MR181E Relay Protection and Automation Electric Power Systems Trainer Educational Lab Equipment Demonstrational Equipment Electrical Installation Lab 1. Equipment introduction 1.1 Overview In the context of rapid economic development, the demand for stable power supply is getting higher and higher. During the operation of the power supply lines of the power grid, unpredictable faults often occur in the power supply lines. These faults are various, which may be disconnection faults or short-term faults caused by plants and animals around the power grid. Different faults have different solutions. Choosing the right solution saves time and money. In the MR181E relay protection and automated power system trainer, the equipment provides a variety of experiments to simulate faults, which can help users understand various fault response plans and automation solutions. 1.2 Features 1. The equipment has excellent grounding performance and can ensure the safety of users. 2. The equipment adopts a modular design, and the experimental functions can be clearly displayed through the device modules. 3. The device adopts an electrically integrated design, which connects all the electrical cables of the device to the back of the device, greatly reducing the size of the device and allowing the device to be used for experiments in more environments. 4. The experimental modules are rich, diverse and comprehensive, and you can rely on one device to understand all functions of relay protection. 2. Technical parameters Input power supply: three-phase five-wire AC380V size:1180*550*890mm weight:105Kg Ambient temperature -10℃～+40℃ Relative humidity <85% (25℃) 3. Components list and detailed introduction 3.1 Main part No. Name 1 Fuse (1A) 2 Potentiometer 3 Fuse (2A) 4 Power-on timer 5 3P circuit breaker 6 Pulse signal relay 7 Adjustable disk resistance 8 Time Relay 9 Thermal trip circuit breaker 10 Communication port 11 Current relay (including over and under current) 12 Undervoltage relay 13 Touch display 3.2 Equipment configuration list No. Name Qty Component 1 Touch display 1 Component 2 Overcurrent relay 5 Component 3 Undercurrent relay 2 Component 4 Undervoltage relay 1 Component 5 Time Relay 2 Component 6 Automatic air switch 2 Component 7 Thermal trip circuit breaker 1 Component 8 3P circuit breaker 1 Component 9 Adjustable disk resistance 1 Component 10 Power-on timer 1 Component 11 Potentiometer 1 3.3 Accessories No. Name Qty 1 4mm safety electrical cable 10 2 U-shaped bridge link line 20 3 2mm safety electrical cable 25 4 Cable 1 5 Software CD 1 4. Experiment list Experiment 1 Understand the regional functions of relay protection and automated power system trainers. Experiment 2 demonstrates the research experiment of automatic reclosing of backup power supply for power supply lines. Experiment 3 demonstrates the research experiment on maximum current protection of power supply lines. Experiment 4 demonstrates the research experiment of instantaneous current cut-off of power supply lines. Experiment 5 demonstrates the research experiment on maximum current protection of single-feed radial power supply line. Experiment 6 demonstrates the research experiment on longitudinal differential protection of power supply lines. Experiment 7 demonstrates the research experiment on transverse differential protection of power supply lines. Experiment 8 demonstrates the research experiment of transformer differential protection. Experiment 9 demonstrates the research experiment of maximum current protection of automatic switching circuit. Experiment 10 demonstrates the research experiment of automatic switch thermal tripper circuit overload protection. Experiment 11 demonstrates the research experiment of automatic reclosing of power supply lines. Experiment 12 demonstrates relay protection and automated power system trainer supporting software experiment.
