It is a high-precision replacement product for DC single and double arm bridges. The DC resistance fast tester adopts advanced switching power supply technology and displays measurement results via a dot matrix LCD. It overcomes the disadvantage of other similar products where LED display values are difficult to read in sunlight, and also features an automatic arc suppression function. It is an essential test item for transformers after handover, major repairs, and tap changer changes. Under normal circumstances, using traditional methods (bridge method and voltage drop method) to measure the DC resistance of transformer windings and high-power inductive equipment is a time-consuming and labor-intensive task. To change this situation, shorten measurement time, and reduce the workload of test personnel.
Usage Tips for High-Precision Dual-Channel Transformer DC Resistance Tester:
1. Before switching the tap changer of an on-load tap-changing transformer, be sure to reset. After discharging, wait until the discharge prompt sound ends and the prompt message disappears before switching the tap changer.
3. After the test, press the "Reset" button, and wait until the discharge indicator light goes out and the prompt message disappears before turning off the power and disconnecting the wires.
4. During the test, avoid power outages or test clamp detachment.
5. Connect the ground wire before turning on the power, and disconnect the ground wire after the test.
