Acrel ADL300-EY Three-phase Prepayment Electric Meter

Name: ADL300-EY Three-phase Prepayment Electric Meter
Brand: Jiangsu Acrel Micro-grid Research & Development Institute

ADL300-EY three-phase prepayment energy meter is used to measure three-phase AC active energy with a rated frequency of 50Hz. It has the functions of prepayment control, load control, time control and RS485 communication. The performance indicators meet the GB/T17215.321-2008 standard. This meter is an ideal meter for reforming the traditional power consumption system, realizing the commercialization of electric energy, solving the difficulty of charging, adjusting the load status of the power grid, and improving the management level of power consumption.

Specification of ADL300-EY Three-phase Prepayment Electric Meter

Parameter

Parameter	Description&Value
Measurement	kWh&kVarh	Total active kWh (bidirectional --positive and negative in total)
Measurement	Electrical Parameters	U (Voltage), I (Current), P (Active Power), Q (Reactive Power), S (Apparent Power), PF (Power Factor), F (Frequency)
Function Mode	Prepaid Mode	The meter will shut down the power once the credit balance is below zero. (Data like credit balance is saved in the meter)
	Postpaid Mode	The meter won't shut down the power once the credit balance is below zero. (Can remotely control the meter to shut down the power by using Prepaid System)
	Mode Change	The meter can change the mode between prepaid and postpaid by receiving the command from the prepaid system
Control	Auto-tripping Control	Auto-tripping control is processed by the built-in high-capacity holding relay of the meters to realize on-off control of the circuits breaker, also, this type of control will only be triggered when the meter is in Prepaid Mode
Control	Remote Control	Remote control will be commanded by a prepaid system. When users give a command to switch on-off to a certain meter, this command will be sent to meters through wireless communication, and finally, the meter will shut down or recover the power after receiving the command. This type of control can be done when the meter is in Postpaid Mode
Multi-rate Multi-Tariff	Optional Function	4 tariff rates (spike, peak, valley, flat); 14-time intervals by day
Multi-rate Multi-Tariff	Optional Function
Input Voltage	Rated Voltage	3x380~456Vac L-L (Voltage signal input will be also served as a power supply for meters)
	Frequency	45~65Hz
	Consumption	<4VA (each phase)
Input Current	Rated Current	3x10(80)A AC (direct connection); 3x1(6)A AC (connected via CTs)
Input Current	Starting Current	0.004 Ib (direct connection); 0.002 In (connected via CTs)
Accuracy	Measurement	Class 0.5s
Accuracy	Clock	≤0.5s/d
Pulse	Pulse Width	80ms±20ms
Pulse	Pulse Constant	6400imp/kWh (direct connection); 400imp/kWh (connected via CTs)
Communication	RS485 Interface	MODBUS-RTU Protocol
Communication	Infrared	Used for Meter Reading
HMI	LCD Display	8 bits section LCD display
HMI	Keypads Programming	The setting of communication, current ratio and etc.
Mechanical Feature	Outline Dimension(LWH)	72mm88mm70mm
	Outline Dimension(LWH)	72mm88mm70mm
	Max Wiring Ability (with Flexible Cable)	25mm2
Environment	Operating Temperature	-25℃~+55℃
	Storage Temperature	-40℃~+70℃
	Humidity	≤95% (No condensation)
	Altitude	＜2000m

Features of ADL300-EY Three-phase Prepayment Electric Meter

At least two (-2C) RS-485 interfaces can be configured to meet ModBUS-RTU or DL/T 645 protocol communication, and can be configured with more than 1200/2400/4800/9600/19200 baud rates;

It has the function of remote prepayment, which means the power can be used after paying first. It also supports multiple payment methods, and can be paid through a third-party payment platform. Credit function can also be realized. And it supports credit card recharge function;

The meter with direct connection specification can be opened and closed internally, and the meter with transformer connection specification should support at least two DOs to control the external circuit breaker to realize opening and closing.