Product parameters

Product Name: Weisheng DSSY331-MB3 Three phase Three wire Prepaid Energy Meter

Scope of application: Industrial and mining enterprises, commercial users who require IC prepaid metering and billing places

Main functions: time-sharing metering of active and reactive power in both directions, maximum demand for reactive power, LCD display with dual RS485 communication for remote meter reading

Accuracy level: Active power: 0.5S level; Reactive power: Level 2

Communication protocol: DL/T645-1997

Reference voltage: 3 × 100V

Reference current: 3 × 1.5 (6) A

Whole machine power consumption:<1.5W, 6VA

Dimensions: Length x Width x Thickness: 225mm x 175mm x 85mm　

Current specifications and transformer configuration

1.5 (6) A annotation: External 5A current output transformer

5 (6) A annotation: External 5A current output transformer

0.3 (1.2) A annotation: External 1A current output transformer

1 (2) A annotation: External 1A current output transformer

1 (10) A note: External 5A current output transformer * Note: Some places in the southern grid area use

Voltage specifications and meter pulse constant

3*100V

1.5(6)A20000 imp/kw

5(6)A20000 imp/kw

1(10)A20000 imp/kw

0.3(1.2)A100000 imp/kw

1(2)A100000 imp/kw

*Note: imp/kw represents the pulse constant, which represents the number of times the pulse indicator light flashes per kilowatt hour of electricity measured by the meter

Functional classification

• Energy metering function: metering positive and negative active power, four phase limited reactive power, and phase separated power; The maximum demand and occurrence time of bidirectional active power, bidirectional reactive power, and four quadrant reactive power can be measured.

• Parameter monitoring function: measure instantaneous quantities such as phase voltage, current, frequency, active power, and power factor.

• Time sharing metering function: Time sharing metering of forward and reverse active power, four quadrant reactive power, combination 1, and combination 2 reactive power. It has the function of compounding rates for peak, off peak, off peak, and off peak periods, and can also be selected for peak, off peak, and off peak periods.

Data storage: It can store monthly electricity data for 13 months, including total, peak, off peak, average, and valley electricity data for each month.

• Load curve function: It has 6 types of load curve data recording functions, which can freely select and draw curve graphs from voltage, current, frequency, power and power direction, power factor, total reactive power, four quadrant reactive power, current demand and other data.

• Display function: Large screen, wide-angle LCD display, with rich status indicators and Chinese character prompts, with backlight; It can display the monthly electricity consumption data for the past three months.

Anti electricity theft function: It has event recording functions such as lid opening, voltage loss, current loss, phase failure, current imbalance, power failure, reset, reverse phase sequence, and reverse electricity being included in forward electricity, to prevent users from illegally removing or cutting off voltage and current wiring.

Data output and communication functions: Meter reading can be achieved through button display, infrared handheld device, and RS485 communication interface. With the meter reading system, various electricity data of the meter can be read, supporting DL/T645-1997 multifunctional energy meter communication protocol.

Prepaid function: I Power outage control, power outage control fault alarm. Ⅱ. Alarm when the remaining electricity bill is insufficient. Ⅲ. The configurable electricity credit function ensures uninterrupted electricity usage for users in emergency situations. Ⅳ. Excessive power alarm and limit on the number of excessive power alarms. Ⅴ. Rich records of power purchase events ensure traceability of all operations. Ⅵ. Rich functional cards to complete functions such as electricity purchase, parameter setting, meter reading, relay detection, etc.

Connection　

Product Function Diagram

Anti theft function

If a user illegally removes or cuts off voltage or current connections, the electricity meter will issue an alarm signal until the user resumes normal electricity use.

• Open lid recording function

Prevent illegal changes to the circuit.

Lead sealed anti-theft function

Lead seals cannot be restored after one-time use.

Conventional display content of LCD screen

This month's positive (negative) active (reactive) power consumption. {Support pressing the "up" and "down" buttons to view the details of last month's battery life}

This month's forward (reverse) active (reactive) peak, peak, flat, and valley electricity quantities. {Support pressing the "up" and "down" buttons to view the details of last month's battery life}

• Display of total, A, and C electricity parameters: active power, reactive power, power factor, phase position, voltage, current, electricity demand, loss of current, loss of voltage, power, reverse phase sequence, etc.

Prepaid, remaining power, insufficient electricity alarm prompt, trip function

Meter reading method

• Display meter reading: By pressing the buttons on the meter, the monthly total electricity, voltage, current, power factor, and other data of the meter can be queried on the LCD screen.

Power outage meter reading: Equipped with a power outage meter reading battery to provide the energy required for the operation of the energy meter, in order to maintain the relevant data in the meter.

Communication meter reading: Through RS485 communication port meter reading and handheld infrared meter reading machine, combined with meter reading system, various electricity data of the meter can be read. And supports DL/T645-1997 multifunctional energy meter communication protocol.

Packaging content

Weisheng DSSY331-MB3 Three phase Prepaid Energy Meter

Product User Manual (one copy per box)

• Product Warranty Form