To ensure the reliable operation of transformers and proactively identify potential faults, CHH Power integrates four cutting-edge detection technologies into its maintenance and monitoring systems. These technologies enable real-time status tracking, early hazard identification, and data-driven fault diagnosis—critical for minimizing downtime and ensuring grid stability. Below is a detailed overview of how CHH Power applies each technology.
1. Online Monitoring Technology: Real-Time Operational Insight
CHH Power’s online monitoring system relies on two core methods to track transformer health during operation, enabling proactive fault prevention:
(1) Vibration Analysis Method
This method monitors the intensity and frequency of vibration signals generated by transformers in operation. CHH Power has upgraded this technology by:
- Installing high-sensitivity vibration sensors on transformer cores and tanks to capture subtle signal changes.
- Using AI algorithms to analyze vibration patterns—deviations from baseline data (e.g., abnormal frequency spikes) indicate potential issues like core loosening or winding deformation.
- Enabling early fault resolution: Minor anomalies (e.g., slight core vibration) are addressed before they escalate into major failures (e.g., winding short circuits), reducing unplanned outages by 25% in CHH Power’s client projects.
(2) Partial Discharge Detection Method
Partial discharge occurs when internal mechanical faults (e.g., insulation breakdown, loose components) trigger localized electrical discharges, altering discharge intensity and speed. CHH Power’s application of this method includes:
- Deploying ultra-high-frequency (UHF) sensors inside transformers to detect faint discharge signals.
- Integrating data analysis platforms that correlate discharge parameters with specific fault types (e.g., high hydrogen levels paired with discharge spikes indicate insulation aging).
- Conducting daily remote monitoring of discharge data, ensuring timely intervention before faults affect transformer performance.
2. Gas Chromatograph Technology: Oil-Gas Component Analysis
CHH Power uses gas chromatograph technology to analyze the composition of mixed gases dissolved in transformer oil—a key indicator of internal faults. This technology offers high efficiency, ease of operation, and wide applicability, making it a staple in CHH Power’s fault diagnosis toolkit.
- Core Application: Polymer Membrane Technology: CHH Power employs polymer membrane technology to rapidly separate oil and gas. Under transformer operating conditions, the polymer membrane accelerates oil dissolution, increasing the concentration of fault-related gases (e.g., hydrogen, methane) for accurate detection.
- Fault Identification via Gas Signatures: When transformers develop faults (e.g., overheating, arcing), they emit characteristic gases. For example, hydrogen (H₂) is a telltale sign of insulation degradation. CHH Power’s gas chromatographs quantify these gases, enabling technicians to pinpoint fault types and severity.
- Efficiency Boost: This technology speeds up fault gas diffusion analysis, allowing CHH Power to restore transformers to normal operation 30% faster than traditional methods.
3. Sensor Array Technology: High-Speed Fault Gas Detection
Sensor array technology is integral to CHH Power’s rapid fault response, thanks to its high selectivity and sensitivity. The company leverages this technology to enhance transformer safety and detection accuracy:
- Key Advantages in CHH Power’s Systems:
- High Selectivity: Arrays of specialized sensors target specific fault gases (e.g., H₂, CO₂), avoiding false alarms from irrelevant gases.
- High Sensitivity: Detects trace gas concentrations (as low as 1 ppm), enabling early fault detection before visible symptoms appear.
- Application in Online Monitoring: CHH Power integrates sensor arrays into its real-time monitoring systems to measure fault gas concentrations continuously. This increases detection speed by 40% compared to single-sensor setups, ensuring timely adjustments to prevent fault escalation.
- Operational Stability: The technology minimizes external interference (e.g., temperature, humidity fluctuations), maintaining consistent detection accuracy even in harsh environments (e.g., outdoor substations in coastal areas).
4. Infrared Spectroscopy Technology: Rapid Quantitative Analysis
Also known as online infrared spectroscopy detection, this technology is valued by CHH Power for its fast detection speed, high accuracy, high sensitivity, and low maintenance requirements. It plays a key role in quantifying fault-generated gases:
- Dual-Instrument Integration: CHH Power combines infrared gas analyzers with thin-film capacitance detectors for comprehensive quantitative analysis. The infrared analyzer identifies gas types based on molecular absorption spectra, while the capacitance detector measures concentration with high precision.
- Practical Application: In field tests, this technology accurately measures the content of gases like ethylene (C₂H₄) and acetylene (C₂H₂)—critical for diagnosing arcing or overheating faults.
- Low Maintenance Advantage: The technology’s robust design reduces calibration frequency, lowering CHH Power’s operational costs while ensuring long-term reliability.
By integrating these four advanced detection technologies, CHH Power establishes a multi-layered fault monitoring system that enhances transformer safety, extends equipment lifespan, and ensures uninterrupted power supply for clients.