Shanghai Daiyu Education Equipment Manufacturing Co., Ltd.
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1. Safety protection system of the device
1. The m*n power supply is controlled by a three-phase key switch, and a three-phase illuminated fuse is provided as a phase f*lure indicator.
2. The power supply of the control panel is controlled by the contactor through the start and stop buttons.
3. The screen is equipped with a voltage-type leakage protection device and a set of current-type leakage protection devices. If there is leakage inside or outside the screen or strong current output, an alarm will be issued and the m*n power supply will be cut off to ensure the safety of the experiment.
4. The primary and secondary sides of the three-phase voltage regulator are equipped with overcurrent protection devices, which can automatically protect when there is overcurrent or direct short circuit between phases and lines.
5. Equipped with a timer and alarm recorder (service manager) to record the number of illegal uses and provide a unified standard for the assessment of students' experimental skills.
2. Experimental projects
1. Normal operation of the system and measurement experiment of unbalanced current
2. Simulated transformer gas protection experiment
3. Transformer current quick-break protection experiment
4. Microcomputer transformer longitudinal differential protection setting experiment
5. Second harmonic braking experiment of transformer
6. Transformer differential quick-break protection experiment
7. Three-winding transformer differential protection experiment
8. Y/Y-12 double winding transformer differential protection experiment
9. Y/△-11 double winding transformer differential protection experiment
10. Research experiments comparing ratio braking characteristics
11. Overcurrent protection experiment of double-winding transformer
12. Overcurrent protection experiment of three-winding transformer
13. Transformer low voltage starting overcurrent protection experiment
14. Transformer composite voltage starting overcurrent protection experiment
15. Zero-sequence protection experiment of operating transformer with neutral point directly grounded
16. Zero-sequence protection experiment of transformer operating with partial neutral point grounded
17. Overload protection experiment of double-winding transformer
18. Overload protection experiment of three-winding transformer
19. Y/△-11 double winding transformer overcurrent protection experiment——designed and assessed by students themselves
20. Y/△-11 double-winding transformer overload protection experiment - designed and assessed by students themselves
21. Comprehensive experiment on double-winding transformer protection - designed and assessed by students themselves
22. Three-winding transformer protection comprehensive experiment - designed and assessed by students themselves
23. Telemetry, remote control, and remote signaling experiments
3. Configuration list
|
serial number |
name |
Specifications and models |
unit |
quantity |
Remark |
|
1. |
Practical tr*ning screen |
ZRDL-WBA |
set |
1 |
|
|
2. |
Tr*ning table |
1600*750*750 |
set |
1 |
|
|
3. |
luxury computer desk |
600*600*1200 |
set |
1 |
|
|
4. |
Microcomputer transformer protection device |
RE-800 |
tower |
2 |
|
|
5. |
AC voltmeter |
85L17 |
Only |
3 |
|
|
6. |
AC ammeter |
6L2 |
Only |
6 |
|
|
7. |
Three-phase voltage regulator |
1KW |
tower |
1 |
|
|
8. |
Universal transfer switch |
LW8-D |
Only |
2 |
|
|
9. |
short circuit load |
set |
1 |
||
|
10. |
Experimental wire |
Safe |
strip |
several |
|
|
11. |
Current Transformer |
custom made |
Only |
several |
|
|
12. |
voltage transformer |
custom made |
Only |
several |
|
|
13. |
software |
middle man |
set |
1 |
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