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GDHB Micro-computer Protection Simulation Training System is a novel experimental device designed and developed by integrating the teaching contents of many professional courses such as relay protection, electrical equipment, automatic device, factory power supply, microcomputer protection of power system in colleges and universities, combining with the actual production application and development. It can carry out experiments on the teaching contents such as relay protection, electrical secondary control circuit and automatic devices commonly used in power plants, substation and factories, and can train students' professional skills in the form of real and intuitive experimental teaching. It has advantages of high usage of components, systematic experimental teaching, less occupied experimental space, and cost-effective.
The device adopts integrated distribution structure, which can be combined according to the experimental content, and is easy to install and use. The experimental instrument has high precision, digital, intelligent and man-machine dialogue and these functions can be selected as per user demand. The device provides reliable protection for the power supply, instruments and meters involved in the control screen and the measuring parts, and sets up a reliable personal safety protection system to avoid the damage to the experimental system and personal injury caused by students' wrong operation in the experiment.
Standard compliance
Comprehensive and strong integration of the test items in electric power automation and relay protection in various domestic colleges and universities.
AC current output
|
6 channel, every channel: 30A/420VA; 3 channel, every channel: 60A/450VA |
AC voltage output |
6 channel, every channel: 120V/80VA |
Accuracy of AC output |
<0.2% (within major measurement range) |
DC current output: 3 channel, every channel |
±10A/200VA |
DC voltage output: 3 channel, every channel |
±160V/70VA |
Accuracy of DC output |
<0.2% (within major measurement range) |
Phase |
0~360° |
Phase accuracy |
0.2° |
Harmonic wave super-position |
2~20 times |
Output frequency |
0~1000Hz |
Frequency accuracy |
<0.001Hz |
Binary input |
10 channel (can be extended) |
Binary output |
8 pairs (can be extended) |
Independent DC |
DC110V/220V, rated current: 1.5A |
1) Protection configuration
2) Differential protection
Differential quick-break |
<20ms (1.5 times setting value |
Percentage differential protection |
<35ms (2 times setting value, no inrush restraint) |
3) Back-up protection
Current setting value |
0.1In~20In |
Setting error |
< 2.5% |
Time setting error |
<1% setting value+35ms |
Circuit simulation protection device
1) Protection configuration
2) Remote test and control
3) Over-current protection
Current setting range |
0.1In~20In |
Current setting error |
< 5% |
Voltage setting error |
< 5% |
Time setting error |
30ms~100s |
Error of time |
time setting value*1%+35ms |
Current setting range |
0.02A~12A (when it is external connected.) |
Current setting error |
< 5% |
Time setting range |
30ms~100S |
Error of time |
time setting value*1%+35ms |
5) Low frequency protection
Frequency setting range |
45~50Hz |
Frequency setting error |
0.01Hz |
Setting range of slip frequency lockout |
0.3~10Hz/S |
Time setting range |
100ms~100S |
Error of time |
time setting value*1%+35ms |
Voltage setting range |
0.5~0.9Un |
Voltage setting error |
< 5% |
Setting range of slip frequency lockout |
0.1~1.5Un/S |
Time setting range |
100ms~100S |
Error of time |
time setting value*1%+35ms |
Time setting range |
0.0~9.9S |
Error of time |
time setting value* 1%+35ms |
Resolution |
<1ms |
Signal input mode |
Passive contact |
9) Remote metering class
Current |
class 0.2 |
Others |
class 0.5 |
Packing List
GDHB Micro-computer protection simulation training system |
1 set |
GDHB system power supply |
1 set |
Differential simulation protection device |
1 set |
Circuit simulation protection device |
1 set |
Power cord |
1pc |
Connection line |
Several |
Ground cable |
1 set |
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