GW4-27.5/6000-JZ AC/DC Disconnector (6000A)
AC/DC dual-purpose outdoor disconnector (1.5kV DC / 27.5kV AC, 6000A) for rail transit test tracks.
Specifications
| Model | GW4-27.5/6000-JZ |
|---|---|
| Standard | GB 1985-2014 HV AC disconnectors and earthing switches; TB/T railway industry standards |
| Rated Voltage | AC 27.5kV / DC 1.5kV (dual-purpose) |
| Rated Current | 6000A |
| Design Speed | N/A (fixed installation equipment) |
| Operating Temperature | -40°C to +70°C |
| Altitude | ≤ 4,000 m |
| Materials | Hot-dip galvanized steel frame; copper alloy contacts; high-strength post insulators; dedicated AC/DC contact system |
| Installation | Independent foundation mounting at the supply changeover point; manual or motorized operation |
The GW4-27.5/6000-JZ is an AC/DC dual-purpose outdoor disconnector developed for rail transit test tracks, where the same line must be switched between AC (27.5kV) and DC (1.5kV) power supply for vehicle testing. Its 6000A rating handles the high currents involved in test operations.
The switch combines AC and DC switching capability in one outdoor unit with a dedicated contact system for reliable breaking in both modes. The hot-dip galvanized steel frame, copper alloy contacts and high-strength post insulators support service from -40°C to +70°C at altitudes up to 4,000 m.
Installation is on independent foundations at the test track supply changeover point, with manual or motorized operating mechanisms available.
This is a project-engineered product: contact Henan Chuangwit Railway Equipment Co., Ltd. with your test track parameters for configuration and pricing.
Frequently Asked Questions
Why does a test track need an AC/DC dual-purpose switch?
Vehicle test tracks may need to supply rolling stock with either 27.5kV AC or 1.5kV DC. A dual-purpose disconnector handles the changeover safely at up to 6000A without separate AC and DC switchyards.
What is the rated current?
6000A, suitable for high-current test operations.
How do I order this product?
It is project-engineered — send your test track voltage levels, current and layout to info@chuangwit.com for a configuration proposal.
Performance
Operating Conditions
Outdoor test track service from -40°C to +70°C, altitudes to 4,000 m, with frequent changeover switching.
Mechanical Performance
Heavy-duty 6000A-rated frame and contacts engineered for repeated AC/DC changeover duty.
Electrical Performance
Dual-mode contact system provides reliable breaking in both 27.5kV AC and 1.5kV DC operation.
Applications
Test Tracks
AC/DC supply changeover for vehicle testing.
High Current
6000A rating for heavy test loads.
Outdoor Service
Galvanized structure for open-air duty.
Cold Regions
Operation down to -40°C.
