Primary and Secondary Fused Pole-mounted Circuit Breaker Supplier

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Primary and Secondary Fused Pole-mounted Circuit Breaker

Primary and Secondary Fused Pole-mounted Circuit Breaker

The Primary and Secondary Fused Pole-Mounted Circuit Breaker is designed to protect electrical systems in power distribution networks. It combines the features of a circuit breaker and fuses, providing reliable protection against overloads and short circuits in both primary and secondary distribution lines. The device is mounted on poles, making it ideal for overhead distribution systems, where space and accessibility can be limited. With a compact design and easy-to-maintain components, it serves as an efficient solution for maintaining the safety and functionality of power networks.

Advantages
Effective Overcurrent Protection
The combination of circuit breakers and fuses ensures reliable protection against both overload and short-circuit conditions.It offers quick response times, limiting the damage to electrical components during fault conditions.

Ease of Maintenance
The fused design allows for simple replacement of fuses without needing to remove the entire circuit breaker, reducing maintenance time and effort.The pole-mounted configuration makes it easy to access and service, especially in areas with difficult terrain.

Versatile Application
This circuit breaker is suitable for both primary and secondary distribution systems, making it a versatile solution for various power networks.It can be used in both urban and rural areas, providing protection in different environmental settings.

Features
Pole-Mounted Design
The pole-mounted design is ideal for overhead power distribution lines, saving space and allowing for easy installation in areas with limited ground space.It is designed for outdoor use, with weather-resistant materials that protect it from environmental factors.

Dual Protection Mechanism
The primary and secondary fuses provide two levels of protection, ensuring that faults are addressed at different stages of the electrical system.This dual protection mechanism enhances system reliability and minimizes downtime in case of faults.

Compact and Durable Construction
The circuit breaker features a compact and robust design, capable of withstanding harsh outdoor conditions, including rain, snow, and high winds.Its durable materials ensure longevity, reducing the need for frequent replacements.

Altitude: Up to 2000 meters Ambient Air Temperature: -45°℃ to +70°℃; Daily Temperature Difference: 30℃
Wind Speed: ≤35m/s Suitable for places without flammable, explosive, chemically corrosive, and severe vibration hazards.

- GB1984 "AC High Voltage Vacuum Circuit Breaker"
- GB11022 "General Technical Conditions for High Voltage Switchgear"
- GB311.1 "Insulation Coordination for High Voltage Transmission and Transformation Equipment"
- DL/TS93 "Common Ordering Technical Conditions for High Voltage Switchgear"
- DL/T402 "Ordering Technical Conditions for AC High Voltage Vacuum Circuit Breakers"
- GB2706 "Methods of Dynamic and Thermal Stability Tests for AC High Voltage Apparatus"
- GB3309 "Mechanical Tests on High Voltage Switchgear under Common Conditions"
- DL403 "Ordering Technical Conditions for 10-35kV Indoor High Voltage Vacuum Circuit Breakers"

Item  Unit Data
Rated Voltage  KV 12
Locking Frequency  HZ 50
Rated Current  A 630 1250
Rated Short-Circuit Breaking Current  KA 20 25
Rated Peak Withstand Current (Peak) KA 50 63
Rated Short-Time Withstand Current  KA 20 25
Rated Short-Circuit Closing Current (Peak) KA 50 63
Mechanical Life  Times 10000
Rated Short-Circuit Breaking Current Breaking Times  Times 30
Power Frequency Withstand Voltage (1min): Wet/Dry Across Phases, to Ground/Between Poles  KV 30/42/48
Lightning Impulse Withstand Voltage (Peak): Across Phases, to Ground/Between Poles  KV 75/85
Secondary Circuit Power Frequency Withstand Voltage (1min) KV 2

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