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KYN28-10
KYN28-10 Indoor Metal – Clad Withdrawable Switchgear
10kV indoor metal armored movable switchgear is the core mainstream equipment of domestic medium voltage distribution networks, which complies with GB/T 3906-2020, DL/T 404-2018 and IEC 62271-200 standards. It is widely used in high-voltage distribution scenarios such as urban backbone distribution networks, large industrial enterprises, and high-rise buildings. The equipment adopts a fully sealed armored compartment structure, optimized the design of corona suppression and insulation coordination, and has the characteristics of high rated parameters, stable operation, and strong grid compatibility. It can achieve efficient distribution, precise control, and rapid fault isolation of high-voltage electrical energy, and is suitable for medium and high voltage large capacity, long-distance distribution, and grid connection needs.
Features
1. Grid level adaptation and excellent grid connection performance:
Optimized design for domestic 10kV distribution network standards, with a rated current of 1600A-4000A and a short-circuit breaking capacity of 50kA-80kA, it has complete grid connection protection functions and can be directly connected to urban distribution networks and enterprise owned power plants for grid operation, ensuring stable voltage between the grid side and the user side.
2. Anti corona optimization and high insulation reliability:
Adopting a rounded transition cabinet structure and high-purity insulation material, optimizing the distribution of phase to phase and relative ground electric fields, effectively suppressing high-voltage corona discharge, with an insulation level of 35kV, capable of withstanding power grid disturbances such as temporary voltage rise and fall, lightning overvoltage, etc., and avoiding insulation breakdown faults.
3. Intelligent error prevention, safe and controllable operation and maintenance:
Integrated with mechanical interlocking, electrical interlocking, and intelligent error prevention system, it not only realizes traditional operation interlocking, but also recognizes misoperation intentions through intelligent terminals and actively blocks them. Combined with a visual operation interface, it provides real-time feedback on equipment status and eliminates high-voltage operation risks from the source.
4. Efficient heat dissipation, suitable for full load operation:
Adopting an upper and lower through ventilation structure, equipped with an intelligent temperature control heat dissipation system, the heat dissipation power can be automatically adjusted according to the internal temperature of the cabinet. The core components are selected as temperature resistant upgraded models, which can still operate continuously at full load in a high temperature environment of 45 ℃ without the risk of capacity reduction.
5. Standardized adaptation, convenient transformation and upgrading:
fully following the standard size of domestic 10kV distribution equipment, reserving standardized wiring interfaces and expansion space, can directly replace old 10kV switchgear without the need to renovate the distribution room foundation and distribution circuit, adapting to the upgrading and transformation needs of existing projects.
The product supports vacuum circuit breaker or SF6 circuit breaker configuration, with a rated short-time withstand current of 31.5kA-63kA (3s); The default protection level is IP4X, which can be upgraded to IP54. Coastal areas can customize a salt spray enhanced version; The intelligent module supports IEC 61850 and DL/T 634.5.1-2002 communication protocols and can be connected to the distribution automation systems of State Grid and Southern Power Grid; Provide a complete set of certification certificates such as CQC and type testing to meet the requirements for access to power grid projects.
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Specification
| PROJECT | UNIT | DATA | |
| Rated voltage | kV | 10 | |
| 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: 28 |
| Fracture: 32 | |||
| Withstand voltage for lightning impulses | kV | intermittent to the ground: 75 | |
| Fracture: 85 | |||
| Ingress protection | The shell is IP4X | ||
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FAQs
Can 10kV switchgear and 7.2kV products be mixed in the same distribution system?
It is not recommended to mix them up. There are significant differences in voltage levels, insulation levels, and protection parameters between the two, and mixing them can lead to ineffective protection coordination and increased risk of insulation breakdown. Therefore, it is necessary to configure corresponding equipment according to the rated voltage of the distribution system.
How to ensure grid stability in urban distribution network projects?
The equipment is equipped with a dedicated protection device for the power grid side, which supports functions such as overcurrent, overvoltage, undervoltage, and zero sequence protection. It can quickly respond to power grid fluctuations and has voltage regulation and reactive power compensation capabilities to ensure that there is no impact on the voltage and frequency of the main grid after grid connection.
What is the core difference between the salt spray enhanced version and the regular version?
The anti salt spray version adopts anti-corrosion coating cold-rolled steel plates, stainless steel connectors and seals, and internal components are sprayed with anti salt spray insulation coating. The protection level has been upgraded to IP55, and it can operate for a long time in high salt spray environments along the coast. The service life is extended by 5-8 years compared to the ordinary version.
Does the intelligent error prevention system support remote monitoring?
Support. The intelligent error prevention system can be integrated with remote operation and maintenance platforms to upload real-time operation records, fault alarms, and error prevention status data. Operation and maintenance personnel can remotely view equipment operation permissions, block illegal operation instructions, and adapt to the needs of unmanned distribution rooms.
Does the product meet the bidding standards for power grid projects?
Compliant. The product fully meets the bidding technical requirements of State Grid, Southern Power Grid, and local power grid projects, and has a complete set of certification certificates and testing reports. It can provide targeted bidding technical response documents to assist in winning the project bid.
Related Applications
Urban distribution network backbone line: As the core distribution equipment of the urban 10kV distribution network backbone line, it is used for substation outgoing lines, regional distribution connections, and load distribution. It has strong grid compatibility and can ensure stable supply of electricity for residential, commercial, and public facilities, improving the reliability of power supply in the distribution network.
Large petroleum refining enterprises: Suitable for the power distribution needs of high-power equipment such as hydrogenation units and catalytic cracking units in petroleum refining enterprises, with excellent resistance to corona and high temperature, and can withstand high temperatures and oil and gas environments in refining scenarios. The precise fault isolation function can avoid the expansion of local faults and ensure the continuous operation of refining production.
Core distribution room of super high-rise buildings: used for core distribution rooms of super high-rise buildings such as office buildings, hotels, and complexes. The standardized size adapts to the reserved machine room space of the building, and the intelligent error prevention and stable operation characteristics can ensure uninterrupted power supply for key equipment such as elevators, central air conditioning, and fire protection systems, and meet the electricity demand of high-rise buildings.
Grid connection of self owned power plants by enterprises: Provide grid connection and distribution support for self owned power plants of large enterprises such as steel and chemical industries, with complete grid connection protection and voltage regulation functions, which can achieve smooth grid connection between self owned power plants and urban distribution networks, ensuring internal power consumption of enterprises and feedback excess power to the grid.
Municipal infrastructure distribution: High voltage distribution rooms used for municipal infrastructure such as subways, light rails, and sewage treatment plants, adapted to the continuous operation needs of municipal scenarios. Intelligent operation and maintenance functions facilitate centralized control by municipal departments, reduce operation and maintenance manpower investment, and ensure stable operation of infrastructure.
