DIGITAL DENSITY RELAY

"Digital gas density relay monitors and controls SF6 gas density in sealed containers, used in SF6 high-voltage switchgear and other gas-insulated equipment. Uses bellows compensation for high-precision measurement. Equipped with multiple micro-switch contacts for alarm, lockout, or overpressure reporting. Also features data communication for real-time transmission to backend systems. Backend big data analysis can detect leakage trends and abnormalities in advance
Note: This translation was generated by AI for reference only."

NEW GENERATION INTELLIGENT DENSITY RELAY WITH SELF-DIAGNOSIS FUNCTION

During operation, conventional density relays are prone to performance degradation—such as reduced accuracy, mechanical jamming, and contact failure—posing potential safety risks. Consequently, they require periodic calibration; however, manual calibration is labor‑intensive and inefficient. The next‑generation intelligent density relay, equipped with self‑diagnostic capabilities, features a highly integrated mechanical–digital module design. Its meter incorporates an embedded self‑learning diagnostic data model, enabling real‑time sensing, monitoring and early warning, as well as analytical diagnostics. Via the intelligent control unit and pressure‑regulation unit, it can perform online verification of the actuation thresholds for mechanical alarms and lockout contacts, ensuring maintenance‑free operation throughout its entire lifecycle and enabling fully autonomous, smart monitoring without human intervention.

INSULATING GAS ONLINE MONITORING SYSTEM

The online insulation‑gas monitoring system uses sensors installed within gas compartments to continuously measure and track key parameters—such as temperature, pressure, density, and trace moisture—in SF6 gas inside circuit breakers, GIS equipment, and other electrical devices, along with their trend changes. It automatically uploads this data to a backend system, enabling real-time monitoring of insulation‑gas density, moisture levels, and other critical variables. The system also allows flexible configuration of alarm thresholds, on‑site access to historical data, and precise analysis of gas‑leak trends and leakage rates, facilitating early detection of abnormal conditions. This ensures the safe and reliable operation of electrical equipment and the entire substation system, truly realizing online monitoring for substations and unattended stations.