Product OverviewThe ZW7-40.5 series outdoor high-voltage vacuum circuit breaker is an outdoor high-voltage switchgear with a three-phase AC 50Hz and a rated voltage of 40.5kV. Equipped with a spring o
Product Overview
The ZW7-40.5 series outdoor high-voltage vacuum circuit breaker is an outdoor high-voltage switchgear with a three-phase AC 50Hz and a rated voltage of 40.5kV. Equipped with a spring operating mechanism or electromagnetic operating mechanism, it can remotely control electric opening and closing, as well as manually store energy on site for manual opening and closing. The design performance meets the requirements of the national standard GB1984 AC High Voltage Circuit Breakers and the requirements of the International Electrotechnical Commission standard IEC62271:100 High Voltage AC Circuit Breakers. The ZW7-40.5 vacuum circuit breaker is mainly used for the control and protection of outdoor 35kV transmission and transformation systems, as well as for the normal operation and short circuit protection of urban and rural distribution networks and industrial and mining enterprises. The overall structure of the product is a porcelain bottle pillar type; The upper porcelain bottle is equipped with a vacuum arc extinguishing chamber, and the lower porcelain bottle is a pillar porcelain bottle. Suitable for places with frequent operations. It has the characteristics of good sealing, aging resistance, high pressure resistance, non combustion, no explosion, long service life, convenient installation and maintenance, etc.
Technical Parameter
| Name | Unit | Data | ||
| Rated Voltage | kV | 40.5 | ||
| Rated Insulation Level | 1Min Power Frequency withstand Voltage | Dry | 95 | |
| Wet | 80 | |||
| Lightning Impulse withstand Voltage(Peak) | 185 | |||
| Rated Current | A | 630; 1250; 1600 ; 2000 | ||
| Rated Short-circuit Breaking Current | KA | 20; 25;31.5; 40 | ||
| Rated Operating Sequence | O-0.3s-C0-180s-CO | |||
| Rated Short-circuit Opening Times | Times | 20 | ||
| Rated Short-circuit Closing Current(Peak) | kA | 50;63;80 | ||
| Rated Peak withstand Current | 20;25;31.5 | |||
| Rated Short Time withstand Current | kA | 31.5 | ||
| Rated Short-circuit Duration | s | 4 | ||
| Average Closing Speed | m/s | 0.7±0.2 | ||
| Average Opening Speed | 1.5±0.2 | |||
| Closing Time | ≤150 | |||
| Opening Time | ≤60 | |||
| Mechanical Life | Times | 10000 | ||
| Rated Operating Voltage and Auxiliary Circuit Rated Voltage | V | AC/DC110/220 | ||
| DC Current Resistance of Each Phase (Without transformer) | μΩ | ≤100 | ||
| Weight | KG | 1100 | ||
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Hebei Liebang Electric Technology Co. LTD was established in 2000, located in Hebei, China, covering an area of 20,000 square meters, is a group integrating R&D, manufacturing, sales and service. Our products cover many fields such as transformers, switch cabinets, electricity meters, wires and cables, and are widely used in construction, energy, communication and other industries.The company has its own technology research and development team. All products can be individually designed according to structural, mechanical and electrical principles. With advanced production equipment, testing equipment, production line and computer network control system, it is a leading domestic power equipment manufacturer in terms of product production, component selection and assembly. It has also passed ISO9001, ISO14001, ISO45001, CQC, test report and other quality system certifications, and the credit rating AAA certificate.We sincerely invite you to visit our factory for guidance and negotiation, and to explore potential cooperation opportunities
