Auto&Remote Switch Control

● Meter Supports Prepaid Mode & Postpaid Mode

● Auto Tripping when Balance Credit is below Zero (Prepaid Mode)

● Before Auto Tripping, Power Users can receive a Low Balance Alarm by SMS

● Remote Switch Control by using Prepaid System (Prepaid&Postpaid Mode)

● Prepaid&Postpaid Mode of Meters can be set using the Prepaid System

Local&Online Topping Up

● Topping up by RFID Card (Local)

● Topping up by Mobile APP (Online)

● Topping up by Prepaid System (Online)

● Low Balance Credit Alarm by sending SMS

Multi-rate&Multi-tariff

● 4 Tariff Rates (Spike, Peak, Flat, Valley kWh Unit Price)

● 14 Time Intervals by Day

● Set Unit Price of Electricity Consumption for different Time Periods of 1 Day

kWh&kVarh

Total active kWh (bidirectional --positive and negative in total)

Electrical Parameters

U (Voltage), I (Current), P (Active Power), Q (Reactive Power),S (Apparent Power), PF (Power Factor), F (Frequency)

Prepaid Mode

Meter will shut down the power once the credit balance is below zero. (Data like credit balance is saved in the meter)

Postpaid Mode

Meter won't shut down the power once credit balance is below zero. (Can remotely control the meter to shut down the power by using Prepaid System)

Mode Change

Meter can change the mode between prepaid and postpaid by receiving the command from prepaid system

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 circuits breaker, also, this type of control will only be triggered when meter is in Prepaid Mode

Remote Control

Remote control will be commanded by prepaid system. When users give the command of switch on-off to a certain meter, this command will be send to meters through wireless communication and finally meter will shut down or recover the power after receiving the command. This type of control can be done when meter is in Postpaid Mode

Optional Function

4 tariff rates (spike, peak, valley, flat); 14-time intervals by day

Rated Voltage

3x380~456Vac L-L (Voltage signal input will be also served as power supply for meters)

Frequency

45~65Hz

Consumption

<4VA (each phase)

Rated Current

3x10(80)A AC (direct connection); 3x1(6)A AC (connected via CTs)

Starting Current

0.004 Ib (direct connection); 0.002 In (connected via CTs)

Measurement

Class 0.5s

Clock

≤0.5s/d

Pulse Width

80ms±20ms

Pulse Constant

6400imp/kWh (direct connection); 400imp/kWh (connected via CTs)

RS485 Interface

MODBUS-RTU Protocol

Infrared

Used for Meter Reading

LCD Display

8 bits section LCD display

Keypads Programming

Setting of communication, current ratio and etc.

Outline Dimension
(L*W*H)

72mm*88mm*70mm 

Max Wiring Ability (with Flexible Cable)

25mm2

Operating Temperature

-25℃~+55℃

Storage Temperature

-40℃~+70℃

Humidity

≤95% (No condensation)

Altitude

<2000m

ADL300-EY Three-phase four lines direct connect

connect via CT

direct connect