| Certification: | CCC, ISO9001 |
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| Shell Material: | Stainless Steel |
| Voltage Level: | Medium Voltage |
| Installation: | Fixed |
| Structure: | Withdrawable |
| Current: | AC |
| Samples: |
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| Customization: |
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Audited Supplier Introducing the 36kv 40.5kv Indoor Medium Voltage Vacuum Circuit Breaker, a cutting-edge solution designed to meet the demands of modern power systems. With its advanced technology and reliable performance, this circuit breaker is the perfect choice for industrial and mining enterprises, power plants, and substations.
The ZN85-36(40.5)kV/T2000A-31.5kA type indoor M.V. VCB is specifically engineered to operate in tri-phase AC 50Hz power systems. With a rated voltage of 36(40.5)KV, this circuit breaker ensures efficient and safe power distribution in various applications.
One of the key features of this vacuum circuit breaker is its exceptional breaking capacity. With a breaking current of 31.5kA, it can effectively interrupt fault currents, protecting your electrical equipment and preventing potential damage. This high breaking capacity makes it an ideal choice for demanding environments where reliability is paramount.
The indoor design of this circuit breaker allows for easy installation and maintenance. Its compact size ensures efficient use of space, making it suitable for both new installations and retrofit projects. Additionally, the vacuum technology employed in this circuit breaker eliminates the need for regular maintenance, reducing downtime and increasing operational efficiency.
Safety is a top priority, and this circuit breaker is equipped with comprehensive protection features. It incorporates advanced protection mechanisms to detect and respond to abnormal conditions, ensuring the safety of both the electrical system and personnel.
With its robust construction and high-quality materials, this vacuum circuit breaker offers long-lasting performance and durability. It is designed to withstand harsh environmental conditions and operate reliably even in extreme temperatures.
| Item | Unit | Data | ||||||
| Rated voltage | kV | 36(40.5) | ||||||
| Rated insulation level | 1 min power frequency withstand voltage(effective) | kV | 95 | |||||
| lightning impulse withstand voltage (peak) | kV | 185 | ||||||
| Rated frequency | Hz | 50 | ||||||
| Rated current | A | 1250 | 1600 | 2000 | ||||
| 4s rated short time withstand current | kA | 25 | 31.5 | |||||
| Rated peak withstand current | kA | 63 | 80 | |||||
| Rated short circuit breaking current | kA | 25 | 31.5 | |||||
| Rated short circuit making current | kA | 63 | 80 | |||||
| Rated operation sequence | O-0.3S-CO-180s-CO | |||||||
| Breaking times of rated short circuit breaking current | times | 20 | ||||||
| Rated capacitor bank breaking current | A | 630 | ||||||
| Mechanical life | times | 10,000 | ||||||
| Item | Unit | Data |
| Clearance between open contacts | mm | 18±1 |
| Over travel | mm | 4±1 |
| Contact limit erosion of over travel | mm | 3 |
| Average closing speed | m/s | 1.0-1.6 |
| Average opening speed(Contact separation 12mm) | m/s | 1.3-1.7 |
| Contact bouncing duration at closing operation | ms | ≤3 |
| Three phase contact closing non-simultaneity of contacts | ms | ≤2 |
| Three phase contact opening non-simultaneity of contacts | ms | ≤2 |
| Maximum rebound during opening | mm | ≤3 |
| Buffer stroke | mm | 13±1 |
| Circuit resistance | μΩ | ≤65 |
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