HV Equipment

Substation Test Equipment


For utility and service companies, electrical maintenance testing is crucial for promoting and maintaining safety. New construction acceptance testing and existing substation maintenance testing are primary factors in prolonging the life of your electrical equipment and the ongoing reliability of a utility’s services to their customers. Routine testing of distribution, power, and instrument transformers, bushings, capacitors, circuit breakers, surge arrestors etc. can be accomplished by using Haefely / Tettex’s diverse line of test equipment. 

BROCHURE:     Portable Substation & Transformer Test Equipment

Measuring Technique Tettex Equipment
Tan Delta / Power Factor & Capacitance MIDAS 2881 / 2881G MIDAS micro 2883  
Insulation resistance 2226a Ohmmeter 5478 TΩ Meter RVM 5462
Winding resistance 2293    
Turns ratio TTR 2795 TTR 2796 2293
Demagnetization 2293    
Short circuit impedance MIDAS 2881 / 2881G 2293  
Arbitrary phase shift 2293 TTR 2796  
Excitation current MIDAS 2881 / 2881G 2293   
Heat run test 2293    
Tap changer dynamic resistance 2293    
Sweep frequency response analysis FRA 5311    
Recovery voltage measurement RVM 5462    



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