The correct processes to make mechanical protections of the electric motors, can be classified as totally and explosion-proof drip and splash. Drip and splash proof is the engine with all parts rotating or under tension, protected against dripping water from all directions, not allowing the direct or indirect entry of drops or particles of liquids or solid objects that spill or the engine. 7600 OLB
We can conclude that motors must be protected for the protection of professional operators, in the same way as against harmful external influences, and must meet safety requirements. An important element, called the motor housing, is to fix it in the working environment, protecting it according to the environment in which it will be installed.
The carcass is made in such a way that it joins the different modalities of mechanical protection to meet the requirements of the norms of installations and machines for which the motors will need to be destined.
It should be noted that fully enclosed machines, there is no exchange of the refrigerant medium between the outer environment and the interior of the enclosure. Depending on the characteristics requested, the motors may or may not have fans for cooling.
Synchronous generators are responsible for practically all electrical energy used in the world and in general, the composition of the generators depends on the type of machine. Synchronous generators have:
– Stator – The casing is of calendered steel and the package with its respective winding plates are on its ribs;
– Rotor – Accommodates the field winding, whose poles are made up of bundles of plates.
– Main exciter stator and rotor and rotating rectifier diodes.
– Auxiliary exciter and auxiliary coil;
– Nameplate – Contains the data with the nominal characteristics of the generator.
– Paint: background paint, applied by immersion and final paint, finished after the complete assembly of the machine, it is a varnish coat of synthetic enamel applied with a gun. X718-3A-30M
In relation to the synchronous generators, we can emphasize some characteristics for understanding: the synchronous machine is an electrical equipment, with double excitation, where in the armature or armature (usually the stator) circulate alternating balanced currents, forming a rotating field, that is, lagged currents in time travel spatially lagged coils.
The inductor or field is excited by direct current, forming an electromagnet. The two fields must rotate at the same speed so that a nonzero mean torque is obtained.