China 6-220kV High Voltage Disconnector Suppliers | Reliable Factory Manufacturing Quality Disconnectors
GW4-40.5, 72.5, 126, 145D (W) 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
Technical Features & Advantages
Optimized Conductive Circuit
The entire conductive circuit, except for the sliding contact at the fracture, has fixed connections between other conductors such as the outlet end, contact head, and between the contact finger and conductive arm, ensuring low contact resistance and highly reliable operation.
High-Strength Conductive Arm
The conductive arm is manufactured using premium rectangular aluminum alloy tubes. This structural choice provides high mechanical strength, light weight, a large heat dissipation area, and excellent anti-corrosion performance.
Self-Operated Contact Finger Design
Made of a special copper alloy, the self-operated contact finger relies entirely on its own elastic force to clamp the contact. By eliminating the contact finger spring, it avoids the vicious cycle of reduced clamping force, increased contact resistance, and intensified contact heating caused by spring corrosion, shunt heating, and annealing. The contact is bent from copper plate, offering a large connection area with the conductive arm. During operation, the friction stroke is short and the operating force is minimal.
Maintenance-Free Rotating Part
The rotating seat features a completely sealed structure that prevents water vapor, dust, and harmful gases from entering, thereby protecting the internal molybdenum disulfide lithium-based lubricating grease from loss or solidification. Inside, the bearing seat houses thrust ball bearings and radial ball bearings that bear the gravity and horizontal forces, ensuring the operating torque remains constant and does not increase after long-term operation.
Frequently Asked Questions
What is the primary function of the GW4 series disconnector?
Which operating mechanisms are compatible with this equipment?
What are the environmental limits for this disconnector?
What are the advantages of the conductive arm material?
How does the self-operated contact finger eliminate spring-related failures?
Why is the rotating part of the isolation switch maintenance-free?
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.
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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