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As a professional manufacturer of electrical equipment, Jinhua Dika Electrical Equipment Co., Ltd. proudly presents our advanced 40.5KV SF6 Gas Insulated Indoor Switchgear Panel, model KYN61. Engineered for reliability and safety in medium-voltage power distribution networks, this switchgear panel is designed to meet the demanding requirements of modern industrial and utility applications. Our commitment to quality, backed by a structured management system, ensures that each unit delivers consistent performance, safeguarding your electrical infrastructure. With extensive experience serving global markets, we understand the critical need for durable and maintenance-friendly equipment. This KYN61 panel represents a robust solution for indoor substations, offering superior arc-quenching capabilities and a compact footprint that optimizes valuable facility space.
The core of this switchgear's performance lies in its use of SF6 (Sulfur Hexafluoride) gas as the primary insulation and arc-quenching medium. SF6 gas possesses excellent dielectric properties, allowing for a more compact design compared to air-insulated alternatives while providing a high level of operational safety. The metal-clad, compartmentalized construction of the KYN61 design ensures complete segregation of functional units—like the circuit breaker, busbars, and cable terminations—enhancing safety during maintenance and operation.
- Enhanced Safety and Reliability: The SF6 gas insulation provides a sealed environment, impervious to dust, moisture, and atmospheric contaminants. This significantly reduces the risk of internal flashovers and insulation degradation, leading to a longer service life and higher system availability. The gas pressure is continuously monitored to ensure integrity.
- Compact and Space-Saving Design: Utilizing the high dielectric strength of SF6 gas allows for a much more compact arrangement of live parts. This results in a panel with a reduced footprint, which is a crucial advantage for indoor switchgear rooms where space is often at a premium.
- Low Maintenance Requirements: The sealed tank system minimizes the need for regular maintenance. There is no contact oxidation or pollution buildup on the contacts within the gas chamber. Maintenance intervals are typically longer than those for air-insulated switchgear, reducing lifecycle costs.
- Quiet and Clean Operation: Operations such as switching and arc interruption occur within the sealed SF6 gas chamber, resulting in minimal acoustic noise and no expulsion of hot gases or particles into the switchgear room, ensuring a cleaner and safer working environment.
- Flexible Configuration: The panel can be configured with various types of circuit breakers (e.g., vacuum circuit breakers within the SF6 gas tank for interruption, or pure SF6 breakers) and can accommodate different protection and control schemes, including standard relay protection or advanced digital substation automation interfaces.
To provide a clear overview of the technical specifications, please refer to the following table for key parameters. Note that specific configurations can be customized upon request to match your project's exact requirements.
| Parameter | Specification / Value |
| Rated Voltage (Ur) | 40.5 kV |
| Rated Frequency | 50 Hz or 60 Hz |
| Rated Normal Current (Ir) | 1250A, 1600A, 2000A, 2500A, 3150A |
| Rated Short-Time Withstand Current (Ik) | 25 kA, 31.5 kA, 40 kA (1s or 3s) |
| Rated Lightning Impulse Withstand Voltage (Up) | 185 kV |
| Rated Power Frequency Withstand Voltage (1 min) | 95 kV |
| Degree of Protection | IP4X (compartment), IP2X (front) |
| SF6 Gas Pressure (at 20°C) | Approx. 0.04 MPa (abs) for insulation |
For our clients, the benefits of choosing this switchgear are substantial. You gain a highly reliable power distribution node that maximizes uptime for critical operations. The reduced physical size translates to potential cost savings on building footprint or allows for capacity expansion within existing spaces. The long maintenance cycles and robust construction directly lower the total cost of ownership over the equipment's lifespan. Furthermore, the inherent safety features protect both personnel and adjacent equipment, making it a responsible choice for any facility manager or electrical engineer.
Jinhua Dika Electrical operates with a firm commitment to quality and consistency, principles reflected in our established management practices. Our products reach diverse international markets, from North America and Europe to Southeast Asia and Africa, demonstrating their adaptability to various grid standards and environmental conditions. We support our clients with flexible shipping options from major Chinese ports. When you select our 40.5KV KYN61 SF6 Gas Insulated Switchgear, you are not just purchasing a component; you are investing in a stable and secure foundation for your electrical distribution system, backed by a manufacturer dedicated to delivering dependable electrical solutions. Contact us today to discuss your specific project needs and receive detailed technical documentation.
Frequently Asked Questions (FAQ)
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Q: What is the primary advantage of SF6 gas insulation over air insulation for indoor switchgear?
A: SF6 gas has a dielectric strength approximately 2-3 times higher than air at the same pressure. This allows for a much more compact design, reducing the overall footprint of the switchgear panel significantly. It also provides a sealed, stable environment that is immune to pollution and humidity, enhancing long-term reliability. -
Q: Is special handling or training required for SF6 gas?
A: While SF6 is non-toxic in its pure state, proper procedures are recommended for handling, particularly during filling, servicing, or end-of-life recycling to prevent release into the atmosphere, as it is a potent greenhouse gas. Our equipment is designed for minimal gas handling during its service life, and we can provide guidance on proper procedures. -
Q: Can this switchgear be integrated with digital substation control systems?
A: Yes. The protection and control cubicle can be equipped with modern numerical relays and communication interfaces (e.g., IEC 61850 protocol) upon request, enabling seamless integration into smart grid and digital substation architectures. -
Q: What are the typical delivery and installation lead times?
A: Lead times vary based on order configuration and quantity. Standard configurations typically have shorter lead times. We provide estimated schedules upon order confirmation and work closely with clients to meet project timelines. Installation should be performed by qualified personnel following our provided manuals. -
Q: How is the SF6 gas pressure monitored, and what happens if there is a leak?
A: The switchgear is equipped with a density monitor (pressure gauge with temperature compensation) that provides a visual indication of gas pressure. It typically has contacts to signal alarm and lockout stages if the pressure falls below pre-set thresholds, preventing unsafe operation. -
Q: What type of circuit breaker is used inside, and what is its maintenance schedule?
A: It commonly uses a vacuum circuit breaker (VCB) housed within the SF6 gas insulation compartment. The combination leverages VCB's excellent interruption performance and SF6's insulation. The maintenance interval for the VCB mechanism is extensive, often reaching 10,000 operations or 10-20 years under normal service conditions. -
Q: Are spare parts readily available?
A: As the manufacturer, we maintain an inventory of critical spare parts for our products. We recommend discussing a long-term service and spare parts agreement to ensure quick availability and support throughout the equipment's operational life. -
Q: What standards does this switchgear comply with?
A> The design and testing of this KYN61 switchgear are in accordance with international standards such as IEC 62271-200 for AC metal-enclosed switchgear and controlgear, and relevant national standards like GB 3906. Specific certification details for your region can be confirmed upon inquiry.
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