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[China]
Trade Verify
Address: No.270, Huangjinkou 3rd Village, Hanyang District, Wuhan City, Hubei Province, China
Contact name:Ada Yang
WUHAN RADARKING ELECTRONICS CORP. |
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PLC Automatic Meter Reading System DIN Rail Mounting Keypad Split Energy Meter Box
1. General Descriptions
Model DIN-BOX-168 box (hereafter referred as Tbox) is a
multifunction metering solution composed of meter Box,Measurement
& Control Unit (MCU), Data Concentrator (DC) and User Interface
Unit (UIU). Each Tbox can access the farend servers via GPRS, so
that the administrators can remotely operate Tboxes and read all
the meters' energy consumption information. It can help utility
companies to largely improve the management efficiency of their
power grids, and reduce the management cost. For users, UIUs
installed in their homes could achieve energy consumption data from
box via RS485communication, and display to users, so that it is not
only convenient for them to read data, but also avoid disruption of
energy measurement. Thus, this is a complete metering box solution
which combines measurement, use and management of energy.
The box is composed of PC (polycarbonate) cover and ABS base, with
performance of reliable insulation, high strength, good flaming
resistance, anticorrosion, antiaging and lifetime of over 10 years.
It could be widely used in housing construction or civil power
grids transformation, with features of multiple combinations of
different metering units, easy installation, hidden cableconnection
and safe operation.
2. Main Parameters
| No. | Item | Instructions |
1 | Current | Total threephase maximum current: 256A. Max current of one singlephase meter: 80A. |
2 | Connection Cables | 1) In the three phases, phases A, B & C respectively use
yellow, green and red connectioncable, the neutral line uses black
or blue cable, and the ground line uses yellow and greencable. 2) The cables for internal meters shall be at least BV16mm2 cooper cables. 3) The communication cables should be coppercore twistedpair cables with cross section no less than 0.7mm2. 4) The general cable for each phase shall be copper cable of at least BV50mm2. |
3 | Meter box with PCcover and ABS base. | 1) Tensile strength: ≥35Mpa 2) Bending strength: ≥65Mpa 3) Distortion temperature: ≥100ºC 4) Flame retardant rating: V0 5) Dielectric strength: ≥12 KV/mm 6) Impact strength: Charpy impact strength≥20kJ/m2 7) Sealing performance: With the performance of waterproof, dustproof and prevent thesmall animal into the meter box. |
4 | Temperature | 1) Maximum temperature: 55ºC (Average temperature ≤35ºC within 24
hours) 2) Average temperature of the hottest month: 35ºC 3) Minimum temperature:10ºC |
| 5 | Altitude | Altitude: ≤2000m |
6 | Humidity | 1) Daily average relative humidity ≤ 95% 2) Daily average water vapor pressure ≤ 2.2kpa 3) Monthly average relative humidity ≤ 90% 4) Monthly average water vapor pressure ≤ 1.8kPa |
| 7 | Lifetime | The expected life time of meter box ≥ 20years |
| 8 | Class of pollution | ≤ Class 2 |
3. Operation Principles
A single set of meter box is made of 1 Box, 12 MCUs, 1 DC and 12
UIUs. The box supplies power to the MCUs, DC and UIUs. The MCUs are
used for energy measurement, the UIUs for display of energy and
electrical parameters, while the DC for reading & transmitting
data from MCUs and communicating with the Server. Communication
between MCUs and DC is by RS485, between UIUs and DC is by RS485,
while between DC and Master Station System is by GPRS.
When the administrators need to read the meter data, below steps
should be taken:
1) The administrators send data reading command from the browser
interface;
2) The Server will receive the command and send to the DC via GPRS
communication;
3) The DC transmits the command to the MCUs and collects the data;
4) The DC sends the data to the browser interface;
5) The data will be saved in the database during this process.
Users can input some codes on the UIUs' keyboards to check and view
their energy consumption data. The displayed data arestored in the
UIUs, and the DC will keep sending and upgrading the latest energy
consumption data to the UIUs.
4. Installation Size
3. Components & Parameters
3.1. List of Components
Table 3.1 List of Components
No. |
Model |
Name of Components |
Application |
1 |
Tecun DDSY168 | Singlephase Twowire Meter (MCU) |
Measurement |
| 2 | Meter Holding Rack | To hold the MCUs firmly. | |
| 3 | Tecun DC01 | Data Concentrator | Data collection |
| 4 | Locking device | To lock the meter box | |
| 5 | RS485 Connection Block | To provide RS485 communication ports to UIUs | |
| 6 | Cover Opening Detector | To detect the opening of meter box cover | |
| 7 | Output Terminals | To output power to the users' homes | |
8 |
Vertical Installation Bars | To be installed vertically in the backside of meter box, for fixing the meter box onto the pole or wall. | |
9 | Horizontal Installation Bars | To be installed horizontally in the backside of meter box, for fixing the meter box onto the pole. | |
10 |
Hoop | To be installed in the backside of meter box, used for fixing the meter box onto the pole. | |
| 11 | Input Terminals | To input power from threephase power grid. | |
12 |
Neutral Line Terminals | Threephase input neutral line terminals and output neutralline terminals. | |
13 |
Cable Fixer | To fix the cables, avoid cables' shaking and preventwater dropping into box from cable entrances. | |
14 |
Tecun DDSY168 |
User Interface Unit (UIU) | To be installed in user's homes for users to check the energyconsumption information. |
