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KYN28-20
KYN28-20 Indoor Metal – Clad Withdrawable Switchgear
The 20kV indoor metal armored withdrawable switchgear is an ultra-high voltage equipment designed for high-end industrial and new energy scenarios worldwide. It complies with GB/T 3906-2020, IEC 62271-200, and ANSI C37.20.7 standards and is suitable for high-end scenarios such as overseas large-scale petrochemicals, cross-border power grid connections, and large-scale new energy bases. The equipment adopts an ultra-high voltage composite insulation armor structure, integrating intelligent monitoring, global standard compatibility, and ultra large load adaptation technology. It has the characteristics of excellent rated parameters, ultimate safety performance, and low life cycle cost, and can achieve efficient transmission, intelligent regulation, and fault prediction of ultra-high voltage electrical energy.
Features
1. Global multi standard compatibility, overseas high-end adaptation:
Simultaneously meeting the three major system standards of national standard, IEC, and ANSI, it can customize 50Hz/60Hz frequency, different wiring methods, and instrument configurations, adapting to most high-end industrial projects in Europe, America, the Middle East, and other regions around the world, without the need for additional modifications to land.
2. Ultra large load redundancy, top-notch parameter performance:
rated current can reach 2500A-4000A, short-circuit breaking capacity of 80kA-100kA, short-term withstand current of 80kA (3s), with sufficient parameter redundancy, suitable for ultra large petrochemical plants, cross-border power grid connections and other ultra large load scenarios.
3. Breakthrough in composite insulation and ultra-high voltage safety guarantee:
Adopting solid insulation+SF6 mixed insulation technology, the insulation level reaches 50kV level, greatly reducing the cabinet volume. At the same time, equipped with multi-dimensional online monitoring systems for partial discharge, insulation, and temperature, real-time warning of safety risks and prevention of ultra-high voltage failures.
4. Intelligent collaborative regulation and adaptation to new energy grid connection:
It can seamlessly integrate with wind power, photovoltaic, and energy storage systems, support wide voltage input and reactive power compensation, and has the ability to adapt to new energy generation fluctuations. It can achieve multi energy collaborative regulation and ensure grid stability.
5. Global operation and maintenance support, high-end service adaptation:
providing global parts warehousing and 24-hour multilingual technical support, equipped with an overseas on-site engineer team, can provide customized operation and maintenance solutions and full lifecycle technical services, adapted to the operation and maintenance needs of overseas high-end projects.
The product supports SF6 insulated circuit breaker or full vacuum circuit breaker configuration, with optional permanent magnet operating mechanism, and a mechanical life of up to 150000 times; The default protection level is IP54, which can be upgraded to IP65. Explosion proof scenarios can be customized with Ex d IIC T4 explosion-proof type; The intelligent module supports IEC 61850-9-2 and DNP3.0 high-speed communication protocols, achieving millisecond level data exchange; Provide global certifications such as UL, CE, ANSI, and national level type test reports to meet the requirements for high-end project access.
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Specification
| PROJECT | UNIT | DATA | |
| Rated voltage | kV | 20 | |
| Rated frequency | Hz | 50 | |
| The rated current of the main bus | A | 630/1250 | |
| Current rating | A | 630/1250 | |
| Ground Loop Rated Short-Time Withstand Current (2S) | kA | 31.5 | |
| Rated short-time withstand current of main circuit (4S) | kA | 25/31.5 | |
| Rated peak withstand current (peak) | kA | 63/80 | |
| Rated short-circuit interrupting current | kA | 25/31.5 | |
| Rated insulation level | 1 minute power frequency withstand voltage | kV | intermittent to the ground: 50 |
| Fracture: 60 | |||
| Withstand voltage for lightning impulses | kV | intermittent to the ground: 125 | |
| Fracture: 145 | |||
| Ingress protection | The shell is IP4X | ||
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FAQs
What are the core positioning differences between 20kV switchgear and 17.5kV products?
The 20kV model is positioned as a global high-end ultra large load and new energy scenario, focusing on multi standard compatibility and ultra large parameter redundancy; The 17.5kV model focuses on railway traction scenarios in specific overseas regions and is positioned in the mid-range specialized market, with significant differences in target scenarios and levels between the two.
How to choose between SF6 mixed insulation and full vacuum insulation?
SF6 mixed insulation can be selected for enclosed spaces and ultra-high voltage scenarios, with better insulation performance and smaller volume; High environmental requirements, frequent operation scenarios can choose full vacuum insulation, no risk of SF6 gas leakage, more convenient maintenance, and can be customized according to project needs.
How to ensure the stability of power supply in cross-border power grid interconnection?
The device is equipped with a dedicated protection module for power grid connection, which supports frequency and voltage adaptive adjustment, has fast synchronization and grid connection function, and can respond to fluctuations in the power grid on both sides in real time. At the same time, it is equipped with a fault self-healing system to ensure rapid isolation in case of contact line faults, without affecting the independent operation of the power grid on both sides.
Which regions are covered by global accessory warehousing?
Overseas parts warehousing covers four core regions: Europe (Germany), North America (United States), Middle East (United Arab Emirates), and Southeast Asia (Singapore), achieving parts delivery within 48 hours. Remote areas support expedited air delivery to ensure timely supply of parts.
Does the product comply with global environmental standards?
Compliant. The fully vacuum insulated version has no SF6 gas emissions, and the SF6 version adopts a low leakage sealing design with a leakage rate of ≤ 0.1%/year, which meets global environmental standards such as EU RoHS and US EPA, and can be adapted to high-end projects with strict environmental requirements.
Related Applications
Overseas large-scale petrochemical parks: used as the core distribution room for large-scale petrochemical parks in Europe, America, and the Middle East, supplying power to ultra large equipment such as hydrocracking and ethylene plants. Multiple standards are compatible and adapted to the local industrial system, and ultra large parameter redundancy can cope with complex loads in petrochemical production, ensuring continuous production.
Cross border power grid connection node: As the core distribution equipment for cross-border power grid connection, it adapts to the frequency and voltage standards of different national power grids, and its fast synchronous grid connection function can achieve smooth connection between the two power grids. The intelligent protection system ensures the safe and stable operation of the connection line.
Global large-scale photovoltaic base: used for supporting the collection system and booster station of overseas gigawatt level photovoltaic bases. The wide voltage adaptation and reactive power compensation functions can cope with the fluctuation of photovoltaic power generation, and the multi standard compatibility is easy to connect with the local power grid, improving the efficiency of power generation and grid connection.
High end semiconductor industry park: Adapting to the core power distribution of global high-end semiconductor industry parks, ultra-high voltage insulation and low interference design can avoid the impact on precision semiconductor equipment, and intelligent operation and maintenance functions can achieve 24-hour uninterrupted power supply control to ensure semiconductor production accuracy.
