ZN85-40.5 permanent magnet vacuum circuit breaker
Magnetic Field Excitation: Permanent Magnet Excitation
Circuit Breaker Structure: Upper and Lower Layout
Permanent Magnet Material: NdFeB (Neodymium Iron Boron)
Operating Mechanism: Spring Mechanism
Production Introduction
High-voltage products, please look for well-known and reliable brands to avoid harm! Shaanxi Huadian, the quality is trustworthy!
ZN85-40.5 Magnet Vacuum Circuit Breaker is jointly designed and produced by our company and Xi'an High Voltage Electrical Apparatus Research Institute. Reliable products with smaller size and longer service life.
SCOPE OF APPLICATION:
This product is suitable for indoor high-voltage equipment with rated voltage of 40.5kV and three-phase AC 50Hz. It can be used by industrial and mining enterprises, power plants and substations to divide and combine load current, overload current and short-circuit current, and is suitable for occasions of frequent operation.
CIRCUIT BREAKER STRUCTURE:
The ZN85-40.5 Magnet Vacuum Circuit Breaker is mainly composed of the main circuit, the vacuum interrupter, the insulation part and the operating mechanism part.
FEATURES AND TECHNICAL PARAMETERS:
The ZN85-40.5 Magnet Vacuum Circuit Breaker is a high-voltage vacuum circuit breaker developed by Shaanxi Huadian Electric Co., Ltd. It has the advantages of environmental protection, energy saving, high reliability, miniaturization, modularization, long life, maintenance-free, intelligent and representative.
High Reliability:
Reduce assembly and debugging links, improve mechanical reliability, increase main circuit creepage distance, improve external insulation level and arc extinguishing and anti-pollution abilityThe permanent magnet switch has double operating mechanism and double insurance, which is more safe and reliable.
Miniaturized:
Using epoxy resin as the insulating medium, the phase spacing is much smaller than the traditional one, which reduces the short-circuit volume.
Long service life：
The permanent magnet mechanism is more than 100,000 times, which is suitable for frequent operation places.
Maintenance free:
The key parts are made of alloy materials, and the surface treatment of all materials is made of nickel-phosphorus alloy technology and will never rust. Due to the high reliability of mechanical properties and the solid sealing of the arc extinguishing chamber, it is truly maintenance-free.
Specification
The main technical parameters of circuit breakers：
| No. | Item | Unit | Data | ||
| 1 | Rated Voltage | Kv | 40.5 | ||
| 2 | Rated Insulation(1min power frequency withstand voltage) | Kv | 95 | ||
| 3 | Rated Insulation(Rated lightning impulse withstand voltage) | A | 185 | ||
| 4 | Rated Frequency | Hz | 50 | ||
| 5 | Rated Current | A | 630 / 1250/ 1600 / 2000 / 2500 | ||
| 6 | Rated Short-circuit Breaking Current | Ka | 25 / 31.5 | ||
| 7 | Rated Peak Withstanding Current | Ka | 63 / 80 | ||
| 8.a | Rated short-circuit making current | Ka | 63 / 80 | ||
| 8.b | Rated Short-circuit Current Breaking Times | F | 20 | ||
| 9 | Breaking Time | ms | ≤80 | ||
| 10 | Rated Thermal Stabilization Time | s | 4 | ||
| 11 | Rated Sequence of Operations | / | O-0.3s-CO-180s-CO | ||
| 12 | Rated Operating Voltage | V | AC110 / AC 220 / DC110 / DC 220 | ||
| 13 | Rated Working Current of Closing and Opening Coil | / | 1.05(110V) / 0.96(220V) | ||
| 14 | Phase Center Distance | mm | 300±1.5 / 380±1.5 / 440± 1.5 | ||
| 15 | Allowable Wear Thickness of Contacts | mm | ≤3 | ||
| 16 | Main Circuit Resistance for Each Phase | μΩ | ≤80 (≤1250A)/ ≤60 (≥1600A) | ||
| 17 | Mechanical Lifetime | F | 30000 | ||
Prodection details
Product Outline and Installation Dimensions:
(Unit:mm)
Technical requirements：
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Circuit breaker distance 22±2mm, overtravel 75±15mm.
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Closing speed 0.65±0.15m/s,Opening speed 1.8±0.2m/s.
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Circuit breaker resistance ≤60μΩ.
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Switching coil current 0.96A(220V),1.05A(110V).
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Screw-in distance 600mm.
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The plug is on the left side of the product, and the cable length is 700mm.
Company Profile
Shaanxi Huadian Electric Co., Ltd. is an intelligent technology enterprise engaged in the R&D, manufacturing and sales of power transformers, high and low voltage switch cabinets, box-type substations and supporting products.
The factory covers an area of nearly 100,000 square meters, with a registered capital of 45 million yuan. There are more than 200 employees, 20 party branch members, nearly 20 engineers, and nearly 50 technicians with intermediate technical titles.
Relying on domestic advanced technology and production and testing equipment, the company adopts computer-aided design in accordance with the operating standards of the ISO9000 quality certification system to provide customers with high-quality products that are environmentally friendly, energy-saving and low-carbon in line with the characteristics of each region to meet the needs of the market and different customer request.
The main product "VEGM" brand circuit breakers meet the national requirements and provincial technical standards. The marketing and service network is all over the world, which can guarantee to provide customers with fast and high-quality services. The company adheres to the principle of "reliable product quality, high-quality price, perfect after-sales service, excellence and perfection.
Production Workshop
Prodect qualification
Certifications
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