Specifications VLF-28CM 28kV @ 0.4mF VLF-4022CM 40kV @ 5.5mF VLF-50CM 50kV @ 50mF VLF-6022CM 60kV @ 5.5mF VLF-65CMF 65kV @ 22mF VLF-90CMF 90kV @ 2.75mF VLF-12011CMF 120kV @ 5.5mF VLF-200CMF 200kV @ 3.75mF VT33 VLF Thumper Downloads VLF Brochure VLF Data Logger Brochure VLF FAQ HVI Advantages Why Buy HVI VLF How To Select A VLF Model VLF Testing Voltage & Time T&D World Article CH Energy Article Tan Delta Brochure Tan Delta FAQ VLF & TD Hardware Req.