Ideal equipment for measuring transformer windings and dc resistance of high power inductive devices
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Transformer dc resistance is a required test item for semi-finished products and finished products in transformer manufacturing, factory test, installation, overhaul, change of tap changer, handover test and preventive test in power sector.It can check the welding quality of the winding joints and the short circuit between the windings. It can check whether the contact of various positions of the voltage tap switch is good, whether the actual position of the tap switch is consistent with the indicated position, whether there is a fracture of the lead wire, whether there is a broken strand of multi-strand wire and winding, etc.In order to meet the need of rapid dc resistance measurement of transformer, htzz-40a dc resistance rapid tester developed by our company.The instrument adopts the new power technology, which is characterized by small size, light weight, large output current, good repeatability, strong anti-interference ability and perfect protection function.The whole machine is controlled by high-speed single chip microcomputer, with high degree of automation, automatic discharge and discharge alarm function.The instrument has high precision and easy operation, which can realize the rapid measurement of transformer resistance.
product names：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、Direct resistance test apparatus
| The output current | 2.5A、5A、10A、20A、40A |
| Amount of routine | 2.5A： 2mΩ～8Ω |
| 5A： 1mΩ～4Ω | |
| 10A：500μΩ～2Ω | |
| 20A：100μΩ～1Ω | |
| 40A：50μΩ～500mΩ | |
| The accuracy of | 0.2% |
| The resolution of the | 0.1μΩ |
| Working temperature | 0～40℃ |
| Environmental humidity | ≤90%RH，No condensation |
| Working power supply | AC220V±10%，50Hz±1Hz |
| Overall dimensions | 400mm*230mm*380mm |
| Instrument weight | 17.5kg |
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 huatian products, please enter product center . Service email：qiao@hvtest.cc
1、The whole machine is controlled by high-speed single chip microcomputer, with high degree of automation and easy operation
2、High frequency switching power supply technology, large output current, suitable for large and medium-sized transformer dc resistance measurement
3、The protection function is perfect, can reliably protect the counter potential to the impact of the instrument, performance is more reliable
4、With sound discharge alarm, clear discharge indication, reduce misoperation
5、Fast response speed, can be directly transferred in the measurement state load tap switch, the instrument automatically refresh data
6、Adopting vertical chassis structure, it is easy to use on site
7、Intelligent power management technology, the instrument always works in the state of minimum power, effectively reduce the internal heat of the instrument, save energy
8、Dot matrix LCD, Chinese menu, printout
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/T28001-2011 occupational health and safety management system requirements.
email： qiao@hvtest.cc
WhatsApp： +8615871365102
