Product parameters

Product Name: Weisheng DSSD331-9A Three phase Three wire Harmonic Energy Meter

Scope of application: Suitable for energy metering at gateway metering points that require high precision, stability, and reliability, mainly including power stations, power plants, and large users

Main functions: time-sharing metering function, can set 6 types of data to record load curves, dual backup data storage, can wake up and display through buttons after power outage, records various frozen data

Accuracy level: Active power: 0.2S level; Reactive power: 0.5S level, level 1, level 2

Reference voltage: 3 × 100V

Current specifications: 1.5 (6) A, 0.3 (1.2) A, 1 (2) A, 1 (6) A; 1(10)A，5(6)A; 5(10)A

Communication protocol: DL/T645-1997 protocol; DL/T645-2007 protocol; Modbus protocol

Communication interface: 2 standard RS485 channels, 1 adsorption infrared/far-infrared interface, channels are independent of each other

Dimensions: Length x Width x Thickness: 291mm x 175.5mm x 85.5mm　

major function

Measurement function

Measurable active, reactive, forward active, reverse active, forward reactive, reverse reactive, four quadrant reactive and other electrical quantities.

Display function

Screen, backlight, wide-angle LCD display, capable of displaying battery data for the past 3 months.

Anti electricity theft function

It has the function of recording events such as lid opening, voltage loss, current loss, phase failure, current imbalance, power failure, reset, reverse phase sequence, and reverse power being included in forward power, to prevent users from illegally removing or cutting off voltage and current connections.

Load curve function

Six types of data recording load curves can be set, with a capacity of up to 20M bytes, stored in mainstream file formats for easy copying and analysis by users, and supporting high-speed Ethernet downloads.

Time division multiple rate function

It has the function of dividing peak, off peak, off peak, and off peak time periods into multiple rates, and can also choose to divide peak, off peak, and off peak time periods to set 8 rates; Positive active power and reactive power in four quadrants can be measured in a time-sharing manner.

Parameter monitoring

It can monitor real-time values of voltage and current in each phase, as well as real-time parameters such as active power, reactive power, power factor, phase angle, and phase of the three-phase total and A, B, and C phases.

Data storage

Can store historical electricity data for the past 13 months.

Communication function

It can be read through button display, infrared handheld device, and 2RS485 communication port. With the meter reading system, it can read various electricity data of the meter, supporting DL/T645-1997 and DL/T645-2007 multifunctional energy meter communication protocols, as well as Modbus protocol.

Maximum measurement function

The maximum demand and occurrence time of bidirectional active power, bidirectional reactive power, and four quadrant reactive power can be measured.

Wiring method

Product Function Display

Packaging Content

Weisheng DSSD331-9A Three phase Three wire Harmonic Energy Meter

Product User Manual (one copy per box)

• Product Warranty Form