Circuit breaker
High Voltage Transformer High Voltage Transformer
ZCW□-72.5(126.5)/L
ZCW□-72.5(126.5)/L- type open-type combination of electrical appliances is the use of air as the outer insulation SF6 gas as the interrupter medium complete sets of electrical appliances.For three-phase AC72.5KV power transmission and distribution system control and protection can also be used to contact the circuit breaker and opening and closing capacitor group of occasions.Suitable for land tension city substation,enterprise substation, mountain substation.
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ZCW10-40.5L
ZCW10-40.5L-type open-type combination of electrical appliances is the use of air as the outer insulation SF6 gas as the interrupter medium complete sets of electrical appliances.For three-phase AC72.5KV power transmission and distribution system control and protection can also be used to contact the circuit breaker and opening and closing capacitor group of occasions.Suitable for land tension city substation,enterprise substation,
mountain substation.
LW36-126T/3150-40
High-volt ac Sf6 dead tank circuit breaker
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LW36-72.5T3150-40
High-volt ac Sf6 dead tank circuit breaker
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LW8-40.5
The LW8-40.5 is a high-performance outdoor SF6 circuit breaker developed for 35kV/40.5kV three-phase AC power distribution systems. Adopting sulfur hexafluoride gas as insulation and arc extinguishing medium, this breaker delivers excellent dielectric strength and reliable short-circuit breaking performance, ensuring safe and stable operation of power transmission lines and substation equipment.
Equipped with a high-precision spring operating mechanism, the LW8-40.5 SF6 circuit breaker features flexible opening and closing action, low mechanical failure rate and no frequent maintenance. The fully sealed integral gas chamber structure effectively reduces gas leakage, with an ultra-low annual leakage rate, adapting to long-term outdoor operation in complex environments such as high temperature, severe cold, humidity and dust.
This model supports multiple rated current and breaking capacity specifications, covering 630A, 1250A, 1600A and 2000A, fully complying with IEC and international industry standards. It is widely applicable in power grid reconstruction, industrial and mining enterprises, photovoltaic power stations, wind power plants and urban outdoor substations, undertaking circuit switching, overload protection and short-circuit fault protection functions.
With the advantages of compact structure, stable performance, long service life and low operation cost, the LW8-40.5 outdoor SF6 circuit breaker has become a mainstream and reliable high-voltage switch device for medium and high voltage outdoor power systems.
LW8(A)-40.5
LW8(A)-40.5 is an upgraded version of the classic 40.5kV outdoor SF6 circuit breaker, optimized and improved on the basis of the traditional LW8 series. This upgraded high-voltage switch adopts sulfur hexafluoride gas as insulation and arc extinguishing medium, with a newly optimized fully sealed gas chamber structure, effectively reducing SF6 gas leakage and realizing long-term maintenance-free outdoor operation.
Equipped with a stable spring operating mechanism, the LW8(A)-40.5 circuit breaker delivers flexible and reliable opening and closing operations, low mechanical wear and high operational safety. It has excellent weather resistance, adapting to harsh outdoor environments such as extreme temperature differences, strong wind, dust and high humidity, perfectly suitable for outdoor power distribution and substation protection scenarios.
Available in multiple mainstream specifications including 630A, 1250A, 1600A and 2000A, with breaking capacities of 20kA and 31.5kA, the LW8(A)-40.5 breaker strictly complies with IEC and international power industry standards. It is widely used in power grid renovation, industrial and mining enterprises, photovoltaic power stations, wind power projects and urban 35kV/40.5kV outdoor substations.
Compared with ordinary models, LW8(A)-40.5 features more stable dielectric performance, longer service life and lower operating costs. It is a cost-effective and reliable core equipment for medium and high voltage outdoor power transmission and distribution systems.
LW36-55
LW36-55 is an outdoor high voltage SF6 circuit breaker designed for 55kV AC 50Hz power systems. It adopts SF6 gas as insulation and arc extinguishing medium, self-energy arc extinguishing principle, and spring operating mechanism.
Key features include strong short-circuit breaking capacity, low operating power, high mechanical stability, and long service life. Suitable for power transmission, distribution networks, substations, industrial power supply, and urban/rural power grid renovation.
It operates reliably in harsh environments, meeting IEC standards for power system control, protection, and fault current interruption.
LW□-252/3150-40
The LW□-252 is a high-performance outdoor three-phase AC SF6 circuit breaker specially designed for 220kV/252kV high-voltage power transmission systems. Adopting advanced self-blast SF6 arc extinguishing technology and sulfur hexafluoride gas for insulation and arc extinction, this breaker delivers superior dielectric performance and powerful short-circuit breaking capability, meeting the strict operation requirements of large-scale power grid substations.
This 252kV SF6 circuit breaker supports both single-pole and three-pole linkage operation, adapting to different power system control strategies. It is equipped with a reliable operating mechanism, featuring flexible opening and closing actions, low mechanical failure rate and long mechanical service life. The optimized fully sealed gas chamber structure greatly reduces SF6 gas consumption and annual leakage rate, realizing maintenance-free operation for a long period.
Available in mainstream specifications of 3150A, 4000A rated current and 40kA, 50kA short-circuit breaking capacity, the LW□-252 circuit breaker fully complies with IEC and international power industry standards. It is widely used in national power grids, large industrial substations, new energy power stations and long-distance power transmission projects, undertaking circuit switching, overload protection and short-circuit fault isolation core functions.
With the advantages of compact and reasonable structure, excellent environmental adaptability, stable high-voltage operation performance and low comprehensive operation cost, the LW□-252 outdoor SF6 circuit breaker is the core preferred switch equipment for 220kV high-voltage power transmission and transformation engineering.
LW36-145
LW36-145 is an outdoor high voltage SF6 circuit breaker used in 145kV AC power systems. It uses SF6 gas as insulation and arc extinguishing medium, with spring operating mechanism, stable performance and high breaking capacity.
This product is mainly used for power transmission, substation equipment, power grid protection and control. It has the advantages of compact structure, low maintenance, safe operation and long service life, in line with international standards for power equipment.
LN2-40.5
LN2-40.5 is an indoor medium voltage SF6 circuit breaker suitable for 40.5kV (33kV/35kV) AC power systems. It adopts SF6 gas insulation and arc extinguishing technology with reliable operation and long mechanical life.
It is mainly used in high voltage switchgear, power distribution rooms, industrial power supply and urban power grid. The product features compact structure, small installation space, low operation noise and maintenance-free, meeting IEC standards for medium voltage power equipment.
LW□-12
LW□-12 is outdoor medium voltage SF6 circuit breaker specially designed for 12kV (10kV) 50Hz AC power distribution systems. It takes sulfur hexafluoride gas as insulating and arc extinguishing medium, featuring stable breaking performance and outstanding environmental adaptability.
Equipped with reliable spring operating mechanism, this series breaker has small overall size, excellent moisture-proof and anti-aging capacity, suitable for pole installation, rural power grid reconstruction, industrial park power supply and small distribution substation.
The whole product complies with IEC international standards, with low failure rate and long service life, greatly reducing later operation and maintenance cost for power operators.
LW8(A)40.5
LW8(A)-40.5 is a three-phase AC 50Hz outdoor high-voltage SF6 circuit breaker, designed for 40.5kV power transmission & distribution systems. It adopts SF6 as insulation & arc-extinguishing medium, matched with CT14 spring operating mechanism, complying with GB1984 & IEC62271-100 standards.
This breaker provides reliable control & protection for power plants, substations, industrial & mining power systems. It can be used as a tie circuit breaker and for switching capacitor banks, with built-in current transformer for measurement & protection. It features excellent breaking performance, low gas leakage rate (≤1%/year), short arcing time, long mechanical life, compact structure, easy installation & maintenance, and can replace old oil circuit breakers for power grid upgrading.
