Industrial Vacuum Load Break Switch With Ceramic Hookstick

Industrial Outdoor Vacuum Circuit Breaker Controlled Manually/Automatically Matching With GW9 Series Ceramic Hookstick

Product Description:

The ZW8-12 outdoor high-voltage AC vacuum circuit breaker is specifically designed for use in three-phase AC outdoor high-voltage switchgear. It is suitable for power distribution systems in urban and rural areas with a rated voltage of 12kV and a rated frequency of 50Hz.
The primary function of the ZW8-12 circuit breaker is to switch on or off load currents and short-circuit fault currents in the distribution systems. It ensures the safe and reliable operation of the power grid by interrupting fault currents and protecting electrical equipment.
It is described as one of the most widely used products in the power system. Its widespread adoption and usage indicate its proven performance, reliability, and maturity in various power distribution applications.
The ZW8-12 circuit breaker is known for its stability in operation. It is designed to offer consistent performance and withstand the environmental conditions of outdoor installations, ensuring reliable switching operations even in challenging outdoor environments.

The GW9-10 ceramic hookstick is a type of electrical switch used to isolate a section of an overhead power transmission line for maintenance or repair. It is typically used in high voltage electrical systems, such as those used by power utilities to transmit electricity over long distances.

The switch is mounted on an overhead structure, such as a transmission tower or pole, and is designed to withstand the harsh environmental conditions encountered in outdoor electrical systems. It features a vertical, or up-and-down, motion to engage or disengage the switch contacts, which are typically made of copper or other conductive materials.

The hookstick is designed to provide a visible break in the transmission line, allowing maintenance personnel to safely work on the line without risk of electrocution or damage to equipment. It is often used in conjunction with other safety devices, such as grounding switches and surge arrestors, to protect the electrical system and the people working on it.

Double effect of using when GW9-10 series isolator swich can be used with the vacuum circuit breakers!!

Advantage:

1.It is equipped with CT23 type spring energy-stored operating mechanism. Energy-stored, opening and closing can be achieved by motor or by manual.

2.ZW8-12G consists of ZW8-12 breaker and isolator, called combined breaker, can be used as sectionalizer.

3.The structure of breaker is of three-phase assembled in a tank, three-phase vacuum arc-extinguishing chamber enclosed in metal tank, insulation material between phases and phase to each made of SMC.

4.reliable performances, and high insulating strength.

 
Condition:

1.Ambient temperature: The circuit breaker is designed to operate within a temperature range of -15°C to +40°C. This means it can function effectively in environments with temperatures as low as -15°C and as high as +40°C.

2.Wind pressure: The circuit breaker can withstand wind pressures of up to 700Pa, which is equivalent to a wind speed of 34m/s. This ensures that the circuit breaker remains stable and unaffected by strong winds.

3.Altitude: The circuit breaker is suitable for installation at altitudes of up to 1000m above sea level. It is designed to operate reliably within this altitude range.

4.Seismic intensity: The circuit breaker is designed to withstand seismic activities with an intensity level of up to 8 on the seismic intensity scale. This ensures that it remains operational and unaffected by seismic vibrations up to this level.

Application

1.Distribution Systems: The ZW8-12 circuit breaker plays a crucial role in controlling and protecting distribution systems in 10kV urban and rural power grids. It is responsible for switching on or off load currents, ensuring reliable power distribution to consumers.

2.Power Substations: The circuit breaker is frequently employed in power substations where high-voltage transmission lines are connected to distribution networks. It helps in the isolation and protection of equipment, allowing for safe and efficient operation of the substation.

3.Industrial Power Systems: Industries with high-power requirements, such as manufacturing plants, mining operations, and large-scale infrastructure projects, often utilize the ZW8-12 circuit breaker to control and protect their high-voltage power systems. It helps in managing load currents and safeguarding the equipment from short-circuit fault currents.

4.Renewable Energy Systems: With the increasing adoption of renewable energy sources like wind and solar power, the ZW8-12 circuit breaker finds application in high-voltage switchgear systems associated with renewable energy generation. It aids in the efficient integration of renewable energy into the grid and ensures the safe operation of the power generation facilities.

5.Oil and gas industry: Outdoor vacuum circuit breakers are used in the oil and gas industry to switch and protect electrical equipment, such as pumps, compressors, and pipelines.

Structure:

1.The upper cover of the enclosure is processed using the one-time stretching forming technology of the mold, achieving an IP4X protection level, high mechanical strength, beautiful appearance, and easy installation. It is not easy to rust and is corrosion-resistant. Stainless steel or high-quality steel plate spray treatment can be selected.

2.The disconnecting switch (optional) is tailored according to the ZW8 switch body unit, with an obvious disconnect point during distribution line maintenance, and a mechanical interlocking device between the disconnecting switch and the circuit breaker to prevent misoperation.

 Technical Parameter:

ZW8-12

 
 GW9-10