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DSSD6111 Three phase Three wire Smart Meter

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Product details

Brief introduction

1.1 Overview

The DTSD/DSSD6111 electronic three-phase intelligent energy meter is an instrument designed and manufactured using integrated circuits, digital sampling processing technology, and SMT technology, based on the actual electricity consumption of industrial users.

The performance indicators of this meter comply with the technical requirements of GB/T 17215.323-2008 "Special Requirements for AC Measuring Equipment Part 23: Static Reactive Energy Meters (Level 2 and Level 3)", GB/T 17215.321-2008 "Special Requirements for AC Measuring Equipment Part 21: Static Active Energy Meters (Level 1 and Level 2)", GB/T 17215.301-2007 "Special Requirements for Multifunctional Energy Meters", DL/T 614-2007 "Multifunctional Energy Meters", Q/GDW 362-2009 "Technical Specification for Level 1 Three phase Cost Control Intelligent Energy Meters" and Q/GDW 363-2009 "Technical Specification for Level 1 Three phase Intelligent Energy Meters" for multifunctional energy meters. Its communication complies with the requirements of DL/T 645-2007 "Multifunctional Table Communication Protocol".

This meter can measure active and reactive power and demand in various directions, and measure active and reactive power in phases. It has dual RS485 and modulated infrared communication, buttons, and infrared power outage wake-up meter reading functions. It has stable performance, high accuracy, and easy operation.

1.2 Working principle

A three-phase intelligent energy meter is composed of a measuring unit and a data processing unit. In addition to measuring active (reactive) energy, it also has two or more functions such as time-sharing and measuring demand, and can display, store, and output data.

The working principle of DTSD6111 electronic three-phase intelligent energy meter is shown in Figure 1:

Figure 1 Working principle block diagram of three-phase intelligent energy meter

When the electric energy meter is working, the voltage and current are sampled separately by the sampling circuit and sent to the amplification circuit for buffering and amplification. Then, they are converted into digital signals by the metering chip, and the high-performance microcontroller is responsible for analyzing and processing the data. Due to the use of high-precision measurement chips, the measurement chip completes high-speed front-end sampling on its own, and the measurement algorithm is stable. The microcontroller only needs to manage and control the working status of the measurement chip. The microcontroller in the figure is also used for time-sharing billing and processing various input and output data, and completes time-sharing active and reactive energy metering and maximum demand metering functions according to pre-set time periods. It displays various data as needed, communicates and transmits through infrared or 485 interfaces, monitors operating parameters, records and stores various data.

1.3 Technical indicators

accuracy class Active power level 0.2S, 0.5S, 1 reactive power level 2

Rated frequency 50Hz

starting current Merit 0.001I_n(0.2S level, 0.5S level); 0.002I_n(Direct entry 0.004)I_n）(Level 1.0)

Reactive power 0.003I_n(Straight in 0.005)I_n）(Level 2.0)

shunt running Designed with anti creep logic

External dimensions 265mm´170mm´75mm

weight About 2.5kg

Electrical parameters

Operating Voltage	0.8U_n～1.2U_n
Extreme working voltage	0.7U_n～1.3U_n
Voltage line power consumption	≤1.5Wand5 VA(Auxiliary power supply ≤10VA）
Power consumption of current circuit	＜2 VA
Clock battery voltage	3.6V
Power outage meter reading battery voltage	3.0V

Multiple rate work parameters

Clock accuracy(Daily error)	≤0.5s/d(Temperature -30 ℃~+65 ℃)
Clock battery capacity	≥1200mAh
Data retention time after power outage	≥10year

Weather

Normal operating temperature	-20℃～+60℃
working temperature limit	-30℃～+70℃
Storage and transportation temperature	-40℃～+70℃
Storage and working humidity	≤85%RH

2、 Appearance description and installation

2.1 2.2 Installation and wiring of electric meters

1) The energy meter should be installed in a ventilated and dry indoor area to ensure safe and reliable installation and use. In areas with pollution or potential damage to the energy meter, it should be protected by a protective cabinet.

2) Installation size

The upper part of the electric energy meter has hook screw holes, and the lower part has 2 installation holes, which are fixed with M4 × 15 screws. Fix on a sturdy, fire-resistant, and non vibrating object according to the installation dimensions shown in the following figure.

Installation diagram of three-phase intelligent energy meter

4) Terminal wiring diagram

1. Functional Terminal Wiring Diagram

2. Power terminal wiring diagram

3、 Basic functions

3.1 Energy metering function

1) Content of electric energy metering records

Namecall	Data identification	specific content
Active combined electrical energy*Note 1	0000xxxx	Current, previous 1 settlement date~previous 12 settlement date**Note 3*Total and various rates of electricity consumption
Positive active energy	0001xxxx	Current, previous settlement date~previous settlement date total, various rates of electricity consumption
Reverse active energy	0002xxxx	Current, previous settlement date~previous settlement date total, various rates of electricity consumption
Combined reactive power 1 electric energy*Note 2	0003xxxx	Current, previous settlement date~previous settlement date total, various rates of electricity consumption
Combination reactive power 2 electric energy*Note 2	0004xxxx	Current, previous settlement date~previous settlement date total, various rates of electricity consumption
Reactive energy in the first quadrant	0005xxxx	Current, previous settlement date~previous settlement date total, various rates of electricity consumption
Reactive energy in the second quadrant	0006xxxx	Current, previous settlement date~previous settlement date total, various rates of electricity consumption
Reactive energy in the third quadrant	0007xxxx	Current, previous settlement date~previous settlement date total, various rates of electricity consumption
Reactive energy in the fourth quadrant	0008xxxx	Current, previous settlement date~previous settlement date total, various rates of electricity consumption
Positive active energy in phase separation	00xx00xx	Total electricity consumption from current and previous settlement date to previous settlement date
Reverse phase active power		Total electricity consumption from current and previous settlement date to previous settlement date
Phase separated combined reactive power 1 electric energy		Total electricity consumption from current and previous settlement date to previous settlement date
Phase separated combined reactive power 2 electric energy		Total electricity consumption from current and previous settlement date to previous settlement date

Note 1: The measurement method of positive active energy depends on the content of the "active combination method characteristic word".

Note 2: The measurement method of positive and negative reactive energy depends on the content of the "characteristic words of reactive power combination mode 1 and 2".

Note 3: The three settlement days can only be set as legal time or 99 minutes on the 99th day. If set as 99 minutes on the 99th day, the settlement will not be calculated.

Characteristic words of active combination method

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

reserve

Reverse active power

0No reduction, 1 reduction)

Reverse active power

0No, add 1

Positive merit

0No reduction, 1 reduction)

Positive merit

0No, add 1

Characteristics of reactive power combination methods 1 and 2

Bit7

Bit6

Bit5

Bit4

Bit3

Bit2

Bit1

Bit0

IVquadrant

0No reduction, 1 reduction)

IVquadrant

0No, add 1

IIIquadrant

0No reduction, 1 reduction)

IIIquadrant

0No, add 1

IIquadrant

0No reduction, 1 reduction)

IIquadrant

0No, add 1

Iquadrant

0No reduction, 1 reduction)

Iquadrant

0No, add 1

3.2 Maximum demand recording function

Maximum demandThe maximum average power measured during the demand cycle within the specified time interval.

demand intervalContinuous equal time intervals for measuring average power. The maximum demand cycle can be chosen from 5/10/15/30/60 minutes.

sliding window timeSequentially measure the time when the maximum demand is less than the demand cycle, and the slip time can be selected between 1/2/3/5 minutes.

Record the maximum demand and occurrence time

name call	Data identification	specific content
Maximum demand for positive active power and its occurrence time	0101xxxx	Currently, on1Settlement Date~upper12The total and maximum demand for each rate on the settlement date, as well as their occurrence time
Maximum reverse active power demand and its occurrence time	0102xxxx	Currently, on1Settlement Date~upper12The total and maximum demand for each rate on the settlement date, as well as their occurrence time
Combined reactive power1Maximum demand and its occurrence time	010300xx	Currently, on1Settlement Date~upper12The total maximum demand on the settlement date and its occurrence time
Combined reactive power2Maximum demand and its occurrence time	010400xx	Currently, on1Settlement Date~upper12The total maximum demand on the settlement date and its occurrence time
Maximum reactive power demand and its occurrence time in four quadrants	01xx00xx	Currently, on1Settlement Date~upper12The total maximum demand on the settlement date and its occurrence time

Note: The maximum demand recorded data is unsigned and is based on the instantaneous power direction. The maximum demand shall be settled on the first settlement day of each month, and not on the second or third settlement days. The corresponding data shall be filled in with 0xFF.

3.3 Multiple rate function

Number of time zones per yearThe time zone in which the energy meter can operate. If the number of annual time zones is less than the programmed annual time zones, the energy meter will only operate in the first few time zones (e.g. if the number of annual time zones is 2, the first two time zones will be operated). If the annual time zone number is set to 0, the energy meter will only operate in the first time zone (regardless of how many time zones were programmed). The number of time zones per year shall not exceed 14.

Number of daily time slot tables：The number of the day and time period during which the electric energy meter can operate. If the number of daily time slot meters is set to 4, the 5th to 8th day time slot meters of the electricity meter will be invalid. Even if the daily time slot meter number of a certain time zone is set to 5, the time zone will operate according to the time slot of the 4th day time slot meter, and not according to the time slot of the 5th day time slot meter. If the number of daily time slots is set to 0, the electricity meter will only operate on the first day's time slot. The number of daily time slots shall not exceed 8.

Number of daily time periods：The daily operating time period of the electric energy meter. Not exceeding 14. If the number of daily time periods is set to 4, the time meters for the 5th to 14th time periods of each daily time period will be considered invalid, and only the first 4 time periods will be valid. If set to 0, the meter will only operate for the first day period.

Daily time slot table number：When programming, it is used to indicate the time period on which the electricity meter is running, represented by 1, 2, 3, 4, 5, 6, 7, and 8. If the daily time slot meter number of the time zone is set to 0, the electricity meter is fixed as the first day time slot meter.

Number of rates：The rate number that can be switched by the electric energy meter. Its value does not exceed 4. If set to 3, only rate 1, rate 2, rate 3 are valid, and so on. If it is 0, the meter will only operate at a rate of 1 regardless of the time of day.

Rate number：When programming, it is used to indicate the operating rate of the electricity meter, represented by 1, 2, 3, 4. Usually corresponding to peak rates, peak rates, average rates, and valley rates.

Number of public holidays：The number of days in a year that an energy meter can operate on public holidays. If 0, it means that the selection of public holidays is invalid. Its value does not exceed 10.

Public holidays：Generally refers to national holidays, such as1the moon1Day5the moon1Days, Spring Festival, etc. can be set by users.

Table number of public holiday dates and time periods：Set the dates of public holidays throughout the year and use different time slot table numbers for different public holidays.

Weekends and weekends：Generally refers to the designated rest days within a week. Set the working days and rest days of each week based on the characteristic characters of weekends.

Time slot table number used for weekends：Set the daily schedule number for rest days as needed.

Multi time zone programming instructions：This meter can be programmed with 14 time zones.

Note: The above parameters can be set through a handheld computer or PC, please refer to Appendix B.

Here is an example to illustrate:

Example:A certain region divides a year into two time zones. The first time zone starts from January 1st and uses the 1st day time slot table, while the second time zone starts from September 1st and uses the 2nd day time slot table. The first day's time slot is: the starting time of the first time slot is 7:00, and the rate is 2. The starting time of the second time slot is 21:00, and the rate is 3; The second day's time slot is: the first time slot starts at 8:00 with a rate of 2, and the second time slot starts at 22:00 with a rate of 3. Assuming that May 1st and October 1st are public holidays. The time slots for public holidays are: the first time slot starts at 9:00 with a rate of 1, the second time slot starts at 21:00 with a rate of 2, and the third time slot starts at 5:00 with a rate of 3. The specific settings should be as follows:

Name	Data identification	Setting data	Remarks
Number of time zones per year	04000201	02	Set 2 time zones for each year
Number of daily time slot tables	04000202	08	There are currently 8 time slot allocation tables. If a user wants to set the time slot table number corresponding to a public holiday to 5, then this item must be set to 5 for the 5th day time slot table to be valid.
Number of daily time periods	04000203	02	The daily switchable time slot is 2
Number of rates	04000204	04	Due to the current use of flat rates, this data must be ≥ 3.
Number of public holidays	04000205	10	Since there are currently two holidays, this data must be ≥ 2. When it is not greater than 2, the meter will determine that the public holidays below the second public holiday are 0, and then the public holiday is invalid.
Starting date and time slot table number for the first time zone	04010000	010101	The starting date for the first time zone is January 1st, as shown in Table 1.
Starting date and time slot table number for the second time zone	04010000	090102	The starting date for the second time zone is September 1st, as shown in Table 2.
Day 1 Time Period Table Starting Time and Rate Number for Day 1 Time Period	04010001	070002	The starting time of the first time slot on the first day schedule is 7:00, and the peak rate is activated for this time slot.
Starting time and rate number of the second time slot in the first day schedule	04010001	210003	The starting time of the second time slot on the first day's schedule is 21:00, and the flat rate is used for this time slot.
Starting time and rate number of the 3rd time slot in the 1st day schedule	04010001	210003	The third and subsequent periods must be set to be the same as the second period, so that the electricity meter considers the third and subsequent periods invalid.
Starting time and rate number of the first time slot in the second day schedule	04010002	080002	The starting time of the first time slot on the second day's schedule is 8:00, and the peak rate is activated for this time slot.
Day 2 Time Schedule Starting Time and Rate Number for Period 2	04010002	220003	The starting time of the second time slot on the second day schedule is 22:00, and the flat rate is used for this time slot.
Starting time and rate number of the 3rd time slot in the 2nd day schedule	04010002	220003	The third and subsequent periods must be set to be the same as the second period, so that the electricity meter considers the third and subsequent periods invalid.
The first public holiday date and time slot table number	04030001	08050103	The date representing the first public holiday is May 1, 2008, and the start date is listed in Table 3.
2nd Public Holiday Date and Time Period Table Number	04030002	08100103	The date representing the first public holiday is October 1, 2008, and the start date is listed in Table 3.
Starting time and rate number of the first time slot in the 3rd day schedule	04010003	090001	The starting time of the first time slot on the third day schedule is 9:00, and the peak rate is activated for this time slot.
Starting time and rate number of the 2nd time slot in the 3rd day schedule	04010003	210002	The starting time of the 2nd time slot on the 3rd day is 21:00, and the peak rate is activated for this time slot.
Time Schedule for Day 3 Starting Time and Rate Number	04010003	050003	The starting time of the third time slot on the third day schedule is 5:00, and the flat rate is used for this time slot.
Starting time and rate number of the 4th time slot in the 3rd day schedule	04010003	050003	The fourth and subsequent periods must be set to be the same as the third period, so that the electricity meter considers the fourth and subsequent periods invalid.
Time slot table number used for weekends	04000801	00	At present, weekends are not enabled. If you want to enable them, you must first set the weekend feature word and select one of the 1st to 8th day period tables. As long as any day from Monday to Sunday is selected as a rest day, the daily period table set by that data will be used.

The electric meter has2Time zone table and2Time slot table function

The electricity meter has 2 sets of time zone meters and 2 sets of daily time period meters, as well as corresponding switching times for 2 sets of time zone meters and 2 sets of daily time period meters. By setting the switching time in advance, it is possible to achieve unified time conversion between time period tables or time zone tables in use, avoiding customer disputes caused by inconsistent switching times. For example, when the user's time zone remains unchanged and needs to adjust the rate period, they can first read the meter's operating status 3, learn from bit0 which set of daily time period meters the meter is currently using, then program the unused daily time period meters, and set the switching time of the daily time period meters. This completes the entire modification operation, and when the meter clock reaches the switching time, the two sets of daily time period meters can be automatically swapped.

Switching date between 2 sets of time zone meters and 2 sets of daily time zone meters: When the current time on the meter is after this date, the meter will automatically switch to another time zone, and the switching date will automatically return to 00.00, 00.00, and 00.00. When the switching date is set to 99.999.99.99.99.99, it will switch to the first set of time zone tables and the first set of daily time period tables.

auxiliary word for ordinal numbers2Time zone table and daily time zone table settings:The setting method is the same as the above time period table setting content.

Note: When setting another time period, it is best to first set the content of the other time period table, then check whether the current time of the electricity meter is correct (if not, please calibrate), and finally set the switching date of the two time period tables and the daily time period table (ensure that the date is after the current date, otherwise the electricity meter will switch immediately).

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