Darui Electric recommends:
HDQS96 Transformer Oil Chromatography Online Monitoring SystemAll personnel involved in the installation, operation, and maintenance of this system:
1. Must possess corresponding professional technical qualifications;
2. Strictly comply with the relevant instructions in this user manual;
3. Do not play games, browse the web, etc. on the system's backend data server;
4. Do not install any other software on the system's backend data server to avoid unnecessary conflicts.
Violating the above operations may lead to:
1. Reduced system monitoring accuracy, endangering system service life;
2. Possible damage to this system's equipment or other user equipment;
3. Causing unnecessary harm.
1.2 Relevant Standards
This system references the following standards, which specify the technical requirements, acceptance rules, inspection methods, scope of application, packaging requirements, marking, transportation, and storage of this system.
1. GB7597－1987 Method for Sampling Power Oil
2. GB/T7601－1987 Method for Determination of Water Content in Transformer Oil in Service
3. GB/T14542－93 Maintenance Management Regulations for Transformer Oil in Service
4. DL/T 596－1996 Preventive Test Procedure for Electric Power Equipment
5. DL/T 572－1995 Operation Regulations for Power Transformers
6. GB/T 7252－2000 Guide for the Analysis and Judgment of Dissolved Gases in Transformer Oil
7. GB/T17623－1998 Gas Chromatographic Determination of Dissolved Gas Components in Insulating Oil
8. GB/T 2423－2001 Environmental Testing for Electric and Electronic Products
9. GB/T 17626－1998 Electromagnetic Compatibility - Testing and Measurement Techniques
10. GB/T 13384－1992 General Technical Requirements for Packaging of Mechanical and Electrical Products
11. GB190—1990 Packaging Marks for Dangerous Goods
12. GB5099－1994 Seamless Steel Gas Cylinders
13. GB 4208－1993 Degrees of Protection Provided by Enclosures (IP Code)
1.3 Scope of Application
The transformer oil chromatography online monitoring system is suitable for monitoring the operating status of power transformers with voltage levels of 110kV and above, and high-voltage shunt reactors with voltage levels of 330kV and above. As a sensing layer device for condition monitoring, it mainly completes the local measurement of condition monitoring parameters of oil-filled primary equipment in smart substations and data communication functions, meeting the communication requirements of intelligent substations based on IEC61850, and achieving fully digital data acquisition and transmission.
The user is responsible for ensuring that the system is used only for the intended purpose. For safety reasons, during the installation, modification, commissioning, and updating of the system, no unauthorized operations shall be carried out without prior consent from our company. Otherwise, it may endanger the safe operation of this system and the transformer.
1.4 Product Features
1. Vacuum and ultrasonic electromagnetic oscillation degassing technology
The degassing technology combining vacuum and ultrasonic electromagnetic oscillation can, under low vacuum conditions, use the electromagnetic excitation of ultrasound and the vacuum volatilization of solutes to jointly form a cyclic self-excitation of dissolved gases, achieving rapid and effective separation of dissolved gases in transformer oil without any medium intervention. It has high degassing efficiency, short time, good repeatability, and avoids pollution of transformer insulating oil.
2. Cold trap technology
In oil chromatography detection, there is pollution of the chromatographic column active substances by oil gas, which will seriously affect the separation effect of the chromatographic column and reduce its service life. Usually, active agents (such as activated carbon) are used to adsorb and filter the separated fault gas, which can effectively reduce the pollution of the chromatographic column by oil gas. However, the activation and regeneration characteristics of active agents cannot meet the long-term stable operation requirements of online monitoring systems.
The cold trap effectively condenses the volatile components of organic matter above C3 in transformer oil under a certain low-temperature environment, completely avoiding pollution of the chromatographic column by oil gas, and achieving the system's maintenance-free requirement.
3. Composite chromatographic column
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