Ankrui fault location arc protection device

1.1Ankrui fault location arc protection deviceOverview

The hardware of the ARB6 series arc protection device adopts modular design (including power module, CPU module, arc light acquisition module, analog acquisition module, input/output module, communication module, human-machine interface module, etc.), integrating multiple functions such as protection, measurement, monitoring, control, communication, fault recording, event recording, etc. It can monitor arc light signals, protect current or voltage signals in real time, and achieve arc light protection function for 0.4kV~35kV medium and low voltage distribution systems. The device software is equipped with specialized protection algorithms, which have strong anti-interference performance, high reliability, and flexible protection implementation methods. It can be used in conjunction with the Acrel-2000 power monitoring system to provide guarantees for the safe and reliable operation of the power system.

The ARB6 series arc protection device is easy to operate, resource rich, stable and reliable, and easy to maintain. It is widely used in industries such as power, water conservancy, transportation, industry, mining, new energy, ships, and buildings.

　　1.2Ankrui fault location arc protection devicefeature

》High performance hardware platform

The device adopts a processor with a main frequency of 550MHz, 16 bit synchronous sampling A/D, 48 point high-speed sampling per week, and real-time parallel computing; Configure 512K bytes of Flash, (192+4) K bytes of Sram, external 4M bytes of NorFlash, and external 512K bytes of Sram, with sufficient hardware resources and high reliability.

》Complete protection function

Suitable for arc light protection and automatic control functions in power systems with voltage levels of 35kV and below. The device can achieve functions such as arc protection, arc fault location, real-time self inspection of arc probes and fiber optic links, failure protection, CT disconnection monitoring, non electricity protection, device abnormal alarm, and fault recording.

》Rich interface resources

Measure 4 sets of three-phase currents and 3 sets of zero sequence voltages using 12 AC current channels and 3 AC voltage channels; 22 active switch input channels (optional)+1 device power loss input channel;

16 independent passive switch output channels (14 normally open contacts, 2 normally closed contacts), including 4 fast relay outlets;

Two RS485 serial communication interfaces, supporting IEC60870-5-103 and Modbus RTU protocols; 3 Ethernet interfaces (optional), supporting TCP IEC60870-5-103 and TCP Modbus RTU protocols; 1 GPS timing interface, supporting IRIG-B timing mode (RS485 interface);

One USB interface, which can upgrade device programs through a USB flash drive and export device settings and fault recording data for easy fault analysis.

》Humanization

The device adopts a fully localized large screen LCD display, with a clear and easy to understand human-machine interface. Flexible and comfortable button design, menu style operation is simple and convenient. The exit of the protection function can be set through the trip matrix, making it convenient for users to select the relay to be activated.

》Transparency

Real time recording of alternating current, arc light, input and output, as well as the status of all protection modules.

The device records the action behavior, action time, and other information of internal components, and can view event records (no less than 200 records), system records (no less than 500 records), and operation logs (no less than 2000 records).

The device records fault waveform information, which can be viewed directly on the device or exported as a waveform file. 16 fault recording information, each recording can trigger 4 segments of recording (each sampling point recording contains at least 46 analog waveforms and 39 switch waveforms), each segment of recording can record the waveform of the first 2 cycles before the fault and 10 cycles after the fault, for a total of 15.36 seconds.

》Reliability Design

The device adopts full graphic programming technology to design each protection function, in order to improve the reliability and correctness of the program. The software and hardware have continuously improved self checking functions, good anti-interference performance, and the device has passed multiple electromagnetic compatibility testing certifications. The anti-interference performance of electrical fast transient pulse group, electrostatic discharge, and surge all meet the IV level standard.

certification