Three Phase Prepaid Energy Meter

 

Right now Acrel has three prepaid energy meters, ADL100-EY single phase prepaid meters with intro-control, ADL300-EY three-phase prepaid meters with intro-control, and ADF400L prepaid energy meters, they are widely used for calculating the single and three-phase active energy respectively on the frequency of 50 Hz. The meter has functions of prepaid, load controlling and RS485 communication, etc. Inside meters have a small holding break to realize the current on or off. With the Acrel IoT EMS platform can realize remote control the power. These meters meet the related technical requirements of electronic power meters in the IEC62053-21, IEC62053-22 standards.

 

 

 

 

Technical parameter		ADL300-EY
Voltage	Reference voltage	3×220/380V
	Reference frequency	50Hz
	Consumption	<4VA(Each phase)
Current	Input current	1(6)A,10(80)A
	Starting current	Connect directly: 0.004 Ib, connect via CT: 0.002In
	Consumption	<4VA (Maximum current)
Measurement performance	Accuracy of measuring	0.5s Class
Clock accuracy		Error ≤0.5s/d
Active pulse	Pulse width	80ms±20ms
	Pulse constant	6400imp/kWh,400 imp/kWh
Communicati on	Interface	RS485(A+、B-)
	Connection mode	Shielded twisted pair conductors
	Protocol	MODBUS-RTU

 

 

Function name	Function description		Function provide
	ADL300-EY	ADL100-EY
Measurement of kWh	Total active kWh (positive and negative in total)		■
Measurement of electrical parameters	U、I 、P、Q、S、PF、F		■
Pre-paid mode	Through RS485 communication prepaid recharge, data encryption		■
Control	Built-in high-capacity sub-holding relay to achieve load on-off control		■
LCD display	8 bits section LCD display		■
Communication	Communication interface: RS485, Communication protocol: MODBUS-RTU		■
Multi-tariff	4 tariff rates, 14-time interval by day		□F

（■： means standard; □： means optional）

Note:Pre-paid mode function can only be achieved with the pre-paid system designed by Acrel Co, Ltd.

 

 

Direct connect

Connect via CT

Note： The torque of direct connect should not be greater than 4.0N·m， and the torque of connecting via CT should not be greater than 2.0N·m.

 

 

ADL300-EY Three-phase four lines direct connect

ADL300-EY Three-phase four lines connect via CT

Auxiliary function

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