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Help CenterHigh Voltage Current Fuse RW11-12KV, 200A Rating for Substation and Power Distribution
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As a professional manufacturer of electrical protection equipment, Jinhua Dika Electrical Equipment Co., Ltd. is proud to introduce our RW11-12KV, 200A High Voltage Current Fuse. Engineered for reliability in demanding power distribution and substation environments, this fuse is a critical component for safeguarding electrical networks against fault currents. With over a decade of experience serving global markets from North America to Southeast Asia, we understand the stringent requirements for safety and durability in high-voltage applications. Our commitment to quality manufacturing processes ensures that every RW11 fuse delivers consistent performance, helping to minimize downtime and protect valuable assets.
The RW11-12KV fuse is designed as a drop-out type, current-limiting fuse for outdoor installation on poles or structures. Its primary function is to interrupt fault currents swiftly and safely, preventing damage to transformers, switchgear, and other distribution equipment. The 200A rating makes it suitable for feeder protection and transformer primary side protection in 12KV systems.
- Robust Construction: Built with high-grade materials to withstand harsh environmental conditions including moisture, pollution, and temperature variations.
- Clear Fault Indication: The drop-out mechanism provides visible confirmation of fuse operation, allowing for quick identification and maintenance.
- Current Limiting Design: Limits the peak let-through current and thermal energy during a fault, reducing stress on downstream equipment.
- Easy Installation and Replacement: Designed for straightforward mounting on standard fittings, minimizing maintenance time and labor costs.
- Consistent Performance: Precision calibration ensures accurate time-current characteristics for selective coordination with other protective devices.
The technical specifications of the RW11-12KV, 200A fuse are detailed below:
| Parameter | Specification |
| Rated Voltage | 12 Kilovolts (KV) |
| Rated Current | 200 Amperes (A) |
| Model Standard | RW11 |
| Frequency | 50/60 Hz |
| Breaking Capacity | High (Specific values available upon request) |
| Insulation Level | Suitable for 12KV systems |
| Ambient Temperature Range | -40°C to +40°C (Operational) |
| Mounting Type | Outdoor, Pole Mountable |
Choosing our RW11 fuse translates into tangible benefits for your operations. Enhanced System Reliability is achieved through dependable fault interruption, which helps prevent cascading failures. The Reduced Maintenance Costs stem from the durable design and clear visual indication, allowing for targeted and efficient servicing. Furthermore, the current-limiting nature of the fuse provides Superior Equipment Protection, extending the lifespan of transformers and cables by mitigating the damaging effects of high fault currents. This contributes to a lower total cost of ownership over the system's lifetime.
Our manufacturing expertise is backed by a structured approach to quality. Jinhua Dika Electrical serves a diverse international clientele, with annual export values reflecting our commitment to global standards. We support flexible logistics with multiple major ports of shipment like Shanghai, Tianjin, Guangzhou, and Ningbo, ensuring timely delivery to your project site. When you partner with us, you are selecting a supplier with a proven track record in producing essential components for power infrastructure. We invite you to contact us for detailed technical data sheets, pricing, or to discuss custom requirements for your specific substation or distribution network protection needs.
Frequently Asked Questions (FAQ)
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What is the primary application of the RW11-12KV, 200A fuse?
This fuse is primarily used for the protection of transformers, capacitors, and feeder lines in 12KV outdoor substations and power distribution networks. It acts as a backup or primary protection device to interrupt fault currents. -
How does the drop-out feature work?
Upon operation (melting of the fuse element), a mechanism is triggered that causes the fuse body to pivot and drop to a hanging position. This provides a highly visible, unambiguous indication that the fuse has operated, aiding in fault location. -
Can this fuse be used in indoor switchgear?
The RW11 model is typically designed for outdoor pole or structure mounting. For indoor switchgear applications, other fuse models with appropriate enclosures and ratings would be recommended. Please inquire for indoor alternatives. -
What are the time-current characteristics of this fuse?
The fuse has specific time-current curves that define its speed of operation under overload and fault conditions. These detailed curves are available in the product's technical datasheet, which can be provided upon request for coordination studies. -
Is the 200A rating the maximum continuous current?
Yes, the 200A rating indicates the maximum RMS current the fuse can carry continuously without deterioration or unintended operation under specified conditions. -
What is the expected mechanical life (number of operations)?
The fuse is designed for reliable single-operation per unit. After interrupting a fault, the fuse unit must be replaced. The mechanical housing and contacts are built for durability over many years of service in the installed state. -
Do you offer other current ratings for the RW11-12KV model?
Yes, a range of standard current ratings is typically available for the RW11 series. Common ratings include 50A, 100A, 150A, and 200A. Other ratings may be customizable upon request. -
What standards does this product conform to?
The product is manufactured according to prevalent industry standards for high-voltage fuses. Specific standard compliance details, such as relevant IEC or national standards, can be confirmed with our technical sales team.
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