Dissolved Gas Component Analyzer in Transformer Oil GC-7890 Gas Chromatograph

By using the Dissolved Gas Component Analyzer in Transformer Oil, we can promptly identify whether faults exist and take maintenance measures to ensure the safe operation of transformers. The Transformer Oil Gas Chromatograph is an indispensable device in power systems.

Working Principle and Technical Features

Working principle of the Gas Chromatograph for Insulating Gas Analysis in Transformer Oil: The transformer oil gas chromatograph separates components in the sample based on differences in boiling points, polarity, and adsorption coefficients in the chromatographic column, enabling qualitative and quantitative analysis of each separated component. After the sample is injected and vaporized, it is separated in the chromatographic column. The detector connected to the column then sequentially detects each component based on their physicochemical properties. Finally, the Dissolved Gas Component Analyzer in Transformer Oil transmits data to the chromatographic workstation via serial port or network, where the gas chromatograms of each component are recorded and analyzed to generate an analysis report.

Technical features of the Gas Chromatograph for Insulating Gas Analysis in Transformer Oil:

1. Rapid and accurate sample detection: The transformer oil gas chromatograph offers high analytical precision, capable of detecting trace contaminants and gases in oil. It also features fast analysis speed, typically completing an analysis in a few minutes to over ten minutes.

2. Non-invasive with minimal sample requirement: The Dissolved Gas Component Analyzer in Transformer Oil enables non-invasive testing without disassembling the transformer. It requires only a small amount of oil sample for each analysis, usually just a few milliliters, minimizing impact on transformer operation.

3. Intelligent and automated: Modern Transformer Oil Gas Chromatographs are mostly equipped with intelligent operation interfaces and automated data processing systems, making operation simpler and results more intuitive. The instrument has self-diagnostic functions, displays fault locations, and features data power-off protection to ensure that set operating data are preserved long after power loss.

Dissolved Gas Component Analyzer in Transformer Oil GC-7890 Gas ChromatographMain Technical Specifications:

● Modular design with a compact and rational structure, offering multiple expansion functions for accurate and fast analysis.

● Equipped with a 5.7-inch LCD screen for rich and intuitive display content, simplifying human-machine interaction. Supports Chinese and English language switching to meet diverse customer needs.

● Utilizes an advanced microcomputer control system, enabling full control and analysis on a PC. Optional built-in AD conversion circuit allows direct digital output of chromatographic signals.

● Features 6 control modules, each with temperature control ranging from room temperature to 400°C, adjustable in 1°C increments with an accuracy of ±0.1°C.

● Includes over-temperature protection; if any temperature control circuit exceeds the set protection value, it automatically cuts off power to prevent hazards due to temperature loss of control.

● Intelligent flexible rear door design for more precise temperature control.

● Supports 9-stage programmed temperature rise to meet complex sample analysis needs.

● Temperature rise rate: 0.1～40°C/min

● Multiple injection methods available: on-column injection, split/splitless injection, packed column injection, gas valve injection, headspace injection, thermal desorption injection, purge and trap injection, flash evaporation injection, etc.

● 20L large column oven, laying the foundation for multidimensional chromatographic analysis.

● External control event module, compatible with multi-valve and multi-column switching systems, enabling complete analysis of complex gas components with a single injection. Achieves automated instrument operation.

● Supports installation of up to 3 detectors (FID, TCD, ECD, FPD, NPD optional), and can be equipped with a methane converter.

●Injection initiation: manual or automatic optional; when automatic injection is selected, programmed temperature rise can be simultaneously activated.

● Column oven dimensions: 28mm×28mm×27mm (L*D*H)

● Instrument dimensions: 635mm×580mm×50mm (L*D*H)Main Technical Specifications:

● Modular design with a compact and rational structure, offering multiple expansion functions for accurate and fast analysis.

● Equipped with a 5.7-inch LCD screen for rich and intuitive display content, simplifying human-machine interaction. Supports Chinese and English language switching to meet diverse customer needs.

● Utilizes an advanced microcomputer control system, enabling full control and analysis on a PC. Optional built-in AD conversion circuit allows direct digital output of chromatographic signals.

● Features 6 control modules, each with temperature control ranging from room temperature to 400°C, adjustable in 1°C increments with an accuracy of ±0.1°C.

● Includes over-temperature protection; if any temperature control circuit exceeds the set protection value, it automatically cuts off power to prevent hazards due to temperature loss of control.

● Intelligent flexible rear door design for more precise temperature control.

● Supports 9-stage programmed temperature rise to meet complex sample analysis needs.

● Temperature rise rate: 0.1～40°C/min

● Multiple injection methods available: on-column injection, split/splitless injection, packed column injection, gas valve injection, headspace injection, thermal desorption injection, purge and trap injection, flash evaporation injection, etc.

● 20L large column oven, laying the foundation for multidimensional chromatographic analysis.

● External control event module, compatible with multi-valve and multi-column switching systems, enabling complete analysis of complex gas components with a single injection. Achieves automated instrument operation.

● Supports installation of up to 3 detectors (FID, TCD, ECD, FPD, NPD optional), and can be equipped with a methane converter.

●Injection initiation: manual or automatic optional; when automatic injection is selected, programmed temperature rise can be simultaneously activated.

● Column oven dimensions: 28mm×28mm×27mm (L*D*H)

● Instrument dimensions: 635mm×580mm×50mm (L*D*H)