The lowest price in Xi'an ZW7-40.5/1250-25

< r>: .>< >Overview of outdoor high-voltage vacuum circuit breaker:
: .>The lowest price in Xi'an
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< r>: .>< >Outdoor high-voltage vacuum circuit breaker is used in three-phase power systems of AC< >, .< > to divide and combine load current, overload current and short-circuit current. This circuit breaker complies with the requirements of the national standard B < > "AC High-voltage Circuit Breaker" and the International Electrotechnical Commission Standard < > "High-Voltage AC Circuit Breaker".
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: .>Outdoor high-voltage vacuum circuit breaker series model:
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< r>: .>3.< >Outdoor high-voltage vacuum circuit breaker Main features:>
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< r>: .>.< >Using vacuum arc extinguishing, strong breaking capacity, long electrical life, mechanical life< >times< br/>: .><:><:>
< r>: .>b.< >Simple structure, maintenance-free, long maintenance cycle
: .><:><:>< br/> < r>: .>.< >Good insulation performance and strong anti-pollution ability
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< r>: .>.< >Can be equipped with spring or Electromagnetic operating mechanism, reliable mechanical performance, frequent operation, no fire and explosion hazard
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< r>: .>.< >Built-in current transformer measurement accuracy Up to.< The circuit breaker operates reliably under a certain temperature and humidity. >
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< r>: .>.< >Within remote control with safety< >.
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< r> : .>4. < >Working principle of outdoor high-voltage vacuum circuit breaker
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< r>: .>The structure of this circuit breaker is a porcelain bottle pillar type, and the upper porcelain bottle is an extinguisher. The arc chamber porcelain bottle is equipped with a vacuum arc extinguishing chamber. The lower porcelain bottle is a supporting porcelain column. The three-phase porcelain bottles are mounted on a structural box. The moving end of the arc extinguishing chamber is connected to the output shaft of the spring mechanism through a crank arm and an absolute tie rod. The spring mechanism and the link connecting the circuit breaker are in a waterproof mechanism box. This product is mainly composed of vacuum arc extinguishing chamber, current transformer, transmission mechanism and spring operating mechanism.
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: .>The lowest price in Xi’an
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< r>: .>5. < >Introduction to outdoor high-voltage vacuum circuit breaker vacuum tube
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:: .>< >Circuit breaker configuration The vacuum arc extinguishing chamber equipped has extremely high vacuum degree. Because the arc extinguishing chamber contacts are made of r< > material and adopt a cup-shaped longitudinal magnetic field structure, it has large breaking capacity, high insulation level, strong arc extinguishing ability, It has the characteristics of long life, small size, simple maintenance, no pollution and low noise. The vacuum arc extinguishing chamber is installed in the upper porcelain bottle, which not only avoids many disadvantages caused by oil flushing and gas filling, but also makes inspection and maintenance more convenient. The insulating material silicone is used between the arc extinguishing chamber and the porcelain bottle. To solve the problem of anti-condensation, this insulation material has the characteristics of good insulation performance, aging resistance, outdoor resistance and high temperature resistance. The < > outdoor AC high-voltage vacuum circuit breaker is a three-phase AC < > outdoor high-voltage switchgear. It is suitable for the control and protection of < > power transmission and distribution systems. It is used to break and close load currents and break short-circuit currents. The circuit breaker complies with B< > "AC High Voltage Circuit Breaker".
: b>The lowest price in Xi’an
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