Specialized Isolation for DC Transmission Systems
Our High Voltage DC Disconnect Switch is designed specifically for DC power systems. This product covers voltage levels from DC1.5kV to DC500kV. It is used in photovoltaic DC collection stations and battery storage plants. It also serves in converter station DC switchyards. DC disconnectors face unique challenges compared to AC versions. DC current has no zero-crossing point. The arc created during disconnection is much harder to extinguish. Our R&D team designed specialized contact systems for DC operation. We also optimize the arc extinction structure. The switch handles the severe DC arc conditions safely. The voltage range covers everything from low-voltage DC distribution to ultra-high-voltage DC transmission. DC rated current options range from 500A to 3000A. This wide range suits many application types. You can select the right rating for your project needs.
Superior Arc Resistance for Reliable Operation
This High Voltage DC Disconnect Switch uses special contact materials for arc resistance. DC arcs carry high energy and last longer than AC arcs. The contacts must withstand this severe stress. We use specialized alloy materials that resist arc erosion. Our design includes optimized contact shape and opening speed. This optimization minimizes arc burning time and damage. The insulation design also considers DC voltage characteristics. DC systems have more severe pollution and moisture issues than AC systems. Our product has longer creepage distances than equivalent AC voltage products. This extra distance prevents surface leakage and flashover. The insulation system maintains performance under contaminated conditions. We support both manual and motor-operated versions. The motor operation option enables remote control from the control room. This enhances operator safety and convenience.
Application Support for DC Projects
Our High Voltage DC Disconnect Switch comes with full technical support. We understand the rigorous requirements of DC engineering projects. Every unit receives detailed insulation testing and loop resistance measurement. These tests verify performance before shipment. Our team can help with project-specific configuration advice. We support the unique requirements of DC system applications. The GWZ-HVDC series is our dedicated DC disconnect switch product line. It serves the growing DC infrastructure market. Auxiliary switches come standard with each unit. These switches provide open and closed position feedback to the monitoring system. This feedback helps operators know the switch status from remote locations. We provide 12-month warranty coverage from delivery. Choose our High Voltage DC Disconnect Switch for a dedicated and expert DC isolation solution.
Product Parameters
|
Parameter |
Value |
|
Product Series |
GWZ-HVDC Series |
|
Voltage Ratings |
DC1.5kV - DC500kV |
|
DC Rated Current |
500A - 3000A |
|
Core Design |
DC Arc Prevention Structure |
|
Operation Method |
Manual Operation / Motor Operation (Optional) |
|
Typical Applications |
DC Collection Stations, Converter Stations |
|
Warranty Period |
12 months from delivery date |
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