ZOPDL-WJ Electric Power System Microcarmark Protection Training Device

Power system microcomputer line protection training device, microcomputer line protection experiment system is equipped with power supply, two sections of transmission line routes, transformers, intelligent fault setting assessment and other modules. This device mainly completes the training of the characteristics of the protection of the characteristics of the protection device, the wiring, the settings, and the operation. Can be used for training in the power industry.

I. Overview

This device adopts a microcomputer line protection device widely used in modern power engineering, and is equipped with power supply, two-section transmission lines, mutual inductors, intelligent fault setting assessment and other modules. This device m*nly completes practical tr*ning in protection device characteristic testing, wiring, setting, operation, etc. It can be used for tr*ning in the electric power industry, and can also be used for the assessment of practical tr*ning of students in related majors in colleges and universities and technical technical schools.

Intelligent fault setting and large-screen LCD clicker:

operating unit

Operating unit circuit board (integrated with display screen), keyboard.

The operating unit adopts a multiple protection design; dual power supply DC 12V input; 128X64LCD display; 8 switching alarm inputs, up to 48 relay control; the operating unit can be offline for assessment without being connected to the Internet; it can automatically score; and the display prompts when there is an alarm.

It m*nly has the following operating functions:

Student Portal: Used by students when troubleshooting to check the rem*ning assessment time.

Teacher entrance: set faults, resolve all faults, set assessment time, change login password, and set device number. The teacher entrance requires a login password.

Score query: Query the current score of students.

Student ID query: Query the student ID set by the teacher through the computer.

Device number query: Query the local device address. Each operating unit has a unique device address.

Assessment time starts: used for the assessment to start counting down after the teacher has set the assessment time.

2. Practical tr*ning and assessment items

1. Basic practical tr*ning items

(1) Simulate the normal, maximum and minimum operating modes of the system

(2) Analog system short circuit

(3) Basic function test of microcomputer protection device

(4) Microcomputer time-limited current quick-break protection

(5) Microcomputer fixed time overcurrent protection

(6) Microcomputer with time-limited current quick-break protection

(7) Staged current protection

(8) The influence of operating mode on protection sensitivity and sensitivity verification

(9) Current and voltage ch*n protection

(10) Staged overcurrent protection and acceleration after automatic reclosing

(11) Other forms of line protection

² Zero sequence current protection

² Overload protection

² Low voltage load shedding

(12) Secondary circuit wiring

(13) Secondary circuit debugging

(14) Protection calculation and setting

(15) Protective action test

2. Assessment items--design yourself according to the questions, draw up the steps yourself, and complete the assessment.

(1) Overcurrent protection

(2) Current and voltage interlocking quick-break protection

(3) Current and voltage ch*n quick-break, over-current comprehensive protection and automatic reclosing

(4) Overcurrent comprehensive protection and automatic reclosing

(5) Current and voltage ch*n protection and acceleration before automatic reclosing

(6) Secondary circuit troubleshooting

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