The gas relay calibrator is mainly used in the power system to check the operation velocity of heavy gas protection, the operation volume of light gas protection and the sealing test of gas relay. In addition, it can also test the opening and closing pressure of the pressure relief valve, simulate the internal fault of the transformer, measure the differential pressure of the instantaneous pulse flow rate value, measure and control by microcomputer, display by digital, and print automatically. Complete functions, accurate and reliable test.
Compared with the typical equipment, the gas relay calibrator not only has great advantages in volume, weight and cost, but also solves the problem that the gas relay and pressure relief valve can not be calibrated in the transformer installation site, so it has a wide range of applications.
As an example, the zc-314 gas relay calibrator newly developed by Zhuo measurement and Control Institute will introduce the characteristics of the gas relay calibrator in detail.
Zc-314 gas relay calibrator is a kind of special equipment for detecting the opening and closing of gas relay for power transformer. The detector adopts advanced micro control technology, through detecting high-precision pressure sensor and simulating internal fault of transformer, the instantaneous burst pulse pressure method is used to calculate the flow rate constant value, so as to achieve the detection of heavy gas protection action of gas relay; the high-precision container combined with micro pressure sensor is used to detect the internal liquid volume of gas relay and calculate the light gas volume Value: through simulating the protection action process of pressure relief valve in case of internal fault of transformer, the opening performance test, closing performance test and sealing performance test of pressure relief valve are detected.
The characteristics of zc-314 gas relay calibrator can be summarized as follows:
1. The model management system of the test piece is added in the product, so that the instrument has corresponding test curve corresponding to different action characteristics of the test piece in the test process, so as to make the accuracy meet the requirements of domestic and foreign standard calibration bench test.
2. The advanced intelligent design makes the product more automatic. Compared with the same type of products on the market, the product has higher integration degree, real and reliable sampling results, and is convenient for users to carry and use. The operation prompt function of LCD makes the user use more simple and clear.
3. The instrument adopts miniaturized design, and the shell of control part adopts aluminum alloy valve, which is more suitable for on-site inspection.
4. The sealing performance test program of the pressure release valve is added to the instrument function, so that the test function of the whole machine can meet the specification requirements.
All in all, zc-314 gas relay calibrator is a high-tech product with small volume, light weight, complete functions, independent gas source, microcomputer measurement, which is the first in China and the leading level in the world, and is worth purchasing.
