Product Overview：

The JH2810 DC resistance tester of transformers is a necessary test item for semi-finished and finished products in transformer manufacturing, including factory testing, installation, overhaul, change of tap changer, handover testing, and preventive testing by the power department. It can check the welding quality of the winding joints and whether there is any inter turn short circuit in the winding. It can also check whether the contact at various positions of the voltage tap changer is good, whether the actual position of the tap changer matches the indicated position, whether the outgoing wire is broken, and whether there are broken strands when multiple wires are wound together. This instrument adopts a new power supply technology, which has the characteristics of small size, light weight, high output current, good repeatability, strong anti-interference ability, and complete protection functions. The entire 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, simple operation, and can achieve rapid measurement of transformer direct resistance.


Product Features: ​ 

1. The instrument provides 6-gear output current selection and an automatic gear. The maximum output current is 10A
2. It is applicable to inductive test objects such as transformer, mutual inductor, reactor, generator, motor, etc., and can also be used to measure test objects such as switches, copper bars, contactors, relay contacts, metal wires, cable accessories, etc
3. With perpetual calendar, 99 groups of data storage, automatic temperature conversion and other functions, no data loss after shutdown
4. A printer can output and print test data


Technical parameters: ​ ​

1. Working power supply: Charge with Electricity
2. Output current: 1mA, 10mA, 100mA, 1A, 5A, 10A, automatic
3. Measuring range: 0-20k Ω
4. Accuracy:  ±(0.2% RD+0.05% FS)
5. Printer: micro printer
6. Minimum resolution: 1u Ω
7. Display: large screen color LCD

Model

JH2810

Working power supply

220V (AC)

Output current

1mA, 10mA, 100mA, 1A, 5A, 10A, automatic

Measuring range

0-20k Ω

Minimum resolution

1u Ω

Weight

8kg

Accuracy

 ±(0.2% RD+0.05% FS)

Display

Large screen color LCD