ZN12-12 Vacuum Circuit Breaker
Production Introduction
ZN12-12 Vacuum Circuit Breaker, this Indoor High-voltage Vacuum Circuit Breaker combines the advantages of domestic column-mounted circuit breakers.The company has absorbed the mature experience of Japan's Toshiba company's column-mounted automatic sectionalizer, and its performance is ahead of similar foreign and domestic products.
The ZN12-12 Vacuum Circuit Breaker mainly consists of a vacuum interrupter, an operating mechanism and a supporting part.There are six epoxy resin cast insulators are fixed on the mechanism box welded by angle steel plates, and three arc extinguishing chambers are fixed on the insulators through the upper and lower outlet ends of cast aluminum.
The ZN12-12 Vacuum Circuit Breaker a soft connection on the lower outlet end, and the soft connection is connected with the conductive clip on the moving guide rod of the vacuum interrupter. The bottom of the moving guide rod is equipped with a universal rod end bearing.The rod end bearing is connected to the lever at the lower outlet end through a shaft pin, and the switch main shaft transmits the force to the moving guide rod through three insulating pull rods to make the switch close and open.
Specification
| No. | Item | Unit | Data | ||
| 1 | Rated Voltage | Kv | 12 | ||
| 2 | Maximun Working Voltage | Kv | 12 | ||
| 3 | Rated Current | A | 1250 | 1600 | 2000 |
| 4 | Rated short Circuit Breaking Current | Ka | 31.5 | 31.5 | 31.5 |
| 5 | Rated short Circuit Switching Current | Ka | 100 | 100 | 100 |
| 6 | Rated Peak Withstand Current | Ka | 100 | 100 | 100 |
| 7 | 4S Rated Short-circuit Withstand Current | Ka | 31.5 | 31.5 | 31.5 |
| 8.a | Rared Insulation Level: 1min Power Freauency Withstand Voltage | Kv | 42 | ||
| 8.b | Rared Insulation Level：Impulse Withstand Voltage | Kv | 75 | ||
| 9 | Rated Operating Sequence | S | O-0.3S-CO-180S-CO | ||
| 10 | Mechaical Life | Times | 10000 | ||
| 11 | Rated Short-circuit Current Breaking Times | Times | 50 | ||
| 12 | Rated Operating Mechanism Closing Voltage | V | AC/DC 110/220 | ||
| 13 | Rated Operating Mechanism Opening Voltage | V | AC/DC 110/220 | ||
| 14 | Contact Opening Distance | mm | 11 + 1 | ||
| 15 | Overtravel(The Length of Contact Spring Compression) | mm | 3.5 + 0.5 | ||
| 16 | Synchronicity of Opening and Closing of Three-phase Contact | ms | ≤2 | ||
| 17 | Contact Closing Bounce Time | ms | ≤2 | ||
| 18 | Average Opening Speed | m/s | 0.6~1.8 | ||
| 19 | Average Closing Speed | m/s | 1.0~1.8 | ||
Prodection details
ZN12-12 VACUUM CIRCUIT BREAKER
Installation Dimensions：
Company Profile
Shaanxi Huadian Electric Co., Ltd. is located in Baoji High-tech Development Zone, Shaanxi Province. It is a modern high-tech enterprise specializing in the production of vacuum circuit breakers integrating R&D, manufacturing and sales.
Shaanxi Huadian has a circuit breaker production workshop of nearly 10,000 square meters, a fully automated control assembly line and a full set of imported circuit breaker testing equipment, with an annual production capacity of 10,000 units.
The company is committed to serving China's electric power and power distribution system to provide safe and stable products and services, mainly producing and selling vacuum circuit breakers, fuses, instrument transformers, isolation switches, load switches, cable accessories, cable branch boxes, wall bushings, ring network inflation cabinets and other electrical equipment.
Production Workshop
Prodect qualification
Certifications
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