High Voltage Limit Current Fuse for Voltage Transf
Usage
Low Voltage
Shape
Circle
Fusing Speed
FF
Fusing Device
Pop-up Solid
Standard
JIS
Place of Origin
Zhejiang China
Rated Voltage
12kv 24kv 35kv
Safety Standards
IEC
Current
100-630A
Voltage
12kv-36kv
Transport Package
Export Carton with Wooden or Polywood Pallet
Specification
CE
Trademark
XIKAI
Origin
Zhejiang China
HS Code
853610000
Production Capacity
50, 000 PCS/Year
Product Description
Product Description
1. Definition and Use
The composite current limiting fuse is a protective device that can quickly cut off the short-circuit current and limit its amplitude, and also has an automatic recovery function. It is mainly used in power systems, industrial equipment and distribution systems to prevent damage to equipment caused by overload and short circuit and ensure safe operation of the circuit.
2. Technical Parameters The main technical parameters of the composite current limiting fuse include:
Rated voltage: such as 6kV, 10kV, 35kV, etc., selected according to the usage scenario.
Rated current: ranging from tens of amperes to thousands of amperes.
Breaking capacity: the ability to safely cut off short-circuit current, usually in kA (kiloamperes).
Action time: When a short-circuit current occurs, the action time of the fuse is usually within a few milliseconds.
Ampere-second characteristic: describes the fuse's melting time curve under different overload currents. 3. Functional characteristics The composite current limiting fuse has the following characteristics:
Fast current limiting: When the short-circuit current has not reached its peak, the current is quickly cut off to effectively protect the circuit.
Automatic recovery function: Some models use materials such as gas, superconductor or liquid metal sodium as the fuse, which can automatically restore the conductive state after the fault disappears, without replacing the fuse.
Reusability: Due to the automatic recovery function, the fuse can be used multiple times, reducing maintenance costs.
High safety: Under short-circuit or overload conditions, it can quickly cut off the current to prevent equipment damage and fire. 4. Application scenarios Composite current limiting fuses are widely used in the following fields:
Power system: used for overload and short-circuit protection of substations and transmission lines.
Industrial equipment: protect key equipment such as motors, transformers, capacitors, etc. to prevent failures caused by overload or short circuit.
Distribution system: installed in distribution boxes and switch cabinets as main protection or backup protection to ensure the safe operation of the distribution system.
Specific equipment: such as semiconductor components, medical equipment, etc., to prevent overload or short circuit from damaging precision equipment. 5. Notes Selection and matching: Select the appropriate fuse model according to the rated voltage, current and short-circuit current level of the equipment.
Installation environment: Ensure that the fuse is installed in a well-ventilated environment without corrosive gases to avoid environmental factors affecting its performance.
Regular inspection: Regularly check the connection status of the fuse and whether the fuse is intact to ensure its reliability.
Automatic recovery type maintenance: For automatic recovery type fuses, it is necessary to regularly check the fuse status to ensure that it can recover normally
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