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The main performance of the DC resistance tester

time:2021/6/24   source:华天电力  reading:720 time

The DC resistance tester has the following characteristics:


1. Fast test speed: The large output charging current of this instrument can reach 1A, which can effectively compensate the current inertia of large inductance equipment during measurement, accelerate the saturation of the iron core, thus shorten the charging time and improve the test speed. It is simpler than traditional instruments. The double-arm bridge is hundreds of times faster.


2. High accuracy: In addition to the advanced four-terminal measurement method, this instrument also uses advanced constant current power supply technology to keep the charging current of the inductive load at a relatively stable value, with stable anti-inductance and anti-interference ability Strong, thereby ensuring the accuracy of the measurement. In addition, high-quality components imported from abroad are used, and the measurement results are highly accurate and repeatable.


3. AC and DC dual purpose: This instrument is equipped with a rechargeable battery pack, AC and DC power supply, portable design, easy to use and carry.


Transformer DC Winding Resistance Tester.png


Note for DC resistance tester:


1. Be sure to reset before testing the reverse tapping of the no-load voltage regulating transformer. After the discharge is over, the alarm will stop for more than 10 seconds before the tapping point can be switched.


2. Before removing the thread, be sure to wait for the alarm to stop after the discharge is over, and wait for more than 10 seconds before removing the thread to ensure that the charge is completely released.


3. When selecting the current, please refer to the range in the technical index column, and do not use over range or under range. When the range is exceeded, the instrument is always in the "charging" state because the current does not reach the preset value. When the range is under-range, “current too small” is displayed. When these two states appear, confirm the range and select the appropriate current for testing.


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