Views: 0 Author: Site Editor Publish Time: 2022-01-06 Origin: Site
The DDZY3666 type Single-phase Local Rate-control Smart Watt-hour 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.
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.
Embedded ESAM module, CPU card
pre-alarm and switch on/off functions
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
0.004 Ib 0.002Ib(CT)
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
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.
Running one hour under 1.2Imax, the meter is not damaged.
In reference temperature(23℃）, the accuracy of the clock is ≤±0.5s/d
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.
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.
Design service life
If the parameters of different types are different from the specifications above then take the specific type as priority.