How to get industrial chiller compressor power supply?
The refrigeration compressor is the core part of the industrial chiller, and if it is a new equipment, the compressor's power cord is connected, but if the compressor is broken or it needs to be repaired or replaced, there is a question about how to connect the compressor The problem. In order not to let you connect the wrong and burn the compressor, Xiao Bian need to give you do not understand or love knowledge colleagues to popularize the compressor-related wiring knowledge.
First of all, according to the power supply compressor to 220V / 380V points, 220V is generally used for low-power chiller, 380V for high-power equipment, and now give you a separate explanation.
First, the single-phase compressor common terminal C, the main winding side R, to pay the winding end S method of determining:
According to the main and auxiliary winding diameter of the single-phase compressor, the number of turns is not the same as the DC resistance value is not the same principle (the main winding C ~ R resistance is smaller, the secondary winding C ~ S resistance slightly larger, R ~ S resistance Value is the sum of the main and auxiliary winding resistance).
With a multimeter resistance file, assuming that any terminal for the C-side, a multimeter table with a hypothetical common terminal contact, and the other table pen with the other two terminals, measured resistance, respectively: 3.5Ω, 4.2Ω, It is assumed to be correct, then the other end of the smaller resistance value is the main winding end R, and the other end of the resistance value is slightly larger. Using the same method, it is assumed that the common terminal C, the main winding side R, and the winding winding end S can be found three times.
Air conditioning compressor is the three wiring points, respectively, is to start the winding and run the winding, you can use a multimeter to distinguish the above winding, the common point to find out, start the winding resistance is less than running the winding, 3 points to distinguish after the next step It is wiring.
Remember that the common point is usually marked with a letter for the C, with the zero line connected to the public point C, with the FireWire then one of the points of the capacitor, the other point of the air conditioning compressor start winding a point, the compressor running winding The point of connection to the capacitor just started on the line of fire on it.
Second, 380V compressor wiring method
If the compressor is three-phase 380V voltage, the three FireWire directly connected to the press terminal, and then power, observe the forward or reverse, the compressor reverse noise, vibration, is relatively stable, Turn off immediately after the power, and then any two of them Firenotes transposition, is the correct wiring method.