【Summary】Users need to master the wiring method when using dry-type transformers. If there is a problem in the wiring, it is easy to cause malfunction. So what is the wiring method of the dry-type transformer? The following editor will introduce it in detail. Wiring method of dry-type transformer: 1. Short-circuit the "input" and "output" terminals of the transformer to test the insulation resistance with the ground wire with a megohmmeter. When measuring with a 1000V megger, the resistance is greater than 2M ohms. 2. The cross-section wiring of the transformer input and output power lines should meet the requirements of the current value; it is appropriate to configure the current density at 2-2.5 A/min2. 3. The input and output three-phase power lines should be connected to phase A, phase B, and phase C respectively according to the color of the busbar of the transformer terminal block, yellow, green, and red. The neutral line should be connected to the neutral neutral line of the transformer, the grounding line and the transformer The shell and the transformer point are connected. The ground and neutral wires we usually talk about are drawn from the neutral point of the transformer. (For example, the transformer box should be connected to the corresponding ground mark of the box body). Check the input and output lines to confirm that they are correct. 4. First power on at no-load and observe and test that the input and output voltages meet the requirements. At the same time, observe whether the machine has abnormal noises, sparks, odors and other abnormal phenomena. If there are abnormalities, please disconnect the input power. 5. After the no-load test is completed and normal, the load can be connected.