The crane of the linkage console manufacturer is more expensive, costly, if used improper, will bring us huge economic losses, our use and maintenance should pay special attention.
When choosing a crane resistor, it is necessary to match the motor model, power, electrical duration, controller model, and other parameters. The bridge should be used to check the resistance and total resistance value of each segment when the bridge is used. The two electric or double car cranes used by the large car operation must select the same manufacturer, the same model of the product, close to the resistance value of each segment, to avoid the wire length and motor rotor internal resistance of the electrical rotor by connecting to the resistor. The difference in the value is different, and the mechanical properties of the two drive motors must be matched. In order to cool the heat, the dust and metal oxide of the resistance element are required to periodically remove the resistance elements. Regular measuring the phenomenon of breaking and short circuit, whether the insulating ceramic is broken, the fastening screw is loose, the ground insulation resistance of the resistor, the resistance value should not be less than 0.5m.
When the operation should be observed at any time, when the resistor temperature is higher than the ambient temperature 350, it is considered to increase the capacity of the resistor to 100 or less, indicating that the resistor capacity is very sufficient. If the resistor is disconnected, it can be connected to the disconnection force in a short time in urgent use. After the work is completed, it should be replaced in time, and the soldered resistors should be used to use brass, silver, copper and other hard solders.
The crane resistor is open, so it is necessary to set up and intercepted in indoors to prevent staff to accidentally touch the electrical portion of the resistor. For safety, there must be a ground wire, do not stay in the middle of the time.