GDSCAN 6200

Hydrogen (H₂), Moisture, Pressure and Temperature Monitor

Hydrogen, moisture, pressure and oil temperature monitor for tracking transformer condition and supporting predictive maintenance.

Description

The GRIDSCAN 6200 is a state-of-the-art monitor for electrical transformers, developed by H2scan. Its main function is to provide advanced predictive diagnostics and continuous monitoring by integrating multiple sensors into a single device. It precisely measures hydrogen (H₂) levels, moisture, pressure and insulating oil temperature, enabling early detection of dielectric faults and prevention of catastrophic events.

The GRIDSCAN 6200 monitors four parameters crucial to the health of electrical transformers:

Hydrogen (H₂): Considered the first gas associated with dielectric faults, monitoring it is essential for detecting internal overheating.
Moisture: Moisture monitoring is critical for identifying insulating oil degradation and preventing internal short circuits.
Pressure: Pressure variations can indicate operating anomalies and help detect structural leaks.
Temperature: Temperature measurement helps predict thermal faults and overloads, supporting preventive maintenance. When continuously monitored, these parameters provide a comprehensive view of the transformer's operating condition, allowing intervention before minor problems become critical.

Technical data

KEY TECHNICAL ADVANTAGES

1. High-precision Hydrogen Sensor
• Measurement range: 25 to 5000 ppm
• Accuracy: ±20% of reading or ±25 ppm, whichever is greater
• Repeatability: ±10% of reading or ±25 ppm
• Response time: < 60 minutes after contact with H₂
• Low cross-sensitivity: Less than 2% sensitivity to CO, CO₂ and hydrocarbons
• Patented solid-state technology: No consumables or recalibration required

2. Continuous Moisture Monitoring
• Measurement range: 0 to 95% relative humidity
• Accuracy:
o ±2% RS in the range below 20%
o ±8% RS between 20–50%
• Repeatability: ±2% RS

3. High-reliability Pressure Measurement
• Measurement range: 0 to 205 kPa (0 to 30 psia) absolute
• Accuracy: ±2% FS
• Repeatability: ± 0.01% FS
• Ability to detect pressure variations associated with leaks and mechanical impacts

4. Temperature Sensor for Critical Conditions
• Measurement range: -40°C to 125°C
• Accuracy: ±0.1°C
• Repeatability: < 2°C