Forklift Drive Motor - Motor Control Centers or otherwise called MCC's, are an assembly of one enclosed section or more, which have a common power bus mainly containing motor control units. They have been used since the 1950's by the auto trade, as they made use of many electric motors. Nowadays, they are utilized in other industrial and commercial applications.
Motor control centers are a modern practice in factory assembly for several motor starters. This particular equipment can consist of programmable controllers, metering and variable frequency drives. The MCC's are commonly utilized in the electrical service entrance for a building. Motor control centers commonly are utilized for low voltage, 3-phase alternating current motors which range from 230 V to 600V. Medium voltage motor control centers are designed for large motors that vary from 2300 volts to 15000 volts. These units utilize vacuum contractors for switching with separate compartments to be able to achieve power control and switching.
Within factory locations and area which have dusty or corrosive processing, the MCC could be installed in climate controlled separated locations. Normally the MCC will be situated on the factory floor next 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. 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 contractor or a solid state motor controller, overload relays to protect the motor, fuses or circuit breakers to provide short-circuit protection as well as 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 located within the controller. Motor control centers supply wire ways for power cables and field control.
In a motor control center, every motor controller could be specified with a lot of various alternatives. Some of the options consist of: extra control terminal blocks, control switches, pilot lamps, separate control transformers, and numerous types of solid-state and bi-metal overload protection relays. They even comprise various classes of types of power fuses and circuit breakers.
There are a lot of alternatives concerning 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 can be supplied set for the client to connect all field wiring.
Motor control centers normally sit on the floor and must have a fire-resistance rating. Fire stops could be required for cables that go through fire-rated walls and floors.
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