Forklift Drive Motor - Motor Control Centers or likewise called MCC's, are an assembly of one enclosed section or more, which have a common power bus mainly comprising motor control units. They have been used ever since the 1950's by the auto business, for the reason that they used many electric motors. Today, they are used in different commercial and industrial applications.
Inside factory assembly for motor starter; motor control centers are fairly common method. The MCC's comprise metering, variable frequency drives and programmable controllers. The MCC's are usually seen in the electrical service entrance for a building. Motor control centers frequently are used for low voltage, 3-phase alternating current motors which vary from 230 V to 600V. Medium voltage motor control centers are made for big motors that range from 2300V to 15000 V. These units make use of vacuum contractors for switching with separate compartments so as to attain power control and switching.
In factory area and locations that have corrosive or dusty processing, the MCC can be installed in climate controlled separated locations. Typically the MCC will be situated on the factory floor adjacent to the equipment 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. In order to complete testing or maintenance, really large controllers can be bolted into place, while smaller controllers can be unplugged from the cabinet. Each and every motor controller has a contractor or a solid state motor controller, overload relays to protect the motor, fuses or circuit breakers to be able to provide short-circuit protection and a disconnecting switch so as to isolate the motor circuit. Separate connectors enable 3-phase power to enter the controller. The motor is wired to terminals situated in the controller. Motor control centers supply wire ways for power cables and field control.
Each motor controller within a motor control center can be specified with various options. These options consist of: pilot lamps, separate control transformers, extra control terminal blocks, control switches, and many types of bi-metal and solid-state overload protection relays. They likewise comprise various classes of kinds of power fuses and circuit breakers.
Regarding the delivery of motor control centers, there are many choices for the client. These can be delivered as an engineered assembly with a programmable controller along with internal control or with interlocking wiring to a central control terminal panel board. On the other hand, they could be supplied prepared for the customer to connect all field wiring.
MCC's commonly sit on floors which are required to have a fire-resistance rating. Fire stops could be required for cables which penetrate fire-rated walls and floors.
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