Transformer Oil Gas Analyzer DGA

Product Introduction

Our company, committed to technological innovation, dedicated to industry analysis, and focused on chromatography R&D, proudly introduces the new MOEORW-W6970A Gas Chromatograph. This instrument features reliable performance, compact design, strong expandability, simple operation, and easy maintenance. Tailored for applications such as online analysis in university laboratories, petrochemical processing, and environmental monitoring, it offers flexible customization solutions. It delivers exceptional analytical capabilities and operational performance, making it a truly high-performance gas chromatograph.

Product Parameter (specification)

● Operation Display	7-inch high-definition capacitive touchscreen;
● Temperature Control Zones	8 channels;
● Temperature Range	Ambient +5°C to 450°C, Increments;0.1°C, Accuracy;±0.1°C;
● Programmed Temperature Steps	16 steps (expandable to 99 steps);
● Maximum Heating Rate	80°C/min;
● Gas Path Control	Precision mechanical valve flow control;
● External Events	8 channels; Auxiliary control outputs;2 channels;
● Injector Types	Packed column injection, capillary injection, six-port valve gas injection, autosampler;
● Detector Quantity	4 (maximum); Selectable from FID, TCD, ECD, FPD, PDHID, PED, and NPD;
● Injection initiation	Manual or automatic selectable;
● Communication interface	Ethernet;IEEE802.3;
1.3.2 Detector Technical Specifications 1. Hydrogen Flame Ionization Detector (FID)
● Detection limit	≤3.0×10⁻¹² g/s (hexadecane/isooctane)
● Baseline noise	≤2×10⁻¹⁴ A
● Baseline drift	≤1×10⁻¹³ A/30 min
● Linear range	≥10⁷
2. Thermal Conductivity Detector (TCD)
● Sensitivity	S ≥ 10,000 mV•ml/mg (benzene/toluene) (with selectable amplification;1×, 2×, 3×, 4×)
● Baseline noise	≤20 μV
● Baseline drift	≤30 μV/30 min
● Linear range	≥10⁵
3. Electron Capture Detector (ECD)
● Detection limit	≤1×10⁻¹⁴ g/mL (α-hexachlorocyclohexane-isooctane solution)
● Baseline noise	≤0.03 mV
● Baseline drift	≤0.2 mV/30 min
● Linear range	10⁵
● Radioactive source	⁶³Ni
4. Flame Photometric Detector (FPD)
● Detection limit	(S) ≤2×10⁻¹¹ g/s,(P) ≤1×10⁻¹² g/s; (Methyl parathion-anhydrous ethanol solution)
● Baseline noise	≤3×10⁻¹³ A
● Baseline drift	≤2×10⁻¹² A/30 min
● Linear range	Sulfur ≥10³; Phosphorus ≥10⁴
5. Nitrogen-Phosphorus Detector (NPD)
● Detection limit	(N) ≤1×10⁻¹² g/s (azobenzene)(P) ≤ 1×10⁻¹² g/s; (Malathion)
● Baseline noise	≤5×10⁻¹³ A
● Baseline drift	≤2×10⁻¹² A/30 min
● Linear range	For nitrogen ≥10², For phosphorus ≥10³

Product feature and application

★ Features technologically advanced 100Mbps/1Gbps Ethernet communication interfaces with built-in IP protocol stacks, enabling long-distance data transmission via corporate LANs and the internet. This facilitates laboratory setup, simplifies configuration, and streamlines analytical data management.

★ The dedicated workstation supports simultaneous connection of multiple chromatographs for data processing and instrument reverse control, simplifying documentation management.

★ The instrument can connect to the manufacturer via the internet for remote diagnostics and updates (requires user configuration).

★ Features a 7-inch high-definition capacitive touchscreen display.

★ Employs a multi-processor parallel operation mode for enhanced stability and reliability. Offers optional high-performance detectors such as FID, TCD, ECD, FPD, and NPD, with support for up to four detectors installed simultaneously to meet complex sample analysis demands.

★ Modular structural design simplifies future maintenance.

★ New microprocessor-based temperature control system delivers high precision, superior reliability, and excellent interference resistance. Features eight fully independent temperature control outputs supporting 16-step programmed temperature ramping (expandable to 99 steps). Equipped with an automatic column oven rear door system, enhancing near-ambient temperature control capability and accelerating heating/cooling rates.

★ The chromatograph incorporates a low-noise, high-resolution 24-bit AD circuit with baseline storage and subtraction capabilities.

★ The standard workstation is compatible with WinXP, Win2000, Win7, Win8, and Win10 operating systems.

★ The chromatograph's microcomputer system, featuring fully independent intellectual property rights, supports the MODBUS/TCP standard protocol for integration with DCS systems.

Prodection details

The Transformer Oil Chromatography Online Monitoring System is suitable for various oil-filled electrical equipment such as power transformers, reactors, and instrument transformers. It is widely applied in power plants, substations, transmission lines, metallurgical and chemical industries, and rail transit sectors. This system enables real-time monitoring of dissolved gas content in equipment insulation oil, provides early warnings for internal faults, and ensures the safe and stable operation of equipment.

Company Qualifications

FAQ

1)What are the components of an online transformer oil chromatographic monitoring system?

1. Gas Chromatograph
The gas chromatograph has achieved a qualitative leap in automation and overall performance. Its robust network remote control capabilities enable unattended operation, distributed monitoring, and centralized control.
2. Column Oven
The GC column oven boasts a large volume with dimensions of 300×260×270 mm, facilitating easy installation of packed columns or capillary columns.
3. Packed Column/Capillary Vaporizer
The packed column vaporizer is mounted on the upper left front section of the column oven.
4. Thermal Conductivity Detector (TCD)
5. Flame Ionization Detector (FID)
6. Flame Photometric Detector (FPD)
7. Nitrogen Phosphorus Detector (NPD)
8. Display and Keyboard
9. External Event Control and Communication Output
10. Power Switch

2)How does a gas chromatograph work?

Gas chromatography employs gas as the mobile phase (carrier gas). When a sample is introduced into the injector and vaporized, it is carried by the carrier gas into a packed column or capillary column. Due to differences in boiling points, polarity, and adsorption coefficients among the sample components, these components are separated within the column. Subsequently, a detector connected to the column detects each component sequentially based on its physicochemical properties. Finally, the data is transmitted via network to the chromatography workstation, which records and analyzes the gas chromatograms of each component to generate a comprehensive analytical report

3)What substances can the transformer oil chromatograph analyze?

7 components including hydrogen, methane, ethylene, ethane, acetylene, carbon monoxide, and carbon dioxide

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