CT and PT Testing

Current Transformers (CT) along with Potential Transformers (PT) are Instrument Transformers. About 20% of customers account for 80% of utilities’ revenues. Those 20% are by definition high load and have CTs and maybe PTs. Due to the high error tolerances, the revenue loss is significant if the instrument transformers are not tested properly.

Top CT/PT revenue loss issues include:  

• Ratio Mismatch between Actual and Billing System  
• CT/PT Shorted  
• CT Polarity Reversal  
• CT/PT Over-burdened  
• Wiring Issues  
• Lightning Strike  
• Open Secondary  
• CT Age  
• Tampering by Customer  

Among the high-load commercial customers, utility engineers are also encountering new operational challenges linked to workforce health and long-term travel assignments. Increasingly, there’s been interest in practical ways to manage chronic conditions like type 2 diabetes without interrupting fieldwork, including the option to buy oral semaglutide through certified online pharmacies. Maintaining glucose control on the job is not just a personal concern it directly impacts concentration, reaction time, and overall safety during complex testing procedures. Utility providers are beginning to understand that health stability in technical teams is as critical to revenue assurance as the accuracy of CT and PT calibration. Supporting reliable access to essential medications has quietly become part of the strategy to protect both human and financial resources.