Intelligent Relay Protection Integrated Experiment

Intelligent Relay Protection our company, this system is a three-phase transformer protection simulation system, it’s very vivid with the actual usage and failure conditions, it is suitable for the course’s experimental teaching, curriculum design, research and experiment of graduation design of “electric power project” and “the relay protection of the protection device, assolenoid style differential relay (2). Three-phase duplex winding transformer, three-phase pressureregulator, ac contactor, intermediate relays, load resistor (3). Current relay,and control equipment etc. consist the integration of the complete collection of experimental teaching system, can realize transformer differential protection, differential protection, transformer microcomputer, over current protection and transformer mothball zero sequence over current protection and other protection experiments, also can realize the characteristics of transformer, such as transformer connection mode, transformer winding distinguish, transformer polarity discrimination etc. (2). Device adopts three-phase five-wire, with short-circuit, over-current, leakage current, shell grounding and other safety protection measures (3). Device with intuitive, measurable, be helpful for training students' practical ability, facilitate student calculation and analysis (4). Devices has operating console, can record many students’ experiment (5). device has light and sound instructions for protection, and can help students to distinguish accident type and scope of accident (6). Device can not only observe during current transformer secondary current, can also observed a current transformer primary current, facilitate student experiment verified current transformer changes electric-magnetic current relay working principle experiment (2). Learning validation electric-magnetic differential relay working principle experiment (3). Learning validation digital time relay working principle experiment (4). Electricity break protection experiment (5). Current 2-phase protecting experiment (6). The zero sequence current protection experiment (7). Learning transformer wiring way, polarity discriminant experiment (8). Learning TA connection mode in the transformer protection (9). The differential circuit wiring correctness test experiment (10). Microcomputer protection movement parameter setting experiment (11). The parameter setting experiment of electromagnetic type differential relay protection (12). Simulation transformer high and low voltage inside short-circuit test area (13). Simulation transformer high and low voltage outside short-circuit test area (14). Simulation transformer unload, observation effects of excitation materials on the current relay protection experiment (15). Simulation transformer internal fault, microcomputer differential protection experiment (16). Simulation transformer external fault, transformer mothball protection experiment (17). The microcomputer transformer protection and transformer mothball protection with action experiment (18). Change the microcomputer transformer differential protection device of inflexion braking characteristics, the influence of the differential protection movement (19). Change the