1.Product Overview
The DDS3666 type Single-phase Local Rate-control Smart Energy Meter is made in advanced microelectronic technology and SMT process, whose performance index is in conformity with the technical requirements in Q/GDW364-2009 Technical Specification for Single-phase Smart Watt-hour Meter. It’s a meter with high accuracy, prepayment function, good stability and it’s an ideal product to reform the power system and improve the management level of power loss.
2.Functions
Energy | combined active , forward active, reverse active |
Timing frozen energy, instantaneous frozen energy | |
Appointed frozen energy | |
Daily frozen energy, hourly frozen energy | |
Store the data in last 12 months’ power loss. | |
Prepayment | Embedded ESAM module, CPU card |
pre-alarm and switch on/off functions | |
Event recording | Time calibration record |
Program and reset record | |
Cover opening record | |
Switch on/off record | |
Power on/off record, power fail record | |
Communication and pulse | RS485 communication, infrared communication |
LED pulse, electric pulse output | |
Clock signal output |
3.Main Technical Data
Reference voltage | 220V |
Current specifications | 1.5(6)A,1.5(9)A,5(20)A,5(30)A,5(40)A,10(40)A,10(50)A, 10(60)A,15(60)A,20(80)A |
Reference frequency | 50Hz |
Accuracy class | Class 2.0 |
Starting current | 0.004 Ib 0.002Ib(CT) |
Ambient conditions | Rated working temperature：-25℃~+60℃ Limit working temperature：-40℃~+70℃ Storage and transportation temperature:-40℃~+70℃ |
Maximum relative humidity | Annually average：75% monthly average：95% |
Normal working voltage range | 0.7Un~1.2Un |
Limit operating voltage | Forcing 1.9Un voltage to the meter voltage circuit for 4 hours, the meter is not damaged and can work normally after the test. |
Maximum current | Running one hour under 1.2Imax, the meter is not damaged. |
Clock accuracy | In reference temperature(23℃）, the accuracy of the clock is ≤±0.5s/d |
Power loss | When not in the communication state, voltage circuit active power rate≤1.5W，apparent power rate≤10VA; less than 3W and 12VA in the communication state. |
Lithium battery | Environmentally friendly lithium battery, the capacity of which is≥1.2Ah, keeping the programs in the meter and the clock running for more than 5 years after power-off and the service life is more than 10 years. |
Antistatic ability | >15kV |
Design service life | ≥10 years |
Weight | 0.5kg |
Remark | If the parameters of different types are different from the specifications above then take the specific type as priority. |