Analysis of Dissolved Gas Components in Insulation Oil by Transformer Oil Chromatography with a Specialized Gas Chromatography Instrument

NegotiableUpdate on 02/19

Model

Nature of the Manufacturer: Producers

Product Category

Place of Origin

Online Consult

Overview

The transformer oil chromatography analysis system adopts a one-time injection and one-time detection of 7 components, equipped with TCD detector and FID detector, where H2 and O2 are detected by TCD; Hydrocarbon gases (CO, CH4, CO, C2H4, C2H2, C2H6) are detected by FID. Based on the peak area and retention time of each component recorded, the data is analyzed using a dedicated chromatographic workstation, and the percentage content of each component is calculated by oscillation method.

Product Details

Detailed content

OneOverview: The determination of dissolved gas content in insulating oil by gas chromatography is an effective means for power generation and supply enterprises to determine whether there are latent overheating, discharge and other faults in oil filled power equipment during operation, in order to ensure the safe and effective operation of the power grid. It is also a necessary means for oil filled electrical equipment manufacturers to conduct factory inspections of their equipment.

The transformer oil chromatography analysis system adopts a one-time injection and one-time detection method7 components, equipped with TCD detector and one FID detector, with H2 and O2 detected by TCD; Hydrocarbon gases (CO, CH)4TheCO、C2H4TheC2H2TheC2H6）ByFID detection, based on the peak area and retention time of each component recorded, analyzes the data using a dedicated chromatographic workstation and calculates the percentage content of each component using oscillation method.

IITesting indicators:

CO、CH4TheCO、C2H4TheC2H2TheC2H6TheH2

III instrumentPreparation:

1. Gas chromatograph: equipped with thermal conductivity detector TCD and hydrogen flame detector FID

2. Chromatographic Column: Specialized Chromatographic Column

3. Standard: Standard gas

4. Dual channel chromatography workstation: Two detectors collect and stop simultaneously, and the spectra are automatically merged into one chromatogram.

5. Gas generator: provides hydrogen, air, and nitrogen gas cylinders

4Experimental conditions:

1. Column temperature: 65 ℃,

2. Carrier gas: nitrogen; The pressure in front of the column is 1.2Mpa;

3. Vaporization temperature: 150 ℃, TCD detector temperature: 80 ℃, converter temperature: 320 ℃

5、 Graph

VIReference basis:

GB/T 17623-1998 "Determination of dissolved gas components in insulating oil by gas chromatography"
GB/T 7252-2001 "Guidelines for Analysis and Determination of Dissolved Gases in Transformer Oil"
DL/T 722-2000 "Guidelines for Analysis and Determination of Dissolved Gases in Transformer Oil"

7、 Instrument configuration:

serial number	Product Name	Model	quantity
1	Gas chromatograph (FID, TCD dual column injection system, programmed temperature rise, back door)	GC9280	1 unit
2	Converter furnace	GC9280	1 unit
3	air generator	PRK-2L	1 unit
4	hydrogen generator	PRH-300	1 unit
5	high-purity nitrogen	Purity 99.999%	1 bottle
6	Specialized chromatography workstation	The calculation method fully complies with GB/T7252-2001 and DL/T722-2000, and automatically provides three ratio codes and fault properties in the report. It can make historical curves of the content of each component in the extracted gas over time for the same sampling point	1 set
7	Specialized chromatographic column		2 pieces
8	Fully automatic oscillator		1 unit
9	standard gas		1 bottle
10	Computers and printers		1 set

Update time: September 4, 2020 16:48:45