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Sangao is a professional manufacturer and supplier in China. Our factory provides lightning arrester, earthing switch, AC isolation switch, etc. Buy wholesale from our factory for grid, mining, and power plant projects.

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Outdoor Boundary Vacuum Circuit Breaker

SanGao High Quality Outdoor Boundary Vacuum Circuit Breaker is an outdoor power distribution device with a rated voltage of 12KV and three-phase AC 50Hz. When the internal fault of the user occurs in the T-shaped connection of the 12KV distribution line, or although it occurs inside the user's incoming switch, the protection action time limit and improper protection of the substation's outgoing switch can cause the outgoing protection of the substation to disconnect.

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High Voltage Circuit Breaker

SanGao High Quality High Voltage Circuit Breaker is an outdoor distribution equipment with a rated voltage of 12kV and three-phase AC 50Hz. It is mainly used for breaking and closing load current, overload current, and short-circuit current in power systems. It is suitable for distribution control in substations, industrial and mining enterprises, and urban and rural power grids, especially for frequent operation scenarios. This product complies with GB1984-2003, DL/T 402-2007, and IEC60056 technical standards, and supports remote monitoring and automation control.SanGao has gradually become a high quality supplier in China's High Voltage Circuit Breaker industry. They are widely used in urban and rural power grid renovation, transmission and distribution engineering, sewage treatment, hydropower stations, wind power plants, metallurgical industry, petrochemical industry, mining, railways, residential area construction, and power engineering projects. Normal operating environment ◆ Surrounding air temperature: -30 ℃~+60 ℃; ◆ Altitude: not exceeding 3000m; The wind speed does not exceed 34m/s; Vibration or ground motion from outside the switchgear and control equipment can be ignored; Pollution level: Level IV; Storage temperature: -40 ℃~+85 ℃. Characteristics of switch structure 1. The High Voltage Circuit Breaker features a three phase pillar structure that is maintenance free, small in size, lightweight, and has a long lifespan. 2. The circuit breaker adopts a fully enclosed structure with good sealing performance, which helps to improve moisture proof and anti condensation performance, especially suitable for use in cold or humid areas. 3. The three-phase pillars and current transformers adopt imported outdoor epoxy resin solid insulation, or indoor epoxy resin wrapped with organic silicon rubber solid insulation; It has the characteristics of high and low temperature resistance, UV resistance, and aging resistance.

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630A 3 Phase Vacuum Circuit Breaker

High quality 630A 3 phase Vacuum Circuit Breaker, as a type of vacuum circuit breaker with a rated current of 630A, is widely used in places that require frequent operation. As a side fixed type, SanGao's 630A three-phase vacuum circuit breaker is designed with dimensions suitable for load circuit breakers and vacuum circuit breaker combination switchgear. In recent years, our company has developed rapidly and our business scale has been expanding day by day. Adhere to technological innovation as the driving force, deeply implement the innovation driven strategy, and improve the mechanism for transforming scientific research achievements.

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HV Indoor Vacuum Circuit Breaker

Sangao's HV Indoor Vacuum Circuit Breaker is a key protection and control device in the power system, mainly installed in indoor environments. Under dispatch instructions, it safely closes (connects) or opens (disconnects) high-voltage circuits to operate equipment.

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Handcart Type Vacuum Circuit Breaker

Advanced Handcart Type Vacuum Circuit Breaker is an indoor high-voltage switchgear with a rated voltage of 24kV and three phase AC 50Hz, suitable for control or protection switches in power plants, substations, and industrial and mining enterprises. It is particularly suitable for cutting off important loads and frequent operations in high-altitude areas. SanGao adheres to the business philosophy of "quality, efficiency, and high standards" and has close cooperation and communication with technology enterprises such as Xi'an Senwu'an.

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12kv 630A Circuit Breaker

SanGao is a professional manufacturer of 12kv 630A Circuit Breakers and vacuum arc extinguishing chambers. The vacuum circuit breaker adopts a modular spring operating mechanism, with a simple structure and stable performance.Our company is located in Wenzhou High tech Development Zone, with convenient transportation and superior production environment.

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Indoor Handcart Vacuum Circuit Breaker

Advanced Indoor Handcart Vacuum Circuit Breaker has a rated voltage of 12kV and a three-phase AC frequency of 50Hz. It is a flexible device that can protect line equipment from short circuits or frequent operations. SanGao's quality policy is to continuously improve its quality management system, providing high performance air insulated switchgear, gas insulated ring main unit, vacuum circuit breaker vacuum bottles, and continuously meeting customers' requirements and expectations for product quality.

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12kv Indoor Vacuum Circuit Breaker

SanGao durable 12kv Indoor Vacuum Circuit Breaker , Named after its high vacuum insulation medium for both the arc extinguishing medium and the contact gap after arc extinguishing; It has the advantages of small size, light weight, and is suitable for frequent operation and arc extinguishing without maintenance, and is widely used in distribution networks.

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