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KYN28-22
KYN28-22 Indoor Metal – Clad Withdrawable Switchgear
The 22kV indoor metal armored movable switchgear is a high-end ultra-high voltage equipment designed for domestic ultra-high voltage matching and heavy industrial scenarios. It complies with GB/T 3906-2020, DL/T 404-2018, and IEC 62271-200 standards and is suitable for ultra-high voltage substation matching, heavy metallurgy, large-scale energy storage bases, and other scenarios. The equipment adopts an ultra-high voltage reinforced armor structure, focusing on optimizing insulation performance, mechanical strength, and ultra-high voltage collaborative adaptation capability. It has the characteristics of sufficient parameter redundancy, ultimate safety protection, and high intelligence, which can achieve precise distribution and stable operation of electrical energy in ultra-high voltage supporting scenarios.
Features
1. Ultra high voltage collaborative adaptation, excellent grid connection performance:
optimized design for domestic ultra-high voltage distribution networks, supporting seamless integration with ultra-high voltage converter stations and substations, with voltage synchronous regulation and reactive power collaborative compensation functions, can accurately respond to the operation fluctuations of ultra-high voltage systems, and ensure grid connection stability.
2. Heavy duty condition enhancement, ultimate impact resistance:
The cabinet adopts thickened alloy steel plates and integrated welded frames, with a mechanical strength 50% higher than conventional products, which can withstand the strong impact and vibration loads of heavy metallurgical equipment. At the same time, it has excellent grounding shielding performance, eliminating the risk of high-voltage leakage.
3. Full dimensional intelligent monitoring, accurate fault prediction:
integrating multi-dimensional monitoring modules such as partial discharge, insulation, temperature, mechanical characteristics, etc., analyzing equipment operation data through AI algorithms, potential faults can be predicted 72 hours in advance, and operation and maintenance plans can be automatically generated to achieve accurate fault location and early disposal.
4. Low loss and energy-saving, suitable for green industry:
The core components are selected as ultra-low loss vacuum circuit breakers and transformers, which reduce the overall no-load loss by 25% and load loss by 18% compared to conventional 20kV products. At the same time, the optimized heat dissipation structure reduces energy consumption, meeting the requirements of national dual carbon and green industry.
5. Customized integration, high-end scenario adaptation:
Cabinet layout, protection logic, and monitoring functions can be customized according to the needs of ultra-high voltage matching, energy storage bases, and other scenarios. It supports docking with energy storage control systems and industrial DCS systems to achieve personalized power distribution needs.
The product has a rated current of 2000A-4000A, a short-circuit breaking capacity of 80kA-100kA, and a rated short-time withstand current of 100kA (3s); Support full vacuum circuit breaker configuration, with standard permanent magnet operating mechanism; The default protection level is IP54, which can be upgraded to IP65. For metallurgical scenarios, a high-temperature resistant version can be customized; The intelligent module supports IEC 61850-9-2 and GB/T 19582 standards and can be connected to the national power grid dispatch platform; Provide ultra-high voltage matching certification, energy-saving certification, and a complete set of testing reports.
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Specification
| PROJECT | UNIT | DATA | |
| Rated voltage | kV | 22 | |
| 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 differences in domestic scene adaptation between 22kV switchgear and 20kV products?
The 22kV model focuses on domestic ultra-high voltage matching and heavy industry, strengthening the coordination and impact resistance of ultra-high voltage; The 20kV model focuses on high-end overseas scenarios and is compatible with multiple standards. There are significant differences in the regions and scenario types that the two are suitable for, while the 22kV model is more suitable for high-end heavy-duty scenarios in China.
How does the anti high temperature version cope with the high temperature environment in metallurgical scenarios?
The anti high temperature version adopts high temperature insulation materials and optimized heat dissipation design. The cabinet is equipped with a dual heat dissipation system of forced air cooling and water cooling, which can operate at full load in a high temperature environment of 60 ℃. The core components can withstand temperatures up to 85 ℃ and are fully suitable for high-temperature working conditions in metallurgical scenes.
What is the accuracy and false alarm rate of AI fault prediction?
The accuracy of AI fault prediction is over 98%, with a false alarm rate of less than 0.5%. Through massive working condition data training and algorithm optimization, it can accurately distinguish between normal fluctuations and hidden faults. At the same time, it supports manual review and calibration, further reducing the risk of false alarms.
Can it adapt to the charging and discharging fluctuations of large energy storage bases?
Sure. The equipment is equipped with a dedicated energy storage protection module that supports wide range charging and discharging current adaptation. It can automatically adjust the output voltage and power factor, respond in real-time to the charging and discharging fluctuations of the energy storage battery, avoid the impact of fluctuations on the distribution system, and ensure the stable operation of the energy storage base.
Do additional equipment need to be configured to interface with the ultra-high voltage system?
No additional configuration required. The device is equipped with a dedicated module and communication protocol for ultra-high voltage docking, which can directly dock with ultra-high voltage converter stations and substations. It supports data sharing, collaborative regulation, and protection linkage, and only needs to check parameter matching to complete the docking.
Related Applications
Supporting distribution of ultra-high voltage substations: As the core distribution equipment on the medium voltage side of domestic ultra-high voltage substations, it adapts to the supporting distribution needs of ultra-high voltage transmission. The ultra-high voltage collaborative adaptation function can accurately respond to the operation fluctuations of the converter station, and the intelligent monitoring system ensures the stable operation of the equipment under ultra-high voltage working conditions, helping to ensure the safety of the ultra-high voltage power grid.
Large metallurgical joint ventures: supplying power to heavy equipment such as blast furnaces, converters, and continuous casting machines in large steel and non-ferrous metal joint ventures. The reinforced structure can withstand strong impacts and high temperature environments in metallurgical production, and the low loss design can reduce energy consumption costs and ensure continuous and stable metallurgical production.
Large scale energy storage base: used for the core distribution of domestic gigawatt level energy storage bases, adapted to the high-frequency charging and discharging fluctuations of energy storage batteries, supports linkage with energy storage control systems, achieves precise control of the charging and discharging process, and improves the energy utilization efficiency of energy storage bases with low loss characteristics.
High end chemical new material park: adapted to the core power distribution of high-end chemical new material parks, providing power for precision chemical equipment such as polymerization and distillation. Full dimensional intelligent monitoring can handle faults in advance, avoid unplanned shutdowns, and ensure the continuity and product accuracy of new material production.
