fault recorder

The TK-WJL-01 embedded fault recorder is a dynamic fault recording device designed to meet the development needs of the power system, using advanced DSP and 32-bit embedded CPU, combined with high-performance embedded real-time operating system.

This device adopts advanced DSP technology, embedded real-time operating system technology, network communication technology, and a decentralized installation structure for recording units. It also combines the latest developments in the power system, especially the use of embedded real-time operating systems, greatly improving the stability and reliability of the device.

The TK-WJL-01 embedded fault recorder has the following new features:
1) The recording unit adopts embedded system real-time operating system technology and decentralized installation structure, which improves the security of the entire system.
2) The single wave recording unit consists of a 32-bit ARM9 microprocessor, 32M non-volatile FLASH, 64M SDRAM, and 8GB CF card (or 80G hard disk), completing uninterrupted recording of power system information and achieving true "long wave recording" for the first time.
3) The true goal of network distributed wave recorders has been achieved, which can be conveniently installed in different locations.
4) By flexibly combining software and hardware, it is suitable for units, transformers, and lines, and can be flexibly increased or decreased according to demand, without causing waste or idle situations.
5) The use of 32-bit ARM9 processors greatly improves the performance of the system.
6) 16 bit high-speed A/D analog-to-digital conversion, with a single channel sampling rate of up to 20K.
7) The capacity of a single wave recording unit is 16 analog signals and 32 input signals. The maximum combined capacity of the entire screen is 96 analog signals and 192 input signals.
8) Sampling pulses based on GPS provide a unified time scale for data analysis.
9) A new network concept information recording system is composed of multiple data acquisition modules connected to a local area network through optical fibers or twisted pair cables, with Ethernet technology based on TCP/IP protocol as communication support.
10) A distributed multiprocessor data acquisition unit, where the data acquisition of each processor unit is synchronized, and any abnormality in one recording unit does not affect the normal operation of other units.
11) A powerful upper level analysis software system for scheduling, which manages various station end devices in the network through a network database, truly enables convenient implementation of dual end distance measurement function, making fault location more accurate.
12) By using frequency tracking technology to monitor changes in system frequency in real time and adjust the time interval of data sampling in real-time, calculation errors caused by fundamental frequency fluctuations can be completely eliminated, ensuring accurate calculation of the fundamental frequency components, harmonic components, and sequence components of the system at that time when the fundamental frequency deviates greatly from the power frequency of 50Hz.
13) Self check function: In addition to performing a self check upon startup, the system also conducts regular self checks on various functional modules. When an abnormality occurs, the indicator light will give an alarm message and upload the information to the backend machine.