Power Restoration

Power Restoration Process Restores Power to the Largest Number of Customers First

During a major outage, Jackson EMC works to restore power to the most people in the shortest amount of time.

When outages are occurring throughout the Jackson EMC system, the first priority is restoring the lines that will return service to the largest number of customers with each repair. This means that workers usually try to restore a main line before restoring power to individual customers.

There are breakers and switches throughout the system that are coordinated to work together. When a single service line has an interruption, that switch prevents the main lines from going "out." If the interruption is on the main line from the substation, all the lines feeding from that line go out.


Step 1:
Transmission lines rarely fail, but severe weather like ice storms, hurricanes and tornadoes can damage them. One high-voltage transmission line may serve thousands, so if there is damage, it gets attention first.
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Step 2:
Local distribution substations are checked first when major outages occur. There could be failure in the transmission system supplying the substation; however, if the problem can be corrected at the substation, power may be restored to a large number of people.
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Step 3:
Next, main distribution supply lines are checked if the problem isn't at the substation. Substation lines supply towns, housing developments or a group of customers. When power is restored at this level, all customers served by this supply line could have power restored if there are no problems farther down the line.
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Step 4:
Supply lines carry power to utility poles or underground transformers outside houses or other buildings. Line crews repair the remaining outages based on restoring service to the greatest number of customers.
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Step 5:
Occasionally, your power may be out when your neighbor has power. This is sometimes caused by damage to the service line between your house and the transformer on the nearby pole.
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