language
Contact Us

Research on Calibration Method of SF6 Relay Based on Internet

1. Calibration principle of SF6 relay


In a closed container, the SF6 gas pressure at a certain temperature can represent the density of SF6 gas. And the SF6 gas pressure at 20°C is often used as the density value.


During on-site calibration, the measured pressure value must be converted into its corresponding pressure value at 20°C under different ambient temperatures, so as to judge the performance of the SF6 relay. The SF6 relay calibrator is used to inflate and deflate the density relay to achieve the calibration of the overpressure value, the alarm value and the blocking value.


2. Control of the pressure value accuracy of the SF6 relay


The pressure value calibration accuracy of the density relay depends on the accuracy of the SF6 relay calibrator, which is controlled by measurement and control systems such as high-precision pressure sensors and pressure control components. It is characterized by high degree of automation, good repeatability, and high reliability. The SF6 relay contact test is measured by an SF6 relay calibrator. The measuring voltage of the contact is provided by the internal DC24V power supply of the calibrator, which can guarantee the signal be reliably collected when there is oil film in the contact points.

Related Article for Reference

Problems Related to the Field Test of SF6 Gas Density Monitor
In the SF6 gas density monitor circuit breaker, the decisive factor for its electrical strength and arc extinguishing performance is the gas density, and the main component reflecting the change of th...
Tue 05 2021
On-line Calibration of SF6 Gas Density Relay in Substation
sf6 relay detection time, detection cycle and detection requirements According to the provisions of national standards and industry standards, the detection cycle and requirements for sf6 electrical e...
Fri 11 2021
Air Replenishing Method of SF6 Sulfur Hexafluoride Electrical Equipment
SF6 is an insulating and arc extinguishing medium gas with good properties, which is widely used in switch gear of transmission and distribution system. In order to ensure the long-term safe and relia...
Wed 01 2023
Lanso Instruments INC.
233 W 1st St #210, North Vancouver, Canada
info@lansoinstruments.com
233 W 1st St #210, North Vancouver, Canada
info@lansoinstruments.com