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As a professional manufacturer with over a decade of experience in electrical equipment, Jinhua Dika Electrical Equipment Co., Ltd. proudly presents our advanced 35KV Ring Main Cabinet. Engineered for reliability and safety in medium-voltage distribution networks, this cabinet integrates a T-type plug-in isolator and a drop-out fuse into a compact, robust unit. It is designed to provide secure power isolation, effective fault protection, and flexible network configuration, making it an ideal solution for utilities and industrial facilities seeking to enhance grid stability and operational efficiency.
Our commitment to quality is backed by a comprehensive ISO 9001 certified management system and a production capacity that supports an annual export value of US$1 Million - US$1.5 Million. We serve a global clientele across North America, South America, Europe, Asia, Africa, and Oceania, shipping from major Chinese ports like Shanghai, Tianjin, Guangzhou, and Ningbo. This product embodies our dedication to delivering high-performance electrical solutions tailored to diverse market requirements.
Core Features & Technical Advantages:
- Integrated T-type Plug-in Isolator: Enables safe, visible isolation of circuit sections for maintenance. The plug-in design allows for quick and easy connection/disconnection, minimizing downtime.
- Reliable Drop-out Fuse Protection: Provides cost-effective overcurrent and short-circuit protection. Upon operation, the fuse link drops out, offering clear visual indication of a faulted section.
- Compact & Modular Design: The cabinet's space-saving design is suitable for installations with limited space. Its modular construction allows for future expansion or reconfiguration of the ring main system.
- Enhanced Safety: Features interlocking mechanisms to prevent incorrect operations. The enclosure provides a high degree of protection against environmental factors and unauthorized access.
- Durability & Low Maintenance: Constructed with high-quality, corrosion-resistant materials, the cabinet is built for long service life in harsh outdoor environments, requiring minimal maintenance.
Detailed Technical Specifications:
| Parameter | Specification |
| Rated Voltage | 35 kV |
| Rated Frequency | 50 / 60 Hz |
| Rated Normal Current (Isolator) | 630 A, 1250 A (customizable) |
| Rated Short-Time Withstand Current | 25 kA / 3s |
| Rated Peak Withstand Current | 63 kA |
| Fuse Rating (Drop-out Type) | Customizable (e.g., 6.3A - 200A) |
| Insulation Level | Power frequency: 70/80 kV; Lightning impulse: 170/195 kV |
| Mechanical Life (Isolator) | 2000 operations minimum |
| Operating Temperature Range | -25°C to +40°C |
| Enclosure Protection Degree | IP65 (standard), higher grades available |
Benefits for Your Operation:
- Improved Network Reliability: Ensures continuous power supply by allowing fault isolation without affecting the entire ring.
- Operational Safety: Protects personnel during maintenance with clear isolation points and visible fuse status.
- Cost Efficiency: Reduces the need for more expensive circuit breakers in certain applications and lowers long-term maintenance costs.
- Flexibility: Supports various cable entry types and can be customized to fit specific project layouts and standards.
- Quick Fault Location & Restoration: The drop-out action of the fuse allows for rapid identification and isolation of faulted feeders, speeding up restoration times.
Trust in a product developed by a manufacturer with a proven track record. Our 35KV Ring Main Cabinet is a result of stringent quality control processes aligned with international standards. Supported by a dedicated team of 11-50 professionals, we ensure every unit meets rigorous performance criteria before shipment. This robust solution is designed to withstand the demands of global markets, from the varied climates of Eastern Europe to the industrial hubs of Southeast Asia. By choosing our product, you are not just purchasing equipment; you are investing in a partnership with a reliable supplier committed to supporting your project's success with technical expertise and dependable service. Contact us today to discuss how this cabinet can be integrated into your power distribution system.
Frequently Asked Questions (FAQ)
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Q: What is the primary function of the T-type plug-in isolator in this cabinet?
A: The T-type plug-in isolator provides a secure and visible disconnection point for a section of the ring main circuit. It is used for safe isolation during maintenance, allowing work to be performed on a de-energized section while the rest of the network remains live. -
Q: How does the drop-out fuse work, and what are its advantages?
A: The drop-out fuse is a protective device that interrupts the circuit during an overcurrent or short-circuit fault. Once the fuse element melts, its housing drops down or swings open, providing a clear visual indication of the fault location. Its advantages include low cost, simplicity, and reliable performance. -
Q: Can this cabinet be used for both indoor and outdoor installations?
A: Yes, the cabinet is designed with a robust, weatherproof enclosure (standard IP65) suitable for outdoor installation. For specific environmental conditions, higher ingress protection (IP) ratings can be requested. -
Q: Is the insulation medium SF6 gas or something else?
A> The insulation medium can be customized based on project requirements and environmental considerations. Options typically include SF6 gas insulation or solid (dry) insulation. Please consult with our technical team for the best solution for your application. -
Q: What customization options are available for this product?
A> We offer various customization options, including rated current levels, fuse ratings, cable entry types (top or bottom), enclosure material and color, auxiliary contacts, and the choice between manual or motor-operated mechanisms. -
Q: What standards does this product comply with?
A> The cabinet is designed and tested in accordance with international standards such as the IEC 62271 series for high-voltage switchgear. It can also be manufactured to meet specific national standards like GB (China) or ANSI (North America) upon request. -
Q: What is the typical delivery lead time for an order?
A> Lead times vary based on order quantity and customization level. For standard configurations, typical lead times range from 4 to 8 weeks. We provide accurate timelines upon receipt of your detailed specifications. -
Q: Do you provide technical support and documentation?
A> Yes, we provide comprehensive technical documentation, including datasheets, installation manuals, and drawings. Our engineering team is available to offer pre-sales consultation and post-sales support to ensure successful deployment and operation.
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