700Pa High Voltage Circuit Breakers Vacuum Circuit Breaker Schneider With Hookstick

High Voltage AC Vacuum Circuit Breaker Intelligent Automatic/Manual Circuit Breaker Matching With Single Phase Hookstick

Product Description:

The ZW8-12 outdoor high-voltage vacuum circuit breaker is suitable for three-phase AC outdoor high-voltage switchgear with a rated voltage of 12kV and a rated frequency of 50Hz. It is mainly used in the distribution systems of 10kV urban and rural power grids to switch on or off load currents and short-circuit fault currents. It is one of the most widely used, mature, and stable products in the power system.

GW9-10 hookstick is a type of electrical switch used in high voltage power systems to isolate sections of the network for maintenance or safety purposes. The switch is typically mounted on a pole or other support structure and is used to disconnect an overhead power line from the rest of the system.

The hooksticks are designed to handle high voltages and currents and are often installed in outdoor locations. They consist of a set of stationary and movable contacts that are separated by an air gap. When the switch is in the closed position, the contacts are in contact with each other, allowing current to flow through the circuit. When the switch is opened, the contacts are separated, interrupting the flow of current through the circuit and isolating it from the rest of the system.

The hooksticks are an important component of power system safety and reliability and are designed to operate in a variety of environmental conditions. They are often subject to rigorous testing and certification requirements to ensure that they meet industry standards for performance and safety.

The hooksticks are commonly used in high voltage transmission and distribution systems to isolate sections of the network for maintenance or repair work. They are also used as a safety device to protect workers from electrical hazards, such as accidental contact with live parts of the system.

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

Feature:

1.The ZW8-12 outdoor high-voltage AC vacuum circuit breaker features enhanced anti-pollution capability, with internal insulation designed for both air and epoxy resin composite insulation. This insulation system helps protect the circuit breaker from environmental pollutants, ensuring its reliable operation even in polluted or harsh outdoor conditions.

2.The ZW8-12 circuit breaker is equipped with a missile energy storage operating mechanism. This mechanism utilizes stored energy to efficiently operate the circuit breaker, enabling quick and reliable switching operations. The missile energy storage mechanism enhances the overall performance and reliability of the circuit breaker.

3.The ZW8-12 circuit breaker can be configured with either a one-side (left side) or two-side separation switch, along with an external PT (Potential Transformer). This flexibility allows for versatile installation options based on specific system requirements. The one-side or two-side separation switch enables easy isolation of the circuit breaker from the power system, while the external PT facilitates accurate voltage measurement and monitoring.

 
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.Power Distribution Networks: The ZW8-12 circuit breaker can be used in medium-voltage distribution networks, such as substations, to protect transformers, feeders, and other electrical equipment from overloads and short circuits. It ensures reliable and safe operation of the distribution system.

2.Industrial Plants: Industries such as manufacturing plants, chemical facilities, and mining operations often utilize the ZW8-12 circuit breaker to protect critical equipment and machinery. It provides fault protection for motors, generators, switchgear, and other industrial electrical systems.

3.Commercial Buildings: The ZW8-12 circuit breaker is commonly installed in commercial buildings, including office complexes, shopping malls, hospitals, and educational institutions. It safeguards electrical distribution systems, HVAC systems, elevators, lighting circuits, and other essential building infrastructure.

4.Renewable Energy Systems: With the increasing adoption of renewable energy sources like wind and solar power, the ZW8-12 circuit breaker is used to protect medium-voltage renewable energy installations. It ensures safe disconnection of power generated from renewable sources during faults or maintenance operations.

5.Infrastructure Projects: The ZW8-12 circuit breaker is suitable for infrastructure projects such as railways, airports, and water treatment facilities. It protects electrical systems, including traction power systems, lighting systems, pumping stations, and control circuits.

6.Data Centers: Data centers require reliable and robust electrical protection. The ZW8-12 circuit breaker is commonly used in medium-voltage distribution systems within data centers to safeguard critical servers, backup power systems, cooling infrastructure, and uninterruptible power supplies (UPS).

7.Oil and Gas Facilities: In the oil and gas industry, the ZW8-12 circuit breaker is employed in medium-voltage electrical systems for protection and control of pumps, compressors, motors, and other equipment in refineries, offshore platforms, and peline installations.

Structure:

1.Enclosure: The circuit breaker is housed in a sturdy enclosure made of high-quality materials, such as steel or aluminum. The enclosure provides mechanical protection and insulation for the internal components.

2.Operating Mechanism: The operating mechanism is responsible for opening and closing the circuit breaker contacts. It may consist of a manual or motorized mechanism, depending on the specific design. The operating mechanism ensures smooth and reliable operation of the circuit breaker.

3.Vacuum Interrupter: The vacuum interrupter is the core component of the circuit breaker. It is a sealed chamber filled with a high-quality vacuum. When the circuit breaker is closed, the contacts are in contact with each other within the vacuum interrupter. When the circuit breaker needs to interrupt the current, the vacuum interrupter creates a highly reliable arc-quenching medium, extinguishing the arc effectively.

4.Contacts: The circuit breaker contacts are responsible for carrying and interrupting the electrical current. They are typically made of high-conductivity materials, such as copper or silver. When the circuit breaker is closed, the contacts are in touch, allowing the current to flow. When the circuit breaker is opened, the contacts separate, interrupting the current flow.

5.Arc Chutes: Arc chutes are designed to facilitate the rapid and effective extinguishing of the arc that forms during circuit interruption. They are positioned around the contacts and utilize various arc quenching techniques, such as magnetic blowout or arc splitting, to ensure efficient arc extinction.

6.Insulating Materials: Insulating materials, such as porcelain or composite materials, are used to provide insulation and support for the internal components of the circuit breaker. They help maintain the required electrical clearances and prevent flashovers.

7.Control and Protection Devices: The circuit breaker may include control and protection devices, such as trip coils, auxiliary switches, and relays. These devices provide additional functionality, such as remote operation, fault detection, and coordination with other protective devices in the electrical system.

8.Terminals: The circuit breaker is equipped with terminals for connecting the incoming and outgoing electrical conductors. These terminals allow the circuit breaker to be integrated into the electrical distribution system.

 Technical Parameter:

ZW8-12

 
 GW9-10