Forklift Drive Motor - MCC's or likewise known as Motor Control Centersare an assembly of one or more sections that contain a common power bus. These have been utilized in the vehicle trade ever since the 1950's, in view of the fact that they were made use of lots of electric motors. Nowadays, they are utilized in other commercial and industrial applications.
Motor control centers are a modern practice in factory assembly for several motor starters. This machinery can consist of metering, variable frequency drives and programmable controllers. The MCC's are usually seen in the electrical service entrance for a building. Motor control centers often are used for low voltage, 3-phase alternating current motors that range from 230 V to 600V. Medium voltage motor control centers are designed for large motors that range from 2300V to 15000 V. These units make use of vacuum contractors for switching with separate compartments to be able to attain power switching and control.
In locations where extremely corrosive or dusty processes are happening, the motor control center could be installed in a separate air-conditioned room. Normally the MCC will be located on the factory floor close 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 can be unplugged from the cabinet to be able to complete maintenance or testing, whereas really 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 so as to provide short-circuit protection and a disconnecting switch to be able to isolate the motor circuit. Separate connectors enable 3-phase power so as 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.
Each and every motor controller within a motor control center can be specified with different alternatives. These options comprise: control switches, pilot lamps, separate control transformers, extra control terminal blocks, as well as various types of bi-metal and solid-state overload protection relays. They even comprise different classes of kinds of circuit breakers and power fuses.
Regarding the delivery of motor control centers, there are various choices for the client. These could be delivered as an engineered assembly with a programmable controller together with internal control or with interlocking wiring to a central control terminal panel board. Conversely, they can be provided ready for the customer to connect all field wiring.
MCC's generally sit on floors which must have a fire-resistance rating. Fire stops can be necessary for cables that go through fire-rated walls and floors.
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