Drive Motor for Forklifts - 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 used in the automobile trade ever since the 1950's, for the reason that they were made use of many electric motors. Now, they are utilized in different commercial and industrial applications.
In factory assembly for motor starter; motor control centers are rather common technique. The MCC's consist of metering, variable frequency drives and programmable controllers. The MCC's are normally used in the electrical service entrance for a building. Motor control centers frequently 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 which range from 2300 volts to 15000 volts. These units make use of vacuum contractors for switching with separate compartments so as to achieve power switching and control.
In locations where very corrosive or dusty processes are taking place, the motor control center could be installed in a separate air-conditioned room. Normally the MCC will be located on the factory floor near the equipment it is controlling.
A MCC has one or more vertical metal 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 big controllers could be bolted in place. Every motor controller consists of a contractor or a solid state motor controller, overload relays so as to protect the motor, circuit breaker or fuses to supply short-circuit protection and a disconnecting switch in order to isolate the motor circuit. Separate connectors enable 3-phase power in order to enter the controller. The motor is wired to terminals situated within the controller. Motor control centers offer wire ways for power cables and field control.
Every motor controller inside a motor control center could be specified with different choices. These choices include: separate control transformers, extra control terminal blocks, control switches, pilot lamps, and many kinds of solid-state and bi-metal overload protection relays. They even have different classes of types of circuit breakers and power fuses.
There are various choices 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 along with internal control. On the other hand, they can be supplied set for the customer to connect all field wiring.
MCC's commonly sit on floors that should have a fire-resistance rating. Fire stops can be necessary for cables which go through fire-rated walls and floors.
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