DC resistance of transformer is the, installation, handover test and preventive test by electric power department
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DC resistance of transformer is the essential item to be tested in semi-finished product, finished product delivery test, installation, handover test and preventive test by electric power department, and is effective to help find manufacturing defects such as materials selection for transformer coil, welding, looseness on connection, strand breaking, wire breaking and so on, as well as hidden dangers after operation. To satisfy the requirement for quick measurement of DC resistance of transformer, our Company has developed three-channel, DC resistance tester aiming at YN connection winding. The tester can fulfill functions such as simultaneous energization on three phases, independent current sampling, voltage sampling, as well as simultaneous measurement and display of three-phase resistance value and three-phase unbalance rate, thus can significantly reduce test time for DC resistance of transformer, solve the problem of long test duration for DC resistance of each tapped winding of electric power transformer. It requires only 1/3 of the time required by traditional method.
product names：Transformer dc resistance test in three channels、Dc resistance tachometer、 Transformer dc resistance test instrument、 Transformer winding dc resistance test instrument、 Transformer direct resistance speed meter、 Transformer direct resistance quick test instrument、Inductive load Dc resistance tachometer、Inductive load dc resistance rapid test instrument、Inductive load dc resistance test instrument,Transformer dc resistance test for three circuits、Three loop transformertest、Three channel dc resistance tester
| Output curren | Automatic current selection (max. 20A) | ||||||
| Measurement range | 0～100Ω | ||||||
| Accuracy | ±（0.2%+2digits） | ||||||
| Minimum resolution | 0.1μΩ | ||||||
| Working temperatur | -20～40℃ | ||||||
| Ambient humidity/td> | ≤ 80% RH, no condensation | ||||||
| Power supply | AC220V±10%，50Hz±1Hz | ||||||
| Dimension | 400mm*340mm*195mm(L*W*H) | ||||||
| Weight | 8kg | ||||||
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、The instrument has big current output and can select current automatically; convenient for operation
2、Three-channel measurement, real time collection, simultaneous measuring of three resistance values and calculating three-phase resistance unbalance degree
3、Not only able to measure three phases simultaneously, but also able to measure with single channel as traditional method; possessing temperature conversion function, convenient for use
4、Possessing perfect protective circuit which is highly reliable
5、Built-in calendar clock, 500 sets of data storage, retrieval and printing function
6、 Be able to set printing information such as phase sequence and tapping position of resistance
7、 Industrial plastic shell case with light weight; convenient for carrying
8、 Possessing audio discharging alarm with clear discharging indication to reduce misoperation
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
