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 vehicle business, since they used a lot of electric motors. Nowadays, they are utilized in other industrial and commercial applications.
Motor control centers are a modern method in factory assembly for some motor starters. This particular equipment can comprise metering, variable frequency drives and programmable controllers. The MCC's are normally used in the electrical service entrance for a building. Motor control centers commonly are used for low voltage, 3-phase alternating current motors which range from 230 V to 600V. Medium voltage motor control centers are intended for big motors which range from 2300 volts to 15000 volts. These units use vacuum contractors for switching with separate compartments to be able to achieve power control and switching.
In areas where really corrosive or dusty processes are happening, the motor control center could be installed in a separate air-conditioned room. Usually the MCC would be positioned on the factory floor close to the machinery 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. So as to complete testing or maintenance, really large controllers can be bolted into place, whereas smaller controllers can be unplugged from the cabinet. Each motor controller has a solid state motor controller or a contractor, overload relays so as to protect the motor, circuit breaker or fuses in order to provide short-circuit protection and a disconnecting switch in order to isolate the motor circuit. Separate connectors allow 3-phase power to enter the controller. The motor is wired to terminals positioned inside the controller. Motor control centers provide wire ways for power cables and field control.
In a motor control center, every motor controller could be specified with lots of different options. Some of the choices consist of: pilot lamps, separate control transformers, extra control terminal blocks, control switches, and many kinds of bi-metal and solid-state overload protection relays. They likewise have various classes of types of circuit breakers and power fuses.
Regarding the delivery of motor control centers, there are various choices for the consumer. These could 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. Conversely, they could be supplied prepared for the client to connect all field wiring.
MCC's generally sit on floors which should have a fire-resistance rating. Fire stops can be needed for cables which go through fire-rated floors and walls.
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