Technical Parameters
Oil sampling method: Forced circulation by oil pump, timely detection, no dead zone oil sample
Degassing method: Vacuum degassing
Detection principle: Imported gas sensor
Measurement types: H2, CO, CH4, C2H2, C2H4 , C2H6 six types + CO2, moisture, oil temperature (optional), etc.
Separation method: Imported chromatographic column
Injection method: Electromagnetic six-way valve injection
Temperature control: Fuzzy PID control
Calibration method: External standard method, manual periodic calibration
Alarm method: On-site device light alarm; background software two-level sound/light alarm, mobile phone signal alarm, etc.
Fault diagnosis: IEC60599, national standard three-ratio method, two-ratio method, David triangle method, cubic diagram method, etc.
Data communication: RS485/Ethernet wired/wireless (GPRS/CDMA/3G) optional
Communication distance: RS485, 2000 meters (communication between on-site device and background monitoring system)
Communication protocol: Compatible with substation integrated automation system and dispatch automation system, easy to realize remote information transmission, supports TCP/IP network protocol, supports remote monitoring and remote maintenance
Power supply: 220V 50Hz AC power (above 5A)
Cylinder carrier gas: High purity air 99.999%, can be configured locally
Carrier gas replacement: About three years (based on one monitoring per day)
Degassing module lifespan: More than eight years
Oil-gas equilibrium time: 10 minutes
Analysis cycle: Minimum 1 hour, can be set arbitrarily
Calibration cycle: Greater than 2 years
Chromatographic column lifespan: Using periodic self-activation technology, service life greater than 8 years
Detector lifespan: More than eight years
Data storage cycle: 20 years
Working environment temperature: Transformer oil temperature range: 15℃～80℃
Working environment temperature range: －40℃～＋70℃
Working relative humidity: 5％～95％，no condensation
Panel indication: There are three-color indicator lights on the box panel: green - power, yellow - operation, red - device fault
Cabinet dimensions: 750 (length) ×600 (width) ×1250 (height) mm
Protection level: IP65 and above
Working Principle
The gas collection module of the HSM3000 transformer oil chromatography online monitoring system factory direct realizes the separation function of transformer oil and gas.In the gas separation module, the gas flows through the chromatographic column to achieve separation of multiple gases. The separated gases are converted from chemical signals to electrical signals in the chromatographic detection system. The electrical signals are collected by the data acquisition module and uploaded to the data and spectrum analysis software system through the communication port and communication network. This system can analyze and calculate the spectrum, and automatically calculate the concentration of each gas based on the gas calibration data. The fault diagnosis system automatically diagnoses the transformer operating status based on the gas concentration values using the transformer fault diagnosis algorithm in the software system. If an abnormality is found, the system can diagnose the type of internal fault in the transformer and provide maintenance suggestions.
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
