Suitable for transformer testing of three-phase transformer, z-winding transformer, rectifying transformer and railway electrical system
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According to IEC and relevant national standards, transformer ratio test is a must in the process of power transformer production, user handover and maintenance test. This can effectively supervise the quality of transformer products before delivery and in the process of use, to prevent short circuit, open circuit, connection error, internal fault or contact fault of voltage regulator switch. My company independent development, the development and production of variable thewire tester besides completely according to the requirements of the user field use, easy to operate, fully functional, data is a stable and reliable characteristics could be blind test (don't know any nameplate parameters of the transformer under test under the condition of accurate measurement variable ratio and group number, and can accurately measure the phase Angle) of the variable thewire tester; It can adapt to various requirements of transformer transformer ratio test (including z-type transformer, rectifying transformer, electric furnace transformer, non-hour shift phase change, traction transformer, Scott and reverse Scott transformer), and is a variable ratio tester with advanced technology, perfect test items and comprehensive measurement parameters in domestic transformer ratio test so far.
Variable ratio tester adopts large-screen true-color liquid crystal as the display, and the whole English graphical operation interface is equipped with English character prompt message and multi-parameter display liquid crystal display interface. Human-machine dialogue interface is friendly, vector diagram display and wiring judgment provide a reliable basis for checking the correctness of the circuit. Full touch conductive silicone keyboard operation mode, operation feel good, easy to learn. Variable ratio tester built-in large capacity power loss without loss of data storage, can save on-site verification data, can expand storage of up to 1000 groups of on-site verification results, can provide background microcomputer management software, through the U disk to transfer the results to the computer, production report, printing, realize microcomputer management. Variable ratio tester adopts the engineering plastic shell independently designed and moulded by our company, and the appearance of the instrument is beautiful and practical. Field test is easy to operate.
product names：Transformer ratio group tester、Transformer variable ratio tester、Transformer transformer ratio automatic tester、Fully automatic variable ratio tester、Transformer ratio group measuring instrument、Transformer ratio measuring instrument、Transformer transformer ratio automatic measuring instrument、variable ratio tester
| Ratio measurement range | 0.8～10000 |
| High measurement speed | three-phase test can be completed within 40 seconds. |
| Voltage measurement accuracy on HV side | 0.05% |
| Voltage measurement accuracy on LV side | 0.1% |
| Phase angle measurement accuracy | 0.1° |
| TTR measurement accuracy | 0.1%（0.9－200） |
| 0.2%（200－2000） | |
| 0.3% (2000－10000） | |
| Dimensions | 320*240*130mm3 |
| Weight | 3kg |
1.The appearance of the product shall be subject to the actual product，Technical parameters with model if there are any changes，without notice.In case of misappropriation or copying, legal liability will be investigated.
2. For more information about Wuhan UHV, please enter product center . Service email：info@hvtest.cc
1、Input single power, internal digital combination standard sine wave test source output.
2、Phase angle measurement function: measure the phase angle between high voltage side and low voltage side. Measure the turn ratio and angle of “Non integral point” transformer.
3、It can conduct single-phase measurement and three-phase winding automatic test. Three phase turn ratio value, phase angle value, error, tapping position, tapping value can be measured for once.It also can identify connecting group number automatically.
4、Testing results can be displayed in the form of digit and hexagon vector diagram, which makes transformer connecting group can be made out obviously.
5、With blind test function: There is no need to choose connecting method and group. When measuring Y/△、△/Y transformer, no external short-circuit is needed, connecting method can be shifted automatically according to the chosen testing contents.
6、With tapping test function: TTR and TTR error in the position of each tapping switch can be gauged quickly. Just input rated TTR once, instead of inputing over and over again, TTR error in tapping position can be calculated.
7、With functions of turns ratio measurement and voltage TTR measurement.
8、With 5.6 inch LCD, the effect of data & figure display is visualized and fine.
9、With small size and light weight, it is easy to carry.
10、With built-in high capacity chargeable lithium?battery. Test can be conducted without any power supply on site, and once the battery is charged fully, it can make measurement for more than 500 times continuously.
Enterprise products in strict accordance with international and national standards and rules of industry production, through the national, provincial and municipal electric power research institute and electric power authorities detection, measuring center, fully passed the ISO9001 international quality management system certification, the licence for manufacturing measuring instruments of the People's Republic of China, GB/T19001-2016 quality management system requirements, GB/T24001-2016 environmental management system requirements, GB/T45001-2020 occupational health and safety management system requirements.
email： info@hvtest.cc
Skype： Tina Qiao
+8615172408058
