Introduction
The LWâ?¡-252/4000-50 self-extinction Ac circuit breaker which is outdoor type finds its universal range of applications for the electrical system with elevation not greater than 2000m, ambient temperature not lower than-30C, dirtiness grade not higher than IV, alternating current 50Hz and the maximum voltage 126kV. It is used for cutting the rated current, malfunction current or switching the circuitry, to control and protect the electrical system, and it can also be used for connecting with the circuit breaker
The gas of the SF6 is employed as the arc-extinguishing medium and the dielectric material. The self-extinction technology and the new-type spring operating mechanism are introduced in the SF6 circuit breaker. Thus the circuit breaker has good qualities with long electrical life, low operation power, lower noise, high reliability, simple structure, small and long overhaul periods. It can fully replace the import same type one.
Caracteristic of structure
The breaker introduces the three-phase porcelain -pole with single interrupter structure. A spring operating mechanism is supplied and the mechanical action of the three-phase is inner connected. The gas of the SF6 is connected in the three-phase pole parts. A density controller with temperature compensation is used to monitor the gas of the SF6. Because of the self-extinction arc control principle and optimized design, it improves the efficiency of mechanism and reduces the operating power
Excellent breaking performance and long electrical life
High mechanism reliability and can be operated frequently
Because of the high insulation intensity and excellent contact movement, the breaking capacity current will not re-burn
The circuit breaker has high outer insulation level and ratio creepage distance is greater than. So it has excellent performance of resisting the filth and the earthquake, it is also can be operated safely under the environment with atrocious weather
High carrying ability: it has high capability margin as the temperature of each contact rises when it is under temperature rise test in the circuit (1.2 times 0f 4000A)
The appearance of the breaker is compact, and the installation and debugging is very easy. The maintenance is also very convenient
Enclousers & Breakers
Circuit breakers Lw-252 high voltage sf6 circuit breaker type Lw8a-40.5 outdoor porcelain post hv sf6 circuit breaker Lw36-126 high voltage sf6 circuit breaker Zn28-12 series indoor ac medium-voltage vacuum circuit breaker Zn63a-12 series indoor ac medium-voltage vacuum circuit breaker Nv1-24 series indoor ac high-voltage vacuum circuit breaker 252kv gis Lw3-12 outdoor ac medium-voltage sf6 circuit breaker Zw8-12 series outdoor ac medium-voltage vacuum circuit breaker Zw8-12(z) series outdoor intelligent ac mv vacuum circuit breaker Zw32-12 outdoor ac hv vacuum circuit breaker
HVD8 /LW8-40.5 type outdoor high-pressure sulfur hexafluoride circuit breaker is three-pole ac 50 hz, outdoor high voltage switch equipment, applicable to 40.5 kV power transmission and distribution system control and protection, can also be used to contact circuit breaker and movable capacitor group.
DZ47 AC MCB circuit breaker series is used in lighting distribution system or motor distribution system for protecting overload and short-circuit condition. The product is light in weightreliable and excellent in performance. It has high breaking capacity up to 6kA. Its case and items are adopted with high fire-resistant and shock proof plastics. Mainly used in AC 50/60Hz single-pole 230V or two three four-pole 400V circuit for overload and short circuit protection as well as for on-off switching electric equipment and lighting circuit. The product complies with EN/IEC60898. Rated current(In) 1A, 2A, 3A, 4A, 6A, 10A, 13A, 16A, 20A, 25A ,32A ,40A, 50A, 63A, 100A Optional Rate voltage(Un) 230VAC / 415VAC / 400VAC / 415VAC Optional Breaking capacity 6kA Rated frequency 50/60Hz Tripping charateristics BCD Number of poles 1P, 2P, 3P, 4P, 1P+N, 3P+N Optional Rated impulse withstand voltage(Uimp) 4kV Electrical endurance 10000cycles Mechanical endurance 10000cycles Terminal Pillar type
WSD-ZW32-24D Outdoor AC high voltage vacuum circuit breaker (hereinafter referred to as circuit breaker) is a rated voltage of 24 KV, 50 HZ three-phase AC outdoor distribution equipment.The utility model has the advantages of stable and reliable interruption performance, no danger of combustion and explosion, maintenance-free, small size, light weight and long service life.It is mainly used for breaking and closing the load current, overload current and short circuit current in power system.It is suitable for protection and control in power distribution systems of substations and industrial and mining enterprises, and more suitable for rural power grids and frequently operated places. This product meets GB1984-2003 "High Voltage AC Circuit Breakers" and DL/T402-2007 "Technical Conditions for Order of High Voltage AC Circuit Breakers" and DL/T403-2000 "Technical Conditions for Order of 12 kV~40.5 kV High Voltage Vacuum Circuit Breakers" and other technical standards.
CHARACTERISTICS 1. The vacuum arc extinguishing chamber uses longitudinal magnetic field arc extinguishing technology, which has the characteristics of long electric life and high reliability. 2. The imported silicone rubber/epoxy resin for outdoor use and the present APG vacuum injection technology are adopted. 3. Anti-ultraviolet, moistureproof, anti-corrosion, with the advantages of preventing surface discharge, good hydrophobicity and high mechanical strength. 4. Using simple and reliable spring operating mechanism, it has the advantages of small size and light weight. 5. high voltage vacuum circuit breaker can be equipped with isolation switch and three-phase linkage. It has visible breaks when the isolation switch is switched off. It also has anti-mistake interlock between the isolation switch and the circuit breaker body. It can be equipped with arrester strut insulators. Operational sequence When operating the disconnector, the first step is to confirm that the circuit breaker should be in the open state. Use the insulated tie rod hook to fasten the closing pull ring or the opening pull ring of the operating handle of the isolation closure, pull down slightly, drive the spindle to rotate, open or close the isolation switch. When the spindle rotates the dead point position of the compression spring, a certain tension is maintained so that the blade can be reliably closed or opened to a safe isolation position.
S280 3 phase ac power circuit breaker is mainly used for special occasions where two main circuits can not work at the same time. To prevent the simultaneous closing of the circuit breaker, the product can switch the line safely and quickly. It realize the switching between stand-by power supply circuits and other protection functions. Iiâ??s mainly used in the overload protection and short-circuit protection of the circuit which is DC 50Hz/60Hz, 1 pole230v, 2/3/4 poles DC1000V.
C65 C60 mini circuit breaker AC MCB is used in lighting distribution system or motor distribution system for protection overload and short-circuit in the system. The product is neoteric in structure, light in weight, reliable and excellent in performance. It has high breaking capacity, can trip quickly, and its case and items are adopted by high fire-resistant and shockproof plastics. The product, with long life, is mainly used in AC 50Hz/60Hz single pole 230V or two, three, four poles 400V circuit for overload and short-circuit protection as well as for infrequent on-and-off switching electric equipment and lighting circuit in normal case. The products comply with IEC 60898.
Circuit breaker The circuit breaker mainly serves for protecting the circuits of ac 50 hz, 230vof single pole, 230v/400v of two poles and 400v of three or four poles from overload or short-circuit, and also for unfrequent making and breaking electrical apparatus and lighting circuit. Packed in export cartons
