Performance characteristics of transformer direct resistance

Zc-205a transformer direct resistance tester is also known as DC resistance tester. It uses a new power technology, with small size, light weight, large output current and other characteristics. The whole instrument is controlled by single-chip microcomputer, which can automatically complete self inspection, data processing, display and other functions. It has the functions of automatic discharge and discharge indication, with high test accuracy and simple operation. It can realize the rapid measurement of transformer direct resistance

 

 

In order to let you have a better understanding of the products, this paper introduces some basic performance characteristics, technical specifications and system panel of zc-205a transformer direct resistance tester.

 

1、 Performance characteristics

 

1. The output current of the instrument is large and the weight is light.

 

2. The maximum output current of the instrument is 10A.

 

3. The measuring range of the instrument is wide, 0m Ω – 20K Ω, which can measure all the inductive DC resistance below 110KV level.

 

4. It has perfect protection circuit and strong reliability.

 

5. Vertical box structure, easy to operate on site.

 

6. It has sound discharge alarm, clear discharge indication and less misoperation.

 

2、 Technical indicators

 

1. Output current: 10a, 5A, 1a, 100mA, < 4mA

 

2. Range: 0m Ω ～ 20K Ω

 

3. Accuracy: 0.2% ± 2 μ Ω

 

4. Resolution: 0.1 μ Ω

 

5. Working temperature: – 20 ～ 40 ℃

 

6. Ambient humidity: ≤ 90% RH, no condensation

 

7. Working power supply: AC220V ± 10%, 50Hz ± 1Hz

 

8. Volume: 380mm long, 230mm wide and 250mm high

 

9. Net weight: 5kg

 

3、 System introduction

 

The instrument panel is as follows:

 

 

 

 

1. Power switch: power input port of the whole machine, with AC socket, safe and switch.

 

2. : the grounding column is used for the grounding of the whole machine shell, which belongs to the protection ground.

 

3. I +, I -: current output terminal.

 

4. V +, V -: voltage input terminal,

 

5. Display: 128 × 64 dot matrix LCD, displaying menu, current and resistance value.

 

6. Gray scale adjustment: it can adjust the contrast of display characters.

 

7. Reset key: the whole machine returns to the initial state and cuts off the output current.

 

8. ▼: cursor movement key, used to move the cursor between the menu items, and the selected items are highlighted.

 

9. Select / test key: after selecting the menu, press this key to change the menu content. Under the test menu, press this key to start the instrument according to the selected range for testing. After the resistance value is displayed, press this key for 1-2 seconds to restart and clear the old data not allowed in the data buffer.

 

I believe that after reading this article, you have a basic understanding of zc-205a transformer direct resistance tester. Of course, if you don’t understand anything, you can consult our online customer service.