Presentation Secure Meters
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Electricity Metering and Management Confidential
Our presence • 6 Global locations with customers in 45 countries – Over 5 million meters and growing at over 1.5 million a year
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We are • First company to introduce electronic meters in India • India’s largest and No. 1 energy metering company • Largest exporter of metering products from India • Having 4 manufacturing plants in India and 4 R&D centers of excellence across the globe
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Prestigious Queen’s award for Export from UK
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Infrastructure
– Five modern manufacturing facilities in India – ISO 9001 Certified – Complete type test facilities – Design quality assurance – In-house reliability group – Total IT support for operations – OFGEM, UK approved manufacturing
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Infrastructure Cont….. • Strong focus on Research and Development • National award for R&D in electrical sector • Over 350 strong R&D team • Work force of more than 600 persons in field
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Systems Approach Whole current meter APEX Demand Controller ABT monitoring & billing Dual register meter Error compensation services Housing society payment solutions Building automation Grid Metering SITU calibration equipment Industrial Metering
HT/LT PREMIER
Commercial Metering
Remote reading MFM Meters
Domestic Metering Single phase meter/single phase prepayment metering system 7
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Yadav Measurements Pvt. Ltd. • Accredited by National Accreditation Board for Testing and Calibration Laboratories (NABL) since 1996 • Accredited by United Kingdom Accreditation Service (UKAS) since 1999 • Only UKAS accredited lab in India • Accredited as per IEC 17025: 1999 • BIS certified laboratory for static energy meters type approval testing. • Participation in various inter laboratory comparison and proficiency testing ….maintain and improve technical capability 8
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Metering School – Objectives Enhance understanding of metering, its application and limitations. Exposure to recent trends in electricity metering. Provide a forum for sharing experiences.
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Next Generation Metering
Next Generation Metering
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“I-Credit 300” (Single Phase Meter
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“I-Credit 300” (Features…) • • • • •
V range - 240V, -40% to +30% i.e. 144V-312VAC. Current Range - 5-30A, 10-60A, 20-100A Class 1.0, 50 Hz. AC. Shorted link design. Two current sensors: Shunt in Phase, CT in Neutral. • Self billing feature (ABC i.e. Authenticated Billing Code support for billing parameter)
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“I-Credit 300” (Features…) • • • •
6 digit LCD display Cage clamp terminal design Phase to neutral protection Ultrasonic Welding between meter base & cover • Energy recording in single wire operation • Capability to Display and Communicate in absence of power (through internal battery) 13
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“I-Credit 300” (Software) • Single / Bi-vector measurement possible. • Forwarded Energy registration during current reversal • Seasonal TOD registers, 4 No’s Max. supported. • High Resolution energy register. • Load Survey : 50+ parameter days for 30 minute IP • Upto 3 histories on display + 12 histories in reading
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“I-Credit 300” (Tampers/Events) • • • • • • • •
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Load Unbalance (ALARM1) Magnet interference. Neutral Disturbance. CT reversal. Power “ON” / “OFF” events Over Current. Cover opening detection. Spark Discharge.
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Prepayment metering or energy bank account: for today and tomorrow
Very few commodities we use first and then pay…. Why then Electricity?
• UK has been using prepay metering for more than 100 years!
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From old coin operated meters…..
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To State of art intelligent keypad meters....
UK alone has 3.7 Million prepay meters! 19
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Why Prepayment – Energy Supplier? Improved Revenue Cycle Pay before use Keep customers on supply Recover money owed (debt)
Lower Overheads Reduce or do away with Meter Readings No bill production No bill distribution No need to chase payments No further actions such as disconnections 20
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Why Prepayment – Energy Supplier? Social Acceptability Keep customers on supply Customer responsible for disconnection
Load and Demand Side Management Limit load Load based Time based
Discourage Tamper 21
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Why Prepayment – The Customer? >80% Mobile phones used in India are prepaid Flexible Payment Solution Pay to suit your income status Daily, Weekly , Monthly
Budgeting Show true cost of consumption and money left Reduce consumption when income is tight – make money last Reduce waste – conserve energy 22
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Why Prepayment – The Customer? No Bills No hidden surprises No having to find the money No billing errors
No socially unacceptable disconnections
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“Liberty” is Simple and Easy to use Credit is added to the meters Account
Number is entered into the meter A receipt is produced with the unique number printed on it
Repeat When Required
Go to Vending Outlet Buy as much electricity as you want to
Vending Outlet generates a unique numeric code Confidential
The Liberty Meter Tokenless - therefore no token provision or replacement costs Uses secure (Triple DES) encoded Vend Codes Codes are meter specific and can be used only once Codes can be vended from a variety of sources (Retail, Call Centre, Telephone, Internet….) Codes easily repeated at little cost if lost, from any source irrespective of the original vend source 25
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The Liberty Meter Functionality software based. Can easily be configured to meet the needs of the Utility Customer Friendly Functionality Plain Text messages and warnings Overload protection Load Limiting instead of / as well as disconnection 26
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The Liberty Meter Functions Account (default display) Calculates number of days before disconnection based on average daily usage over previous week Displays rate (up to 4) data and unit cost Displays on demand previous days, weeks and months costs (stores previous 12 months data) Current load (cost/hour) Previous codes entered Total cash entered Standing Charge/Debt kW MD Time, Date, Display Check 27
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The Liberty Meter Functions Friendly Credit No disconnection at night No disconnection at weekends No disconnection on Public Holidays
Meter functionality can be changed by Engineering Codes appended to a cash vend Change tariff prices Change tariff Change limits (Current Rating, Account Ceiling, Load Limit Level and Emergency Credit
Change of Tenancy Retained Credit
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Cost Information Cost of current load being used based on tariff price
Cost of previous day, week and month consumption Cost of previous 12 months consumption (month-by-month)
KW LOAD
PREV DAY
Rs. 307.50
PREV WEEK
Rs. 2750.00
LOAD COST
PREV MNTH
Rs. 8690.00
Rs. 23.75/HR
JAN Rs. 7389
KW
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5-25
DEC Rs. 6580
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Load Management Overload Protection and Demand Side Management Prevent meter from being overloaded or customers exceeding their load factor. Warning given when load is within a set percentage of disconnection limit
Similar regime can be employed for Load Limiting. Values set/changed by 20-digit ‘Change Limit’ transaction. LOAD HIGH
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OVERLOAD
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Flexible Tariff Capability Meter can store 8 predefined ‘Step’ tariffs First 500kWh at 3.0 Rs/kWh
Second 500kWh at 4.0 Rs/kWh
All remaining kWh’s at 5.0 Rs/kWh
Up to 4 rates can be defined Tariffs can have a monthly, quarterly or yearly reset In addition to the 8 ‘Step’ tariffs the meter can also store 8 predefined ‘Seasonal Time of Day’ (STOD) tariffs.
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Plain Text Alphanumeric Displays Can deal with most currency symbols (£, $ Ұ etc.) Allows easy to understand warnings to be given Allows text headers for displayed data Rs 250.00 Rs. 0.00
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MONEY LOW
ACCOUNT
NO MONEY
DAYS LEFT
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Fraud and Tamper Tokenless Therefore no apertures Hence nowhere to insert foreign bodies. No token acceptance issues.
Immunity to External Influences exceeds current standards
Authenticated communications
High security data encryption used for all data transfer (monetary and engineering)
Audit Log of events Downloaded at the same time as meter readings 33
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Fraud and Tamper Meter can be configured to perform a set action on detection of a tamper event: Disconnection with alarm Rejection of subsequent vends Setting of reportable tamper flag All or some of the above
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The Liberty Meter
Optional remote display and keypad Provides convenient two way communication with Liberty providing consumers with access to all of Liberty’s functions irrespective of the meters location 35
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The Liberty Meter New Functions
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Prepay to Credit mode and vice versa Authenticated Billing Codes (ABC) Scrolling Text Messages Paged Displays
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Vending to Liberty is Simple and Easy If code is lost it can be reproduced at any outlet – not necessarily the one that originally vended the code. With the right infrastructure the codes could be vended or reproduced at: Shops Banks Post Offices Call Centre Interactive Telephone System Internet 37
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Liberty Vend code
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Vending options
24 hr Call Centre
Shop Post Office Bank A N Other
The Internet
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Vending Options • • • • • •
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Web based vending Utility office outlet – PC based vending GPRS/CDMA Point of Sale terminal Integration with retailers ATM Machines Web portal
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Vending Options Contd… • • • •
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IVR SMS based vending Prepaid cards Proprietary kiosk
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ATM Machines and Bank portals
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Feature Set • We shall use already established relation between consumer & ATM machines. • There will be two options for consumers on ATM machines: Money transaction or electricity transaction. • For electricity transaction bank will first verify account of user for credit availability. • After verification vend code will be generated , printed & at the same time money will be deducted from consumer’s account. 43
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SMS based vending
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Self Billing System Putting the customer in control of their energy payments z z z z z
ABC code Generated by meters Either when pre-programmed or when prompted Liberty displays meter readings and authentication number. Authentication number can contain additional data (Fraud etc..) Information passed on by customer (manually, via IVP/IVR, touch-tone phone or Internet) Release number given in exchange
Data Code 45
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Indian Regulators • WBERC – has provided a rebate of 4.75% on tariff as incentive – Reduced meter rents from 25/- to 15/- in 1P and from 50/- to 30/- in 3P. – Mandatory for temporary connection.
• HPERC – Subsidized rate for prepaid consumers to encourage consumers. 46
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Indian Regulators Support.. • Haryana regulator had ordered implementation of prepayment scheme • Karnataka regulators have taken similar steps
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Government • Delhi – Govt Notice issued for Prepayment meters to be installed at all government offices and residential connections
• National electricity policy – Emphasis on prepayment metering
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Regulatory support needed – Consumer interests are properly being taken care of in the new system. – Consumers are being provided incentives (discount/rebates) to opt for prepayment voluntarily. – Tariff rationalization for retrospective computations
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NDPL has launched Value Power • Customer interface is the key to the project • The meters are now in operation and have generated good response • Tariff changes have been carried out as per Regulatory orders • Good customer response 1
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Himachal Pradesh • Tariff rebate proclaimed by the regulator • Pilot project underway • First indications of good response from the customer • Festivals (Urja Mela) are used for consumer awareness 51
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West Bengal • New town residential area • Wide spread educational campaign by the utility • Active support from Regulators • Placed order on Secure, after due tender process • Active participation by consumers and WBSEB
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Gujarat Utilities • Madhya, uttar and Dakshin Gujarat have placed orders • Each order of 250 meters each • Meters will be installed on middle class consumer in Surat and Vadadora • Consumer education campaign planned
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Builders in Delhi and NCR • Around 10000 meters installed • 15 accounts developed • New applications • Multi Element product Payment solution is a defacto metering scheme • Dual registers for mains and DG supply supported 54
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New CT/PT Operated Meters •Supports higher Baud Rate communication •Meter reading time less than 3 minutes for entire meter data. Enhanced memory capacity of the meter 600 events , 1000 Parameter days Load Survey, Last 12 billing histories
Enhanced Immunity • Meter made to withstand higher external influences • Higher Magnetic Immunity (0.5T) • Higher Electro static discharge immunity (Spark discharge -upto 35kV) 56
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‘Prodigy’-Composite Metering Unit for LT CT Metering Segment Innovation in the Metering Industry for LT CT Applications
Why Do We Need Innovative Product?
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Most electricity theft and losses occur in the low-tension network • Distribution is the weakest link in the power supply chain • Cost & Profit Center Energy accounting for import and export 58
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Metering in the LT CT Segment • Consumer Metering
– Complex arrangement of static energy meter, external CTs, meter box and accessories such as fuses, cabling etc • Distribution Transformer Metering
– Performed using the same meters as for consumer metering – Virtually no differentiation for this specialized application 59
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LT CT Segment Metering • Major problems with existing implementation – LT CT metering installations are quite complex as they involve: • external CTs, Static Energy Meter, Meter Box, connecting cables etc. – Terminal joints and other connections provide an easy path for fraud and other losses – Poor installation practices aggravate these problems 60
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LT CT Segment Metering • Major problems with existing implementation… – Metering units have to be segregated according to their CT ratios, e.g.50/5,100/5,150/5,200/5 – Some consumers hinder or even prevent Utility meter readers from entering premises to read meters – Distribution Transformer Metering is often found to be tampered or damaged by miscreants, yet no one is accountable for such meters 61
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LT CT Metering: Problem versus Solution – Collection of external accessories for metering (external CTs, Static Energy Meter, Meter Box, connecting cables etc) • Integrated Metering Unit specially designed for LT metering – no need for external accessories. – Poor system accuracy – determined by the errors in the energy meter and errors in the external CTs • Integrated Metering Unit has better inherent accuracy – Terminal joints and connections make theft easy, and can also introduce other losses due to poor contact • Innovative design eliminates the need for a terminal block, thereby preventing fraud and reducing other losses 62
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LT CT Segment Metering • Problem versus Solution… – Metering units have to be segregated according to their CT ratios, e.g.50/5,100/5,150/5,200/5
• Single wide-range meter suitable for most applications – Distribution Transformer Metering is often found to be tampered or damaged by miscreants, yet no one is accountable for such meters – Some consumers hinder or even prevent Utility meter readers from entering premises to read meters
• Integrated meter can be installed out of reach, and can be read remotely by wireless link 63
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LT CT Segment Metering Secure has pioneered the introduction of innovative metering
– Secure has designed a special product for LT CT segment applications – Secure introduced a unique metering concept
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LT CT Segment Metering
Thread Through Concept
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LT CT Segment Metering •
Design based on the Thread Through Concept where secondary cable of DT and/or the supply cable for LT CT consumer pass directly through the meter for measurement
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Long-range meter: (Current Range 40-200 A)
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Outdoor meter: IP-54 compliance
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Overall Product Accuracy : Class 1.0
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Oblique View of Prodigy Meter
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Stainless steel cable-piercing screw (volt tap)
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Floating clamp for securing/ tightening the cable.
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Distribution Transformer Metering - Scheme Meter with Low Power Radio
Radial distance of 100 Meter
Service line HHU 5-6m above ground level
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Meter Reader
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Prodigy- Principal Features •
Thread-through meter (cable passes directly through meter)
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Single wide-range metering unit (40-200 A)
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Class 1.0 system accuracy
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Low Power Radio (LPR) communication capability (range up to 100m)
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In built GSM Modem for remote communication. (Optional)
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Special anomaly recording features for DTM application viz. high & low voltage, over-load and under-load condition etc.
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Environmental protection to IP 54
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Prodigy- Principal Features (cont.) •
Snap-fit arrangement for meter cover & base
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Special arrangement for multiple cable connections for Distribution Transformer metering
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Meter stores cumulative energy values for Active (Forwarded), Apparent and Reactive (Lag and Lead)
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Historical Data: meter maintains value of energy, MD, TOD MD and ‘hours on & off power’ for the 12 most recent billing points.
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Load survey storage of energy values & ’instantaneous parameters’ up to 400 parameter days @ 30 minute integration period
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Abnormal Events logging: 200 time-stamped events can be logged
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Application Segments • Metering of LT Three-Phase Distribution Transformer
The meter is installed outdoors on
the secondary side of the distribution transformer. Meter is mounted 5-6m above ground level, near the transformer, and is read using LPR / GSM . • LT CT Consumer Tariff Application The meter is mounted outside the consumer’s premises. There is no need for external CTs or a Meter Box. 72
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STREET LIGHT ENERGY MEASUREMENT & CONTROL
Modern Solutions Weatherproof enclosure Astronomical Timing as per sunset & sunrise Capacitor for reactive compensation MCB for protection Energy metering & control for Streetlight 76
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7OHR
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