Product IntroductionProduct Introduction
The DC resistance of transformers is a necessary measurement item for semi-finished and finished products in transformer manufacturing, factory testing, installation, major repairs, changes to tap changers, handover testing, and preventive testing by power departments. It is possible to check the welding quality of the winding joints and whether there is a turn to turn short circuit in the winding. It can also detect whether the various positions of the voltage tap changer are in good contact, whether the actual position of the tap changer matches the indicated position, whether the lead wire is broken, and whether there are broken wires when multiple wires are wound together. In order to meet the needs of rapid measurement of transformer DC resistance, our company has developed the HTZZ-40A DC resistance rapid tester. This instrument adopts a new power technology, which has the characteristics of small size, light weight, large output current, good repeatability, strong anti-interference ability, and complete protection function. The whole machine is controlled by a high-speed microcontroller, with a high degree of automation and automatic discharge and discharge alarm functions. The instrument has high testing accuracy, easy operation, and can achieve rapid measurement of transformer direct resistance.
Product Name: DC Resistance Speed Tester, Transformer DC Resistance Tester, Transformer Winding DC Resistance Tester, Transformer DC Resistance Speed Tester, Transformer DC Resistance Fast Tester, Inductive Load DC Resistance Speed Tester, Inductive Load DC Resistance Fast Tester, Inductive Load DC Resistance Tester, Direct Resistance Tester
Product parametersProduct Parameters
Technical Parameter
output current | 2.5A, 5A, 10A, 20A, 40A |
Range | 2.5A: 2mΩ~8Ω |
5A: 1mΩ~4Ω | |
10A:500μΩ~2Ω | |
20A:100μΩ~1Ω | |
40A:50μΩ~500mΩ | |
accuracy | 0.2% |
resolution | 0.1μΩ |
operation temperature | 0~40℃ |
ambient humidity | ≤ 90% RH, no condensation |
Working power supply | AC220V±10%,50Hz±1Hz |
External dimensions | 400mm*230mm*380mm |
Instrument weight | 17.5kg |
1. The appearance of the product is subject to the actual product. Technical parameters and models are subject to change without prior notice. If there is any act of theft or copying, legal responsibility will be pursued.
2. To learn more about Huatian products, please enter the product center. Service Hotline: 400-8855-448
Product FeaturesProduct Characteristics
1. The whole machine is controlled by a high-speed microcontroller, with a high degree of automation and easy operation
2. Adopting high-frequency switching power supply technology, the output current is large, suitable for measuring the DC resistance of large and medium-sized transformers
3. The protection function is complete, which can reliably protect the impact of back electromotive force on the instrument, and the performance is more reliable
4. Equipped with sound discharge alarm, clear discharge indication, reducing misoperation
5. Fast response speed, can directly switch to on load tap changer in measurement state, and the instrument automatically refreshes data
6. Adopting a vertical chassis structure for easy on-site use
7. Intelligent power management technology ensures that instruments always operate at their minimum power, effectively reducing internal heat generation and saving energy
8. Dot matrix LCD, Chinese menu, printed output
Product videoProduct Video
Product AtlasProduct Picture
Product Attachment Diagram
complete set
host
attachment box
Standard resistance
TEST
TEST
ground wire
power line
fuse
printing paper
Instruction manual, inspection report, certificate of conformity
Product detail diagram
host
Side of the host
Front of the host
panel
monitor
Current meter head
terminal
Function keys
outlet
printer
precautions
attachment box
product certificateProduct Certificate
Our company's products are strictly produced in accordance with international and national standards and industry regulations. They have passed the testing of national, provincial, and municipal power research institutes, measurement centers, and authoritative power departments, and have fully passed the ISO9001 international quality management system certification, the People's Republic of China manufacturing measuring instrument license, GB/T19001-2016 quality management system requirements, GB/T24001-2016 environmental management system requirements, and GB/T45001-2020 occupational health and safety management system requirements.