Drive Motor for Forklift - MCC's or likewise known as Motor Control Centersare an assembly of one or more sections which have a common power bus. These have been utilized in the auto business ever since the 1950's, because they were used a lot of electric motors. Now, they are used in other industrial and commercial applications.
Inside factory assembly for motor starter; motor control centers are somewhat common method. The MCC's comprise programmable controllers, metering and variable frequency drives. The MCC's are normally found 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 made 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.
Inside factory locations and area which have dusty or corrosive processing, the MCC could be installed in climate controlled separated locations. Typically the MCC would be situated on the factory floor adjacent to the machines 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, while very large controllers can be bolted in place. Every motor controller has a solid state motor controller or a contractor, overload relays to protect the motor, circuit breaker or fuses to supply short-circuit protection and a disconnecting switch so as to isolate the motor circuit. Separate connectors enable 3-phase power in order to enter the controller. The motor is wired to terminals located in the controller. Motor control centers provide wire ways for field control and power cables.
In a motor control center, each and every motor controller could be specified with lots of different alternatives. Some of the options consist of: pilot lamps, separate control transformers, extra control terminal blocks, control switches, and various types of bi-metal and solid-state overload protection relays. They also have different classes of kinds of circuit breakers and power fuses.
There are lots of 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 along with internal control. Conversely, they could be supplied set for the customer to connect all field wiring.
MCC's usually sit on floors which must have a fire-resistance rating. Fire stops can be necessary for cables which penetrate fire-rated walls and floors.
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