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High Voltage Disconnector 6-220kV - Reliable China Suppliers & Factory for Quality Electrical Solutions
Disconnector
GW4-40.5, 72.5, 126, 145D (W) type isolation relationship three-phase AC frequency 50Hz outdoor high-voltage transmission equipment is used to disconnect or connect high-voltage lines without load, in order to replace high-voltage lines, change operation mode, and implement safe electrical isolation for high-voltage electrical equipment such as busbars and circuit breakers for maintenance.
This product is a double column horizontal fracture center opening type, which can be equipped with grounding switches on either side or both sides. The isolation switch adopts CS14G or CS11 manual operation mechanism or CJ2 motor operation mechanism for three-pole linkage operation; The grounding switch adopts CS14G, CS17G or CS17D manual operating mechanisms for three-pole linkage operation.
Environmental Conditions for Use
Temp: -40 ° C ~ +40 ° C
Altitude: ≤ 2000m
Wind speed: ≤ 34m/s
Ice thickness: ≤ 10mm
Earthquake: ≤ 8 degrees
Pollution: Level III/IV
Key Technical Advantages
Reliable Conductivity
Except for the sliding contact at the fracture, all conductors have fixed connections. Low contact resistance and reliable operation ensure stability.
Except for the sliding contact at the fracture, all conductors have fixed connections. Low contact resistance and reliable operation ensure stability.
High-Strength Arm
Conductive arm is made of rectangular aluminum alloy tubes: high strength, light weight, large heat dissipation area, and excellent anti-corrosion.
Conductive arm is made of rectangular aluminum alloy tubes: high strength, light weight, large heat dissipation area, and excellent anti-corrosion.
Self-Operated Contact Finger
Made of special copper alloy. Eliminates springs to prevent corrosion and annealing cycles. Large connection area with small operating force.
Made of special copper alloy. Eliminates springs to prevent corrosion and annealing cycles. Large connection area with small operating force.
Maintenance-Free Design
Sealed rotating seat prevents water vapor and dust entry. Bearings use molybdenum disulfide lithium grease for long-term smooth operation.
Sealed rotating seat prevents water vapor and dust entry. Bearings use molybdenum disulfide lithium grease for long-term smooth operation.
Frequently Asked Questions
Q1: What is the primary purpose of the GW4 series disconnector?
A: It is used for outdoor high-voltage transmission to disconnect or connect lines without load, providing safe electrical isolation for equipment maintenance and operational changes.
Q2: What types of operating mechanisms are compatible with this equipment?
A: It supports CS14G/CS11 manual or CJ2 motor mechanisms for the isolation switch, and CS14G/CS17G/CS17D manual mechanisms for the grounding switch.
Q3: How does the design ensure low maintenance for rotating parts?
A: The rotating seat features a sealed structure that prevents dust and moisture entry, protecting the internal ball bearings and specialized lithium-based grease.
Q4: What are the benefits of the aluminum alloy conductive arm?
A: The rectangular aluminum alloy tubes offer a balance of high structural strength, lightweight handling, superior heat dissipation, and excellent resistance to environmental corrosion.
Q5: Why are springs eliminated from the contact finger design?
A: By using the elastic force of the copper alloy itself, the design avoids common spring issues like corrosion, shunt heating, and annealing, which typically lead to increased resistance.
Q6: Can this disconnector operate in extreme weather conditions?
A: Yes, it is designed to operate in temperatures from -40°C to +40°C, withstanding wind speeds up to 34m/s and ice thickness up to 10mm.
HEADING-TYPE-1
High voltage parallel capacitors are suitable for parallel connection in AC power systems with power frequency (50Hz or 60Hz) of 1kV and above. They are used to compensate for inductive reactive power, improve power factor, improve voltage quality, reduce line losses, and fully utilize the efficiency of power generation and supply equipment.
description2
HEADING-TYPE-1
High voltage parallel capacitors are suitable for parallel connection in AC power systems with power frequency (50Hz or 60Hz) of 1kV and above. They are used to compensate for inductive reactive power, improve power factor, improve voltage quality, reduce line losses, and fully utilize the efficiency of power generation and supply equipment.
description2