Forklift Drive Motor - MCC's or Motor Control Centersare an assembly of one or more sections that include a common power bus. These have been used in the auto trade since the 1950's, in view of the fact that they were utilized a lot of 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 include programmable controllers, metering and variable frequency drives. The MCC's are usually found in the electrical service entrance for a building. Motor control centers often are utilized for low voltage, 3-phase alternating current motors which range from 230 V to 600V. Medium voltage motor control centers are made for big motors that vary from 2300 volts to 15000 volts. These units use vacuum contractors for switching with separate compartments so as to attain power control and switching.
Inside factory locations and area which have dusty or corrosive processing, the MCC can be installed in climate controlled separated locations. Typically the MCC would be situated on the factory floor adjacent 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. To complete maintenance or testing, extremely large controllers could be bolted into place, whereas smaller controllers can be unplugged from the cabinet. Each motor controller consists of a contractor or a solid state motor controller, overload relays so as to protect the motor, circuit breaker or fuses 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 enter the controller. The motor is wired to terminals located in the controller. Motor control centers provide wire ways for power cables and field control.
Inside a motor control center, each and every motor controller can be specified with several various options. Some of the options comprise: extra control terminal blocks, control switches, pilot lamps, separate control transformers, and many types of solid-state and bi-metal overload protection relays. They even have various classes of types of circuit breakers and power fuses.
There are various choices concerning delivery of MCC's to the customer. They could be delivered as an engineered assembly with interlocking wiring to a central control terminal panel board or programmable controller together with internal control. On the other hand, they can be provided prepared for the client to connect all field wiring.
MCC's usually sit on floors that must have a fire-resistance rating. Fire stops can be necessary for cables which go through fire-rated floors and walls.
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