| Breaking Capacity: | High Voltage Circuit Breakers |
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| Operation: | Manual Type |
| Speed: | Normal Type Circuit Breaker |
| Arc-extinguishing Medium: | Vacuum |
| Installation: | Fixed |
| Structure: | Recloser |
| Samples: |
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| Customization: |
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outdoor high voltage vacuum circuit breaker
Description:
The product has excellent breaking performance. It adopts compressed air arc chamber with long electric life. It can continuously break 40ka short circuit current for 20 times underrated voltage without maintenance or replacement of sulfur hexachloride gas. It has high mechanical reliability and mechanical life of more than 10000 times. It can be operated frequently; Each set can be equipped with 12 current transformers for users to choose. The product adopts a new type of MKZMSF6 pointer densimeter, and the reading of the pressure gauge is not affected by the temperature change, so it is easy to use
This type of circuit breaker is a three-phase AC50 Hz outdoor high-voltage electrical equipment, which is suitable for the control and protection of 40.5 kV power distribution system. It can also be used for connecting circuit breaker and switching capacitor bank. This product is equipped with CT14 spring machine. The circuit breaker meets the requirements of national standaroGB1984-1989 "AC high voltage circuit breaker" and IEC 56, IEC 62271-100 "high voltage AC circuit breaker".
| The main characteristics of circuit breaker |
| Excellent braking performance, use vacuum arc, high breaking capability, mechanical life of up to 10000 times, has the advantages of simple structure, free maintenance, no maintenance cycle long; good insulation performance, good anti-contamination ability; can be installed current transformer according to customer requirements, the measurement accuracy up to0.2 class, can realize the three-phase interactive protection. |
| Project | Unit | Parameter | |||
| Rated voltage | kV | 24 | 36 | 40.5 | |
| Rated insulation level | Lightning impulse withstand voltage (full wave peak) |
kV | 150 | 170 | 210*/215(fracture)185 |
| Power frequency withstand voltage (1 minute) |
kV | 65 | 75 | 95 | |
| Rated current | A | 1250/1600/2000/2500 | |||
| Mechanical life | time | 10000 | |||
| SF6 gas rated pressure (25 gauge pressure) | MPa | 0.45 | |||
| Blocking pressure (time gauge pressure) | Mpa | 0.40 | |||
| Maximum 4 ºC ambient temperature | ºC | -30 | |||
| Rated short circuit breaking current | kA | 20/25/31.5/40 | |||
| Rated short circuit making current (peak value) | kA | 50/63/80/100 | |||
| Rated short time withstand current (thermal stability current) | kA | 20/25/31.5/40 | |||
| Rated peak withstand current (dynamic stability current) | kA | 50/63/80/100 | |||
| Rated out of step breaking current | kA | 50/63/80/100 | |||
| Rated short circuit duration | s | 4 | |||
| Closing time (at rated operating voltage) | ms | ≤80 | ≤80 | ≤100 | |
| Opening time (under rated operating voltage) | ms | ≤65 | ≤65 | ≤70 | |
| Rated operating sequence | 0-0.3s-CO-180s-CO | ||||
| Rated switching current of single capacitor bank | A | 400 | |||
| Annual air leakage rate | %/year | ≤1 | |||
| Water content of SF6 gas (at 20 ºC) | PPm(V/V) | ≤150 | |||
| Rated operating voltage of ct14 spring operating mechanism | V | DC:110,220 AC; 110, 220,380 | |||
| Closing coil and breaking coil voltage | V | DC:110,220 AC; 110, 220,380 | |||
| Voltage of energy storage motor | V | AC:220 DC:220 | |||
| Closing speed | m/s | 3.2 ± 0.2 | 3.2 ± 0.2 | 3.2 ± 0.2 | |
| Opening speed | m/s | 3.4±0.2 | 3.4±0.2 | 3.4±0.2 | |
| Weight of sulfur hexafluoride gas | kg | 7-8 | |||
| Weight of circuit breaker (including operating mechanism) | kg | 800/900/1400 | |||
| 1. Ambient temperature: upper limit +40ºC, lower limit -30°; Days difference does not exceed 32K |
| 2. Altitude: 1000m and the following areas |
| 3. Wind pressure: not more than 700Pa (corresponding to the wind speed 34m/s) |
| 4. Air pollution level: IV class |
| 5. Earthquake intensity: do not exceed 8 degree |
| 6. Ice thickness: no more than 10mm |
Zhejiang ZheGui Electric Co., Ltd established in 2013. We are located in Zhejiang with convenient transportation access and developed electrical market. We are group of private enterprises that hold the production license issued by the former ministry of energy and ministry mechanical and electrical engineering.
The company has nearly 60 million fixed assets and more than 60 employees, covering 23133 square meters. We are specialized in R&D production of complete switchgear of high and low voltage equipment such as prefabricated substation, distribution cabinet/box, drawer cabinet, ring network cabinet, inflatable cabinet, etc.
We own three CNC bending machines, CNC shearing machines, CNC laser cutting machines and a series of advanced production equipment to further optimized the product structure and improve the efficiency of production. After nearly 7 years of development, it has passed ISO 9001-2000 quality system certification. All items produced by our own factory, so our advantages are: reliable quality and reasonable price. Gather the world's energy to delight your business. It's honorable for Zhegui to share your progress, brilliance and success!
Q3: When can I get the price?
A3:Usually we quote within 24 hours after we get your inquiry.
Q5: What is the price of shipping?
A5: Depending upon the port of delivery, prices vary.
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