Product Introduction
SF6 switches are widely used high-voltage electrical equipment in power systems, and the reliable operation of SF6 switches has become one of the concerns for power supply and distribution departments. The SF6 gas density relay is a crucial component for monitoring the density changes of SF6 gas within the SF6 switch during operation, and its performance directly affects the operational safety of the SF6 switch. Field-operated SF6 gas density relays often exhibit issues such as lack of responsiveness and poor contact between terminals after a period of use, and some may experience deterioration in the temperature compensation performance of the density relay, leading to incorrect operation of the SF6 density relay during sudden changes in ambient temperature. Therefore, according to DL/T596-2021 "Preventive Test Code for Electric Power Equipment," it is stipulated that each SF6 switch user should regularly calibrate the SF6 gas density relay. From the perspective of actual operation, it is also very necessary to conduct regular calibrations of SF6 density relays and pressure gauges in the field.
The SF6 Gas Density Relay Tester is an intelligent instrument for testing SF6 gas density relays. Equipped with high-precision pressure sensors and high-speed A/D converters, combined with a 32-bit high-performance microprocessor, it can accurately measure pressure values at the current temperature during signal operation, automatically convert standard pressure at 20°C for any environmental temperature, and has printing, storage, and USB data transfer functions. It also automatically identifies faults during the testing process. To accommodate most density relays on the market, it is designed with adjustable upper and lower pressure limits for greater flexibility. This product is easy to carry, simple to operate, highly precise, stable, and reliable, showcasing the instrument's "intelligent" features.
The SF6 Gas Density Relay Tester's primary function is to measure the alarm value, lockout value, alarm reset value, and lockout reset value of SF6 gas density relays. The measurement process can be conducted in single lockout or dual lockout modes. Additionally, the instrument features the capability to calibrate both room temperature pressure gauges and 20-degree pressure gauges.
Product Features
High Testing Accuracy: Core components use imported devices with high integration, precision, and good repeatability.
High reliability.
2. Highly Intelligent: The validation process does not require a constant temperature room and can be performed within any valid temperature range for SF6 gas
Density relay and pressure gauge verification. Utilizes dynamic compensation algorithms for pressure and temperature, automatically converts between pressure and equivalent pressure at 20°C, displaying both the pressure at the current temperature and the equivalent pressure at 20°C, thereby completely solving the difficulty of on-site verification for SF6 gas density relays.
3. Powerful Functionality: Capable of testing a set of alarm signals and two sets of lockout signals simultaneously, with features including ambient pressure gauge verification and 20-degree pressure gauge verification.
4. User-friendly Interface: Equipped with a 7-inch high-definition full-color touch screen, simple operation, beautiful interface, and all parameters
Status is clearly visible. The testing process is automatically completed by the equipment, without the need for manual intervention, eliminating the need for cumbersome manual gas line adjustments.
5. Complete Set of Transition Connectors: This portable instrument is equipped with various models of transition connectors. Most models allow for on-site calibration without disassembly, making it a commonly used choice for SF6 density relay calibration.
6. Low Gas Consumption: Minimal gas consumption during the verification process, no waste of SF6 gas, low testing costs, and no pollution.
7. Supports Data Storage: Built-in storage for instruments, allows immediate saving of test results, with power failure data retention function
Yes, historical test data can be queried and printed at any time.
8. Print Support: All relevant test results can be printed immediately after testing, and historical data can also be printed for analysis.
9. Clock Adjustment: Features an online system clock adjustment function.
10. USB Flash Drive Transfer: Supports transfer of historical test data to USB flash drives, easily readable through the accompanying host software, with simple and quick operations.
11. PC Software with Robust Features: The accompanying PC application software is powerful, user-friendly, enabling data display, word format saving, printing, and generating comprehensive test reports, facilitating centralized data management.
