Description
The platform is based on the teaching requirements of “power system relay protection”, “power engineering”, “power automation”, “power system microcomputer protection” and other courses, and combined with the actual application and development of production and the development of microcomputer integrated protection experimental device.Through this experiment, students can be familiar with and master the common microcomputer protection principle, protection wiring and setting test method in the power system.Compact device design, strong integrity, complete protection function, protection, measurement, control, monitoring and communications functions in one, this device not only can be used as electric power, electrical and automation professional line protection class teaching experiment platform, and it also can as students are familiar with and master the electric power communication agreement and a variety of hardware and software platform of the programming software.
Personal safety protection function and equipment safety protection
To meet the national standard, the power input of the experimental device is provided with a current leakage device. If the leakage occurs inside or outside the control screen or in the strong power output, the device will immediately alarm and cut off the total power supply to ensure the safety of the experiment.
The completely closed safety experiment wire is adopted to avoid the electric shock accident caused by the student’s two hands.
The experimental project
1. Systematic experiment
(1) basic function test of microcomputer protection device
(2) microcomputer fixed time overcurrent protection
(3) the microcomputer has no time-limited current velocity fault protection
(4) the microcomputer with time-limited current velocity protection
(5) staged current protection
(6) influence of operation mode on protection sensitivity and sensitivity check
(7) current and voltage linkage protection
(8) anti-time-limit protection experiment
(9) stage over current protection and acceleration before automatic recloc
(10) acceleration after phase-type overcurrent protection and automatic recloc
(11) study on other forms of protection: power direction overcurrent protection experiment; zero-sequence current protection experiment; overload protection experiment; low-voltage load reduction experiment
