Officials with the City of Houston’s Mayor’s Office released documents showing a preliminary cause to last November’s power outage at the East Houston Water Purification Plant.
RELATED: Report shows aging Houston water plants require multimillion-dollar upgrades, replacements
The city had Saber Power Services conduct an investigation into the outage. This is the same company that has performed inspections of the water plant’s electrical systems. A report released by the mayor’s office to KPRC 2 Investigates reads a fault in a high-voltage cable caused circuit breakers to trip and shut off power to the city-owned transformer powering the facility. The report further reads the electrical system was not set up to reroute power around a problem.
“Due to the design of these switchgear configurations, the system prevents switching load from one bus to the other without taking a power outage,” the report reads. Saber’s report further notes, “This is not economical for performing electrical maintenance in order to prevent incidents like this one from happening. A properly designed system will allow any electrical circuit to be removed from service that has a parallel source without ever losing power to the load, and will also restore service automatically from another source if power is lost.”
Saber’s report did say that the system does have most of the components needed to make this upgrade with a “major reconstruction.”
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