Voltage Improvement By Using Capacitor Bank

Pl. specify rating of motor.

Any way, as voltage is 440 V, assuming motor rating to be less then 200 KW.

Series connection of capacitor can only compensate for inductive voltage drop in lines which may not be substantial.

Instead think of reactive power compensation and reducing voltage drop in lines.

Please:

1. turn off Caps Lock
2. Reduce the motor overload protective device(s) trip setting(s) immediately to the full load current of the motor at 380V, which may be stated on its rating plate or may be obtained from the motor manufacturer, before an overload causes breakdown, process revenue interruption costs, personal injury or fire at the facility. If the motor is operating beyond its full-load current, is it adequately sized for the job at hand [rhetorical question]?

A capacitor bank in series with the transmission line cannot increase the line voltage.

An increase in the supply voltage can be achieved in several ways:

1. Altering the tapping point of the local distribution transformer to operate at a higher line voltage.
2. Installing an additional transformer to step-up the line voltage to the required level.
3. Deriving power from an alternative source that is running at a higher voltage.
4. If serious consideration is being given to capacitor banks in parallel with the supply so as to operate the feeder cable at a higher field-end voltage (though it is usually done to lower feeder cable losses and reduce tariff charges on the basis of presented power factor to the local utility supply company), then one of the possibilities is that the supply cable is undersized and requires upgrading and/or replacement.

In all cases, consult a qualified Electrical Engineer locally, who will inspect the facility and advise on the most appropriate course of action in this case.

guest; sound like you have 50 HZ! you could try boost transformers. perry