Sangao advanced Outdoor Vacuum Circuit Breaker adopts live tank design. The vacuum circuit breaker is installed in a hollow porcelain insulator filled with SF6/Nitrogen at a pressure of 0.5 bar above atmospheric pressure to prevent condensation. The entire construction is enclosed in a glass or ceramic insulating container. It is vacuum-tight. The interior of the circuit breaker is where the vacuum circuit breaker or arc is extinguished.
Outdoor Vacuum Circuit Breaker is the most important part of the medium voltage network. They have to make and break all currents within the rated range, from small inductive and capacitive load currents to short-circuit currents, regardless of ground faults, phase reversal, etc. Outdoor Vacuum Circuit Breakers (OVCB) have to face higher requirements and are additionally affected by weather conditions.
The structure of Outdoor Vacuum Circuit Breaker is similar to other circuit breakers, but the insulating container is vacuum. The arc chamber is made of steel and houses the main components, including movable and fixed contacts and vacuum circuit breaker. Since the contacts are one of the most critical components of the vacuum circuit breaker, it is crucial to use the right material. The contacts are usually made of copper-chromium or copper-bismuth because these materials transfer electrical energy very well.
The Three-Phase Circuit Breakers module implements a SanGao high quality Three Phase Circuit Breaker, whose opening and closing times can be controlled through external signals (external control mode) or internal control timers (internal control mode). The control signal connected to Simulink input must be 0 to open the circuit breaker, or any positive value to close the circuit breaker.
Read MoreSend InquiryAs a leading manufacturer of outdoor gas circuit breakers, SanGao Electric specializes in the design and production of top level SF6 gas circuit breakers (SF6-CB). Our focus is on developing Gas Circuit Breakers for high demand applications in the field of power transmission and distribution. We offer various types of SF6 circuit breakers to meet various voltage levels and operational requirements. Explore our choices and discover competitive SF6 circuit breaker prices!
Read MoreSend InquirySanGao durable 11 kv outdoor vacuum circuit breaker are used in 50Hz, 40.5KV AC three phase power systems for breaking and closing load currents, overload currents, and short circuit currents. When used in conjunction with an intelligent controller, it can achieve automatic reclosing function, as well as remote control, telemetry, remote signaling, and remote adjustment.
Read MoreSend InquirySanGao durable 40.5KV Switch Recloser is used in 50Hz, 40.5KV AC three phase power systems for breaking and closing load currents, overload currents, and short circuit currents. When used in conjunction with an intelligent controller, it can achieve automatic reclosing function, as well as remote control, telemetry, remote signaling, and remote adjustment.
Read MoreSend InquirySanGao 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.
Read MoreSend InquirySanGao 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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