Overview:

DDZY3666-Z single-phase charged-controlled intelligent electricity meter (hereinafter referred to as "smart energy meter") 

is manufactured by large-scale integrated circuit, digital sampling processing technology and SMT process. 

The whole machine design adopts a variety of anti-interference technology. 

It is used for time-sharing measurement of single-phase AC active power with rated frequency of 50Hz,

 which can better balance the power grid load.

Instrument adopts Chinese liquid crystal display, with positive active energy, reverse active energy metering function,

 can store its data, and can set the combination of active power accordingly. Active electric energy accumulates and stores total,

 peak, peak, flat and valley electric energy respectively according to corresponding time periods. With the function of remote charge control, 

electricity calculation is completed in the remote electricity selling system. With event recording function. 

With two sets of ladder electricity price scheme, it can be automatically converted at the agreed time or reach the agreed level of electricity consumption.

 And has infrared and 485 communication, in the state of power failure, can be awakened by the key or infrared energy meter.

The phenotype performance index conforms to Q/GDW 1364-2013 "Technical Specification for Single-phase Smart electricity Meters", 

Q/GDW 1354-2013 "Functional Specification for Smart electricity Meters", Q/GDW 1355-2013 "Type Specification for single-phase smart electricity meters

" and Q/GDW 1365-2013 "Intelligent electricity meters Information Exchange Security Certification Technical Specification", 

GB/T 15284-2002 "Multi-rate electricity meters Special requirements", 

GB/T 17215.321-2008 "AC measuring equipment special requirements

 Part 21: Static active power meter (Grade 1 and 2), GB/T 17215.211-2006 "AC measuring equipment general requirements,

tests and test conditions Part 11: Measuring Equipment "and DL/T 614-2007" Multifunctional Electricity meter ",

 its communication conforms to DL/T 645-2007 "Multifunctional Electricity meter Communication Protocol".

Main functions of this product- smart energy meter:

2.1 Measurement Function

2.1.1 With positive active energy and reverse active energy, the electric energy can be measured, its data can be stored, 

and the combined active power can be set accordingly.

2.1.2 With time-sharing metering function, the active power energy accumulates and stores total, peak, peak,

 flat and valley power energy respectively according to corresponding time periods.

2.1.3 Total electric energy and electric energy at various rates that can be stored for at least 12 months;

 The data storage boundary time is 24 o 'clock of the end of the month, or the hour hour from the first to the 28th of each month.

2.2 Rate and time slot functions

The electricity meter can measure the accumulated active energy at peak, peak, flat and valley rates in 12 periods a day at most.

 The time period and rate can be set by the manager according to the needs, with a minimum interval of 15 minutes.

 2.3 Remote fee control function

Electricity rate calculation is completed in the remote electricity selling system, the table does not store,

 display information related to electricity rate and electricity price. 

The electricity meter needs to pass strict password verification and security authentication when it receives switch on,

 allow switch off and ESAM data reading instructions issued by remote power selling system.

Under the condition of ensuring safety, the electricity parameters in the electricity meter can be set through the virtual medium.

2.4 Measurement and monitoring functions

Can measure, record, display the current meter voltage, current (including neutral line current), power, power factors and other operating parameters.

Under the condition of ensuring safety, the electricity parameters in the electricity meter can be set through the virtual medium.

2.5 Step power function

Within a month's electricity settlement cycle, divide the monthly total electricity consumption into multiple stages (at most 4) according to the ladder.

2.6 Clearing day transfer function

The monthly electricity settlement day and hour can be set by the manager according to the needs, and each rate and

 total accumulated active electricity of the month can be settled on the set electricity settlement day and hour.

2.7 Event Record

2.7.1 Permanently record the occurrence time of the zero clearing event of the electricity meter 

and the electrical energy data at the zero clearing time.

2.7.2 Record the total number of programming times, the time of the last 10 programming times,

 the operator's code and the data identification of programming items.

2.7.3 Record the total times of time calibration (excluding broadcast time calibration), 

the time of the last 10 times of time calibration, and the operator code.

2.7.4 Record the total number of power failures and the occurrence and end time of the last 10 power failures.

2.7.5 Record the last 10 remote control pulling events and the last 10 remote control closing events, 

and record the occurrence time and electrical energy of pulling and closing events.

2.7.6 Record the total number of opening and closing events of the last 10 opening and closing events.

2.8 Data Transfer Function

It can store the total electric energy of 12 settlement days and the electric energy data of each rate.

2.9 Freezing Function

2.9.1 Timing freezing: Freezing electrical energy data at the agreed time and interval; Store each frozen amount at least 12 times.

2.9.2 Instantaneous freezing: Under abnormal circumstances, freeze the current calendar, time, 

all electrical energy and important measurement data; Instantaneous freezing quantity saves the data of the last 3 times.

2.9.3 Agreed freezing: When the new and old two sets of rate/time period conversion, 

ladder electricity price conversion or the power company considers that there is special need,

 the electric energy and other important data at the conversion time shall be frozen and the last two frozen data shall be saved.

2.9.4 Frozen on a Day: Stores the power generated at 00:00 every day for 60 days of data storage.

2.9.5 Freezing at the hour: Storage of total active power at the hour or half hour, which can store 96 data

2.10 Load control

When the user load exceeds the power limit load for 1 consecutive minute, the electricity meter will alarm.

2.11 Timing function

It adopts the built-in hardware clock circuit with temperature compensation function, and has the functions of calendar, 

timing and leap year automatic conversion. The output frequency of the internal clock terminal is 1Hz, 

and the clock accuracy is ≤±1s/d in the temperature range of -25℃ ~ +60℃; At the reference temperature (23℃), the clock accuracy is less than ±0.5s/d.

The only time range accepted by the watt-hour meter shall not be greater than 5min.

 No programming key and communication password are required for broadcast calibration. 

Proofreading is only allowed once a day, and should be avoided within 5min before and after

 the meter is frozen or the settlement data transfer operation is performed.

2.12 Data protection

Data protection adopts all-solid-state integrated circuit technology, without the use of batteries,

 data can be stored for more than 10 years after power off.

2.13 Infrared /RS485 communication function

The physical layer of communication channels is independent,

 and the damage of any communication channel does not affect the normal operation of other channels.

The power supply department can read the data in the meter through the infrared /RS485 communication interface, 

and the communication follows the DL/T 645-2007 protocol and its record files. 

The rate table and time table scheme can be modified through the infrared and RS485 communication interface.

The data transmission reliability of carrier communication meets the requirements of DL/T 698-1999.