Transformer diagnostics was difficult before because technicians had to disassemble the case and take the core out of the tank. Nowadays, Sweep Frequency Response Analyzers allow technicians to test transformers for winding deformation or short circuits without disassembling the transformer. This helps save time on maintenance checks and reduces the need for additional manpower.
If you are thinking of upgrading your electrical test equipment, consider getting a Doble M5400 SFRA. This tester helps in early fault identification on transformers so you can immediately recondition it. It detects partial winding collapse, faulty clamping structures, defective core grounds and core movement. It has a wide frequency response of 10 Hertz up to 25 MegaHertz and a sampling rate of 100MS/s. This Doble test set has an auto-scale function which gives an accuracy of ± 1 dB and a dynamic range of 80 dB. Its point spacing of 1.2% Logarithmic ensures that even the slightest change in the transformer’s components will be detected. Its output is short circuit protected to prevent damage in case the test leads are connected in the wrong way.
Protec Equipment Resources offers the Doble M5400 SFRA for rent. Call us at 1-866-352-5550 for a rental quote on the M5400.