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ARD2F Smart Motor Protector
Update time:2020-06-12
  • ARD2F Smart Motor Protector
  • ARD2F Smart Motor Protector
  • ARD2F Smart Motor Protector
ARD series intelligent motor protector (hereinafter referred to as protector) can perform various conditions such as start timeout, overload, phase failure, unbalance, underload, ground/leakage, blockage, short circuit and external fault during motor operation.
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General

ARD series intelligent motor protector (hereinafter referred to as protector) can perform various conditions such as start timeout, overload, phase failure, unbalance, underload, ground/leakage, blockage, short circuit and external fault during motor operation. Protection, and SOE fault event recording function, convenient for on-site maintenance personnel to find the cause of the fault. Suitable for coal, petrochemical, smelting, electric power, ships, and civil construction. The protector has RS485 remote communication interface, DC 4 ~ 20mA analog output, and PLC, PC and other control machines form a network system. Remote monitoring of motor operation.


Features

● Measurement functions are divided into basic measurement (current parameter) and co-selection measurement (voltage, power, phase sequence, residual current (leakage current);

● Start timeout, overload, stall, block, underload, phase failure, unbalance, residual current (ground/leakage), temperature, external fault, phase sequence, overvoltage, undervoltage, underpower, overpower, tE time Motor comprehensive protection function;

● 9-channels DI passive dry node input, signal power supply with built-in DC24V power supply;

● 5-channels DO output, which can meet the direct start, star-delta start, autotransformer start, soft start and other starting modes. Real-time remote control "start/stop" operation of the remote master station can be realized through the communication bus;

● It has standard RS485 communication interface and adopts Modbus-RTU and Profibus-DP communication protocol to ensure fast and reliable communication of the host computer;

● It has a DC4-20mA analog output interface and is directly connected to the DCS system to monitor the field devices.


Technical Parameters

Technical data of motor protector ARD2F-25
Auxiliary power supply of protectorAC85V~265V/DC100V~350V, power consumption ≤7VA
Rated working voltage of motorAC380V/AC660V, 50H/60Hz
Rated working current of motor1A(0.1 ~9999)Small specific current transformer

5A(0.1 ~9999)

1.6A(0.4A—1.6A)

6.3A(1.6A~6.3A)

25A(6.3A~25A)

100A(25A~100A)

250A(63A-250A)Specific current transformer

800A(250A~800A)
Relay output contactor, rated load capacity4-way,AC250V, 3A, DC30V, 3A
Switching input2-way, optical isolation
CommunicationRS485 Modbus
Volume of SOE event recorder8 events
EnvironmentWorking temperature-10℃-55℃

Storage temperature-20℃-65℃

Relative humidity5%-95%, no dew

Altitude≤2000m
Class of pollution2
Protection levelIP20


Rated current of motor protector(A)current ratio settingTransformer primary side turnsSetting current Is range(A)Motor Power(kW)
1able to set50.1~99990.12~440
5
10.1~99990.12~440
1.6unable to set10.4~1.60.12~0.55
6.3
11.6~6.30.75~2.2
25
16.3~253~11
100
125~10015~45
250
163~25055~132
800
1250~800160~440


Function

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Wiring

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Typical connection

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