Vacuum Circuit Breaker - Zhejiang Zhegui Electric Co., Ltd.

VS1-12 Vacuum Circuit Breaker

Leading the future of electricity security

Advanced vacuum arc extinguishing technology, high efficiency, energy saving, stable and reliable, for the safety of the power grid escort

ZN85 Vacuum Circuit Breaker

Power solutions designed for you

Using the latest vacuum arc extinguishing and insulation technology, to ensure stable and reliable power transmission, effectively reduce the failure rate.

ZW32 Outdoor Vacuum Circuit Breaker

Designed for the Extreme, Your Power System's Guardian

Designed for outdoor use, the use of cutting-edge Vacuum arc extinguishing technology to ensure ultra-high reliability and stability, Vacuum Circuit Breaker can easily cope with high temperature, low temperature, high humidity, dust storm and other harsh environment, keep the performance is not affected.

INTRODUCTION TO VACUUM CIRCUIT BREAKER

Vacuum circuit breaker is a circuit breaker that realizes its opening and closing function by using the principle of arc extinguishing in vacuum. In a vacuum, when two contacts are separated, an arc is created between the contacts. Due to the strong extinguishing ability of the arc in the vacuum, the current can be quickly cut off, thus protecting the safe operation of the power system.

MAIN PROMOTED PRODUCTS

VS1-12 Vacuum Circuit Breaker

High arc extinguishing
High reliability
Strong adaptability

Designed for 12kV voltage level, three-phase AC 50/60Hz distribution systems, the VS1-12 vacuum circuit breaker integrates state-of-the-art vacuum arc-extinguishing technology within a fully enclosed structure. This breaker is engineered to fulfill the rigorous efficiency and reliability demands of contemporary electrical power systems. Its compact and versatile design renders it indispensable across industrial sites, residential buildings, power systems, and mining operations.

ZN85 Indoor Vacuum Circuit Breaker

High arc extinguishing capability
Excellent insulation performance
Long life and low maintenance requirements
Wide range of applications

ZN85 Indoor Vacuum Circuit Breaker

Efficient arc extinguishing performance

Intelligent control
Environmental adaptability
Wide range of application scenarios

WHY CHOOSE GIANT-ELECTRIC FOR VACUUM CIRCUIT BREAKER？

Improved Electrical Network Performance

Improved Electrical Network Performance

Our breakers leverage state-of-the-art synchronous interruption technology, which is designed to minimize transient over-voltages in electrical networks. This not only enhances power supply quality but also extends the operational lifespan and efficiency of the circuit breakers.
Long-term Durability

Long-term Durability

Our products are designed with the needs of long-term use in mind, ensuring that vacuum circuit breakers maintain excellent performance even under extreme conditions.
Tailor-Made Design Solutions

Tailor-Made Design Solutions

We cater to a variety of application requirements and specific client needs with customized design solutions, ensuring a perfect fit for your systems.
Quick Adaptation to New Technologies

Quick Adaptation to New Technologies

Keeping pace with rapid technological advancements, we incorporate the latest innovations like synchronous interruption and smart technology into our services, ensuring we lead the market in customization capabilities.

USAGE RANGE OF VACUUM CIRCUIT BREAKER

Power Grid

Power Grid

In the power grid, the vacuum circuit breaker is mainly used to protect and control the bus, inlet and outlet lines and transformers. Bus is the core part of power system, and its safe operation is very important to the whole power grid. The vacuum circuit breaker can quickly cut off the fault current, prevent the expansion of short circuit and overload fault, and ensure the stability and reliability of the power grid. In addition, in the incoming and outgoing line protection, the vacuum circuit breaker can quickly cut off the fault part when the line fails, prevent the spread of the fault, and ensure the safety of power transmission.

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Power Stations

Power Stations

In power stations, vacuum circuit breakers are mainly used for generator and transformer protection. The generator is the core equipment of the power station, and the vacuum circuit breaker ensures the safe operation of the generator by providing overload protection, short circuit protection and ground fault protection, and prevents equipment damage and shutdown caused by fault. In addition, the vacuum circuit breaker is also used to protect the transformer in the power station from overload and short circuit, ensuring the stable operation of the power system. In the power station distribution system, the vacuum circuit breaker plays a key protection and control role to ensure the safety and reliability of power distribution.

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Industrial Equipment

Industrial Equipment

In industrial equipment, vacuum circuit breakers are used to protect and control various motors, transformers and capacitor banks and other equipment. Motor is an important equipment in industrial production, vacuum circuit breaker by providing start/stop control, overload protection and short circuit protection, to ensure the safe operation of the motor, to prevent damage caused by overload, short circuit or other failures. Similarly, vacuum circuit breakers are used to protect transformers in industry from overload and short circuits, ensuring the safe operation of equipment. In addition, the vacuum circuit breaker is also used to protect the capacitor bank from overcurrent and short circuit, ensuring the reliable operation of the equipment.

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Road System

Road System

In road systems, vacuum circuit breakers are used to protect and control electrical equipment such as road lighting, electric traffic signal equipment and charging stations. The road lighting system needs a stable power supply, and the vacuum circuit breaker ensures the safe operation of the lighting equipment by providing overload protection and short circuit protection to prevent equipment damage and power failure caused by electrical faults. In electric traffic signal equipment, the vacuum circuit breaker is used to prevent equipment damage due to overload and short circuit to ensure the normal operation of traffic signals. In addition, with the popularity of electric vehicles, the safe operation of charging stations has become particularly important. The vacuum circuit breaker is used to protect the charging device from damage and security risks caused by faultsy of passengers.

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WHAT COULD WE DO FOR YOU？

ANSWERS TO VACUUM CIRCUIT BREAKER INQUIRIES

What is the basic working principle of vacuum circuit breaker?

Vacuum circuit breakers utilize a unique method to extinguish electrical arcs by separating contacts in a vacuum. This process takes advantage of the vacuum's inherent high insulation properties to quickly quench the arc. When the electrical current reaches zero, the arc naturally dissipates, reinstating the insulation barrier and effectively preventing the re-ignition of the arc. This efficient mechanism is key to their high reliability and performance in managing high-voltage circuits.
What are the main technical parameters of the vacuum circuit breaker, and what is the meaning of each parameter?

1.The performance and applicability of vacuum circuit breakers are mainly defined by the following key technical parameters:
Rated Voltage: The maximum voltage level the breaker can handle safely, typically in kilovolts (kV).

2.Rated Current: The highest current the breaker can carry continuously under standard conditions, usually in amperes (A).

3.Breaking Capacity: Also known as interrupting capacity, it's the maximum fault current the breaker can interrupt safely, measured in kiloamperes (kA). This parameter is vital for evaluating the breaker's capability.

4.Mechanical Life: The number of operations the breaker can perform without significant maintenance.

5.Electrical Life: The number of operational cycles (open and close) the breaker can achieve under defined conditions.

6.Insulation Level: Involves phase-to-ground and phase-to-phase insulation strength, typically assessed through dielectric tests, to ensure operational safety in high-voltage scenarios.

7.Operation Time: The duration from activating the breaker to fully disconnecting the circuit, crucial for the system's protection and stability.

8.Reclosing Time: The time gap between the breaker's opening and subsequent reclosing, significant for systems with automatic reclosing mechanisms.
How to choose the right vacuum circuit breaker specifications and models according to the needs of the power system?

Selecting the right vacuum circuit breaker for your power system involves careful consideration of several key factors. Begin with the system's voltage level to ensure compatibility with the breaker's rated voltage. Next, assess the system's maximum load current to choose a breaker that can handle this capacity. The breaker's breaking capacity is also crucial; it must be capable of safely interrupting the system's potential maximum short-circuit current. Additionally, take into account the frequency of operation to determine the necessary mechanical and electrical life for long-term reliability. Choose an operational mode (manual, electric, or remote) and installation type (fixed or withdrawable) that best suits your application. Environmental conditions such as temperature, humidity, and altitude also play a significant role in ensuring the breaker's operational stability. Opt for products that meet both international and regional standards. Lastly, evaluate the supplier's technical support, product quality, and cost-effectiveness to find the vacuum circuit breaker that best meets the needs of your power system.
What do you need to pay attention to the maintenance and inspection of vacuum circuit breakers?

The upkeep and scrutiny of vacuum circuit breakers predominantly revolve around maintaining cleanliness inside and outside the breaker, verifying that the mechanical operations are functioning correctly, periodically assessing the vacuum level within the vacuum chamber, and examining and upholding the control system. Given the unique nature of vacuum circuit breakers, the vacuum chamber, once sealed, is inaccessible for user inspection. Consequently, the evaluation of the vacuum chamber relies on indirect methods such as insulation resistance measurements and the observation of arc extinguishing during breaker operation.

INTRODUCTION TO VACUUM CIRCUIT BREAKER

WHY CHOOSE GIANT-ELECTRIC FOR VACUUM CIRCUIT BREAKER？

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