Huazheng HZ-3150A 50A Transformer Winding Resistance Tester

The Winding Resistance Tester is an essential tool in the electrical industry, used to measure the resistance of winding coils in transformers, motors, and generators. Its high precision, user-friendly interface, wide measurement range, and temperature compensation features make it crucial for preventive maintenance, quality control, and field testing. By ensuring accurate measurements, this device helps identify potential electrical faults, enhancing the reliability and efficiency of electrical systems. Companies like Huazheng Electric emphasize the importance of such testing equipment in maintaining high operational standards.

Accurate measurement of winding resistance is vital for ensuring the proper functioning and reliability of electrical equipment. This tool helps detect potential issues such as poor connections, short circuits, and other faults that could lead to costly downtime or equipment failure.

I. Functional Characteristics

1.The entire system is controlled by a high-speed microcontroller (SCM), offering a high degree of automation and simple operation.

2.The instrument incorporates advanced power supply technology, with multiple current settings and a wide measurement range, making it suitable for measuring the DC resistance of large and medium-sized transformers.

3.The protection functions are comprehensive, reliably safeguarding the instrument from the impact of reverse potential, ensuring more stable performance.

4.Equipped with a sound discharge alarm and clear discharge indicators, it helps reduce the risk of misoperation.

5.Intelligent power management technology ensures the instrument operates in a minimum power state, effectively saving energy and reducing heat generation.

6.The 7-inch high-brightness touch color LCD provides a clear display even under strong light, with full touch-screen operation and easy switching between Chinese and English.

7.The instrument includes a calendar clock and power loss storage, capable of storing up to 1,000 sets of test data, which can be accessed at any time.

8.The instrument supports Bluetooth communication, RS232 communication, and USB interfaces for computer connectivity and U-disk data storage.

9.Equipped with a built-in microprinter, the instrument can print measurement results directly.

10.The instrument can be controlled via an Android phone or tablet. By following the WeChat official account and downloading the dedicated app, users can control the instrument through special software, test data, and upload it for convenient access.

II.Key Technical Indexes

item	technical indicators and parameters	remarks
test current	<20mA、2.5A、5A、10A、20A、50A
measuring range	40μΩ～400mΩ （50A） 100μΩ～1Ω （20A） 500μΩ～2Ω （10A） 1mΩ～4Ω （5A） 2mΩ～8Ω (2.5A）	accuracy：±(0.2%+2word)
measuring range	10Ω-20KΩ （<20mA）	accuracy：±(0.5%+2word)
meminimum resolution solution	0.1μΩ

indication	liquid crystal display	the resistance shows a valid number of 4 digits
data storage	1000 Groups
work environment	Ambient temperature: 0℃ ~40℃ relative humidity: <90% RH, no condensation
power suply	AC 220V±10V，50Hz±1 Hz	protective tube 10A
maximum power dissipation	1000W
external dimensions	main engine：405×230×355（mm） Wiring box：360×260×180（mm）
weight	main engine15.1KG Wiring box: 5.75KG
test line length	standard configuration13metre	length can be customized