Base on the technology of Germany Siemens, ZN12-40.5 Indoor AC HV Vacuum Circuit breaker is developed. It is an indoor switchgear used for the power system with 40.5 kV rated voltage, three-phase AC 50 Hz. The circuit breaker is able to be operated frequently and break the false short circuit current for many times. It is not only suitable for trolley switchgear but for fixed switchgear to protect and control the apparatus in industrial and mining field, enterprises, power plant and substation.
Features:
High breaking capability, long endurance. Adopting integration spring operating mechanism, it is simple in structure, small in size and reliable in performance. The main galvanic circle and operating mechanism is in front and back arrangement and they are flexible and easily mounted. It is simple and reliable with mechanical and electrical interlocking. It adopts plateau design and it has good insulation level.
| No. | Name | Unit | Technical parameter | |
| 1. Â Â Â Â Â Â Â | Rated voltage | KV | 40.5 | |
| 2. Â Â Â Â Â Â Â | Rated current | A | 1250,1600,2000,2500 | |
| 3. Â Â Â Â Â Â Â | Rated short circuit breaking current | Â Â KA Â | 25 | 31.5 |
| 4. Â Â Â Â Â Â Â | Peak withstand current | 63 | 80 | |
| 5. Â Â Â Â Â Â Â | Short time current (4s) | 25 | 31.5 | |
| 6. Â Â Â Â Â Â Â | Rated short circuit making current | 63 | 80 | |
| 7. Â Â Â Â Â Â Â | Rated short circuit breaking times | Times | 30 | 30 |
| 8. Â Â Â Â Â Â Â | Operating sequence | Â | O-0.3s-CO-180s-CO | |
| 9. Â Â Â Â Â Â Â | Lightning impulse withstand voltage | Â KV | 185 | |
| 10.     | Rated short time power frequency withstand voltage(1min) | 95 | ||
| 11. Â Â Â Â | Closing time | Â Ms | <=90 | |
| 12. Â Â Â Â | Opening time | <=70 | ||
| 13. Â Â Â Â | Energy stored time | S | <=15 | |
| 14. Â Â Â Â | Mechanical endurance | Times | 10000 | |
| 15. Â Â Â Â | Rated current breaking times | 10000 | ||
| 16. Â Â Â Â | Energy stored electric machine rated frequency | W | 275 | |
| 17. Â Â Â Â | Energy stored electric machine rated voltage | Â V | DC110Â Â AC/DC220 | |
| 18. Â Â Â Â | Making electromagnet rated voltage | DC110Â Â DC220 | ||
| 19.     | Making electromagnet rated resistance | ¦¸ | 57.7  247 | |
| 20. Â Â Â Â | Making electromagnet rated current | Â A Â | DC1.91Â Â DC0.89 | |
| 21. Â Â Â Â | Over current release current | 5 | ||
| 22. Â Â Â Â | Auxiliary switch rated current | AC10Â Â DC5 | ||
| 23 | Contact moving distance | Â Mm | 25(+ or -)2 | |
| 24 | Contact travel | 8(+ or -)2 | ||
| 25 | Closing speed | M/s | 1.0 to 1.8 | |
| 26 | Opening speed | M/s | 1.0 to 1.8 | |
| 27 | Contact closing bouncing time | Ms | <=2 | |
| 28 | Phase to phase central distance | Mm | 350,400,460 | |
| 29 | Asynchronization of making contact | Ms | <=2 | |
| 30 | Each phase main circuit resistance | ¦Ì¦¸ | <=40 | |
| 31 | Wear thickness allowance of moving contact and static contact | Mm | <=3 | |
Our workshop
Our sales team
Â
LED Strip Lamp ,include in LED Rigid Strip Light ,Decorative flexible Led Strip Lamp , SMD5050 Led Strip light and so on.
LED SMD 5050 2835 3020 5730 3014 5225 3528,many kinds for choice,with different color,change color RGB,flash and so on.
IP20/IP40/IP65/IP67/IP68 led strip,Neon Flex,Normal brightness/High brightness/Super brightness/High CRI/Hybrid brightness led strip,Unique led strip,Colorful / white led strip
Applications:
1. Edge-lighting of transparent or diffused materials
2. Archway /Canopy & Bridge Edge Lighting
3. Backing lighting for signage letters
4. Path and contour marking
5. Car lighting
6. Illuminated signs
7. Mood lighting
8. Holiday Decoration
SMD5050 Led Strip light
Smd 5050 Led Strip Light,Smd 5050 Rgb Led Strip Light Kit,High Lumens Smd 5050 Led Strip Light
JIANGSU GEMANLED LIGHTING CO., LTD. ,