Kwh Meter 3 Phase

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Description

Product Detail

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.

1?Main 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.

2?Specification 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.

3?Main 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		>500kO(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		<20mO(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