一、Product Summary
Dear users, thank you for using our three-phase guide meter. Please read this instruction manual carefully before using it, so that you can easily use our products.
Three-phase cost-controlled intelligent watt-hour meter adopts large-scale integrated circuit, A high-precision special chip for electric energy metering is used, and the communication capability and reliability of its carrier module have also reached the level of wide practical application. Digital sampling processing technology and SMT technology are applied to design and manufacture modern advanced level instruments according to the actual power consumption conditions of industrial users.
GB/T 17215.301-2007 "Special Requirements for Multi-function Watt-hour Meter"
Q/GDW 1354-2013 Functional Specification for Smart Watt-hour Meter
Q/GDW 1354-2013 Functional Specification for Smart Watt-hour Meter
Q/GDW 1364-2013 Technical Specification for Single-phase Smart Watt-hour Meter
Q/GDW 1365-2013 Technical Specification for Safety Certification of Information Exchange of Smart Watt-hour Meter
二、Working Principle
The three-phase fee-controlled intelligent watt-hour meter is mainly composed of a measuring unit and a data processing unit. Besides measuring active and reactive energy, it also has more than three functions such as time sharing, measuring demand and remote fee control, and can display, store and output data.
三、Function List
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Serial Number |
Functions |
Details |
|
Communication module |
Communication mode |
Supported Band |
|
M66 (GPRS Communications) |
850/900/1800/1900MHz |
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BC26 (NB Communications) |
B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B26/B28/B66 |
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|
BC35G (NB Communications) |
B1 @ H-FDD: 2100 MHz B3 @ H-FDD: 1800 MHz B8 @ H-FDD: 900 MHz B5 @ H-FDD: 850 MHz B20 @ H-FDD: 800 MHz B28 @ H-FDD: 700 MHz |
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BG96 (NB/GPRS/CATM Communications) |
Cat M1/Cat NB1: LTE FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/ B19/B20/B26/B28 LTE TDD: B39 (For Cat M1 Only) EGPRS: 850/900/1800/1900MHz BG96-M Cat M1: LTE FDD: B1/B2/B3/B4/B5/B8/B12/B13/B18/ B19/B20/B26/B28 LTE TDD: B39 |
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BC66 (NB Communications) |
B1/B2/B3/B4/B5/B8/B12/B13/B17/B18/B19/B20/B25/B26*/B28/B66 |
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|
Lorawan Newsletter |
Supports CLASSA, CLASSB, CLASSC modes |
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RS485 communication |
With RS485 interface |
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WiFi communication |
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Display Module |
The watt-hour meter uses LCD to display information; The visual size of LCD screen is 85mm (length) × 50mm (width); The specific size of each character shall conform to the provisions of Appendix J. -The performance of normal temperature LCD should not be lower than that of FSTN type material, and its working temperature range is 25 ℃ ~ + 80 ℃; -The performance of low-temperature LCD should not be lower than that of HTN type material, and its working temperature range is 40 ℃ ~ + 70 ℃; -LCD shall have backlight function, and the backlight color shall be white; -LCD shall have high contrast; -LCD shall have a wide viewing angle, i.e. the line of sight is perpendicular to the front of the LCD screen, and the upper and lower viewing angles shall be ≥ ± 60; -The polarizer of LCD shall have anti-ultraviolet function; -See FIG. 1 for the contents displayed by LCD; See Table 4 for the description of each figure and symbol in the figure; Different types of watt-hour meters can select corresponding display contents as required. |
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Indicator light |
Watt-hour meters use high-brightness, long-life LED as indicator lights. The layout position of each indicator lamp shall refer to the appearance diagram of the watt-hour meter in the appendix, and the requirements are as follows: -Active energy pulse indicator: red; It goes out at ordinary times and flashes when measuring active electric energy. -Reactive energy pulse indicator: red; It goes out at ordinary times and flashes when measuring reactive energy. -Trip indicator: yellow; It turns off at ordinary times and turns on when the load switch is turned off. |
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Electricity acquisition module |
TTL serial communication collects the electric quantity of the base plate, using CJ188 protocol |
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Trigger Escalation |
Use magnet to trigger 1-6s to report accumulated flow and equipment status |
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四、Performance characteristics
1. Embedded with high-speed and high-precision AC voltage and current acquisition module, with high sampling accuracy and real-time and accurate electric energy measurement;
2. It can measure combined active power, positive and negative active power and demand in time-sharing, combined reactive power and four-quadrant reactive power, and has 485 communication, LORAWAN/NB communication and other functions;
3. Embedded ESAM module with high confidentiality to realize the security authentication process between the electricity meter and the system master station and ensure the security and integrity of data interaction with the system master station;
4. Excellent electromagnetic compatibility, can resist the interference of high voltage spike pulse, strong magnetic field, strong static electricity and lightning surge, and has strong temperature self-adaptation capability;
5. Three-phase power supply (i.e. line power supply mode), when any one of the three-phase and three-wire lines or any two of the three-phase and four-wire lines are powered off, the watt-hour meter can still work normally;
6. Under the condition of losing AC power supply, the watt-hour meter can keep data and keep the clock chip working;
7. Low power consumption.
五、Technical Parameters
|
Voltage Input |
Rated voltage |
3 × 220/380 V |
|
Reference frequency |
50Hz |
|
|
Voltage Line Power Dissipation |
≤ 1. 5W and 5VA (static) |
|
|
Current Input |
Input Current |
3 × 1. 5 (6) A, 3 × 5 (20) A, 3 × 10 (40) A, 3 × 5 (60) A, 3 × 20 (80) A, 3 × 10 (100) A |
|
Starting current |
≤ 0.004 Ib |
|
|
Current Line Power Dissipation |
< 2VA |
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|
Measurement accuracy |
Accuracy |
Level 1/Level 2 |
|
Daily timing error |
0.5 sec/day |
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|
Pulse |
Pulse constant |
6400,400 (imp/kWh) |
|
Additional Parameters |
Normal operating temperature |
-25 ℃ ~ + 60 ℃ |
|
Storage and working humidity |
≤ 85% |
|
|
Battery capacity |
≥ 1200 mAh |
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|
Rate Period |
Number of rates |
4 |
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Number of periods |
8 |
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Communication Support |
Lorawan/NBIOT/GPRS/RS485 |
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六、Product structure and size
| Rated voltage | 380V/415V |
| Reference frequency | 50Hz |
| Input Current | 3×20（80）A、3×10（100）A |
| Normal operating temperature | -25℃~65℃ |
| Communication Support | Lorawan/NB/GPRS |
