We stand ready to help any customer in need. Our People First philosophy led us to suspend disconnects while our community bands together during this challenging time. If you are experiencing financial hardship, we urge you to contact us for help. Call us at 210-353-2222 or online at cpsenergy.com/assistance.

For the safety of our customers and employees, face coverings are highly suggested, but not required.  Please let us know if you need assistance.  Our modified customer service center hours are 10:30 a.m. to 5:00 p.m. Monday – Friday.  

 

Commercial Power Quality FAQs

 

What causes power quality problems?

  • Most causes can be divided into internal and external causes.
  • Potential culprits may include large equipment start-up or shutdown, improper wiring and grounding, overloaded circuits or harmonics.
  • The most common cause is a lightning strike; other possibilities include equipment failure, vehicle accidents, weather conditions, neighboring business, and even normal operation of utility equipment.

What kind of equipment is vulnerable?

  • Most electrical equipment is affected by variations in powering and grounding. High-tech equipment, such as computer networks and phone systems, are sensitive and may be susceptible to damage.

How is a power quality problem diagnosed?

  • Sophisticated monitoring and testing are usually required to isolate the specific type of disturbance and pinpoint the cause. A thorough power quality investigation might include:
    • On-site testing
    • Grounding studies
    • Infrared Scans
    • Wiring verification
    • Identification of load characteristics