Three-phase asynchronous motor current sampling resistance

 General sampling resistor value will be selected in the following one ohm, belongs to the milliohm resistance, but part of the single phase motor price resistance, a sampling voltage requirements, such as have to choose large ac motor resistance values, but such a large resistance, the error is large. In this case, the need to select the high precision than letter resistance, shenzhen jie than letter technology co., LTD is specialized in the production and sales of power supply for high precision SMD resistor (to 0.01% accuracy, namely one over ten thousand precision), so that sampling data is wholesalemotor.blogspot.com credible. Patch ultra-low resistance values (0.0005 ohms, 2 milliohm, lamination 3 milliohm, 10 milliohm, etc.), patch alloy resistance, high power resistance (35 w, 30 w, 20 w, 50 w and 100 w) and other products, can achieve the positive and negative temperature coefficient of 5 PPM.