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Online Dissolved Gas Analysis

Online Dissolved Gas Analysis(DGA) Monitoring System for Transformer Oil

  • Product Origin:

    China
  • Brand:

    ACORE
  • Item No.:

    TDGA
  • Shipping Port:

    hanghai, Guangzhou, Shenzhen, Chongqing
  • Color:

    Option
  • Lead Time:

    30 days
  • Payment:

    TT, Western Union
  • Price Range:

    $50000-80000/set
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description

Application:

TDGA online dissolved gas analysis(DGA) monitor for transformer can realize automatic quantitative cycle cleaning, oil intake, oil and gas separation, cycle sampling analysis, data processing, real-time alarm for fast online gas content analysis and monitoring of transformers and other oil-immersed high-voltage equipment. The content of dissolved fault gas in oil and Its growth rate, and through the fault diagnosis expert system to early forecast equipment failure information, to avoid equipment accidents, reduce significant losses, improve the reliability of equipment operation. As a new generation product in the field of oil chromatography online monitoring, this system will provide a stable and reliable solution for online remote DGA analysis of power transformers, and is a powerful guarantee for the implementation of power system condition maintenance system.


The on-site monitoring host consists of four high-integrated modules and auxiliary units, such as chromatographic data acquisition and processing module, oil and gas separation module, gas detection module and gas source module. The chromatographic data acquisition and processing module comprises a data acquisition unit, a field control processing unit, a communication control unit and a 61850 telecommunication protocol: the oil and gas separation module comprises an oil sample circulation collection unit, an oil sample quantitative unit, an oil sample processing return unit, and a degassing gas collection unit. The unit includes a gas separation unit, a constant temperature constant current control unit, a gas detection unit, and the like: the gas source module includes a gas generating unit, a gas storage unit, a purification unit, a pressure control and an alarm unit, and the like: the auxiliary unit includes a transformer Interface, tubing communication and power cable.


Features:

1. Detection principle: H2, CO, CH4, C2H4, C2H2, C2H6, CO2, total hydrocarbons, CO2 (optional), O2 (optional), N2 (optional) are detected by a special nanocrystalline semiconductor detector. (optional) The micro water monitoring unit detects H2O.

2. Separation method: Vacuum degassing technology realizes oil and gas separation, completely isolates oil and gas pollution, avoids poisoning of column and sensor, ensures detection performance, ensures and improves system detection life, and realizes maintenance of field equipment for life. Dedicated high performance composite chromatography column to separate mixed gas.

3. Recycling method: transformer oil closed circuit and vacuum degassing technology not only accelerates the separation speed of oil and gas, but also ensures the activity of the tested oil sample, does not consume or pollute the transformer oil.

4. Sampling method: multi-cycle sampling, accurately measuring gas content in transformer oil.

5. Temperature control: double-loop constant temperature control, temperature control accuracy of ± 0.1 ° C.

6. Data collection: Data processing software realizes daily automatic detection, automatic data uploading and automatic fault diagnosis; realizes automatic peak capture and peak segmentation gain of fault gas characteristic curve, and the system monitoring precision is high

7. Network protocol: The system data communication supports TCP/IP network protocol, which can realize remote detection and diagnosis and data remote accessing.

8. Telecommunication method: The system telecommunication mode supports RS485, TCP/IP, and meets the IEC 61850 communication standard;

9. Display method: report / trend chart / incremental analysis, data can be incorporated into the user monitoring network;

10. Display content: H2, CO, CH4, C2H4, C2H2, C2H6, total hydrocarbons, CO2 (optional), O2 (optional), N2 (optional), H2O (optional) relative or absolute increasing rate;

11. Alarm method: Arbitrarily set the concentration and increment alarm value; sound/light alarm; the alarm signal is transmitted remotely.


Technical Specification:

Power supply

AC 220 V±10%, 50Hz

Working Environment

Temperature

-40 ° C ~ +70 ° C

Relative humidity

5~95%

Atmospheric pressure

70kPa ~ 110kPa

Measuring period

40-60 minutes (or settable)

Data storage

10 years

Gas analysis

H2

CO, CO2

CH4, C2H4, C2H6

C2H2

Option: O2,N2,H2O

Measuring range

1~10000 µ l/l

5~50000 µ l/l

0.1~20000µ l/l

0.1~5000 µ l/l



Low detection

1µ l/l

5µ l/l

0.1-0.5 µ l/l

Accuracy

±5%

Total gas content

Accuracy: 0.2~10%

Oil temperature monitoring

40~80°C

Electrostatic discharge immunity level

4 grades

± 8kV-± 15kV

Electrical fast transient burst immunity

4 grades

± 4kV

Surge (impact) immunity level

4 grades

± 4kV

Dimensions(L*W*H)

600*420*1050mm

Weight

125kg

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Subject : Online Dissolved Gas Analysis(DGA) Monitoring System for Transformer Oil

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