SF6 Gas Density Monitor
SF6 gas density transmitter
SF6 gas valve
SF6 Gas Detection Analyzer Series
Leakage Current Monitoring Series
Transformer Accessories Series
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Products
01
RDH40 SF6 Gas Density and Dew Transmitter
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SF6 Gas Insulated Swithchgear (GIS)
SF6 Insulated Circuit Breaker
SF6 Insulated Pole-Mounted Switch
SF6 Insulated Transformer
SF6 Insulation Current Transformer or Voltage Transformer
SF6 Insulated Bus System
Suitable for medium or high volatage systems.
Multi-parameter instrument for simultaneous mon- itoring of gas dew point, density, pressure and tem- perature with excellent accuracy.
RS485 bus interface (Modbus RTU).
Small size, beautiful structure.
Remote part of the main electrical performance indicators and specifications
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Operating voltage |
10~30VDC |
EMC Class |
IEC61000-4-2: Level 4 IEC61000-4-3: Level 3 IEC61000-4-4: Level 4 IEC61000-4-5: Level 4 IEC61000-4-6: Level 3 IEC61000-4-8: Level 5 IEC61000-4-9: Level 5 IEC61000-4-10: Level 5 |
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Power consumption |
<0.5W |
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Communication mode |
RS485 |
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Communication protocol |
Modbus RTU |
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Baud rate |
9600bps |
Technical parameters
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Pressure measuring range |
0 ~ 1.4MPa(customizable) |
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Dew measuring range |
-50℃ ~ +20℃ |
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Accuracy of transmitter |
Temperature：±1℃ Pressure：±0.5%FS Pressure at 20℃: ±1.0%FS Dew：±3℃ |
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Degree of protection |
IP65 |
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Ambient condition |
-40℃ ~ +80℃ , Relative humidity ≤ 95%RH |
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Leakage rate |
≤ 1 x 10-9 Pa · m3/s (Helium leakage inspection) |
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Process connection |
G1 (customizable) |
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Electrical connection |
M12 x 1 Circular connector |
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Weight |
0.4kg |
Measuring Medium：SF6 , Air, N2, SF6+N2 and other gases
Application of SF6 Gas Density Transmitter
The SF6 Gas Density Transmitter is a key intelligent monitoring device specially developed for SF6-insulated electrical equipment, which is widely applied in power systems and industrial fields. It adopts high-precision sensing elements and advanced digital processing technology to realize real-time and accurate monitoring of SF6 gas density, pressure and temperature, overcoming the defects of traditional mechanical gauges such as low precision and difficulty in remote monitoring. As an important component of the digital and intelligent transformation of power equipment, it is crucial to ensuring the safe and stable operation of SF6-insulated equipment and improving the efficiency of operation and maintenance.
The application scenarios of the SF6 Gas Density Transmitter are extensive and targeted. It is mainly used in SF6 circuit breakers, gas-insulated switchgears (GIS), transformers and surge arresters of various voltage levels (110kV to 1100kV) in power substations, which are the core application fields. It is also suitable for new energy power generation systems, industrial power distribution rooms, and high-voltage electrical equipment in petrochemical and railway fields that require high insulation performance. In addition, it can adapt to harsh working environments such as high and low temperatures (-40℃ to 85℃), humidity and strong electromagnetic interference, and is applicable to both new equipment installation and old equipment retrofitting.
This product has distinct technical characteristics and key advantages. Firstly, it features high measurement precision, with a density measurement error of ≤±0.2% FS, and can automatically compensate for temperature changes to ensure the accuracy of monitoring data under different working conditions. Secondly, it supports multiple data transmission modes, such as RS485 and 4-20mA analog output, which can be seamlessly connected to the power grid monitoring system to realize remote data reading and historical data storage. Thirdly, it has a reliable alarm function; when SF6 gas density is lower than the preset threshold, it will send timely acousto-optic and electrical alarms to prevent equipment insulation failure and accidents caused by gas leakage. Finally, it has the characteristics of long service life and easy installation, with a protection grade of IP65, which can adapt to various harsh on-site environments and reduce operation and maintenance costs.
In conclusion, the SF6 Gas Density Transmitter has broad application prospects with its high precision, reliability and strong environmental adaptability. It not only ensures the safe operation of SF6-insulated electrical equipment but also promotes the digital development of power systems, making it an indispensable core monitoring device in modern power safety protection.