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Rika Sensor is a weather sensor manufacturer and environmental monitoring solution provider with 10+ years of industry experience.

Sulfur hexafluoride sensor is the 'gatekeeper' for gas insulation in the power distribution room

by:Rika Sensors     2021-11-02
Sulfur hexafluoride sensor is the 'gatekeeper' for gas insulation in the power distribution room
Nowadays, everyone's reliance on electricity consumption has become like breathing. Imagine if your phone’s battery level drops by 1%, or the battery level shows a yellow or even red sign, will you be anxious?

Nowadays, my country’s power system is gradually becoming stronger and stronger, especially when strong convection weather is frequent now, we can still sit indoors and blow air-conditioning, play games on the Internet, and watch TV. What technology or equipment guarantees the power supply? How about the stability and security of the system?

Here is the secret of a gas-sulfur hexafluoride (SF6). Regardless of whether it is a gas, its electrical insulation and arc extinguishing properties are its 'good tricks'.

Sulfur hexafluoride has become a new generation of ultra-high voltage edge dielectric material due to its colorless, non-toxic, odorless, non-flammable, stable properties, and good electrical insulation properties. High-voltage power systems, and power distribution networks. But it is undeniable that although sulfur hexafluoride itself is non-toxic and harmless to the human body, once it is combined with oxygen in the air, or under the action of a strong electric arc, it will produce some toxic fluoride gas, which is harmful to the workers on site. Threatens their lives. However, there is a certain pressure when sulfur hexafluoride gas rushes into the high-pressure sealed cabinet, and the probability of gas leakage is higher. Therefore, it is very important to install sulfur hexafluoride gas leakage monitoring equipment in workplaces such as power distribution rooms where sulfur hexafluoride is used.

Based on monitoring the concentration of sulfur hexafluoride gas in power systems such as power distribution rooms to prevent gas leakage, the RS-SF6*-N01-2/OLED series of sulfur hexafluoride sensors are developed. This equipment adopts high-precision sensor chip, uses DNIR principle to detect, imported high-quality infrared light source, and actively extracts the gas to be measured. The range is 0~1000ppm. It has the characteristics of rapid and sensitive response, strong anti-interference, high repeatability and high stability. It adopts RS485 signal output, standard MODBUS-RTU communication protocol, and the maximum communication distance is 2000 meters. A device with a high-quality OLED display is also optional. The value can be viewed directly on site and can be clearly displayed at night.

Characteristics of sulfur hexafluoride sensor:

1. Support multiple signal output

According to the requirements of the field environment, you can choose RS485 signal output or analog (4-20mA/ 0-5V/0-10V) signal output two data upload methods.

2. Support multiple types of options

The equipment can be equipped with OLED screen display, which is convenient for the staff to view the data in real time at the work site and understand the concentration of sulfur hexafluoride gas in time.

3. A variety of data viewing methods

can be viewed on-site according to the data displayed on the OLED screen;

can be connected to a network transmitter to upload data through GPRS/4G signals To the cloud platform, realize real-time monitoring of mobile phones and computers;

or upload the data to our free cloud platform through the device connected to the environmental monitoring host, and you can set the upper and lower limits of alarms, contacts and other parameters on the computer.

4. High protection grade shell

The equipment adopts IP65 protection grade, wall-mounted king-shaped shell shell, beautiful appearance; at the same time, it uses polymer waterproof material to form a waterproof and breathable membrane. It can filter out the humidity in the environment, ensure the normal circulation of gas, and ensure the accuracy of equipment monitoring.

5. Free gas calibration

Our company provides a calibration service for each device once a year to ensure the accuracy of gas detection.

Precautions during installation

1. Since the density of sulfur hexafluoride gas is greater than the density of air, try to install it as close to the ground as possible.

2. The device supports 10-30V wide-voltage power supply. RS485 signal output equipment should pay attention to the two wires A/B can not be reversed, and the addresses of multiple devices on the bus can not conflict.

Sulfur hexafluoride sensor can sense and monitor the gas concentration in real time, which can ensure that sulfur hexafluoride gas is in the closed fully insulated switchgear for a long time due to its good insulation properties in the power industry such as the power distribution room. C position' to ensure the stable transmission of electricity and protect the life safety of staff.

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