DYDLZD-04 substation comprehensive automation system training platform

I. Overview

The system consists of three parts: primary system screen, secondary protection cabinet, and substation background system. The primary system uses a typical 110kV substation project as a model . There are two m*n transformers, both of which are on-load voltage regulation types. There are two incoming lines. The 110kV side and the 10kV side use single bus sections, and the 35kV side uses single bus sections. Side bus wiring. The secondary part all adopts microcomputer-type relay protection devices and measurement and control devices, and is divided into four protection cabinets for installation; it can upload data and accept commands from the monitoring host, fully meeting the requirements of "four remote" functions and telecontrol. At the same time, the use of multi-serial cards effectively solves the communication bottleneck problem between the protection device and the background system.

2. Characteristics

1. Equipped with a typical and complete primary system, the switches and knife gates are operated by different types of switches, and the interlocking settings are complete. Various types of faults can be set in the electrical circuit;

2. The secondary relay protection device is fully configured;

3. The equipment at the bay layer has good performance and reliable operation;

4. The communication system has an independent communication channel to meet the requirements of unattended operation;

5. Good completeness, complete configuration of primary system, secondary system and monitoring system;

6. Strong openness, the protection measurement and control device adopts standard communication protocol, and the software system adopts industrial configuration software and open protocol.

3. Practical tr*ning projects

Line protection class

(1) System normal, **, *** minimum operating mode

(2) Electrical system short circuit

(3) Basic function test of microcomputer protection device

(4) Microcomputer definite time overcurrent protection

(5) Microcomputer time-limited current quick-break 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) Inverse time limit protection experiment

(11) Staged overcurrent protection and acceleration before automatic reclosing

(12) Staged overcurrent protection and acceleration after automatic reclosing

(13) Power direction overcurrent protection

(14) Zero sequence current protection

(15) Overload protection

(16) Low voltage load shedding

Line design tr*ning (self-design, wiring, action test)

Current and voltage ch*n quick-break protection and over-current protection

Current and voltage ch*n quick-break, over-current comprehensive protection and automatic

Dynamic reclosing

Inverse time current protection and overcurrent protection

Inverse time limit, overcurrent comprehensive protection and automatic reclosing

Current and voltage ch*n protection and acceleration before automatic reclosing

Current and voltage ch*n protection and automatic reclosing acceleration

Inverse time overcurrent and acceleration protection before automatic reclosing

Inverse time overcurrent and acceleration protection after automatic reclosing

Comprehensive line protection

110kV line comprehensive protection (neutral point directly grounded)

35kV line comprehensive protection (neutral point grounded through coil)

10kV line comprehensive protection (neutral point not grounded)

Transformer protection

Normal system operation and measurement of unbalanced current

Analog transformer gas protection

Transformer current quick-break protection

Microcomputer transformer longitudinal differential protection setting

Second harmonic braking experiment of transformer

Transformer differential quick-break protection

Three-winding transformer differential protection

Y/Y-12 double winding transformer differential protection

Y/△-11 double winding transformer differential protection

Study on Ratio Braking Characteristics

Overcurrent protection of double winding transformer

Overcurrent protection of three-winding transformer

Transformer low voltage starting overcurrent protection

Transformer composite voltage starting overcurrent protection

Neutral point directly grounded operating transformer zero sequence protection

Zero-sequence protection of transformer operating with partial neutral point grounded

Overload protection of double winding transformer

Overload protection of three-winding group transformer

Transformer design tr*ning (self-design, wiring, operation test)

Y/△-11 double winding transformer overcurrent protection

Y/△-11 double winding transformer overload protection

Comprehensive protection of double winding transformer

Three-winding transformer comprehensive protection

10kV capacitor bank protection

Three-stage current protection

Overvoltage protection

Low voltage protection

Unbalanced voltage protection

Unbalanced current protection

Zero sequence current protection

Comprehensive protection of capacitor banks

automatic device

Automatic reclosing (front acceleration, rear acceleration, synchronization check, no pressure check)

The backup power supply is automatically turned on (incoming line backup, bus tie backup)

Automatic voltage and reactive power control (implemented by background software)

A system shutdown operation

Substation integrated automation system