10. Measurements and testing commissioning of high-voltage transformers(CT, VT)

Type of test

• Measuring ratio transformation of current transformers (CTs)
• Measurement of the ratio transformation of the TPs’ BUSHING TCs
• Checking of the polarity of the secondary CTs
• Measurement of the resistance of the secondary windings CTs
• Measurement of the resistance of the secondary circuits CTs
• Measurement of the secondary load CTs
• Measurement of the magnetization curve of CTs and angled point
• Measurement of the ratio transformation of CT Rogowski
• Insulation measurement of the CTs
• Measurement of the ratio transformation voltage-transformers (VTS )
• Check the polarity of the secondary of VTs
• Measurement of the resistance of the secondary windings VTs
• Measurement of the resistance of the secondary circuits VTs
• Measurement of the secondary charge of VTs
• Insulation measurement of the VTs