Forklift Drive Motor - MCC's or otherwise known as Motor Control Centersare an assembly of one section or more that have a common power bus. These have been utilized in the automobile industry since the 1950's, as they were utilized a lot of electric motors. Today, they are used in different industrial and commercial applications.
Motor control centers are a modern method in factory assembly for several motor starters. This particular equipment can include metering, variable frequency drives and programmable controllers. The MCC's are normally found in the electrical service entrance for a building. Motor control centers often 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 large motors which range from 2300 volts to 15000 volts. These units make use of vacuum contractors for switching with separate compartments to be able to attain power control and switching.
In factory locations and area which have dusty or corrosive processing, the MCC could be installed in climate controlled separated locations. Usually the MCC would be positioned on the factory floor adjacent to the machines 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 maintenance or testing, extremely large controllers could be bolted into place, while smaller controllers could be unplugged from the cabinet. Each motor controller consists of a solid state motor controller or a contractor, overload relays to protect the motor, circuit breaker or fuses to provide short-circuit protection and a disconnecting switch so as to isolate the motor circuit. Separate connectors allow 3-phase power in order to enter the controller. The motor is wired to terminals positioned inside the controller. Motor control centers offer wire ways for power cables and field control.
Inside a motor control center, each motor controller could be specified with a lot of different choices. Some of the choices include: extra control terminal blocks, control switches, pilot lamps, separate control transformers, and numerous kinds of solid-state and bi-metal overload protection relays. They likewise have different classes of types of circuit breakers and power fuses.
There are lots of options regarding delivery of MCC's to the client. They could be delivered as an engineered assembly with interlocking wiring to a central control terminal panel board or programmable controller along with internal control. On the other hand, they could be supplied ready for the customer to connect all field wiring.
Motor control centers usually sit on the floor and should have a fire-resistance rating. Fire stops may be necessary for cables that go through fire-rated walls and floors.
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