Visa Electrofab

Haveli, Pune, Maharashtra

A motor control center (MCC) is an assembly of one or more enclosed sections having a common power bus and principally containing motor control units. Motor control centers are in modern practice a factory assembly of several motor starters. A motor control center can include variable frequency drives, programmable controllers, and metering and may also be the electrical service entrance for the building. A motor control center consists of one or more vertical metal cabinet sections with power bus and provision for plug-in mounting of individual motor controllers. Each motor controller contains a contactor or a solid-state motor controller, overload relays to protect the motor, fuses or a circuit breaker to provide short-circuit protection, and a disconnecting switch to isolate the motor circuit.

APFC or Automatic Power Factor Control Panels are mainly used for the improvement of Power Factor. It has a microcontroller based programmable controller which switches the capacitor banks of suitable capacity automatically in multiple stages by directly reading the reactive load (RKVA) which works in the principle of VAR sensing tends to maintain the PF to 0.99 Lag. The capacitor banks may be selected in number of stages according to the load pattern. The power factor can be maintained by installing Automatic Power Factor Control Panel (APFC Panel)

Auto mains failure (AMF) Panels is meant for controlling DG START / STOP sequence in accordance to the availability of utility power supply. It has a relay sensor that detects power failure & shift the load to a generator. If power being resumed same relay sensor detects is & shift the load back to the supply. AMF control system provides continuous flow of power supply to the load in case of power failure & fluctuation

Synchronizing Panel works between two or more different power sources like DG sets to manage power supply. It is used where the power is cut off or failure. DG synchronization panel is required to paralleling of 2 or more DG's it may be as per the load dependent .one DG will be ON as per the master and other will sync with the frequency , voltage etc matches with master DG, this is required to share the load.

PLC Panels are ruggedized with hardware and software specifically designed to perform industrial control operations.A PLC consists of two basic sections:

• The CPU (central processing unit) controls all PLC activity and can further be broken down into processor and memory system components.
• The input/output interface system is physically connected to field devices such as switches, sensors, lights, and motors, and provides the interface between the CPU and the field devices (inputs and outputs).

PLCs are used to control machines or processes that are sequential in nature and can control continuous processes that use analog I/O.