Electric hoist startup process is measured from power,hoist and trolley the rotor speed is increased from zero to the rated value in the process, according to the characteristics of the DC electric hoist, it is commonly used in start-up mode with full pressure start, the string into the start-up and step-down start rheostat three.
Electric hoist hanging objects running in conditions permitting, the best hanging around 0.5m from the ground, by professionals in the electric hoist hanging objects help steady the object behind and around obstacles under the command runs. Do not run electric hoist intermittent,load chain long-distance running, it is best to send electricity long run as well. Electric hoist hanging objects should be to ensure the smooth running, electric hoist if hanging objects swing or jitter, should be running side edges steady running hook, not let it shake or swing.
When the armature windings of electric hoist power, its current rapid rise, resulting in startup counter, driven rotor and counter electromotive force generated, with the rise of the rotor speed,chain block back EMF increases, the armature current decreases, start switch cabinet down, the rotor speed increases slowly when starting electric hoist with load counters counters equal to regional stability, speed, start over.