Product Details

Instrument performance features: 

This instrument can complete single-item measurement, three-channel simultaneous measurement, three-phase item-by-item testing, automatic magnetizing method testing, temperature conversion function, equipped with data interface, one-time wiring, no need to change or disconnect wires during testing 

 

Technical specifications 

Performance features 1. This instrument automatically selects the output current (maximum output 20A).

2. Wide measurement range (0Ω-50Ω), capable of measuring inductive DC resistance of transformers, mutual inductors, etc.

3. The display uses a 480*272 dot matrix 65K color large screen, showing data clearly and easily readable.

4. This instrument has a perpetual calendar, 100 sets of data storage, automatic temperature conversion and other functions; data is not lost when powered off. This machine is also equipped with a printer to output and print test data, and a "USB drive" interface for convenient data export for review and editing.

5. This instrument is equipped with an RS485 communication interface, which, together with the host computer control software, enables remote control measurement.

6. This instrument has a three-phase simultaneous measurement function to handle star-connected windings with one-time wiring to complete three-phase DC resistance measurement, automatically calculate the three-phase unbalance rate, greatly saving measurement time and improving work efficiency. It can also use the phase-by-phase testing function to test transformers with YN, D (Y) connections; after testing, the three-phase unbalance rate is automatically calculated.

This instrument also has an automatic magnetizing function. For testing the windings of five-limb core low-voltage delta-connected transformers, it uses the method of high-low voltage series excitation. The instrument automatically connects the magnetizing circuit of the windings internally, enabling fast and accurate testing of the DC resistance of the low-voltage windings.

7. This machine has an audible discharge alarm and clear discharge indication, reducing misoperation.

8. This machine has protection against accidental connection to AC380V power supply, with alarm and protection functions to reduce damage from misoperation. It also has perfect back-EMF protection and strong arc suppression capability.

9. This machine features wide applicable temperature, high precision, shock resistance, anti-interference, high stability, and portability.



Note: The above information and technical parameters are compiled and released by Yangzhou Darui Electric Co., Ltd.