36KV HRC Current-limiting Fuse

SARAH Electric has years of experience in the research and production of 36KV HRC Current-limiting Fuses, which are widely used in multiple large-scale power projects both domestically and internationally. Our 36 (40.5) kV high-voltage fuse tube has successfully shipped tens of thousands of units worldwide, winning unanimous praise from customers.

We continue to invest in research and development to ensure that your products always meet the latest industry standards and technical requirements, providing customers with the most cutting-edge power protection equipment. Choosing our 36 (40.5) kV high-voltage fuse tube means choosing safety and excellence. Let's work together to safeguard the stable operation of the power system!

Product Parameters

Core functionality

When a short circuit fault occurs in a circuit or equipment, the 36KV HRC Current-limiting Fuse will instantly melt, quickly cutting off the fault current, effectively preventing the accident from expanding and protecting the safety of the power system.

When the load exceeds the rated current for a long time, the fuse of the 36KV HRC Current limiting Fuse will melt due to overheating, thereby protecting key equipment such as transformers, lines, and switchgear from being burned out.

After melting, the fuse tube will form a clear disconnection point, meeting the safety requirements during maintenance and ensuring the personal safety of operators.

The 36KV HRC Current limiting Fuse adopts pure mechanical thermal effect action, does not rely on secondary power supply and control circuit, and can provide reliable protection even in extreme situations.

Main purpose

Suitable for the main protection of the incoming side of 10kV, 20kV, 35kV oil immersed or dry-type transformers, ensuring the safe operation of the transformers.

Provide short-circuit and overload protection in rural power grids, park power grids, and industrial and mining lines to ensure the stability of power supply.

The 36KV HRC Current limiting Fuse is suitable for indoor 12kV/24kV/36kV high-voltage cabinets and is used as a current limiting fuse to protect equipment inside the cabinet.

Provide short-circuit protection for capacitor banks, voltage transformers, and dry-type reactors to ensure the normal operation of the reactive power compensation system.

FAQ

Q: Can a 36kV HRC current-limiting fuse protect large transformers?

A: Yes, but selection depends on the transformer's capacity and specific protection requirements.

It is primarily suitable for small-to-medium distribution transformers, auxiliary transformers, and industrial transformers.

For large power transformers, combined protection schemes—such as circuit breakers, differential protection, and overcurrent relays—are typically employed.

Q: What is the internal structure of a 36kV HRC fuse?

A: Key components include:

1. Fuse Element: Made of silver alloy; melts rapidly under fault current conditions.

2. Quartz Sand: Absorbs arc energy and rapidly extinguishes the arc.

3. Fuse Tube: Provides insulation and mechanical protection.

4. End Cap: Connects to the external conductive system.

Q: Can a 36kV HRC fuse be replaced immediately after blowing?

A: No, immediate replacement is not advisable. The correct procedure is:

1. Identify the cause of the fault.

2. Inspect downstream equipment.

3. Confirm the absence of short-circuit faults.

4. Replace with a fuse of the same specifications.

5. Restore power after testing.

Replacing the fuse without investigating the root cause may result in damage to the new fuse and secondary equipment failure.