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LW36-72.5 Series Outdoor HV SF6 Circuit Breaker:
LW36-72.5 Series Outdoor HV SF6 Circuit Breaker:
LW36-72.5 Series Outdoor HV SF6 Circuit Breaker:
LW36-72.5 Series Outdoor HV SF6 Circuit Breaker:
LW36-72.5 Series Outdoor HV SF6 Circuit Breaker:
LW36-72.5 Series Outdoor HV SF6 Circuit Breaker:
LW36-72.5 Series Outdoor HV SF6 Circuit Breaker:
LW36-72.5 Series Outdoor HV SF6 Circuit Breaker:
LW36-72.5 Series Outdoor HV SF6 Circuit Breaker:
LW36-72.5 Series Outdoor HV SF6 Circuit Breaker:

LW36-72.5 Series Outdoor HV SF6 Circuit Breaker:

The LW36-72.5 Series Outdoor High Voltage SF6 Circuit Breaker is an essential component in the power distribution landscape, designed to ensure the reliable and secure operation of electrical networks. These breakers are tailored for outdoor applications and are built to endure a range of environmental conditions, offering precise control over the flow of electrical power.
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Product Description

Structural Features

  1. SF6 Gas Chamber: The core component for reliable current interruption and arc suppression.
  2. Outdoor Enclosure: Fortified to shield the breaker from environmental impacts, ensuring consistent long-term performance.
  3. Status Indicators: Offer clear visual signals for breaker status, simplifying monitoring and maintenance.
  4. Easy Integration: Compatible with a range of grid components and control systems for seamless network integration.

Functionality

  1. Circuit Interruption: Engineered to safely interrupt both fault and normal currents within an electrical system, providing vital protection.
  2. Arc Suppression: The use of SF6 gas ensures effective arc-quenching, leading to a safer operation and less frequent maintenance.
  3. Outdoor Resilience: Constructed to withstand outdoor elements such as rain, dust, and extreme temperature variations.

Service and Installation Conditions:

  • Ambient Temperature: The equipment should be operated in environments with ambient temperatures ranging from -30°C to +40°C. For special orders that require operation within the range of 40°C to +40°C, this should be specified at the time of order.
  • Elevation: The installation should not exceed an altitude of 1000 meters. For installations that are above 1000 meters, this value must be indicated in advance.
  • Humidity: The daily average relative humidity should be ≤95%, and the monthly average should be ≤90% (measured at 25°C).
  • Wind Speed: The breaker is designed to withstand wind speeds of up to 35 m/s.
  • Creepage Distance: The required creepage distance is either 25 mm per kV or 31 mm per kV, depending on the specifications.

Specifications

Item Unit Specification
Rated voltage kV 126 / 145
Rated insulating level Lightning impulse withstand voltage (1.2/50 μs) kV 650 / 550
Power frequency withstand voltage (1min) kV 300 / 230
Rated current A 2500/3150 / 4000
Rated short circuit withstand/breaking current kA 31.5 / 40 / 50
Maximum short-circuit current kA 80 (1000 / 125)
Making current kA 82 / 1000 / 125
Out-of-phase breaking current kA 8 / 10 / 125
Rated SF6 pressure (20°C REL) MPa 0.40 / 0.50
Lockout pressure (20°C REL) MPa 0.30 / 0.40
Breaking times of the rated short circuit withstand/breaking current Times 20
Mechanical life Times 1000
Closing time (under rated operating voltage) S 0.06
Rated operating sequence O-0.3s-CO-180s-CO
Switching single capacitor bank current A 400
Rated short-circuit duration S 4
Annual leakage %Year ≤0.3
Moisture content of SF6 (20°C) uL/L ≤150
Voltage of stepping and charging V AC: 220 / 380 DC: 48 / 110 / 220
Voltage of charging motor V AC: 220 DC: 110 / 220

Product Advantages

  • 1. Superior Safety Features: The cutting-edge SF6 gas technology embedded in the LW36-72.5 Series Circuit Breaker ensures exceptional dielectric strength, crucial for withstanding high voltages, and superior arc-quenching capabilities, which are vital for safe circuit interruption.
  • 2. Minimal Maintenance Needs: Thanks to the inherent stability of SF6 gas, the LW36-72.5 Series requires minimal upkeep, translating to reduced long-term maintenance costs and increased operational efficiency.
  • 3. Eco-Friendly Operation: This circuit breaker is engineered to function optimally across various environmental conditions, showcasing its adaptability and commitment to environmental performance without any compromise on its effectiveness.
  • 4. Durable and Compact Construction: The design of the LW36-72.5 Series is not only robust, making it ideal for challenging outdoor deployments, but also compact, which is perfect for urban installations where space is at a premium.
  • 5. Advanced Safety Mechanisms: The LW36-72.5 Series incorporates advanced SF6 gas technology, offering robust dielectric properties and efficient arc-quenching performance, ensuring the safety and reliability of high-voltage electrical systems.
LW36-72.5 Series Outdoor HV SF6 Circuit Breaker:

Application Places

  • Urban Power Distribution: Ideal for densely populated areas where the reliability and safety of power supply are critical.
  • Industrial Power Management: Provides the high reliability and safety standards needed for continuous industrial power operations.
  • Rural Electricity Provision: Ensures stable power supply in remote areas with tough environmental conditions.
  • Substation and Grid Interconnections: Essential for the control and protection of power flow in substations and grid interconnections.

Packing

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Faq

  • 1. How does the LW36-72.5 Series Circuit Breaker ensure superior safety?

    It utilizes advanced SF6 gas technology that offers outstanding dielectric strength and arc-quenching capabilities, ensuring safe operation under high voltage conditions.

  • 2. Is the LW36-72.5 Series Circuit Breaker suitable for both urban and challenging outdoor settings?

    Yes, with its robust and compact design, it is ideal for installations where space is limited, such as urban areas, as well as for applications in tough outdoor environments.

  • 3. What kind of operational reliability can be expected from the LW36-72.5 Series Circuit Breaker?

    Due to its advanced safety mechanisms and robust construction, the circuit breaker offers high reliability and a long service life.

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