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Building 6, Optics Valley Electromechanical Industrial Park, No. 84 Gaoxin 5th Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province
Wuhan Ultra High Voltage Power Technology Co., Ltd
Building 6, Optics Valley Electromechanical Industrial Park, No. 84 Gaoxin 5th Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province
The reliable operation of SF6 switches, which are widely used in power systems, has become one of the most concerned issues for power supply and consumption departments. SF6 gas density relay is an important component used to monitor the changes in SF6 gas density in the SF6 switch body during operation, and its performance directly affects the safety of SF6 switch operation. The SF6 gas density relay operating on site often experiences inflexibility and poor contact of contacts after a period of time due to infrequent operation. Some density relays may also have poor temperature compensation performance, which can lead to misoperation of SF6 density relays when the ambient temperature suddenly changes. Therefore, DL/T596-2021 "Preventive Testing Regulations for Power Equipment" stipulates that each SF6 switch user unit should regularly verify the SF6 gas density relay. From the actual operating situation, it is also necessary to regularly calibrate SF6 density relays and pressure gauges during on-site operation.
The pressure of gas enclosed in a container varies with temperature. In order to have a unified standard for comparison, we usually use the relative pressure value of 20 ℃ as the standard value. When calibrating density relays, the measured pressure is converted into an equivalent pressure value at 20 ℃ based on the correspondence between pressure and temperature, and then compared.
This product is an intelligent SF6 gas density relay calibration instrument. This calibrator uses high-precision pressure sensors and high-speed A/D converters, combined with a 32-bit high-performance microprocessor, to perform performance verification on various SF6 gas density relays. It can accurately measure the pressure value at the current temperature when the signal is activated, automatically convert the standard pressure at any ambient temperature to 20 ℃, and has printing, storage, and USB conversion functions. At the same time, it can automatically identify faults during the testing process and determine the contact status of the density relay. This product is easy to carry, easy to operate, has high testing accuracy, strong stability, and good reliability, reflecting the "intelligent" characteristics of the instrument.
Product nickname: SF6 density relay calibrator, fully automatic density relay tester, sulfur hexafluoride density relay calibrator, SF6 gas density relay calibrator, SF6 density relay tester, relay calibrator, SF6 gas density relay calibrator
Product parameters
UHV-615 SF6 gas density calibratortechnical parameters
| measurement accuracy | 0.2 F●S |
| Pressure display resolution | 0.001MPa |
| Pressure measurement range | 0~0.99MPa |
| Temperature measurement range | -20℃~80℃ |
| Temperature measurement error | ±0.5℃ |
| SF6 gas emissions | During the entire verification process, SF6 gas emissions are extremely low |
| display mode | Industrial grade 7-inch full-color high-definition LCD screen, displaying both measured pressure values and equivalent pressure values at 20 ℃ |
| operation method | touch screen |
| Printing method | Array printing |
| data storage | Up to 1000 measurement data can be stored |
| working power supply | 24V lithium battery power supply |
| Total power consumption | ≤20W |
| Host size/weight | 400×320×160(mm3)/ 6.2kg |
| Attachment box size/weight | 400×370×200(mm3) / 4.8kg |
Note:
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. If there is any act of theft or copying, legal responsibility will be pursued.
2. For more information on ultra-high voltage products, please enter the product center.
Product features
1. High testing accuracy: The core components are imported, with high integration, precision, repeatability, and reliability. Due to its use of high-speed sampling A/D, it can not only measure density relays with conventional operating values, but also density relays with particularly small operating values
2UHV-615 SF6 gas density calibratorThe calibration process does not require a constant temperature chamber, and SF6 gas density relays and pressure gauges can be calibrated within any effective temperature range. Using pressure and temperature dynamic compensation algorithms, automatically convert pressure and 20 ℃ equivalent pressure values, and display the pressure at the current temperature and the equivalent pressure at 20 ℃, solving the difficult problem of on-site calibration of SF6 gas density relays
3. Function *: Can measure density relays of different pressure types, both relative pressure and pressure density relays can be measured
4. The initial state of the 1-3 sets of contacts in the density relay can be in any form (normally open or normally closed), and the up and down values of the 1-3 sets of contacts can be measured simultaneously, such as alarm, lockout, overpressure, etc. Therefore, this instrument can adapt to the fully automatic calibration of all new and old density relays
5. Simultaneously displaying the current pressure and ambient temperature during measurement, solving the problem of on-site calibration of density relays
6. Human computer interface friendly: equipped with a 7-inch high-definition full-color touch screen, easy to operate, beautiful interface, and all parameters and status are clear at a glance
7. Complete set of transition connectors: This product is a portable instrument equipped with multiple types of transition connectors. Most models of switch density relays can be verified on-site without disassembly, and are calibrated for SF6 density relays
8. Low gas consumption: During the verification process, the gas consumption is minimal, SF6 gas is not wasted, testing costs are low, and there is no pollution
9. Support data storage: The instrument is equipped with a built-in large capacity memory, which can instantly save test results and has the function of saving power down data. It can query and print historical test data at any time
10. Support printing: After the test is completed, all relevant test results can be printed immediately, and historical data can also be printed for analysis
11. USB flash drive storage: supports USB flash drive storage of historical test data, which can be read through the supporting upper computer software for easy and fast operation
12. Convenient to carry: The instrument is powered by a large capacity lithium battery and does not require AC power, solving the problem of difficulty in obtaining electricity outdoors. After the instrument is fully charged, it can work for a long time and can also be plugged into a charger to work at the same time
13. PC software function *: matched with PC upper computer application software function *, easy to operate, realizing data display, Word format saving, printing and generating complete test reports, convenient for centralized data management
14. Switching between Chinese and English: Customers can switch between Chinese and English on the main interface of the instrument, which can meet the needs of different customer groups, and other languages can be customized






Product Video Product Atlas
Product Attachment Diagram
host
gas cylinder
trachea
6-core test wire
adapter
adapter
USB drive
PTFE tape
power cord
fuse
printing paper
Product detail images
host
host
Host panel
screen
Tracheal connection hole
pressure gauge
Measurement port
Signal interface/temperature sensor
control key
power switch
printer
charging port
USB port
air vent
Partial gas cylinder
accessory box
Host outer box