Magnetic controllers. Магнитные контроллеры (англ-рус)

1. Magnetic controllers are self-contained unitized devices which ensure a definite switching sequence in power circuit when the corresponding commands are fed to the control circuits. Besides, whenever necessary, magnetic controllers can be used to effect a definite switching sequence in power circuit as a function of time or control parameters. Controllers provide the means for starting, speed control and stopping of motors of various types.

2. Magnetic controllers are recommended for use with adjustable-speed and constant-speed motors on application requiring a large number of startings per hour, heavy starting duties and where stringent requirements have to be met as regards stoppage reliability.

3. Controllers for controlling the cage motors of deck machinery are available in splash proof design version.

4. Controllers are available in a large number of design versions to suit a-c electric drives encountered in marine service.

5. Various modifications of controllers differing in circuit arrangement are built up of standard units used in typical arrangements. Magnetic controllers are selected in accordance with the rated current. The maximum load current under the steady-state conditions must not exceed 110% of the rated current and the time during which the rated starting current of the motor in any winding must not exceed the indicated value.