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Kwh Meter 3 Phase

Kwh Meter 3 Phase

DSSU666 series three phase three wire electronic energy meter (DIN Rail) Summary : D□SU666 series electronic energy meter is designed for power monitoring and energy measurement such as power system, communication industry, construction industry, etc. to be a new generation of programmable...

Product Details

DSSU666 series three phase three wire electronic energy meter (DIN Rail)

Summary

D□SU666 series electronic energy meter is designed for power monitoring and energy measurement such as power system, communication industry, construction industry, etc. to be a new generation of programmable intelligent instrument, integrated with measurement and communication function, mainly used for real-time measurement and display for the electrical parameters such as voltage, current, active power, reactive power, frequency, power factor, energy in the electrical circuit, etc. 


1Main functions and characteristics

◆DIN35mm Standard DIN-Rail, seven modulus with segment LCD display

◆Measurement function: Characterized with measurement for three phase three wire voltage, current, frequency, active power, power factor, active energy and reactive energy

◆communication function: RS485 communication interface, supporting DL/T645-2007 protocol, customizable for MODBUS-RTU protocol

◆Multi-rate function: it supports four rates including top, peak, flat, valley rate.


2Specification and type selection:

Product  function

Model

DSSU666

DSSU666-D

DSSU666-F

Voltage    input

Direct    input

AC 3×380V

Current    input

Direct    input

5(80)A

Via    CT/PT

1.5(6)A

Voltage, current, power, reactive power, frequency, power factor

NO

YES

 

Energy

Active    energy

YES

Reactive    energy

YES

Bidirectional    measurement

NO

YES

Multi-rate(clock)

NO

YES

Others

Demand

NO

YES

Power    impulse output

YES

 

Communication

IR

NO

YES

RS485

YES

Display    mode

Two    lines 7 segment LCD

Dimension

L×W×H(mm)

126×89×66   7 modulus


Note: RS485 communication is assumed to be DL/T645-2007 protocol, customizable for Modbus-RTU protocol.

 

3Main technical performance and parameters

Technical parameters

Index

 

 

 

 

Input signal

 

 

voltage

Wiring mode

Three phase three wire

Voltage specification

AC 3×380V

Specified working voltage range

0.9Un~1.1Un; the extensional work    voltage range: 0.8Un~1.2Un

Consumption of the voltage circuit

≤5VA/1W(each phase)

Resistance

>500kΩ(each phase)

 

Current

Rated value

Via PT/CT input   AC1.5(6)A

Direct input   AC 5(80)A

 

Current overload

Input via PT/CT: instant:201max, time of application: 0.5S

Direct input: instant:301max, time of    application: half cycle of the rated frequency

Consumption of the current circuit

≤2VA(each phase)

Resistance

<20mΩ(each phase)

Frequency

Input range

(50±5%)Hz

Clock

Battery capacity

≥1200mAh

Accuracy of clock(day error)

≤0.5s/d(23℃)

 

 

 

 

 

Output

Display

Segment LCD

 

Measurement parameters & grade

Voltage: Class 0.5; Current: Class 0.5; Power factor: Class 1;Frequency: Class 0.5;

Active power: 1.5(6)A Class 0.5/5(80)A Class 1;

Reactive power :Class 1;

Activeenergy: 1.5(6)A Class 0.5/5(80)A Class 1; 

Reactive energy: Class 2;

 

Energy

Multi-rate energy

Support positive/negative total active/reactive multi-rate measurement function

Four-quadrant energy

Support reactive four quadrant energy    measurement function

Max. demand record

Support positive/negative total active/reactive max. demand record, demand cycle and slip time can be set

Pulse constant

AC3×380V  AC1.5(6)A  6400imp/kWh(imp/kvarh)

AC3×380V  AC5(80)A 400imp/kWh(imp/kvarh)

 

Pulse signal output

Provide 1 set(active/reactive energy) optical signal and optocoupler isolated open collector electrical signal pulse output, pulse length:80ms±16ms

 

 

Communication

RS485 communication

Support MODBUS-RTU or DL/T645-2007    communication protocol(switchable), the communication baud rate 1200bps,    2400bps,4800bps,9600bps can be set, assumed to be 9600bps

IR communication(*)

Support MODBUS-RTU or DL/T645-2007    communication protocol(switchable), Infrared wavelength: 900nm~1000nm  communication baud rate:1200bps communication angle: ≥±15°      communication distance:≥4m


Note: 

1. The meter can only be the same as its corresponding technical performance and parameters.

2. The items remarked * is the optional items, which shall be specified by the customers while ordering.


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