Результаты (
английский) 3:
[копия]Скопировано!
the electric machine is electromechanical device designed to control the electrical and неэлектрическими objects as well as for the protection of these sites in the abnormal operating modes. electric machines are: stress - low voltage (up to 1000), high voltage (more than 1000). based on current, direct current, alternating current of industrial frequency alternating current of high frequency; based on protection of the environment in the models open, closed, брызгозащищенном, водозащищенном, thermal, взрывобезопасном etc.; mode action is магнитоэлектрические, induction, electromagnetic, thermal, etc.; on principle of work, contact and non contact.contact electrical appliances have a movable contact part, and the impact on the controlled circuit by circuit or fix bounce of the contact. the machines can be automated and неавтоматическими. automatic contact devices, to come into effect from the treatment of the chain or the car. non automatic contact devices are devices the application of which only depends on the operator control is remotely or directly. non contact electrical appliances do not have коммутирующих contacts; carry out management by changing their electrical parameters (inductance, capacitance, resistance).
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