LW30-126 126kv SF6 Circuit Breaker withoperating mechanism

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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)
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
Symmetrical Creepage distance:  31mm/kV
Protection class: IP54
Keep the breaker away from places with combustible, explosive, corrosive materials and violent vibrations.


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Q:What is the transmission line, what is the power distribution equipment
Distribution equipment is generally referred to as the distribution lines and distribution substations (usually 35kV and below).
Q:Main equipment of high voltage direct current transmission
Converter also known as converter valve is the key equipment in the converter station, its function is to achieve rectification and inverter
Q:What is the difference between power supply and distribution
Power supply and distribution is part of the use of general by the Architectural Design Institute of electrical professional
Q:What are the distribution network equipment
Electricity and other energy sources, its main features are: cannot be stored in large scale, power generation, transmission, distribution and consumption at the same instant
Q:Rural high voltage transmission line equipment ownership
You do not want to what the transformer behind the high-voltage line,
Q:AC distribution equipment including distribution box
Connect the power supply, transformer, converter and other equipment for load distribution box, and monitoring
Q:Are electric wires and cables belong to distribution equipment?
Distribution equipment (Electrical Equipment) is in the electric power system of HV switchgear, generator, transformer, power circuit, circuit breaker, low voltage switch cabinet, distribution board, switch box, control box and other equipment collectively.
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:DC transmission equipment
Power supply operation of power plant and substation in nowadays are used in DC power supply, it provides power for the control of the load and power load and DC emergency lighting load, is the foundation of modern electric power system control and protection
Q:Transmission system and distribution system
Simply put, you can distinguish between the end of the cable to the use of electrical equipment (motor, power box) is the distribution system to the substation, transformer is the transmission system

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