VLF AC Hipot Test Set VLF 시험기로 30kv, 50kV, 60kV, 80kV 출력GDVLF-80 General Information VLF means ‘Very Low Frequency’ and 0.1Hz to 0.02Hz is considered to be very low frequency,used as a AC output tester. Although the frequency is very low, it is still an alternating current with polarity reversals every half cycle. At 0.1 Hz output, rather than 60Hz, it takes 600 times less current and power to apply an AC voltage to .. 더보기 GDJB-1200 Protection Relay Tester GDJB-1200 Protection Relay Tester General Information: Relay Protection microcomputer test device play a key role in operating electricity power systems reliably and safely.It is the testing device used in professional field of microcomputer protection,relay protection,excitation measurement,fault recorder.Features:Embedded host machine, equipped with big programmed CPLD(Complex Programmable Log.. 더보기 GDBR-P Transformer Power Tester GDBR-P Transformer Power Tester Features Measure transformer No-load current, No-load loss, short circuit voltage, short circuit loss and capacity.Three meters testing methods.When making three phase transformer No-load, load test, the instrument will judge if the wiring is correct automatically, and shows three phase voltage, current vector diagram.Finish load test under 1600kVA below distribut.. 더보기 이전 1 2 3 4 5 ··· 8 다음
