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Introduction
The RN2 Indoor High-Voltage Current Limiting Fuse is an essential high-voltage fuse designed to provide overload and short-circuit protection for instrument transformers. With advanced current-limiting technology, this fuse quickly interrupts excessive currents, ensuring electrical system stability and preventing damage to critical components.
Engineered for indoor applications, the RN2 fuse is a high-performance safety solution that guarantees precision, efficiency, and long-term reliability in power substations, industrial electrical systems, and utility networks.
Key Features of RN2 High-Voltage Fuse
Effective Overload & Short-Circuit Protection – The RN2 fuse limits fault currents instantly, safeguarding instrument transformers.
Fast Response Time – Fuses current in the range of 0.6A-1.8A within one minute to ensure optimal protection.
Durable Indoor Design – Engineered for indoor high-voltage applications, providing reliable operation under demanding conditions.
Wide Voltage Compatibility – Available in multiple voltage ratings, suitable for different power system configurations.
High Breaking Capacity – Capable of interrupting high fault currents, enhancing power system safety.
Technical Specifications
| Item | RN2-3,6,10 | RN2-15,20 | RN2-35 |
|---|---|---|---|
| Rated Voltage (kV) | 3 / 6 / 10 | 15 / 20 | 35 |
| KV Fuse Current (A) | 0.5 | 0.5 | 0.5 |
| Maximum Breaking Capacity (MVA) | 500 | 1000 | 1000 |
| Maximum Breaking Current (KA) | 500 / 85 / 50 (for 3KV/6KV/10KV) | 40 / 30 (for 15KV/20KV) | 17 (for 35KV) |
| Overvoltage Tolerance | ≤ 2.5× rated voltage | ≤ 2.5× rated voltage | ≤ 2.5× rated voltage |
| Fuse Pipe Resistance (Ω) | 93 ± 7 | 200 ± 10 | 315 ± 14 |
| Total Weight (Kg) | 5.6 | 12.2 | 15.6 |
| Fuse Weight (Kg) | 0.9 | 1.6 | 2.5 |
Applications of High-Voltage Fuse
The RN2 High-Voltage Fuse is specifically designed for instrument transformer protection in high-voltage electrical systems. Its precision and reliability make it ideal for:
Power Substations – Ensuring safe operation of transformers and electrical components.
Industrial Power Systems – Preventing damage to sensitive equipment in factories and manufacturing facilities.
Utility & Distribution Networks – Maintaining grid stability by quickly isolating faulty circuits.
Renewable Energy Installations – Providing fault protection for transformers in solar and wind power plants.
By limiting fault currents and preventing equipment failure, the RN2 High-voltage solutions Fuse enhances power system efficiency and safety.
Why Choose the RN2 High-Voltage Fuse?
1. Superior Protection
Designed with current-limiting technology, the RN2 fuse provides instantaneous circuit isolation, preventing damage to transformers and ensuring uninterrupted power supply.
2. Reliable & Durable Performance
Manufactured using high-quality materials, this fuse is resistant to electrical stress, temperature variations, and aging, guaranteeing long-term operation.
3. Versatile Voltage Ratings
The RN2 High-Voltage Fuse is available in multiple voltage levels, making it compatible with diverse power distribution systems.
4. Optimized for Indoor Use
With a compact, durable design, the RN2 fuse is specifically engineered for indoor electrical environments, ensuring safe and efficient operation.
Frequently Asked Questions (FAQs)
1. What is the main function of the RN2 High-Voltage Fuse?
The RN2 fuse is designed for short-circuit and overload protection in instrument transformer applications. It limits excessive current flow, preventing damage to electrical equipment.
2. How do high-voltage fuses improve electrical system safety?
High-voltage fuses like the RN2 model quickly interrupt fault currents, reducing the risk of equipment failure, electrical fires, and power outages.
3. What is the rated voltage of the RN2 fuse?
The RN2 fuse is available in multiple voltage ratings, including 3kV, 6kV, 10kV, 15kV, 20kV, and 35kV, ensuring compatibility with different high-voltage systems.
