crane eletronic tech

First, the environmental requirements

Power conditions can be a three-phase AC frequency in 50HZ about, voltage 380V, the rated voltage in the maximum with the engine and electrical appliances increased 10% during the current peak rated voltage is reduced by 15%.

2, lifting goods Bridge Crane during radiation should never exceed 380 degrees Celsius.

3, crane altitude workplace shouldn’t exceed 2200M, to 1100M when checking motor.

4, the operating scope of labor cannot be flammable, explosive and corrosive gases.

Second, the application of performance

1, the crane hook, lifting the braking distance was decreased braking must be less than one minute in the stable l distance of just one/65

2, the crane lifting weights should arrive rated crane wt

3 double trolley Mobile Crane. The operation of an two-car same machine is usually linked, can even be an outside action.

Electrical equipment selection principles

1, electrical equipment and components chosen the Tower Crane dedicated or why not be able to meet the requirements with the product on the crane.

2, should adopt the typical crane electrical control equipment.

3, the crane teams of resistor should adopt the typical products, like special needs, also designed by producer itself, but must adhere to the kind of requirements of GB3811-2008.

4, voltage loss

The voltage loss, AC power, peak current, in the bottom in the supply transformer bus the crane any one motor terminal voltage loss is under 15% from the rated voltage.