Minimum Specifications of OSOS Counters; Smart Meter automation is the most important point to consider for electricity distribution companies. What is OSOS?
We learned from the energy ministry's statement that the decision to start meter automation from Istanbul has been a gratifying development on behalf of the Public,
It is also known that some of the private sector organizations that have obtained distribution licenses are also working on this issue. In terms of preparations for both private distribution companies and service servers, the common minimum specifications issued by the Energy Market Regulatory Board are organized as below.
These specifications state the minimum requirements as stated. For this reason, it is the authority of companies to select higher levels of equipment.
In addition, a detailed study of the data structure is required.
Contents
Minimum Specifications of OSOS-Covered Counters
COMMON TECHNICAL FEATURES OF THE COUNTERS, COMMUNICATION EQUIPMENT AND ADDITIONAL EQUIPMENT AND INFRASTRUCTURE TO BE INCLUDED IN THE SCOPE OF OSOS TO BE ESTABLISHED BY THE TRAINING COMPANIES
1.THE FOLLOWING TECHNICAL FEATURES OF THE COUNTERS TO BE USED UNDER OSOS
1.1.The counters have been carried out the necessary tests in accordance with the provisions of the applicable legislation and will have a system approval certificate.
1.2.According to the status of the measuring point used, it must carry the minimum characteristics prescribed in electricity market legislation.
1.3.The meter must have internal communication equipment for providing remote communication or an optical port independent of the optical port, cl or RS 485 electrical communication port or ethernet (RJ45) communication port to provide communication with external communication equipment.
1.4. As of 01.01.2013, the counters that will be included in the distribution company's OSOS system must be of the same feature that, even if the energy is cut off, can record the opening interventions of the front cover and the klemens cover and allow this information to be read through the communication hardware (the number of magnetic field -magnet- interventions and the last 10 records on start/end dates and times).
1.5. Counters must have load profileing, load profile should be able to do within periods of 15, 30, 60 minutes, load profile measurement periods should be remotely adjustable.
As of 1.6.01.01.2013, the counters included in the distribution company's OSOS system should be able to store load profiles containing measurements every 15 minutes for at least 90 days in memory.
1.7. The battery that feeds the actual time clock of the meter must have a life span of at least 10 years from the date of manufacture.
1.8. Time synchronization of counters should be remotely doable.
1.9. The impact resistance voltage between the main terminals of the counters included in the OSOS system must be at least 6 kV in accordance with the relevant standards.
1.10 The process of creating and resetting demant information on counters can be done automatically at the scheduled date-time or by pressing a button under the seal or remotely via communication equipment.
1.11 Counters should be able to implement the clock-back and back-and-forth (daylight saving time application) automatically itself, or change the time and day by gaining remote access at the same time.
2. THE MAIN TECHNICAL FEATURES OF THE COMMUNICATION UNIVERSITY THAT SUPPORTS GSM/GPRS NETWORKS
2.1.Support standard internet protocols (TCP/IP, etc.) and connections.
2.2. There should be no dependency on a single communication operator.
2.3. It must support RSA, DES, 3DES, AES or BLOWFISH or one of the up-to-date encryption algorithms with high security with international standard in communication with control center software.
2.4. External modems must have at least one digital input, one digital output, or relay output unit.
2.5. The cover of the communication port and other connection terminals must be sealable type.
2.6. Authentication and encryption must be performed.
2.7. It should not allow any other connection other than defined IP or IPs.
2.8. For this purpose, at least one IP and TCP ports for these IPs must be identified to the device in order to identify the communications-authorized Control center and/or other centers.
2.9. In the new OSOS systems, the communication unit should support two-way communication between the measuring point and the control center if needed within the framework of the planning to be made by the distribution company.
2.10. External modems must have a real-time clock. Changes to the actual time clock and parameters must be made locally and remotely, with password protection for this operation.
2.11. Must have a CE Certificate.
2.12. It must be able to communicate between the measuring points and the control center via the GSM/GPRS and/or EDGE 900/1800/1900 Class B communication channel.
2.13. With RS232, RS485, or Cl input/output intermediates on it; Measurement Points, communication operator and control center related descriptions, software updates and updates related to communication protocols should be made locally. In addition, these descriptions and updates on the communication unit can be made from the Control center.
2.14. If the integrated communication module is used, the communication module must be replaced before the certification seal of the counters is opened and the meter is removed.
2.15.All or preferably some of the data on the counters (accrual based data, daily load profile, event records, active-reactive consumptions, etc.) can be transferred to the control center through the communication unit.
2.16. On external modems, the communication unit must keep records of the events described below (event LOG), transmit the occurrence of these records as a warning to the control center, or be questioned from the control center:
– Remote or local program updates and parameter definitions
– Access from unauthorized IP other than defined IP
2.17. It must be in accordance with the environmental conditions provided by the counter/counters to which it is least connected.
2.18. For the energy requirement, the measuring point must have the appropriate equipment (internal or external) to the voltage level.
2.19. In environments where the signal level is low, the antenna must be connected to raise the signal level.
2.20. There should be warning indicators on the communication unit indicating that energy, connection status to the GSM network and communication are being made.
2.21. Software and hardware must be in accordance with accepted National or International Standards.
2.22. The communication unit should support communication according to at least TS EN62056-21 mode C in communication with the meter. Communication speed must be selected as constant or variable.
2.23. The communication unit will be fed with 220 V (AC) and the communication unit to be used at primary measurement points will have a supply of 57.8/100 V (AC).
2.24. If the modem is integrated with the counter, it will be the same as the counter's supply voltage.
2.25. It will be unaffected by electromagnetic fields.
2.26. It will be 50Hz and +/- 5% Hz frequency range.
2.27. The communication units to be used must adapt to the communication speed of the meters.
2.28. Communication parameters of the communication unit (baudrate, parity, databit, stopbit, time-out period) can be changed according to the number at the point of measurement.
2.29. Communication units must have a self-reset feature in case of communication cessation or adjustable time.
2.30. In external type communication units that will be included in the OSOS system, impact resistance against fluctuations in the network must be at least 6 kV.
3.THE MAIN TECHNICAL FEATURES OF THE COMMUNICATION UNIVERSITY SUPPORTING THE PSTN NETWORK
3.1. The cover of the communication port and other connection terminals must be sealable type.
3.2. It must be in accordance with the environmental conditions provided by the counter to which it is least connected.
3.3. For the energy requirement, the measuring point must have the appropriate equipment (internal or external) to the voltage level.
3.4. The communication unit will be fed with 220 V (AC) and the communication unit to be used at primary measurement points will have a supply of 57.8/100 V (AC).
3.5. There should be warning indicators on the communication unit indicating the connection status to the network and the communication.
3.6. It must have a real time clock on it. Changes to the actual time clock and parameters must be made locally and remotely, with password protection for this operation.
3.7. Necessary permissions and approvals must be received from the relevant agencies in order to connect to the PSTN network.
3.8. The communication unit must support communication according to at least TS EN62056-21 mode C in communication with the meter. Communication speed must be selected as constant or variable.
3.9. If the integrated communication module is used, the communication module must be replaced before the certification seal of the counters is opened and the meter is removed.
3.10. The communication units to be used must adapt to the communication speed of the meters.
3.11. Communication parameters of the communication unit (baudrate, parity, databit, stopbit, time-out period) can be changed according to the number at the point of measurement.
3.12. Communication units must have a self-reset feature in case of communication cessation or adjustable time.
3.13. In external type communication units that will be included in the OSOS system, impact resistance against fluctuations in the network must be at least 6 kV.
4.THE BASIC TECHNICAL FEATURES OF THE COMMUNICATION UNIVERSITY SUPPORTING THE PLC NETWORK
4.1. Narrow Band (NPL) or broadband (BPL) will modulation.
4.2. TCP/IP, DLMS/COSEM, will support at least one of the SML protocols.
4.3. It will be suitable for two-way communication.
4.4. EN 50065 (CENELEC) will be in accordance with the relevant sections of the EN 61000-3 Standard series.
4.5. The impact resistance of the communication units included in the OSOS system against fluctuations in the network must be at least 6 kV.
5.THE FOLLOWING TECHNICAL FEATURES OF THE COMMUNICATION UNIVERSITY THAT SUPPORTS THE RF NETWORK
5.1.In external communication units RS232, RS485 can be preferred according to the desired communication method.
5.2. It should be able to communicate two-way data.
5.3. Must have data transmission speed that can rise from 2.4 kbps
5.4. RF output power must be adjustable with the program.
5.5. Receiver and Transmitter band ranges must be adjustable with the program.
5.6. The desired modems (nodes) must have a repeater function.
5.7. It should have a readable function with the central unit.
5.8.The impact resistance of the communication units included in the OSOS system against fluctuations in the network must be at least 6 kV.
Minimum Technical Specifications of OSOS Counters were determined by EPDK by regulation.
Source:EPDK
Coskun Tezel
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