ZGY-1A high-precision DC resistance tester

ZGY-1A high-precision DC resistance tester

This instrument is based on a high-speed microcontroller and can measure three circuits synchronously, display and automatically calculate the imbalance rate. Especially for measuring the DC resistance of large multi tap transformers, it can greatly shorten the measurement time and improve work efficiency.

Product Introduction:

In order to meet the needs of rapid measurement of transformer DC resistance, our company has developed a new generation of this DC resistance tester using our own technological advantages. The three channel DC resistance tester 20A adopts a new power supply technology, which has the characteristics of small size, light weight, and large output current. The whole machine is controlled by a microcontroller, which automatically completes self checking, data processing, display and other functions. It also has functions such as automatic discharge and discharge sound alarm indication. The instrument has high measurement accuracy, easy operation, and can achieve rapid measurement of transformer DC resistance.

ZGY-1A high-precision DC resistance tester

After automatically or manually selecting the test current based on different models of power transformers (it is recommended to use automatic current selection);

It can test and display test results at the fastest speed possible;

Simultaneously equipped with discharge indication and full Chinese LCD display;

This instrument has a good human-machine interface, simple and convenient operation, and is the * equipment in DC resistance testing work.

Product Features

1. Three measurement circuits measure synchronously, display simultaneously, and automatically calculate the imbalance rate.

2. The functional configuration is highly flexible, capable of three-phase measurement, two-phase measurement, and single-phase measurement. The output current can be combined arbitrarily. For a 3 × 10A tester, it can be combined into 10A+10A+10A mode, 10A+10A mode, 20A mode, and 10A mode, which can be used in extremely square ways

4. The measurement speed is fast, and for the high-voltage star side of the on load tap changer, there is no need to cut off the power or reverse the wire. One power on can measure the three-phase resistance values of all tap points. The low-voltage side can adopt a 20A high current mode. The entire process can greatly shorten the measurement time and improve work efficiency.

5. Highly intelligent design with clever function settings, capable of automatically detecting faults such as virtual connections in test lines.

6. Protection function *, capable of reliably protecting against the impact of back electromotive force on the instrument, with automatic discharge indication function