Imbalanced currents:
Imbalanced currents often arise when single-phase loads are employed unevenly on a 3-phase distribution system. When the imbalance approaches 10%, the following problems may surface in an electrical distribution system:

• Negative Voltage Sequence.
• Circulating currents.
• Increased current in neutral conductor.
• Increased Neutral-to-Ground voltage.
• Overheating of motors (insulation breakdown).
• Reduced motor efficiency.
• Motor bearings failures.
• Increased maintenance of equipment and machinery.
• Wasted energy / higher electric bills - KWD and KWH.
• Wasted investment and operating capital.

The Hershey Solution: The standard Hershey System will balance the 3 phases electrically based upon X/R and the impedance of the system, Z, in order to ensure that this 10% limit is not exceeded throughout the electrical networks. In addition, the standard Hershey System will reduce the current across all 3 phases by 30-40% thereby reducing the line losses (I2Z) and accounting for a portion of the guaranteed energy savings.

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