LW46-126KV
The LW46-126KV is a high-standard outdoor SF6 circuit breaker specially developed for 126kV high-voltage power transmission and distribution systems. Complying fully with IEC 62271-100 and GB international industry standards, this high voltage switchgear is widely adopted in large power substations, backbone grid projects, thermal power plants, wind and solar new energy power stations, and heavy industrial power systems for reliable circuit switching and power fault protection.
This 126kV outdoor circuit breaker adopts high-purity SF6 gas as insulating and arc-extinguishing medium, equipped with advanced self-energy arc extinguishing technology. It delivers excellent dielectric strength and outstanding short-circuit breaking performance, which can quickly and safely isolate overload and short-circuit faults in high-voltage power grids. Compared with traditional switchgears, the LW46-126KV breaker features lower operating consumption, minimal mechanical wear and superior long-term operational stability.
Fitted with a high-reliability spring operating mechanism, the LW46-126KV SF6 circuit breaker ensures accurate, stable and consistent closing and opening actions with ultra-low failure rate. The fully sealed integrated structure undergoes multi-layer anti-corrosion, waterproof, dust-proof and salt spray resistance treatment. It perfectly adapts to harsh outdoor environments such as high altitude, low temperature, coastal corrosion and sandy weather, realizing 24/7 stable operation in complex working conditions.
Designed with optimized compact structure and reasonable layout, the LW46-126KV high voltage breaker is easy to transport, install and commission on site. It requires almost no daily maintenance, effectively reducing operation and maintenance costs for power grid projects and improving the overall operating efficiency of high-voltage power systems. The equipment features high safety factor and strong environmental adaptability.
As core essential equipment for 126kV power grid construction and upgrading, the LW46-126KV outdoor SF6 circuit breaker enjoys high recognition in the global power industry. We provide factory direct sales, customizable technical solutions, complete certification documents and professional global after-sales service to support all kinds of high-voltage power engineering projects worldwide.
This 126kV outdoor circuit breaker adopts high-purity SF6 gas as insulating and arc-extinguishing medium, equipped with advanced self-energy arc extinguishing technology. It delivers excellent dielectric strength and outstanding short-circuit breaking performance, which can quickly and safely isolate overload and short-circuit faults in high-voltage power grids. Compared with traditional switchgears, the LW46-126KV breaker features lower operating consumption, minimal mechanical wear and superior long-term operational stability.
Fitted with a high-reliability spring operating mechanism, the LW46-126KV SF6 circuit breaker ensures accurate, stable and consistent closing and opening actions with ultra-low failure rate. The fully sealed integrated structure undergoes multi-layer anti-corrosion, waterproof, dust-proof and salt spray resistance treatment. It perfectly adapts to harsh outdoor environments such as high altitude, low temperature, coastal corrosion and sandy weather, realizing 24/7 stable operation in complex working conditions.
Designed with optimized compact structure and reasonable layout, the LW46-126KV high voltage breaker is easy to transport, install and commission on site. It requires almost no daily maintenance, effectively reducing operation and maintenance costs for power grid projects and improving the overall operating efficiency of high-voltage power systems. The equipment features high safety factor and strong environmental adaptability.
As core essential equipment for 126kV power grid construction and upgrading, the LW46-126KV outdoor SF6 circuit breaker enjoys high recognition in the global power industry. We provide factory direct sales, customizable technical solutions, complete certification documents and professional global after-sales service to support all kinds of high-voltage power engineering projects worldwide.
Product Details
LW46-126 (145kV) / T3150-40 SF6 circuit breaker The circuit breaker adopts a three-phase porcelain bottle pillar structure, which is designed for outdoor use. The three phases are equipped with an SRCT36-C spring operating mechanism, which is arranged in the center and three phases are connected, so the appearance is novel and exquisite. The circuit breaker uses SF6 gas as the insulation and arc extinguishing medium. During operation, the three-pole SF6 gas of the circuit breaker should be connected, and the pressure and density are monitored by a pointer density relay. Due to the self-energy arc extinguishing principle and the optimized design in the circuit breaker motion system, the mechanical efficiency is effectively improved and the operating work is reduced to the minimum.
LW46-126 (145kV) / T3150-40 SF6 circuit breaker The overall structure of this type of circuit breaker is shown in Figure 1. The three poles are installed on a common base. The control cabinet is centrally hoisted under the base. The spring operating mechanism and control unit are installed in the cabinet. The output rod of the mechanism is connected to the crank arm of the middle phase. The three-phase SF6 gas is connected to the crank box of the A-phase and C-phase circuit breakers to perform opening and closing operations. The SF6 gas density relay is used to monitor the SF6 gas density in the circuit breaker (the density relay is within the allowable working range of the product and can be calibrated on site without disassembly. If it is necessary to disassemble and calibrate, it is necessary to pay attention to the correct assembly of the sealing ring at the joint end of the density relay to prevent leakage)
LW46-126 (145kV) / T3150-40 SF6 circuit breaker The overall structure of this type of circuit breaker is shown in Figure 1. The three poles are installed on a common base. The control cabinet is centrally hoisted under the base. The spring operating mechanism and control unit are installed in the cabinet. The output rod of the mechanism is connected to the crank arm of the middle phase. The three-phase SF6 gas is connected to the crank box of the A-phase and C-phase circuit breakers to perform opening and closing operations. The SF6 gas density relay is used to monitor the SF6 gas density in the circuit breaker (the density relay is within the allowable working range of the product and can be calibrated on site without disassembly. If it is necessary to disassemble and calibrate, it is necessary to pay attention to the correct assembly of the sealing ring at the joint end of the density relay to prevent leakage)
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