Tower crane tower crane resistor resistor resistor wiring diagram tower crane manufacturer

Tower crane resistor is mainly used in AC 50Hz, voltage 500V and 440V DC voltage in the circuit, mainly for motor starting, braking, and speed of use. This series resistor capacity of 4.6 kilowatts. This series resistor alloy stainless steel sheet resistance material, which is a high electric resistance alloy with high temperature, plant life, than resistance, high surface load, temperature coefficient of resistance is small, the proportion of small series a little.