Basic Info.
Model NO.
35kv/38kV/40.5KV
Breaking Capacity
High Voltage Circuit Breakers
Speed
Normal Type Circuit Breaker
Arc-extinguishing Medium
Vacuum
Structure
3 Poles Outdoor
Function
Circuit-Breaker Failure Protection, Overcurrent Protection, OVP(Overvoltage Protection)
Certification
Nkautomatic
Specification
permanent magnet operation
Product Description
NKZW32-/35kv/38kV/40.5KV intelligent permanent magnet split circuit breaker OEM/ODM (three-phase one permanent magnet operating mechanism) all accessory poles/ mechanism/driver/controller/FTU/RTU The NKZW32-40.5 outdoor column permanent magnet solid-sealed vacuum circuit breaker is composed of a uniquely designed permanent magnet mechanism and a highly reliable intelligent controller. The device is mainly used in the medium-voltage overhead line power grid, and is used for dividing and combining load current, overload current and short-circuit current, and has 0~3 times automatic reclosing. NKZW32-40.5 outdoor high-voltage permanent magnet vacuum circuit breaker can be used as the main transformer 35kV/38KV incoming line, tie line or other 35kv/38KV line switch of substation, or as an on-column switch of distribution network.The product integrates measurement, control, protection, communication and other functions into one, and has a high degree of intelligence. It is the first choice for realizing distribution network automation and miniaturization of substations.Extremely high reliabilityComplete maintenance free throughout the lifeHigh mechanical life and electrical lifeThe machine is small in size and light in weight, easy to installWith standard relay protection and fast auto-reclosing functionMain technical parameters of the circuit breakerSerial number | Project | unit | Value | 1 | Rated voltage | kV | 40.5 | 2 | Rated current | A | 1250/1600 | 3 | Rated frequency | Hz | 50 or 60 | 4 | Power frequency withstand voltage 1min (wet) (dry) | kV | 80/95 | 5 | Lightning impulse withstand voltage (peak) | kV | 185 | 6 | Rated short-circuit breaking current | kA | 25/31.5 | 7 | Rated short circuit closing current (peak) | kA | 63/80 | 8 | Rated peak withstand current | kA | 80 | 9 | 4S short-time withstand current | kA | 31.5 | 10 | Rated operating cycle | | Points -0.1s - combined -3s - combined - 6s combined - 60s recovery | 11 | Rated short circuit current breaking times | Times | 30 | 12 | Mechanical life | Times | 20000 | 13 | Permanent magnet mechanism control voltage | V | DC220/380 | 14 | Secondary circuit 1min power frequency withstand voltage | KV | 2 | Main mechanical parameters of the circuit breakerSerial number | parameter name | unit | Data | 1 | Contact opening distance | Mm | 18±1 | 2 | Contact overtravel | Mm | 3±0.5 | 3 | Opening speed | m/s | 1.4-1.8 | 4 | Closing speed | m/s | 0.4-0.8 | 5 | Contact closing bounce time | Ms | ≤5 | 6 | Interphase center distance | Mm | 460±2 | 7 | Three-phase switching | Ms | ≤2 | 8 | Conductive loop resistance of each phase | μΩ | <120 | 9 | Closing time | Ms | 25~45 | 10 | Opening time | Ms | 20~45 | 11 | weight | Kg | 295 | Ambient air temperature: -30 ° C ~ +60 ° C;Altitude: no more than 2000 meters;The wind speed does not exceed 34m/s;Vibration or ground motion from outside the switchgear and control equipment is negligible;Pollution level: Grade IV;Storage temperature -40 ° C ~ +85 ° C. Need to configure high voltage side voltage transformer + column type boundary permanent magnet controller to usePermanent Magnet controller Outdoor high voltage 40.5KV PT |
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Address:
Dalong Streedt Development Road, Panyu Distric, Guangzhou City P. R. China, Guangzhou, Guangdong, China
Business Type:
Manufacturer/Factory
Business Range:
Auto, Motorcycle Parts & Accessories, Electrical & Electronics, Health & Medicine, Industrial Equipment & Components, Instruments & Meters, Lights & Lighting, Manufacturing & Processing Machinery, Metallurgy, Mineral & Energy, Security & Protection, Tools & Hardware
Company Introduction:
"people-oriented, winning with quality" is the company′s operating philosophy, "a leading science and technology, customer service" for business purposes, to "attaches great importance to product quality, professional spirit, firm and indomitable, team cooperation" as the enterprise spirit. The company will always take the market as the guidance, take the customer demand as the center, struggling to forge ahead, strive to explore the development, production of new and high technology products more, better, for the majority of customer service.