Forklift Drive Motor - MCC's or likewise known as Motor Control Centersare an assembly of one section or more which have a common power bus. These have been used in the auto business since the 1950's, as they were made use of a large number of electric motors. Nowadays, they are used in different commercial and industrial applications.
In factory assembly for motor starter; motor control centers are fairly common practice. The MCC's include variable frequency drives, programmable controllers and metering. The MCC's are commonly seen in the electrical service entrance for a building. Motor control centers commonly are used for low voltage, 3-phase alternating current motors that vary from 230 V to 600V. Medium voltage motor control centers are intended for large motors that vary from 2300 volts to 15000 volts. These units utilize vacuum contractors for switching with separate compartments so as to accomplish power control and switching.
In places where really dusty or corrosive processes are taking place, the motor control center could be installed in a separate air-conditioned room. Typically the MCC will be positioned on the factory floor adjacent to the machines it is controlling.
For plug-in mounting of individual motor controls, A motor control center has one or more vertical metal cabinet sections with power bus. To be able to complete testing or maintenance, really big controllers can be bolted into place, whereas smaller controllers could be unplugged from the cabinet. Each and every motor controller has a solid state motor controller or a contractor, overload relays to be able to protect the motor, circuit breaker or fuses to provide short-circuit protection and a disconnecting switch to be able to isolate the motor circuit. Separate connectors enable 3-phase power to be able to enter the controller. The motor is wired to terminals situated inside the controller. Motor control centers provide wire ways for field control and power cables.
Within a motor control center, each and every motor controller can be specified with numerous various options. Some of the choices comprise: extra control terminal blocks, control switches, pilot lamps, separate control transformers, and many kinds of solid-state and bi-metal overload protection relays. They even have various classes of kinds of circuit breakers and power fuses.
There are many choices concerning delivery of MCC's to the client. They could be delivered as an engineered assembly with interlocking wiring to a central control terminal panel board or programmable controller together with internal control. On the other hand, they can be supplied prepared for the client to connect all field wiring.
Motor control centers usually sit on the floor and should have a fire-resistance rating. Fire stops can be necessary for cables which penetrate fire-rated floors and walls.
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