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Draw and explain bulk correction method for power factor & control.

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Bulk correction method for power factor & control: i) Here individual starter controls the capacitors located at distribution panel. ii) Centralized compensation is employed in large industrial plants where many motors are in use at a time. iii) Capacitors racks are installed at the incoming distribution panel of the industry. iv) These racks are subdivided into steps. v) Current supplied to the distribution panel is monitored by the controller for power factor. vi) Automatic control system switches subdivided rack of capacitor units in steps to maintain P.F. more than preset limit (0.95). 

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