电表项目ZTE Prepayment Smart Meter Technical Proposal for BPDB_V1_ 20140403

ZTE Prepayment Smart Meter Technical Proposal for Power Division, Ministry of Power, Energy and Mineral ZTE Prepayment Smart Meter Technical Proposal for Power Division, Ministry of Power, Energy and MineralZTE Prepayment Smart Meter Technical Proposal for Power Division, Ministry of Power, Energy and Mineral_VersionDateAuthorReviewerNotes 2011 ZTE Corporation. All rights reserved.ZTE CONFIDENTIAL: This document contains proprietary information of ZTE and is not to be disclosed or used without the prior written permission of ZTE.Due to update and improvement of ZTE products and technologies, information in this document is subjected to change without notice.TABLE OF CONTENTS1Preface42Benefits of ZTE Solution53Proposed Solution73.1Design Principle73.2Architecture of Proposed Solution83.3Prepayment Smart Meter93.3.1Introduction of Keypad Prepayment Smart Meter93.3.2STS Features103.3.3Multi-ways of Recharge113.3.4ZX E211 (CL710C02) Single-phase Keypad Prepayment Meter123.3.5ZX E213 (CL710K11) Single-phase Split Wired Keypad Prepayment Meter143.3.6ZX E221 (CL730S1) Three-phase Keypad Prepayment Meter173.4Prepayment Vending Station System193.4.1System Introduction193.4.2System Characteristic193.4.3System Framework203.4.4System (B/S framework) Structure213.4.5System (C/S framework) Structure223.4.6System Main Functions223.5Meter box243.5.1Introduction243.5.2Installation of Meter253.6Evolution to AMI273.7Training Solution283.7.1Training Objectives283.7.2Trainees283.7.3Training Mode283.7.4Training Content284Successful Cases304.1ZTE Prepaid Metering System for ENE in Angola304.1.1Overview304.1.2Consider for Customer Interests and Achieve Win-Win304.1.3Customer Benefit315Summary32FIGURESFigure 41 Architecture of prepayment smart meter solution8Figure 42 Outlook of ZX E213 (CL710K11)14Figure 43 MCU dimension diagram15Figure 44 UIU dimension diagram15Figure 45 Meter wiring diagram16Figure 46 outlook of meter box24Figure 47 one (01) pcs of single phase meter25Figure 48 four (04) pcs of DIN Rail meter25Figure 49 eight (08) pcs of DIN Rail meter26Figure 410 One (01) pcs of three phase meter26Figure 411 Evolution to AMI solution27TABLESTable 41 Technical Specification for ZX E211 (CL710C02)13Table 42 Technical Specifications for ZX E213 (CL710K11)17Table 43 Technical Specifications for ZX E221 (CL730S1)181 PrefaceZTE Corporation, as a global leading communication company, has more than 20 years experience in designing traditional power system and has researched deeply on solutions for different situations, Now ZTE provides sub-solutions in smart grid field: Green Renewable Energy Solution, Reliable Power Automation Solution, Robust Power Communication Solution, Intelligent Power Surveillance Solution, Efficient Power Informationization Solution and Advanced Smart Meter Solution. With these solutions ZTE smart grid has been widely deployed in more than 50 countries by nearly 70 customers in electric power industry, such as ZESCO in Zambia, EEPCO in Ethiopia, ENE in Angola, CADAFE in Venezuela, NGCP in Philippines, ONE in Morocco, SGCC in China etc. ZTE has a powerful implementation team with years experience on projects, has more than 100 representatives around the world, has powerful project delivery capability with years of experience on the global distribution platform. And based on customers financial condition, ZTE provides flexible paying models: full payment, phase by phase, for pay as saved, deferred payment. ZTE is a qualified provider in these projects.Chapter 1 gives a brief summary of the purpose why ZTE provide this proposal.Chapter 2 shows the benefits of ZTEs solutionChapter 3 shows detailed introduction of ZTEs unique smart meter solution for BPDB.Chapter 4 gives successful cases of ZTE smart meter solution.Chapter 5 gives a summary of ZTE and this smart meter proposal.2 Benefits of ZTE Solutionl Fully comply with international standardsThe meter ZTE proposed complies with IEC 62052, IEC 62053, IEC 62055, and IEC 62056. l State-of-the-art ASIC, high accuracy and sensitivity, high reliability wide load etc.The meter ZTE proposed has ISO, KEMA and CNAS certification.l Evolution to AMI smart meterThe meter ZTE proposed has PLC module which can be used as AMI smart meter to support AMR (Auto Meter Reading) and remote control smoothly.l Enhanced anti-tampering designThe meter has enhanced anti-tampering design: terminal cover opening detection and automatic disconnection, reverse energy detection, alarm and disconnection over power limit.l Small size light weight and easy installationThe meter ZTE proposed is DIN rail mounted, which can be easily installed in meter box without screw. And between MCU and CIU, the communication is PLC based without any wire line between MCU and CIU. The customer can plug-in the CIU in power outlet for connection with MCU.l Low balance alarmIf the balance is lower than preset value, the meter will alarm by showing message in LCD screen or trip to notify the customer to recharge.l Bi-directional measurementThe meter can measure both forward and reserve active power. Reverse power can be measured in forward power and stored in the total active power. When there is reverse, there is always a reverse arrow on the LCD.l Support TOU energy consumptionl Low power consumption design3 Proposed Solution3.1 Design PrincipleAccording to RFP of Power Division, Ministry of Power, Energy and Mineral, ZTE has proposed ZX E213 (DDSD101-DT2) single phase din rail split keypad prepayment smart meter and some other auxiliary materials such as meter box, HHU etc.l Quick launch for smart metering The Power Division, Ministry of Power, Energy and Mineral can reduce the CAPEX in current phase as far as possible and can collect the power fee from the customers as quick as possible.l Powerful vending when the prepayment smart meter has been deployed, the customer should find it convenient to recharge.l Anti-tampering the proposed solution should support anti-tampering and should have some protective design to avoid the customers tampering action.l Controllable and manageable the solution should help the Power Division, Ministry of Power, Energy and Mineral to manage the grid as easily as possible.l Evolution to AMI AMI is the trend of smart metering, so the solution should be upgraded to complete AMI structure. According to the above principles, ZTE has proposed a prepayment smart meter for Power Division, Ministry of Power, Energy and Mineral, which include prepayment meter, meter box and vending system etc.3.2 Architecture of Proposed SolutionFigure 31 Architecture of prepayment smart meter solutionThe proposed solution includes the following parts:l Prepayment meter, these meters will be single phase and three phase split keypad prepayment meters which are used by residents or industries. The customer can buy voucher for recharging.l Meter box, which is used to anti-tampering of power and to avoid meter destroy. l Prepayment vending station system, which contains Master station and Vending station, these stations will provide both Power Division, Ministry of Power, Energy and Minerals billing and consumers payment.3.3 Prepayment Smart Meter3.3.1 Introduction of Keypad Prepayment Smart MeterKeypad prepayment smart meter is a type of meter that exchanges information through virtual carrier - token.Token is a serial of numbers, for example 2837 5872 3731 6854 3423. An exclusive token can be created by prepayment system, and user just need to enter the token to meter with keypad. Meter will decode the token according to agreement so that the recharge/purchase can be achieved.So far the only international standard of payment system is IEC62055. Established in 1997 by South Africa STS (Standard Transfer Specification), IEC62055 has been nominated as international standard by the same association.Since meters that comply with IEC62055 need to pass the tests of STS and adopt standard security module encryption calculation, the meters and systems from different manufactures are always compatible with each other.IEC62055 standard covers prepayment system, user information system, energy selling system, transmission carrier, standard of data transmission, prepayment energy meter and interface standard etc. It is architecture about the entire prepayment system.IEC6205521: Framework for standardizationIEC6205531: Static payment meters for active energy (classes 1 and 2) IEC6205541: Standard transfer specification (STS) - Application layer protocol forone-way token carrier systemsIEC6205551: Standard transfer specification (STS) - Physical layer protocol for one-way numeric and magnetic card token carriersIEC6205552 Standard transfer specification (STS) - Physical layer protocol for a two-way virtual token carrier for direct local connectionThe workflow of keypad prepayment smart meter can be shown as following: When the balance is lower, the meter will alarm the customer. And the customer will buy power via vending system (CDU, retailer, SMS, E-Bank etc.) to get a token code. The customer input the token code in keypad for recharge.3.3.2 STS Featuresl Exchanging data and information through virtual carrier (20 digits token), STS prepayment system goes well with development of communication technology in future.l STS standard can be used to define and recharge credit for energy meters, water meters, gas meters and meters for other public usages.l STS is a secured communication system in which information passes between vending system and meter.l Taking IEC 62055-41 as the only international standard for prepayment system, STS is a security transmission standard which opens to the world.l Cipher code security technique is furnished (Cipher codes are classified. Electricity companies manage cipher codes of their own)l Every TOKEN, meter, vending system and the entire prepayment system enjoys protection from different level of security.l Reliable encryption system technically reduces attacks to the system.l Products involved in the system need to get approval from STS.l TOKEN is reliable in transmission. Meter accepts every TOKEN only once, repeat entry will be ignored. Every TOKEN is combined with the meters information and works on nominated meter only.l There are at least 20 million STS meters installed in hundreds of electricity companies in the world.l STS ensures compatibility among different meter products from different manufactures: Electricity Company can purchase meter or prepayment system from any manufacture that has passed STS approval without worrying about system security.3.3.3 Multi-ways of Rechargel Recharge through short message (SMS)l Recharge through internetl Recharge in operation halll Scratch cardl POS recharge in stores l Recharge cardsl Recharge though E-bankl Recharge though service hot line (i.e. 95598)l Recharge through ATMl Recharge in retail outletl Portable vending terminal3.3.4 ZX E211 (CL710C02) Single-phase Keypad Prepayment Meter3.3.4.1 DescriptionZX E211 (CL710C02) single phase keypad prepayment electronic meter is a kind of electronic meter which meet IEC62055 STS standard with 20 digits STS token as the information exchange medium. ZX E211 (CL710C02) has a numeric keypad in measurement & control unit (MCU) or in independent user interface unit (UIU) for operation (e.g. recharge, configuration, inquiry etc.). For split meter, PLC or twisted-pair wire will be adopted between MCU and UIU.3.3.4.2 Featurel STS certificationl 20 digits of virtual tokenl Measure total active energy, demand and residual creditl Support TOU (Time of use) or stepwise tariffl Low balance alarml Overload controll Emergency overdraftl Anti-tamperl Event recordingl Consumption record storage for 12 monthl Recharge record storage for 10 timesl Split meter connection between MCU and CIU by PLC or twisted-pair wire.3.3.4.3 Technical SpecificationTable 31 Technical Specifications for ZX E211 (CL710C02)Voltage230VWorking Voltage Range120-300VCurrent10(60)AStarting Current0.4%IbRated Frequency50HzFrequency range5%AccuracyClass 1.0Voltage Line Loss1W/1.2VACurrent Line Loss1VADisplay8 digits LCD with 6+2 or 7+1 displayProtection rateIP54Temperature-2570 Limited Working Temperature-40+70 Humidity95%Product Design Life 12 years3.3.5 ZX E213 (CL710K11) Single-phase Split Wired Keypad Prepayment Meter3.3.5.1 DescriptionFigure 32 Outlook of ZX E213 (CL710K11) 3.3.5.2 Meter Dimension DiagramFigure 33 MCU dimension diagramOutline dimension: 156.20mm101.60mm40.00mmFigure 34 UIU dimension diagramOutline dimension: 160.00mm105.00mm52.00mm3.3.5.3 Meter Wiring DiagramAll movable terminals of meter locate in the connection terminal cover with secured screws fitted with user seal to prevent from operations such as unauthorized connection or other settings, etc.Figure 35 Meter wiring diagram3.3.5.4 Major Executive Standard1. IEC62052-11 Electricity metering equipment (A.C)-General requirements tests and test conditions- Part11: Metering equipment. 2. IEC62053-21 Electricity metering equipment (A.C)-Particular requirements-Part21: Static meters for active energy (classes 1 and 2).3. IEC62055-31 Electricity metering -Payment systems-Part31: Particular requirements Static payment meters for active energy (class 1 and 2). 4. IEC62055-41 Electricity metering-Payment systems-Part 41: Standard transfer specification (STS) - Application layer protocol for one - way token carrier systems.5. IEC62055-51 Electricity metering-Payment systems-Part51: Standard transfer specification (STS)-Physical layer protocol for one-way numeric and magnetic card token carriers.3.3.5.5 Technical SpecificationTable 32 Technical Specifications for ZX E213 (CL710K11)ITEMSPECIFICATIONSRated current10(60)ARated voltage230 (0.7Un-1.25Un)Frequency50HzStarting current0.4%lbClass1.0Continuous Work Time10yearOperation temperature -1055Transport and storage temperature-2570Relatively humidity 12 years3.4 Prepayment Vending Station System3.4.1 System IntroductionZX E800 (CL781) Keypad Prepayment Vending System meets the STS standard. It follows IEC 62055-41 communication protocol, adopts 20 digit Encrypted number for data carrier to transfer purchase information to meters. It has diverse ways to purchase electricity: Vending station, Mobile vending, Internet online vending, SMS, ATM, scratch cards etc.The system also can expand according to the need of user. The system is also to act as a central data storage base for reporting as well as provide for total management, administration, financial and engineering control. The system can interface with the Vending Stations or Credit Dispensing Units (CDUs) via a modem and communication network. We can show the vending dada through an excel etc.3.4.2 System Characteristicl Storage management.l Customer information management.l Power vending.l Refund management.l System parameters management (Price, tax rate).l Vending station credit limit.l History arrear management.l Data interface for other billing system.l Setting for report format.l Meter reading management.l Token management.l Security module management.l Security files management.l Operator management.l Can direct control CDU or vending system.l There are different authority levelsl Files management.l Report analysis.l Many kinds of language support (Independent language files).3.4.3 System FrameworkZX E800 (CL781) Keypad Prepayment Vending System has two different versions: C/S (Client/Server) framework vending system and B/S (Browser/Server) framework vending system.l For C/S framework vending system, it does not need high-level hardware and network service. As to data transfer from Client vending station to database server, it supports via USB flash or E-mail. This solution is the economic way at first stage.l For B/S framework vending system, it needs high-level hardware, stable network service and devices for safety. The cost for B/S is higher than C/S at the first s