ZW17-40.5Series Outdoor High-volt Vacuum Circuit Breaker

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Loading Port:: Qingdao

Payment Terms:: TT OR LC

Min Order Qty:: 1 unit

Supply Capability:: 300 unit/month

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Specifications

LW30-126 126kv SF6 Circuit Breaker

1 Overview
LW30-126/145/3150-40 SF6 high-voltage AC circuit breaker is of 3-phase 50Hz high-voltage switchgear,used for the control and protection of 126kV/145kV power distribution and transmission system,as well as being used as the network interconnected circuit breaker and in the places switching capacit or bank.
2 Service and Installation Conditions
Ambient temperature: -30°C~+40°C (special order - 50°C~+40°C)
Altitude:≤1000m(No limitation for special order)
Humidity:
Relative humidity at average per day (25°C): ≤95%
Relative humidity at average per month: ≤90%
Saturation vapour pressure: Daily average ≤2.2×10MPa
Monthly average ≤1.8×10MPa
Wind pressure: ≤700Pa
Icing thickness: 10mm
Seismic intensity:
Horizontal acceleration: ≤0.3g
Vertical acceleration: ≤0.15g
Sunshine intensity: 0.1w/cm (at wind velocity of 0.5m/s)
Max. daily temperature rise: 25°C
Symmetrical Creepage distance: 31mm/kV
Protection class: IP54
Keep the breaker away from places with combustible, explosive, corrosive materials and violent vibrations.

Q: What are the general requirements for working on distribution equipment?: When the high voltage line is not cut off, the person in charge of the work shall explain to the whole staff that there is electricity on the line and strengthen the monitoring

Q: AC distribution equipment including distribution box: so there will be in the power distribution cabinet a reference line and a zero line selection of single-phase 6A can switch.

Q: Are electric wires and cables belong to distribution equipment?: Wire rod products for the transmission of electric (magnetic) energy, information and electromagnetic energy conversion.

Q: Distribution system equipment classification: Mechanical equipment is made up of mechanism, power mechanism, transmission mechanism, actuator and control system

Q: Transmission lines are not electrical equipment?: If you are satisfied, please accept it as a satisfactory answer

Q: An introduction to the interpretation of flexible AC transmission systems: The parallel compensation device, such as static var compensator (SVC), thyristor controlled braking resistor (TCBR), static

Q: What is the transmission line, what is the power distribution equipment: Transmission lines generally refers to 110kV and above power lines.

Q: Transmission and transformation equipment: Transmission and transformation of basic electrical equipment, including the main wire, transformers, switchgear, high voltage insulators, etc.

Q: Power distribution equipment should be prepared before the blackout?: electrician received power outage notice, pull down the knife switch, accept fuse.