OM.R900 Transformer Bushing Insulation Online Monitoring System

Product Overview
The OM.R900 Transformer Bushing Insulation Online Monitoring System is a continuous, real-time or periodic, automated monitoring device designed to assess the insulation status parameters of capacitive equipment such as transformer bushings. Utilizing all-digital zero-flux intelligent monitoring sensors, the system continuously tracks the insulation condition parameters of transformer bushings. It leverages an industrial fieldbus for seamless, station-wide digital communication, enabling data exchange between local monitoring IEDs and the central monitoring system. Furthermore, an expert system is employed to evaluate and analyze the health status of transformer bushing equipment, facilitating real-time online analysis and diagnosis of insulation performance and operational conditions. Based on these insights, the system helps formulate targeted maintenance strategies specifically tailored to the insulation performance of transformer bushings, as well as comprehensive plans for transformer upkeep and condition-based maintenance.

System Architecture

Advantageous Features
● High-precision measurement and strong anti-interference capability:
By adopting high-frequency damping devices and an electromagnetic-coupling single-turn core-through mounting method, the system effectively prevents lightning surges from entering the low-voltage system—without altering the original wiring—and ensures safe integration.
Fully digital sampling with strong anti-interference capability, combined with local digital analysis and shielding techniques to eliminate transmission and electromagnetic interference effects entirely.
● Real-time Monitoring and Intelligent Diagnosis:
Real-time online monitoring of total current, dielectric loss, and capacitance—this emission-free, environmentally friendly, cost-effective, and safety-certified intelligent analysis system supports trend assessment and historical data statistics, while featuring real-time alarm functionality to promptly identify potential equipment issues.
● Safety, Reliability, and Environmental Adaptability:
The terminal signal acquisition unit is equipped with a protective device to prevent open circuits from compromising equipment safety.
Featuring a die-cast aluminum alloy material with a sealed design, it is waterproof and dustproof, boasts strong anti-interference capabilities, and is ideal for harsh outdoor environments.
● Multi-parameter comprehensive monitoring:
In addition to monitoring dielectric loss, capacitance, and leakage current, it can also be extended to include multi-parameter monitoring of partial discharge, oil temperature, oil pressure, and more, enabling a comprehensive assessment of equipment condition.

System Parameters

On-site Cases

Guangxi Institute's 220kV Photovoltaic Projects in Qintang and Chongzuo		State Grid Xin Yuan Jilin Fushun 500kV Hydropower Station