L68B2 Mast Section When the new tower crane is installed, how to connect and adjust the electrical equipment?
(1) correctly connect and adjust the electrical equipment according to the local power supply voltage
L68B2 Mast Section：
http://www.towercranesupply.com/product/l68b2-mast-section-for-tower-crane-masts
① check all electrical equipment, such as motor, controller, contactor, resistor, collecting ring, fuse, over-current relay, etc. Check whether the action and operation are normal, whether the noise of the motor is normal, and whether there is grease in the bearing. Also check whether the neutral part is well grounded
② check the insulation resistance between the three-phase windings of the motor and between each phase winding and the shell with a megger (also known as a megger), and the value shall be at least greater than 0.5m Ω. Also check the insulation of wires and cables, and wrap or replace the damaged parts.
L68B2 Mast Section：
http://www.towercranesupply.com/product/l68b2-mast-section-for-tower-crane-masts
(2) it should be considered that the change of the wiring mode of the motor or electrical appliance or the exchange of electrical appliances will affect the rated output power or increase the input current, so the power supply protector (such as over-current protector, fuse, thermal relay) should be adjusted accordingly.
(3) check whether the rated working voltage of three-phase motor, electromagnet and various control appliances is consistent with the local power supply voltage. If not, make corresponding changes and adjustments, and make sure that the power supply voltage meets the use requirements of tower crane; or change the wiring of tower crane electrical appliances, and replace the electrical appliances with different rated voltage, so that they meet the requirements of local power supply voltage.
L68B2 Mast Section：
http://www.towercranesupply.com/product/l68b2-mast-section-for-tower-crane-masts
