ABB RET670 is a control relay mainly used for power system protection and automation.The following is a detailed introduction to ABB RET670:

I.Main functions and applications

Power system protection:

RET670 can be used to protect generators,transformers,cables and lines in power systems from multiple faults such as overcurrent,overload and short circuit.

It has fast and low impedance differential protection function,and the requirements for CT are very low.The differential protection function has 2nd harmonic and waveform block suppression functions to avoid CT saturation and transformer surge current tripping.

Remote monitoring and control:

RET670 supports remote monitoring and control,allowing operators to monitor the power system status and operate from a distance.

It can communicate with monitoring systems,SCADA systems or other automation equipment to achieve remote monitoring and control of power systems.

Event recording and alarm function:

RET670 has the ability to record system events and faults for analysis and troubleshooting.

It also has an alarm function,which will issue an alarm signal in time when a fault or abnormal situation is detected.

Multiple protection and control functions:

In addition to the differential protection function,RET670 also has a variety of low-impedance limited ground fault protection functions,high-impedance differential protection functions,distance protection functions,etc.

It can also be equipped with complete control and interlocking functions,including synchronization check functions,so as to integrate the main control or local backup control functions.

2.Technical features and advantages

High accuracy and reliability:

The RET670 adopts advanced protection algorithms and detection technologies,which can accurately identify faults and respond quickly.

It has high reliability and stability and can work normally in various harsh environments.

Easy configuration and maintenance:

The configuration of RET670 is flexible and can be customized according to actual needs.

It is also easy to maintain,which is convenient for engineers to carry out daily maintenance and repair work.

Rich communication interfaces:

RET670 has a variety of communication interfaces,such as Ethernet,serial communication,etc.,which are convenient for data exchange and communication with other devices and systems.

Integration into automation system:

RET670 can be integrated into the automation control system of the power system to realize intelligent control of power equipment.

3.Application fields

ABB RET670 is widely used in various power systems and industrial automation fields,such as power plants,substations,industrial production lines,etc.It can provide comprehensive protection and monitoring functions for electrical equipment to ensure the safe and stable operation of the power system.

 

The company mainly imports PLC modules,programmable controllers,servo control systems and DCS spare parts,such as:ABB,AB(Rockwell),GE(General Electric),Bentley,Honeywell Er),Emerson.),Motorola,Invensys,Westinghouse,etc.The company has established close cooperative relations with many world-renowned PLC and DCS product maintenance service providers.We can purchase goods directly from abroad and provide equipment and spare parts from different countries and manufacturers.
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