Switchgear: VFI underground distribution switchgear from Cooper Industries

Switchgear safety products utility safety VFI underground distribution switchgear Cooper Industries

Utility safety: VFI vacuum fault interrupter underground distribution switchgear is versatile in application and provides a safer, more reliable, and environmentally preferred approach to switching and protection requirements for 15, 25, and 35 kV systems.

Climate change and the ecological impact of industrial operations have increased concerns and actions of business and government. Thought leaders are using this as an opportunity to enhance their operational performance and promote responsible corporate stewardship, increasing the demand for sustainable products and solutions.

Cooper Power Systems has been a leader in addressing these issues by developing biodegradable liquid dielectric products for more than 25 years. Envirotemp™ FR3™ fluid is a vegetable oil-based dielectric fluid used extensively in transformer applications globally. Biodegradable E200™ is a clear, low-viscosity fluid with excellent thermal and dielectric properties across the full temperature range for switchgear. Combined with a fire point greater than 300 °C, this makes E200 ideally suited for switchgear applications.

E200 fluid is the environmentally preferred choice for VFI switchgear because it eliminates the need for SF6 gas. Identified as one of the most potent greenhouse gases by the United States Environmental Protection Agency, one pound of SF6 gas has the same global warming impact as 11 tons of CO2. Relatively low emissions of SF6 may have a large and lasting impact.

Load and fault interruption in SF6 also produces toxic by-products. With VFI switchgear, all interruption takes place within sealed vacuum interrupters, independent of the dielectric medium. This eliminates the added cost and complexity of special safety regulations and protocols associated with SF6 switching by-products.

Cooper Power Systems VFI underground distribution switchgear helps avoid potential regulatory burdens and added life-cycle costs and is the responsible way to promote sustainable operations and a green supply chain.

The dead-front construction of VFI underground distribution switchgear provides added safety for utility and maintenance personnel. Inside, all terminations are insulated rubber connectors with surfaces at ground potential. All high voltage bus work and internal parts are completely immersed within a sealed insulating dielectric medium. This not only provides a safer working environment, but also eliminates the contamination problems of moisture, dirt, and wildlife commonly associated with air-insulated switchgear.

Available side-mounted operators eliminate the need to stand in front of equipment and limit exposure to the high-voltage compartment. Because here is no need to enter this area, routine switching can be performed without entering the high-voltage compartment. In addition, all switches, interrupters and components are hot-stick operable, increasing the distance to the high-voltage area.

The optional visible-break switch with viewing window verifies an open circuit without removing the cables. Large, easily viewed contacts show the open/close position of the visible-break switch. A switch having a cable ground position is also available. With these options, there is no doubt that a circuit is open, closed, or grounded.

•    Environmentally preferred
•    E200™ fluid is the SF6-Free dielectric medium of choice
•    Obsoletes potent greenhouse gas (SF6) equipment
•    Eliminates costs of compliance with increasing government regulations
•    Vacuum switching never contaminates the insulating medium
•    Operator Safety
•    100% dead-front construction
•    Visible-break and grounding switches are available options for added safety

For more information about Cooper Industries or other switchgear, click here to go to Utility Products’ Buyers Guide.

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