Intelligent electronic device using transient fault information and relay protection method
A technology for intelligent electronic equipment and transient faults, applied in emergency protection circuit devices, electrical components, etc., can solve the problems of difficulty in practical application, transient fault information stays in principle, prolong protection action time, etc., and achieve improved protection performance , Reduce equipment costs and operation and maintenance costs, improve protection performance and distance measurement accuracy
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[0026] Aiming at the problem that the transient fault information is difficult to use in relay protection, it is a practical way to combine the utilization of transient fault information with the mature principles of existing relay protection devices. effective solution.
[0027] The structure of the multifunctional integrated intelligent electronic device IED is as follows: figure 1 As shown, the intelligent electronic device IED includes a process layer communication module, a protection module, a distance measurement and wave recording module, a measurement and control module, a station control layer communication module and a man-machine interface module, integrating protection, distance measurement, wave recording and measurement and control, etc. All in one.
[0028] The application of intelligent electronic device IED in intelligent substation is as follows: figure 2 As shown, the IED belongs to the bay layer equipment, follows the IEC61850 standard, and uses Etherne...
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