Wireless and Passive SF6 Density Sensor

Real-time remote transmission of monitoring data • High measurement accuracy

Communication method: RS-485 wired output

Pressure measurement range: (-0.1 to 0.9) MPa

Electronic density error: ≤ ±0.5%F.S

Temperature measurement range: (-40 to +70) °C

Temperature error: ±1 °C

Density accuracy: 1.0 class/1.6 class @ 20 °C, 1.6 class/2.5 class @ -40 °C to +60 °C (optional)

Product Introduction

The NA1100P wireless and passive SF6 density sensor is suitable for high-precision monitoring of the density, pressure, and temperature of SF6 gas in the gas chamber of SF6 high-voltage electrical equipment. The sensor uses a high-precision pressure acquisition unit and temperature measurement unit, and a temperature compensation curve is made in high and low temperature environments, enabling it to have excellent measurement accuracy. It has the characteristics of high stability, high reliability, excellent anti-interference ability, and high protection level. All kinds of monitoring data are transmitted in real-time, and the background system draws a trend change diagram. When an abnormality is detected, an alarm is issued in a timely manner to ensure the safe operation of SF6 electrical equipment and meet the construction requirements of smart substations of the State Grid and digital substations of the China Southern Power Grid.

Main Features

1. Two forms of active wired and passive wireless can be selected; dynamically and real-time monitor the SF6 density, pressure, and temperature indicators in the gas chamber.

2. The monitoring data of the NA1100P wireless and passive SF6 density sensor is uploaded to the monitoring center in real-time; the background system automatically draws a trend change diagram.

3. This wireless and passive SF6 density sensor has strong electromagnetic interference resistance; wide temperature range compensation.

4. The NA1100P wireless and passive SF6 density sensor meets the State Grid standard "Technical Specification for Smart Substations - Part 4: Digital Meters".

Product Parameters