Xi'an's best ZW7-40.5/1250-31.5

< r>: .>
: .>, < >Outdoor high-voltage vacuum circuit breaker series model:
: .>Xi'an's best
: .>.
: .> <:><:>
< r>: .>
< r>: .>,,.,,.
: .><:><:>
< r>: .>< >,
: .>Overview:
: .>.
: .><:><:>
< r>: .>< > Outdoor high-voltage vacuum circuit breaker is used in three-phase power systems of AC < > and .< > 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".
: .>The best in Xi'an
: .>.
: .><:><:>
< r>: .>
: .>, < >Introduction to the vacuum tube of outdoor high-voltage vacuum circuit breaker
: .><:><:>
< r>: .> >The vacuum arc extinguishing chamber equipped with the circuit breaker 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, they have the characteristics of large breaking capacity, high insulation level, strong arc extinguishing ability, long life, small size, simple maintenance, and no explosion hazard. , no pollution, low noise and other advantages. 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".
: .><:><:>
< r>: .>
: .>The best in Xi’an
: .>.
: .>< :><:>
< r>: .>
: .>, < >Normal usage conditions of outdoor high-voltage vacuum circuit breaker
: .><:><:>
< r>: .>.< >Ambient air temperature: Upper limit: +
: .>℃
: .>Lower limit: General areas
: .>℃
: .> , alpine areas
: .>℃
: .>
: .><:><:>
< r>: .>.< >The altitude does not exceed< >< br/>: .><:><:>
< r>: .>.< >Wind pressure does not exceed (< >corresponds to wind speed)< >
: .><:><: >
< r>: .>.< >The seismic intensity does not exceed < >degree
: .><:><:>
< r>: .>.< >Air pollution level
: .>Ⅲ
: .>Level
: .><:><:>
< r>: .> >Note: Beyond the above regulations, the user shall contact the manufacturer Negotiate.
: .><:><:>
< r>: .>
: .>.
: .><:><:>
< r >: .>
: .>,< >Instructions for ordering outdoor high-voltage vacuum circuit breakers:
: .><:><:>
< r>: .> >When ordering, please Indicate on the contract:
: .><:><:>
< r>: .>.< >Product model and name.
: .><:><:>
< r>: .>.< >Mechanism type (manual or electric)
: .><:><:>
< r>: .>.< >If the electric mechanism is used, please indicate the rated voltage of the closing and opening coils and the energy storage motor (< >)
: .><:><:>
: : .>.< >If you need a transformer overcurrent protection device, please indicate the transformer current ratio
:: .>The best in Xi'an
:: .>.