directional Meter
Energy Consumption will be Net withSigns (+ve or ve)
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Sign Convention
Net Energy Export = +ve
& Net Energy Import = -ve
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So in case of Customer with Multiple
Supply Lines. Interface Points.
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ABT Based Boundary Metering
ConsumerMeter A
Meter C
Meter B
Consumption = Vector Sum of Energy Recorded By Meters A, B, C, D
Meter D
Energy Transaction = Net Energy Recorded By Meters A, B, C, D
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ABT Based Boundary Metering
OrEnergy Transaction with Other Power
Utilities
SoBoundary Metering Means Net Energy
Transaction with a Customer
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ABT Based Boundary Metering
Now We Understood What is BoundaryMetering
Boundary Metering Means Measurement ofEnergy Transaction Across a Region
Region in our case Normally means AnotherPower Utility or OA Customers
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Any Questions Please?
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ABT Based Boundary Metering
Now let us come to what is ABT?
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ABT = Availability Based Tariff
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ABT Based Boundary Metering
Now next obvious question is .?
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What is Availability Based Tariff?
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Understanding Availability Based Tariff
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Purpose of ABT is to Bring in GridDiscipline
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0 m 100 m
98 m0 m
@ 50 Hz => 300 RPM
@ 49 Hz => 294 RPM
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50.00 Hz
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Supply Demand
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Grid Security
Grid Reliability
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Tariff System Prevalent previously
Bill of a Utility Energy Drawl
Bill of a Generator Energy Produced
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50.00 Hz50.30 Hz51.00 Hz50.30 Hz50.00 Hz49.80 Hz49.30 Hz48.50 Hz49.00 Hz49.50 Hz49.80 Hz50.00 Hz
So Grid Frequency Used to.
Swing Wildly
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Tariff System Prevalent previously
No Incentives No Punishment
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ABT = Grid Discipline
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Supply Demand
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UFRsSCADA/ EMS
Free Governor Operation
Many other System for the purpose
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But Constraints
TechnicalPolitical
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Pseudo Balance ABT is an attempt to bring insome sort of balance between
Generation & Consumption
Using Money Power
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So UI ..
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If Grid Freq is more than 50Hz thenOverdrawing Utility will get energy at lessrate and if it is more than 50.2 then it is
free.If Grid frequency is less than 49.2 Hz then
the overdrawing utility has to pay more &more for UI.
Reverse conditions are applicable forGenerating Stations.
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Since the Original ABT Scheme there havebeen many Variations to bring in strictdiscipline and to stop profiteering by
energy surplus utilities.
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ABT Grid Discipline
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So Friends. This was a Short PrimerOn ABT
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Now Back to .
ABT Based BoundaryMetering
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So ABT Based Boundary Meteringmeans Boundary Metering based
upon ABT type meters
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ABT meters record Net EnergyTransaction at a Interface point
between the Power Utilities for eachof 96 Blocks of 15 Minutes every day
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ABT Meters are also called SEMs
Special Energy Meters
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In Punjab the Intra State transactions
are to be metered based upon ABTScheme in compliance to Punjab SGC
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For Which SO&C Organization in PSTCLis going to implement AMR systembased upon these meters
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Any Questions?
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