ZN85-40.5 indoor high voltage AC vacuum circuit breakerProduct overviewZN85-40.5 series indoor high-voltage vacuum circuit breaker (hereinafter referred to as the circuit breaker) is suitable for thre
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ZN85-40.5 indoor high voltage AC vacuum circuit breaker
Product overview
ZN85-40.5 series indoor high-voltage vacuum circuit breaker (hereinafter referred to as the circuit breaker) is suitable for three-phase AC 50HZ, rated voltage 40.5kV power system, and can be used as a switching load current, overload current, It is used for fault current and is suitable for frequent operation places.
The circuit breaker and operating mechanism are arranged in an upper and lower structure, which effectively reduces the depth of the circuit breaker. The mechanism design is simple, and the output curve and its performance are more suitable for the characteristics and requirements of the 40.5KV vacuum circuit breaker. The overall layout is reasonable, beautiful, simple, small in size and flexible in operation. It has the characteristics of reliable electrical performance, long service life, convenient maintenance and maintenance-free mechanism.
Standard
1.GB/T 11022-2011 Common specifications for high-voltage switchgear and controlgear standards
2.IEC 62271-2007 High-voltage switchgear and controlgear - Part 1: Common specifications
Operating conditions
1.Ambient temperature: - 40℃-+40℃ (below 35℃ within 24 hours)
2.Relative humidity:≤95% (daily average) or≤90% (monthly average)
3.Altitude: ≤1000m
| NO. | Item | Unit | data | |||
| 1 | Rated voltage | KV | 40.5 | |||
| 2 | insulation level | power frequency withstand voltage(1min) | KV | 95 | ||
| 3 | Rated lighting implus withstand voltage(peak) | 185 | ||||
| 4 | Rated frequency | HZ | 50 | |||
| 5 | Rated current | A | 1250 | 1600 | 2000 | |
| 6 | Rated short-time withstand current 4s | KA | 25 | 31.5 | ||
| 7 | Rated withstand current (peak) | KA | 63 | 80 | ||
| 8 | Rated short circuit breaking current | KA | 25 | 31.5 | ||
| 9 | Rated short-circuit closing current | KA | 63 | 80 | ||
| 10 | Rated operation ranking | O-0.3S-CO-180S-CO | ||||
| 11 | Rated short circuit breaking current breaking times | times | 20 | |||
| 12 | Rated capacitor bank breaking current | A | 20 | |||
| 13 | Mechnical life | times | 10000 | |||
| 1 | Rated contact stroke | mm | 18±1 | |||
| 2 | Contact travel | mm | 5±1 | |||
| 3 | opening time(rated voltage) | ms | 20-50 | |||
| 4 | closing time(rated voltage) | ms | ≤100 | |||
| 5 | contact ersion limit | mm | 3 | |||
| 6 | Average opening speed | m/s | 0.8±0.2 | |||
| 7 | Average closing speed | m/s | 1.8±0.2 | |||
| 8 | Contact bouncing duration at closing contact | ms | ≤3 | |||
| 9 | three-phase non-simultaneity of contact closing | ms | ≤2 | |||
| 10 | Dominant loop resistance | Rated current | μΩ | ≤60 | ||
Installation dimensions
Overall dimension of ZN85-40.5 isolating handcart(cabinet width: 1400mm)
1.1 Technical parameters
| Item | Unit | Reference value | |
| Rated voltage | kV | 40.5 | |
| Rated insulation level | Lightning impulse withstand voltage | kV | 185 |
| 1min power-frequency withstand voltage | kV | 95 | |
| Rated frequency | Hz | 50/60 | |
1.2 Drawing of linkage between the moving contact and the fixed contact
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Packing details
by strong wood box
OEM can be customized as required on the box.
Buy Guide
1.Determine the rated voltage
2.Determine breaking capacity
3.Determine the rated current
4.Determine the installation method (A: handcart type B: fixed type)
5.Determine installation size
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About Us
Chenyuan Electric is a rapidly growing company with over 15 years of experience in the production and service of electrical power equipment. We are your reliable partner in the field of electrical installation equipment!
In 2019, we established a strategic partnership with Schneider Electric. Gradually expanding our production capacity, we provide comprehensive support for business development. Our factory includes multiple automated production workshops and fully equipped warehouse facilities. The modern European equipment installed in our workshops allows us to manufacture products that meet EU standards.
We hold CE, ISO, and EAC certifications. Our company is an official Schneider Electric partner, authorized to sell original equipment and produce Schneider-certified switchgear cabinets.
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In the capital of Uzbekistan, Tashkent, we operate an official representative office (a Chinese company with 100% foreign capital). Our team includes qualified engineers ready to provide prompt consultation and offer optimal one-stop solutions.
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Industry Solutions
We are a key supplier for major state projects, such as the State Power Grid Corporation, the State Railway Administration, and the South-to-North Water Diversion Project. Our products are widely used in power systems, state projects, mining, metallurgy, real estate, and renewable energy sectors. Additionally, our products are exported to countries including Russia, Kazakhstan, Tajikistan, Uzbekistan, and others.
Certifications
All transformers have passed CE, IEC, GOST, and other certifications.
