The main functions and features :
Meter circuit design and selection of the components are according as the tolerance of greater choice of environment, so we can guarantee long-term stability of a piece of work. Basically error will not affected by the frequency, temperature, high harmonics, and the installation of location is arbitrary. After sealing unit manufactured without adjustment, greatly reduced the power sectorf+s workload of testing and calibration, meter - button box with pulse interface light coupler facilitate error testing. Detection the constant of pulse output / kw.H to find weather it is the same as constant table marked on nameplate meter, meter also provides low-frequency pulse acquisition (opts). When the one phase of three-phase three-line network is broken, three-phase four-wire network with a two-phase power outages, the watt-hour meter still normal, and display the lost pressure. Power meter in the factory before carefully debugging and test the installation of qualified lead seals. Energy applies to an ambient temperature of -25 fp c to 70 fp c and relative humidity over 85% of the region.
Main technical parameters
Reference voltage 220/380v 3 *
Voltage reference 0.7 u un .2 b -1.
Current specifications 3 * 5 (20) a.
Reference frequency 50hz.
Grading accuracy 2.0
Starting current 0.4% ib.
Voltage power lines "0.8w
Communication transmission distance 5m.
Environmental conditions -25fï+70elative humidity -_85%
Automatic relay depth Data transmission speed
Center frequency Dimensions.
Current specifications 10-40a
Reference frequency 50hz.
Grading accuracy 2.0
Starting current 0.4% ib.
Voltage power lines "2w
Communication transmission distance 5m.
Environmental conditions -10f¦f+50f¦relative humidity
Automatic relay depth
Data transmission speed
Center frequency
Dimensions 166 * 123 * 74.
The main functions and features :
1. Energy measurement ways: total single-phase power meritorious =positive meritorious + reverse meritorious.
2. Right through infrared interface programming meter settings and copied sheet data to support meter reading with shrinking table, table factory default is bar code numbers.
3. After the blackout enter low-power work, in the blackout shows that the current state of total consumption, continuous 24-hour blackout revealed about the closure.
4. Meter procedural device to prevent the failure caused flight function, and after the failure to stop measurement.
Main technical parameters
Reference voltage 220v
Voltage reference 0.7 u un .2 b -1
Current specifications 10-40a
Reference frequency 50hz
Grading accuracy ++ level Starting current 0.4% ib
Voltage power lines "2w
Communication transmission distance 5 meters
Environmental conditions -25fªf+55fª Relative humidity 25f+95+¦
Automatic relay depth Data transmission speed
Center frequency Dimensions 150 * 122 * 56.5
Offer!!! we have immediate stock for 200, 000 units and final price offer based on quantity required. Details specification will be provided upon request.
Specifications:
Model Number: DD28
Accuracy: Class 2.0
Rated Voltage: 220 Volt
Rated Current: 10(30-40)Amp
Starting Current: 0.5%Ib
Rated Frequency: 50 Hz
Constant: 600 rev/kWH
Power Loss( Under no current): 2W
Meter Base: Black Clock Steel
Meter Main Cover: Non Transparent( Black Cover)
Meter Terminal: Short or Extended
Meter Terminal Material: Copper
Voltage Coil Material: Copper
Current Coil Material: Copper
Wire Protection: The Voltage and current coil connecting wire must be insulated with a cover on it
Magnet: Big Size Magnet suitable for 30 A to balance the rotation of the wheel.
Size and Dia. of Voltage and Current Coil: As per IEC design to bear 30 Amp continuous current
Meter Terminal Size: As per IEC norms with continuous current bearing capacity of 30 Ampere
Meter Register: 5 Digits ( 4 Integer , 1 Decimal)
Meter Bearing: Jewell
Quality: Excellent
Serial Number: Each DD 28 must have serial number on its name plate
Design Standard: GB/T15283-2008 & IEC 521
Reference voltage 220v
Voltage reference 0.7 u un .2 b -1
Current specifications 10-40a
Reference frequency 50hz
Grading accuracy ++ level
Starting current 0.4% ib
Voltage power lines 0.8w
Communication transmission distance 5m
Environmental conditions -25f¬f+70f¬
Relative humidity -_85%
Automatic relay depth
Data transmission speed
Center frequency
Dimensions
Single-phase smart watt-hour meter adopts large-scale integrated circuit and dedicated ultra-high precision energy measurement soc chip. The communications capability and reliability of its communication module has reached the level of widespread practical application. It is a modern advanced meter designed and manufactured according to the actual energy consumption conditions with the application of digital sampling technology and smt technology.
Its performance indicators are in line with iec 62053-21: 2003 electricity metering equipment (a.C.) - particular requirements - part 21: static meters for active energy (classes 1 and 2), iec 62053-23: 2003 electricity metering equipment (a.C.) - particular requirements - part 23: static meters for reactive energy (classes 2 and 3) and iec 62052-11: 2003 electricity metering equipment (a.C.)general requires, tests and test conditions - part 11: metering equipment and other standards. The technical requirements of the smart meter can be made to measure the functional requirements; meanwhile, its telecommunication adopts a dedicated data encryption chip to ensure the security of quantity of electricity, tariff and other information
The main functions of this product include metering, display, communication, relay control, data encryption, enabling local and remote meter reading, meter operation monitoring and customer electricity consumption management. This product has the following advantages:
DLMS/COSEM communication protocol, good interconnection and operability;
Communication methods include infrared communication, RS485 communication, GPRS or PLC communication;
Large-capacity data storage capacity, able to record related events such as electricity theft, power supply, switch-opening, and load profile data;
Provide LCD display, support automatic display and key display function;
Built-in relays, supporting multiple control modes, facilitating power safety and power management;
Upgradable software for the meter base layer;
Closed structure design, dustproof, waterproof and resistant to external damage.
