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12KV Indoor Medium Voltage Vacuum Circuit Breaker

12KV Indoor Medium Voltage Vacuum Circuit Breaker

12KV Indoor Medium Voltage Vacuum Circuit Breaker is a high-voltage solution for indoor applications, featuring a rated voltage of 12KV and a frequency of 50Hz for three-phase AC systems. This product, known for its reliability, complies with the GB1984-89 standard. The design of this product is available in two configurations: the switch body and operating mechanism are integrated, and a modular version where the switch body and operating mechanism are separate. The integrated design is denoted as the ZN28-12 type, while the modular design is referred to as the-12 type, suitable for use in fixed switches such as GG-1A(Z) and XGN2A10(Z). This product can be paired with DC electromagnetic types CD17 and CD10A, as well as spring energy storage types CT17 and CT19.

Model:ZN28-12

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Product Description

Product Details

disconnector

Workshop

package

About us

Kesion Electric Technology Co., Ltd. is a leading company situated in Shenzhen, a vibrant city epitomizing China's reform and open-door policy. Since our establishment in 2016, we have operated from an expansive 11,000-square-meter facility, achieving an annual output value exceeding 90 million yuan. Our workforce of over 100 employees, including 30 skilled engineers and technical experts, enables us to produce more than 3,600 sets of medium-voltage switchgear per year. Throughout the years, our unwavering commitment to developing a comprehensive range of products has set us apart. Our offerings encompass 35kv gas-insulated switchgear (C-GIS and GIS) with current ratings from 630A to 3150A, in addition to circuit breakers, disconnectors, isolating mechanisms, modular controllers, enclosure sheet metal, and busbar systems. We are proud to be at the forefront of technological advancement, utilizing the latest tools and techniques to ensure the quality and reliability of our products.

Moreover, we specialize in 35kV substations, 110kV GIS, 35kV Cable Branch cabinets, 35kV transformers, and 35kV prefabricated substations. Our lineup also features fully insulated and fully enclosed permanent magnet ring main units (research and development products) and environmentally friendly gas ring main units. As a result, all our products are designed, developed, manufactured, marketed, and supported by a reputable power equipment manufacturer. Our company has established a robust management system in accordance with the GB/T standard for performance, company management, and safety production. Safety remains our top priority, and we take pride in housing a technology research and development center with exceptional technical capabilities. Embracing lean production and the fusion of informatization and industrialization, we have developed an advanced production manufacturing system. Our comprehensive range of production and testing equipment includes CNC punching machines, laser cutting machines, robotic welding, automated assembly lines, power frequency withstand voltage devices, shielding partial discharge devices, and vacuum box-type helium leak detection systems. Thanks to our dedication to quality and customer service, our products hold numerous domestic and international certifications and are renowned for their excellence and services worldwide. This has solidified our position as a key strategic partner for numerous reputable manufacturers. With a dedicated technical team and attentive marketing services, we steadfastly uphold the principles of "leading with technology, quick response, and safe electricity use." Our unwavering commitment to cutting-edge technology, competitive pricing, and sincere pre-sales and after-sales services have earned us the trust and admiration of our customers.

Overview

The ZN28-12 series vacuum circuit breaker, designed for high-voltage indoor use, features a rated voltage of 12KV and operates at three-phase AC 50Hz. Compliant with the GB1984-89 standard, this product prioritizes safety with its two structural variations: integrated installation of the switch body and operating mechanism and separate installation of these components. The ZN28-12 basic type has an integrated structure, while the ZN28A-12 type has a split structure suitable for fixed switch cabinets like GG-1A (Z) and XGN2A10 (Z). Additionally, this product can be equipped with DC electromagnetic operating mechanisms (CD17, CD10A) and spring energy storage operating mechanisms (CT17, CT19), further enhancing its safety features..

Basic infomation



Service and Installation Conditions

1. Ambient temperature:-15℃-+40℃

2. Relative humidity:The average humidity of a day should be no more than 95%. The average humidity of a month should be no more than 90%.

3. Earthquake intensity: not exceed 8 degrees.

4. The height above sea level:≤1000 m (Except special requirements)

5. It should be installed in the places without fire, explosion, serious filth, and chemical erosion and violent vibration.

Main parameters

Structure diagram


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