Digital Intelligent Density Relay

It is used to monitor the density of SF6 gas in enclosed containers, providing on-site display of gas density and triggering an alarm when the measured value reaches a preset threshold. It is suitable for monitoring high-voltage systems and offers a range of solutions, including integration with new substations and retrofitting of existing ones.

High-Voltage Live Display Device

[Reliability] The sensor features a fully sealed structure, with its internal circuitry treated for moisture resistance. Both the device housing and mounting components undergo processes to ensure protection against rain, moisture, dust, and rust. The sensor offers a wide voltage‑sensing range and delivers stable performance. After undergoing a 72‑hour aging test, the product demonstrates reliable operation. [Cost‑Effectiveness] No partial discharge testing is required; installation is simple and convenient. Power is supplied via an air switch, with electronic fuses providing protection—eliminating the need to replace fuses. Routine operation requires no maintenance, ensuring safe and dependable use. [Applicability] The device can be interlocked with electromagnetic locks, mechanical program locks, electrical interlocks, microcomputer‑based anti‑misoperation interlocks, and more. It is widely suitable for outdoor and indoor applications, as well as GIS switchgear and switchgear cabinets operating at 35 kV to 550 kV, and is easy to install. [Safety] The device does not come into direct contact with live parts, and no power outage is required during installation, thereby eliminating the risk of insulation breakdown and safeguarding personal safety.

Digital Intelligent SF6/N2 Mixed-Gas Density Relay

It is used to monitor the density of SF6/N2 gas in enclosed containers, providing on-site display of gas density and triggering an alarm when the measured value reaches a preset threshold. It also enables real-time remote transmission of SF6/N2 gas density data, supporting online remote monitoring. This device is suitable for monitoring high-voltage systems and offers a range of solutions, including integration with newly built substations and intelligent upgrades for existing ones.