Darui Electric recommends:
I. Overview:
Transformer DC resistance is a mandatory test item during transformer manufacturing, before delivery, after installation for handover, and in power preventive tests. Measuring the DC resistance of transformers can effectively detect manufacturing defects such as issues with coil materials, welding, loose connection parts, missing strands, and hidden dangers during operation.
ZL-10A Active Transformer DC Resistance Tester is a fast transformer DC resistance testing device designed and produced by our company in accordance with the requirements of the DL/845.3-2004 standard. This instrument uses DSP as the processing core, is equipped with a 12V lithium battery, has a long working time, powerful functions, and automatically completes calibration, steady current judgment, data processing, resistance value display, and other functions. It can measure the DC resistance of various types of transformers.
II. Functional Features:
This instrument has the characteristics of simple operation, high precision, anti-interference, shock resistance, and portability. Its weight is one-third of similar products of the same level.
1. Adopts brand-new power supply technology, with high output voltage and constant output current.
2. Has automatic conversion of DC resistance at 20°C and printing function, which can greatly save time.
3. Brand-new anti-power frequency interference design ensures accurate measurement in environments with strong power frequency interference.
4. Fast measurement speed, stable and reliable results.
5. High test precision and good repeatability.
6. Simple operation, easy to carry, suitable for field operations.
III. Main Technical Indicators:
Model Parameters
|
FR-1505
|
FR-1510
|
Minimum Resolution
|
0.1uΩ
|
0.1uΩ
|
B
a
s
i
c
R
a
n
g
e
|
100mA
|
1Ω-200Ω
|
100mA
|
1Ω-200Ω
|
1A
|
100mΩ-20Ω
|
1A
|
100mΩ-20Ω
|
3A
|
20mΩ-8Ω
|
3A
|
20mΩ-8Ω
|
5A
|
10mΩ-4Ω
|
10A
|
5mΩ-2Ω
|
Measurement Range
|
100u Ω -3kΩ
|
100u Ω -3kΩ
|
Accuracy
|
0.2%±2 digits
|
Output Voltage
|
0-15V
|
Output Current
|
10mA-5A
|
10mA-10A
|
Working Power Supply
|
220V±10%
|
220V±10%
|
Output Power
|
75W
|
150W
|
Environment
|
Temperature: -5-45°C Humidity ≤85%
|
Weight
|
5kg
|
5kg
|
Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.
