language
Contact Us

What Kind of Calibration Can the SF6 Density Relay Calibrator Do?

Table of Content [Hide]

    The fully automatic SF6 density relay is an intelligent and fully automated verification instrument. The fully automatic SF6 density relay verifier uses single-cycle instruction microcomputer technology, which runs at a speed ten times faster than a regular single-chip microcontroller. It can perform on-site verification of SF6 density relays with pointer contact output and intelligent current output. The instrument uses an interrupt method to capture the action of the density relay in real-time, ensuring more accurate and timely measurements.


    In the work of power workers, it is often necessary to test SF6 density relays used for conducting the SF6 monitor. Therefore, an SF6 gas density relay tester is needed. What kind of tests can this equipment perform? This article will provide a brief introduction for you.


    1. Verification of SF6 density relay lockout recovery value


    Under ambient temperature, when the SF6 density relay is at zero pressure, slowly inflate it at a certain speed. When the lockout relay of the SF6 density relay is actuated, record the pressure value under the current ambient temperature and convert it into the equivalent pressure value at 20℃. This equivalent pressure value at 20℃ is the lockout recovery value of the SF6 density relay.


    2. Verification of SF6 density relay alarm recovery value



    Continue to slowly inflate the SF6 density relay, a kind of gas density sensor, at a certain speed.

    When the alarm relay of the density relay is actuated, record the pressure value under the current ambient temperature and convert it into the equivalent pressure value at 20℃. This equivalent pressure value at 20℃ is the alarm recovery value of the SF6 density relay.


    3. Verification of SF6 density relay alarm value


    Under ambient temperature, when the pressure inside the SF6 density relay is greater than the alarm recovery value, slowly release the air at a certain speed. When the alarm relay of the SF6 density relay is actuated, record the pressure value under the current ambient temperature and convert it into the equivalent pressure value at 20℃. This equivalent pressure value at 20℃ is the alarm value of the SF6 density relay.


    4. Verification of SF6 density relay lockout value


    Continue to slowly release the air from the SF6 density relay at a certain speed. When the lockout relay of the density relay is actuated, record the pressure value under the current ambient temperature and convert it into the equivalent pressure value at 20℃. This equivalent pressure value at 20℃ is the lockout value of the SF6 density relay.


    The relay verification instrument uses a modular mixed-type single-cycle high-speed single-chip microcomputer as the core, with rich resources, powerful functions, and strong data processing capabilities. Since it integrates the reference voltage and analog amplification into the internal of the single-chip microcomputer, the peripheral circuit is simple, stable, and highly accurate. The SF6 density relay verifier can perform fully automatic verification of both pointer-type and electronic density relays. It is a relatively conventional high-voltage power test equipment, and power workers need to be proficient in its usage methods and which tests can be performed.

    References

    Related Article for Reference

    Why Is the Response Time of SF6 Monitoring System Important?
    In the power system, SF6 leak detection is a crucial task. However, over the past two years, we have often heard a question: why do those expensive SF6 leak detectors with sensitivities1ppm not perfor...
    Sun 12 2023
    SF6 Density Relay Signal Detection Interface Application
    Ⅰ. Requirements for the development of SF6 density relayThe research focuses on the development of the signal detection interface device for SF6 density relays. The following technical indicators nee...
    Tue 02 2023
    What Are the Requirements of SF6 Density Relay in Low Temperature Environment?
    The performance of SF6 density relay in low temperature environment has attracted much attention, especially under extreme temperature conditions, the change in SF6 gas density may lead to an increase...
    Sat 01 2024
    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