The two-in-one distribution transformer test system (direct resistance + ratio + energy efficiency grade) powered by large capacity lithium battery can complete the test of three projects
Reference standard: DL/T 1256-2013
Note:
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For the power system, the transformer is the core equipment in the system, so the long-term and reliable operation of the transformer is related to the stability and reliability of the entire system.
At present, distribution transformer DC resistance test, transformer ratio group test, transformer outage maintenance is a must test project, to complete the above detection and operation need to configure transformer DC resistance tester, transformer ratio group tester, each test need to carry two kinds of instruments. Because it is two independent instruments, each instrument is equipped with a dedicated test line, which requires separate testing during the test process, and requires frequent changes in the wiring mode, thus wasting a lot of manpower, material resources and hours.
Our company has innovated and developed a two-in-one distribution transformer test system (direct resistance + ratio) powered by a large capacity lithium battery. We only need a set of equipment, which can complete the test of two projects without frequent disconnection of the test line.
product names：transformer two-in-one comprehensive tester
| Direct resistance test | ||
| Output current | 20A、10A、5A、1A、0.1A、≤10mA | |
| Measuring range | 20 A range 0.5mΩ～ 100mΩ 10 A range 1.0mΩ～ 300mΩ | |
| 5 A range 10 mΩ～ 1.0 Ω 1 A range 200mΩ～ 6.0 Ω | ||
| 0.1 A range 2.0 Ω～ 60 Ω ≤10mA range 30 Ω～ 50 kΩ | ||
| Accuracy | ±(Reading x 0.2% + 2 words) | |
| Turn ratio test | ||
| Measuring range | 0.9～10000 | |
| Accuracy | ±(reading x 0.1% + 2 words)(500 or less) | |
| ±(reading x 0.2% + 2 words)(greater than 500 less than or equal to 3000) | ||
| ±(Reading x 0.3% + 2 words)(> 3000) | ||
| Resolution | 0.9～9.9999(0.0001) 10～99.999(0.001) | |
| 100～999.99(0.01) | ||
| 10000 and above (1) | ||
| Conditions of use and appearance | ||
| Working power supply | Built-in lithium battery, capacity 7.8AH | |
| Charging voltage | AC220V | |
| Service temperature | -10℃～50℃ | |
| Relative temperature | ≤90%, no condensation | |
| Weight/size | 6.5kg/318×280×204mm | |
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、One connection, can complete the direct resistance test, variable ratio test.
2、Direct resistance test function, for Yn, Y and △ winding can be tested in three-phase automatic way, and calculate the three-phase unbalance rate; The maximum output current is 20A, which can meet the very low resistance test of the low-voltage coil of the distribution network transformer.
3、Variable ratio test function, with three-phase, single-phase, Z-type transformer test function; PT/CT variable ratio and polarity test function; Blind test function.
4、With a variety of wired and wireless communication interfaces, convenient instrument function expansion.
5、The instrument adopts embedded Linux operating system, which has high security, fluency and ease of use.
6、The instrument adopts A7+M4 dual-core architecture, which meets the real-time measurement and the smooth operation.
7、Industrial 7 inch large screen display, fresh and simple display style design, for you to create a comfortable and convenient human-computer interaction experience.
8、This instrument uses large capacity lithium battery power supply, built-in charger.
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
