Fenarro Frzw7 Series Outdoor Vacuum Circuit Breaker High Voltage Auto Recloser

1. PRODUCT OVERVIEWFRZW7 series outdoor high-voltage vacuum circuit breaker is an outdoor high-voltage electrical equipment for dry AC 50Hz and voltage of 40.5kV. It is equipped with a spring operating mechanism or an electromagnetic operating mechanism, which can be remotely controlled for electrically opening and closing, or manually stored for manual opening and closing. The design performance complies with the "National Standard for AC High-Voltage Circuit Breakers" and meets the requirements of IEC-56, the International Electrotechnical Commission standard for AC high-voltage circuit breakers. The FRZW7 series outdoor high-voltage vacuum circuit breaker is mainly used for control and protection in outdoor 35kV power transmission and transformation systems, and can also be used for normal operation and short circuit protection in urban and rural power grids and industrial and mining enterprises. The overall structure of this product is porcelain bushing type, with a vacuum arc extinguishing chamber installed in the upper porcelain bushing and a bushing porcelain bushing in the lower part. It is suitable for places with frequent operations and has advantages such as good sealing, aging resistance, high voltage resistance, non-combustibility, explosion-proof, long service life, and convenient installation and maintenance.2. PRODUCT FEATURE2.1 Using vacuum arc extinguishing technology, this circuit breaker has strong breaking ability and a long electrical lifespan. The mechanical lifespan can reach 10,000 operations.2.2 The structure is simple, requiring no maintenance and having a long inspection interval.2.3 It has excellent insulation performance and a strong ability to resist pollution.2.4 It can be equipped with a spring or electromagnetic operating mechanism, ensuring reliable mechanical performance and frequent operations. There is no risk of fire. It is equipped with internal current transformers, achieving a precision level of 0.2 and enabling three-phase interlocking protection.2.5 It includes a condensation control device, ensuring reliable operation of the circuit breaker under certain temperature and humidity conditions.3. PARAMETERSNO.ITEMUNITVALUE1Rated voltagekV40.52Rated insulation levelPower frequency withstand voltageDry typekV95Wet typekV80Lightning impulse withstand voltage (peak)kV1853Rated currentA1250,1600, 20004Rated short-circuit breaking currentkA20, 25, 31.55Rated operating sequence Opening-0.30 closing/opening -180 closing/opening6Rated short-circuit breaking current frequencytimes127Rated short-circuit closing current (peak)kA50, 63, 808Rated peak withstand currentkA50, 63, 809Rated short-time withstand currentkA20, 25, 31.510Rated short-circuit duration currents411Average opening speedm/s1.5±0.212Average closing speedm/s0.7±0.213Contact closing bounce times≤214Three-phase closing (opening) synchronization time differences≤215Closing times≤15016Opening times≤6017Mechanical lifetimes1000018Rated operating voltage and auxiliary circuit rated voltageVDC/AC220, 110, 2419DC resistance per phase circuit (excluding transformers)μΩ≤10020Allowable wear thickness of dynamic and static contactsmm321Weightkg8004.APPEARANCE AND INSTALLATION DIMENSIONS5. LEAD TIME:The delivery time is usually determined by the type and quantity of the product, typically ranging from 15 to 20 days.6. WHY CHOOSE US?1), Innovation StrengthFenarro has a professional research and development team consisting of over 30 technical engineers. The production design incorporates advanced international technology and is equipped with updated equipment systems. It follows the highest international standards for experiments and has invested over 30 million US dollars in research and development expenses.2), Quality ControlFenarro has over 40 professional testing equipment, 5 production lines, and 2 measurement centers, with strict quality control processes in place to ensure that our products meet international certification requirements.3), Quantity and ProductivityFenarro has six workshops and nearly 230 well-trained employees, with the help of modern automated production lines, our annual production capacity is 150,000 sets of equipment.4), Our ServiceI). By promptly addressing customer inquiries and concerns, we provide a quick response during the pre-sales period to secure the orders and achieve success in the B2B realm.II). Our service is synonymous with excellence throughout the production process. We pride ourselves on our meticulous attention to detail, our team of experienced professionals, effective communication, and unwavering commitment to timeliness.III). Our team of experts is dedicated to solving any issues that may arise after your purchase. We pride ourselves on our prompt and effective communication, ensuring that you are always kept in the loop and informed of any updates or progress.IV). The essence of our warranty program lies in its ability to instil confidence in our customers. By providing a lon