BKZ-E100 Transformer DC Resistance Tester

Estimated delivery : 30 Days; MOQ : 1 PCS
Product Introduction Overview :
The DC resistance of the transformer is a must-test item for semi-finished products, finished products, factory tests, installation, overhaul, after changing the tap switch, handover tests, and preventive tests by the power department during transformer manufacturing. It can check the welding quality of the winding joints and whether there is a short circuit between turns of the winding. It can detect whether the contact of each position of the voltage tap switch is good, whether the actual position of the tap switch is consistent with the indicated position, whether the lead wire is broken, and whether there are broken strands of multi-strand wires. The instrument adopts a new power supply technology, with the characteristics of small size, light weight, large output current, good repeatability, strong anti-interference ability, and perfect protection function. The whole machine is controlled by a high-speed single-chip microcomputer, with a high degree of automation, and has automatic discharge and discharge alarm functions. The instrument has high test accuracy and easy operation, and can realize the rapid measurement of the DC resistance of the transformer.

Features :
High degree of automation and easy operation.
It adopts high-frequency switching power supply technology with large output current, and is suitable for DC resistance measurement of large and medium-sized transformers.
The protection function is perfect, which can reliably protect the instrument from the impact of reverse electromotive force, and the performance is more reliable.
With audible discharge alarm and clear discharge indication, it can reduce misoperation.
The response speed is fast, the on-load tap changer can be directly switched in the measuring state, and the instrument automatically refreshes the data.
It adopts a vertical chassis structure, which is convenient for on-site use.
Intelligent power management technology ensures that the instrument always operates at minimum power, effectively reducing internal heating and saving energy.
Dot matrix LCD, Chinese menu.
Thermal printer, high speed, quiet, prints out test results.

Technical Parameters Specifications :
Output current: 2A5A, 10A, 20A, 40A, 50A, 100A
Range: 10μΩ～100mΩ (100A range)
40μΩ～400mΩ (50A range)
50μΩ～500mΩ (40A range)
100μΩ～1Ω (20A range)
500μΩ～2Ω (10A range)
1mΩ～4Ω (5A range)
0.06Ω～2.5Ω (2A range)
Accuracy: 0.2%
Resolution: 0.1μΩ
Working temperature: -10～40℃
Ambient humidity: ≤80%RH, no condensation
Working power supply: AC220V±10%, 50HZ±1HZ