HV Switchgear

For power project procurement, complex on-site construction and tight schedules are common challenges.Kechang's HV switchgear uses a fully modular prefabricated design. Circuit breakers, busbars, control units and other modules are fully integrated and tested in the factory. Once delivered to the site, only basic fixing and cable connection are needed, with installation and commissioning completed within 3 days, shortening the construction period by more than 60% compared with traditional on-site assembly.

Modules adopt standardized quick-plug interfaces, allowing flexible capacity expansion later without modifying the original main circuit. It is especially suitable for rush projects such as new energy power stations and urban distribution network renovation.This high efficiency is the core advantage of Kechang's prefabricated modular switchgear.

This equipment is designed for harsh environments including high‑altitude mountains, coastal salt‑spray regions, and dusty industrial zones. It features an IP54 protection rating with a 3.0 mm corrosion‑resistant galvanized steel enclosure, sealed welding, and multi‑layer anti‑corrosion treatment, effectively blocking dust, moisture, and corrosive gases.

It operates stably from −40 °C to 45 °C and supports full capacity at altitudes up to 4,000 m without derating, ensuring reliable performance in cold, windy areas like Xinjiang and Tibet.

The internal insulation uses Class H (180 °C) materials, with key components vacuum‑cast in epoxy resin for long‑term high‑temperature resistance and low aging, perfectly suited for IP54 harsh‑environment switchgear applications.

Short-circuit faults and arc flash risks are always major concerns during grid operation, and they're also key factors we consider when selecting power equipment.Our HV switchgear uses a high-performance vacuum interrupter with transverse magnetic field technology. It can extinguish the arc within 20 milliseconds and break short-circuit currents over 40 kA, effectively preventing faults from spreading further.

All key parts have passed strict partial discharge tests, with the PD level controlled below 10 pC. This helps avoid insulation aging and provides reliable protection for the safe and stable operation of the power grid.

On-site inspections for remote projects are often time-consuming and labor-intensive, and traditional operation and maintenance cannot identify hidden risks in advance.

Through the MODBUS/RS485 protocol, the device can connect to a remote monitoring platform. Users can check equipment status and view fault records anytime in the control room, shifting from breakdown maintenance to predictive maintenance. This cuts on-site inspection workload by 80% and greatly lowers operation and maintenance costs, which is the core value of our intelligent remote monitoring switchgear.

Different projects often have different voltage levels, installation spaces, and functional requirements, so standard products can hardly meet every actual demand.
Kechang provides full customization for 6kV–35kV voltage levels and 630A–3150A rated current. We can flexibly adjust cabinet dimensions, installation methods (vertical/horizontal), wiring types (copper bar/cable terminal).
Our engineering team offers complete technical solutions and quotations within 48 hours. All products comply with IEC 60076, IEEE, CE international certifications, suitable for global markets.
We provide a 18‑months warranty and lifetime technical support, with a full set of quality inspection reports for each unit. This reliable customized solution brings certainty and peace of mind to your power project.