1Overview of Three phase Rail type Prepaid Electric Meter

DTSY6607 seriesThree phase rail type prepaid electricity meterThe table adopts a shielded and sealed structure, and uses a single-chip microcontroller for data acquisition, processing, and storage. Has good resistance to electromagnetic interference, low power consumption, high accuracy, high overload, and long lifespan. Safety complies with all technical requirements for electronic three-phase four wire prepaid electricity meters in GB/T17215-2002, GB/T18460.3-2001, and DL/T645-1997 standards.

Main features: Application of computer management, purchasing electricity first and then using it; Can provide load limiting control according to user requirements, with one meter and one card(One table with multiple cards)Dedicated card, no power loss after card loss, can be used after card replacement; Electric cards can transmit data bidirectionally; Can automatically notify Jing users of electricity purchase and overload; When the battery level is zero, the power will automatically trip and cut off; Has certain anti-theft software design, etc.

IISpecifications and main technical parameters

2.1 Specifications

2.2 Basic Error:

Ib is the rated current, Imax is the maximum current

2.3 Accuracy level: Level 1, Level 2.

2.4 Reference frequency: 50Hz, 60Hz.

2.5 Accuracy: Long term work does not require calibration.

2.6 Environmental conditions:

Basic operating temperature:- 20℃～+55℃

Extreme working temperature:- 25℃～+60℃

Relative humidity: ≤ 85%

There should be no corrosive gases in the surrounding air, and dust, salt spray, condensation, etc. should be avoided.

IIIRail type three-phase prepaid energy meterStructure and working principle

The energy metering part of the electricity meter adopts a large-scale dedicated metering chip for control and management. The part adopts strong anti-interference and ultra-low power consumption microprocessor (CPU).

3.1 Working principle of electric energy metering section

The electric energy metering part obtains voltage samples from a voltage divider, performs current sampling through a high stability shunt, obtains a voltage current product signal through a multiplier, and then generates a counting pulse with frequency proportional to the product of voltage and current through frequency conversion.

3.2 Working principle of data processing and control section

Electric energy metering pulses are sent through a photoelectric couplerCPUProcess and store after computation. By using a computer power sales management system and an RF card reader/writer, a certain amount of power and monitoring requirements are written into the RF card input table of the microprocessor systemCPUAfter calculation, provide display, alarm, cut-off status signals, etc.

4Rail type three-phase prepaid energy meterInstallation and use

4.1 The electricity meter shall be inspected and qualified before leaving the factory, and sealed with a lead seal before installation and use. If there is no lead seal or it has been stored for too long, relevant departments should be asked to re verify and seal it before installation and use.

4.2 The electricity meter should be installed vertically in a dry and ventilated place, and the base plate for installing the meter should be fixed on a sturdy, fire-resistant, and vibration resistant wall, with a height of about 1.8 meters.

4.3 Connect the wires according to the wiring diagram and tighten the wiring screws. (Suggestion: Tin plating should be applied to the wires connected to the electricity meter.)

Before opening an account, the meter must be reset to its initial state using a reset card

(----), then apply the RFPlace the card on top of the reader and operate the computer simultaneously to encrypt user code, pre ordered power, limited power, etcRF card, make account opening card.

4.5 When selling electricity, use radio frequencyPlace the card on top of the reader and operate the computer simultaneously to encrypt user code, pre ordered power, limited power, etcRF card, generate power purchase card.

4.6 When using, place the RF card on the surface of the electrical meter label. If there is any

If the card is activated, the electricity meter will automatically read the data into the meter. The reading and writing of data is a process, and users must wait until they see the total remaining power before they can safely leave. During the process, the screen will display the amount of electricity purchased, the remaining amount of electricity, and the total amount of electricity used. Then return the card and store it properlyradio frequencyCard.

The maximum storage capacity of the 4.7 meter is 99999.9Degree, the maximum displayed value is 99999.9 degrees. When the purchased electricity and the remaining electricity in the meter exceed 99999.9 degrees, an Err09 warning will be displayedradio frequencyThe remaining power on the card will not be replenished and will continue to be saved for future use.

During the operation of the electricity meter, if the display screen flashes an alarm, it will warn the user that the power is too low and they need to purchase electricity.

4.9 When the user is overloaded with electricity, the screen will display an overload alarm and automatically restore power after three minutes of power-off protection. If the user responds by swiping their card, power can be restored immediately.

4.10 User ownedradio frequencyCards cannot be interchanged, one meter corresponds to one cardradio frequencyCard, if lost, you should go to the power supply department (sales office) to get a replacement card.

4.11 When the remaining power is zero, the electricity meter will trip and cut off the power. At this timeradio frequencyBy swiping the card once on the electricity meter, you can overdraw the power supply once. The overdrawn amount is set by the power supply departmentDisplay (overdraft, * * -00.0), * * indicates that the power supply department has set the effective overdraft capacity for the user, with a maximum capacity of 99KW. h- 00.0 represents the actual overdrawn electricity consumption of the user. Users should purchase electricity immediately, and there will be a shortage of electricity

When the remaining time is zero, power cannot be supplied.

4.12 Error Display:

Err1radio frequencyWrong card model Err2radio frequencyThe card is broken

Err3radio frequencyCard password incorrect Err4 is not a system card

Err5radio frequencyCard type incorrect Err6 system password incorrect

Err7Wrong region number Err8User ID incorrect

Err9 Overflowing power supply