Drive Motor for Forklift - MCC's or also known as Motor Control Centersare an assembly of one or more sections which contain a common power bus. These have been utilized in the vehicle industry since the 1950's, since they were used lots of electric motors. These days, they are used in a variety of industrial and commercial applications.
Motor control centers are a modern practice in factory assembly for several motor starters. This machine can consist of variable frequency drives, programmable controllers and metering. The MCC's are usually used 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 made for large motors which range from 2300V to 15000 V. These units make use of vacuum contractors for switching with separate compartments so as to accomplish power switching and control.
In locations where very dusty or corrosive processes are happening, the motor control center may be established in a separate air-conditioned room. Normally the MCC would be positioned on the factory floor close to the machines it is controlling.
A MCC has one or more vertical metallic cabinet sections with power bus and provisions for plug-in mounting of individual motor controllers. Smaller controllers could be unplugged from the cabinet to be able to complete testing or maintenance, whereas extremely large controllers could be bolted in place. Each and every motor controller has a contractor or a solid state motor controller, overload relays In order to protect the motor, circuit breaker or fuses to be able to supply short-circuit protection and a disconnecting switch to be able to isolate the motor circuit. Separate connectors allow 3-phase power in order to enter the controller. The motor is wired to terminals situated in the controller. Motor control centers supply wire ways for field control and power cables.
In a motor control center, each and every motor controller could be specified with many different choices. Some of the choices consist of: pilot lamps, separate control transformers, extra control terminal blocks, control switches, and various types of solid-state and bi-metal overload protection relays. They even have various classes of types of circuit breakers and power fuses.
There are several options regarding delivery of MCC's to the client. They can be delivered as an engineered assembly with interlocking wiring to a central control terminal panel board or programmable controller together with internal control. Conversely, they could be supplied prepared for the customer to connect all field wiring.
Motor control centers typically sit on the floor and should have a fire-resistance rating. Fire stops can be needed for cables that go through fire-rated floors and walls.
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