Basic Info.
Breaking Capacity
High Voltage Circuit Breakers
Speed
Normal Type Circuit Breaker
Function
Conventional Circuit Breaker, Circuit-Breaker Failure Protection, Overcurrent Protection
Applicable Altitude
2000 Meters Below
Mechanical Life
10,000 Times
Transport Package
Wooden Box
Origin
Yueqing City, Zhejiang Province, China
Product Description
Certifications
The company's main products
Zhejiang Maiyu Electric Co. , Ltd. is a professional manufacturer, high voltage vacuum circuit breaker series, indoor high voltage vacuum circuit breaker series, load switch series, lightning arrester series, high
voltage disconnector series, drop fuse series, grounding switch series, cable box series and other
electrical equipment companies, the company is composed of a group of people engaged in electrical
industry for many years, with professional technical research and development and product sales team,
perfect production equipment, integrity management, strict quality
Product DescriptionOverview: Zn63 (VS1) - 12 series indoor handcart type high voltage vacuum circuit breaker is an indoor switchgear with three-phase AC 5ohz and rated voltage of 12kV. It can be used for the control and protection of industrial and mining enterprises, power plants, substations and electrical facilities, and is suitable for places with frequent operation. The operating mechanism is integrated with the circuit breaker body, which can be used as a fixed installation unit or a special propulsion mechanism to form a handcart unit. The main circuit part can adopt the integral fixed sealing pole to realize the miniaturization, high reliability and maintenance free of the circuit breaker. It can be equipped with kyn28a-12 (GZS) and other middle mounted handcart type switchgear, and the fixed type can also be used for XGN series fixed switchgear.Use environmental conditions:A, ambient air temperature: upper limit +40. Lower limit-15 DEG c;B, altitude: less than 1000m (for higher altitude, is rated insulation level increase);C, and amplitude: the earthquake intensity is not more than 8 degrees;The daily average value ofD, and air relative humidity≤95%, and the average monthly value≤90%E, fire, explosion, danger, serious pollution, chemical corrosion and violent vibration.The main technical parameters : | serial number | Projects | unit | data |
| 1 | Rated voltage | KV | 12 |
| 2 | Maximum operating voltage | KV | 12 |
| 3 | Current rating | A | 630
1250 | 630,1250
1600,2000
2500,3150 | 1250,1600
2000,2500
3150,4000 |
| 4 | Rated short-circuit breaking current (rated thermal stability current - RMS) | KA | 20/25 | 31.5 | 40 |
| 5 | Rated short-circuit closing current (peak) | KA | 50/63 | 80 | 100 |
| 6 | Rated Peak Withstand Current (Rated Thermal Stability Current - RMS) | KA | 50/63 | 80 | 100 |
| 7 | 4S rated short-circuit withstand current | KA | 20/25 | 31.5 | 40 |
| 8 | Rated insulation level | Working withstand voltage (before and after rated breaking) 1min power frequency withstand voltage | KV | To the ground 42 (fracture 48) |
| Edge horizontal impulse withstand voltage (before and after rated breaking) / rated lightning impulse withstand voltage peak | To the ground 75 (fracture 85) |
| 9 | Rated thermal settling time | S | 4 |
| 10 | Rated sequence of operations | | Minutes - 0.3S-combines-180S-combines |
| 11 | Mechanical life | times | 10000 |
| 12 | Rated number of short-circuit interrupting currents | times | 50 |
| 13 | Rated closing voltage of operating mechanism (DC) | V | AC,DC110,220 |
| 14 | Ratde, Openin, Voltaji, Ben, Opelatin, Mechanism (DE) | V | AC,DC110,220 |
| 15 | Contact opening distance | mm | 11±1 |
| 16 | Overtravel (contact spring compression length) | mm | 3.5±0.5 |
| 17 | Three-phase splitting, closing bounce time | Ms | ≤2 |
| 18 | Contact closing bounce time | MS | ≤2 |
| 19 | Average opening speed | m/s | 0.91.2 |
| 20 | Average closing speed | m/s | 0.59.8 |
| 21 | Opening time | at the highest operating voltage | S | ≤0.05 |
| at the lowest operating voltage | ≤0.08 |
| 22 | Closing time | S | 0.1 |
| 23 | The resistance of the main loop of each phase | μΩ | 630≤50 | 1250≤45 |
| 24 | Static and dynamic contacts allow for wear and accumulated thickness | mm | 3 |
Address:
Address
Business Type:
Manufacturer/Factory
Business Range:
Electrical & Electronics
Management System Certification:
ISO 9001
Company Introduction:
Zhejiang Maiyu Electric Co., Ltd. Was established in 2015, with a development strategy of "building a technology-based, innovative, outward oriented, and diversified strong enterprise. ". The company relies on independent technology and focuses on exploring the manufacturing field of high and low voltage electrical appliances. Its leading products include (intelligent) high voltage vacuum circuit breakers, user boundary switches, vacuum load switches, isolation switches, fuses, lightning arresters, composite insulators, high and low voltage switchgear, building electrical appliances, etc; The product is widely used in fields such as power grids, power plants, power stations, petrochemicals, metallurgy, coal, railways, transportation, communication, and urban infrastructure. As a system service provider for State Grid and Southern Power Grid,
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