Products

Junray Electrical’s circular residual current transformer is specifically designed for residual current detection in low-voltage power distribution systems. It serves as a core sensing component for electrical fire monitoring, earth leakage protection, and fire-safety power supply monitoring systems. Widely used in commercial buildings, industrial facilities, residential distribution networks, and data centers, it ensures reliable earth leakage monitoring for low-voltage electrical safety.

Junray Electrical is a professional manufacturer and supplier of cable-type piercing current transformers. This cable-type piercing Rogowski coil is an integrated AC current monitoring sensor designed specifically for outdoor scenarios lacking external power sources. It highly integrates an insulation-piercing self-powering module with a flexible, split-core Rogowski coil; it derives operating power by piercing the insulation of the target cable—eliminating the need for additional power wiring—while simultaneously performing precise AC current acquisition.

Junray Electrical’s busbar-type coil current transformer is designed for the electronic measurement of AC current. It utilizes magnetic shielding technology to significantly minimize errors caused by the conductor's position within the aperture or proximity to external conductors. Its cable-tie mounting method simplifies installation—eliminating the need to dismantle busbars—and allows certified electricians to perform compliant "live" installations in low-voltage scenarios, thereby drastically reducing construction costs and downtime losses associated with outdoor power distribution upgrades.

Junray Electrical is a professional manufacturer and factory of PV Combiner Boxes in China. This model supports the combination of up to 24 PV module strings and integrates multiple protection features, including fuses, surge protection devices (SPDs), and circuit breakers. It offers IP65 outdoor protection, intelligent monitoring, and dual power supply modes. Customizable to specific needs, it is widely suitable for DC string combination and protection scenarios in various photovoltaic power plants.

In many large-scale outdoor power distribution scenarios—such as large industrial plants and outdoor substations—the use of dry-type transformers proves cost-prohibitive, and their limited capacity often fails to meet the demands of ultra-heavy loads. The Oil-immersed Distribution Transformer was specifically developed as an economical, high-capacity solution tailored for large-scale outdoor power distribution. Utilizing insulating oil as both a cooling and dielectric medium, it offers a lower cost point compared to dry-type transformers. Perfectly suited for outdoor distribution environments, it stands as the standard, essential equipment for large-scale outdoor power distribution systems.

In many indoor power distribution environments—such as shopping malls, office buildings, and hospitals—oil-immersed distribution transformers are often utilized. However, these units contain insulating oil, resulting in poor fire safety performance and a risk of fire caused by oil leakage; furthermore, they require periodic oil changes and maintenance. In contrast, the dry-type transformer is a fire-resistant unit specifically developed for indoor power distribution applications. Devoid of insulating oil, it features windings encapsulated in epoxy resin and utilizes air cooling, offering exceptional fire safety capabilities. Consequently, it can be installed directly within indoor distribution rooms without the need to construct a separate, dedicated room for oil-immersed transformers. Moreover, it is maintenance-free—requiring no oil changes—making it perfectly suited for indoor distribution scenarios and establishing it as the standard, essential equipment for such environments.