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145KV Outdoor high-voltage SF6 open type combination electrical appliances

145KV Outdoor high-voltage SF6 open type combination electrical appliances

The 145KV Outdoor high-voltage SF6 open type combination electrical appliances stands out as an integrated electrical device specifically designed for high-voltage power transmission and distribution systems. Its unique composition includes circuit breakers, disconnectors, earthing switches, current transformers, voltage transformers, and surge arresters, all enclosed in a metal housing filled with sulfur hexafluoride (SF6) gas, a highly effective insulating medium.

Model:ZCW30-145/1600-31.5

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Product Definition:

The outdoor high-voltage SF6 open-type combined apparatus stands out as an integrated electrical device specifically designed for high-voltage power transmission and distribution systems. Its unique composition includes circuit breakers, disconnectors, earthing switches, current transformers, voltage transformers, and surge arresters, all enclosed in a metal housing filled with sulfur hexafluoride (SF6) gas, a highly effective insulating medium.

Working Conditions and Environment:

The SF6 open-type combined apparatus is designed to operate reliably in a wide range of environmental conditions, including:

- Ambient temperature: -40 ° C to +55 ° C.

- Altitude: Up to 2000 meters above sea level.

- Humidity: Up to 95% relative humidity.

- Pollution degree: Up to Class IV according to IEC standards.

- Seismic conditions: Designed to withstand seismic forces as per relevant standards.

Product Features:

- High reliability and safety due to SF6 gas insulation.

- Compact design with reduced footprint.

- Easy maintenance and operation.

- Long service life with minimal maintenance requirements. - Environmentally friendly as SF6 is a non-toxic, non-flammable gas with a high global warming potential (GWP).

- High resistance to environmental pollution and harsh weather conditions.

Product Parameters:

- Rated voltage: Typically ranges from 72.5 kV to 550 kV.

- Rated current: Varies depending on the application, typically from 1250 A to 4000 A.

- Rated short-circuit breaking current: Up to 63 kA.

- Rated short-time withstand current: Up to 63 kA for 3 seconds.

- Rated peak withstand current: Up to 170 kA. Components and Construction:

- Circuit Breaker: Designed to interrupt fault currents and perform switching operations.

- Disconnector: Used to isolate the circuit for maintenance purposes. - Earthing Switch: Provides a safe grounding point for the circuit.

- Current Transformers (CTs): Used for measuring current in the circuit.

- Voltage Transformers (VTs): Used for measuring voltage in the circuit.

- Surge Arresters: Protect the equipment from voltage surges.

- SF6 Gas System: Ensures proper insulation and arc quenching within the apparatus.

Application Range:

- Substations for power generation, transmission, and distribution.

- Industrial power systems.

- Renewable energy integration (e.g., wind farms, solar parks).

- Urban and rural power distribution networks.

Installation Method:

- The installation process involves several steps:

1. Site preparation: Ensuring a level and stable foundation for the apparatus.

2. Assembly: Connecting the various components according to the manufacturer's instructions.

3. Gas filling: Filling the SF6 gas to the specified pressure.

4. Testing: Conducting electrical and mechanical tests to ensure proper operation.

5. Commissioning: Final checks and adjustments to ensure the apparatus is ready for operation.

The outdoor high voltage SF6 open-type combined apparatus plays a pivotal role in modern power systems, providing not only reliable and efficient operation but also ensuring safety and environmental protection, a responsibility we take seriously.

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