Impulse, Surge Testers

• Diagnose winding insulation quality while the rotor is assembled
• Detect partial discharge with high accuracy
• Understand insulation failure between motor windings
• Output voltage up to 4200 V

• Surge tester that uses response waveform quantification to diagnose motor windings
• New and improved model with higher output voltage

• Detect microscopic partial discharges obscured by noise
• Hioki original filter

• Option for the ST4030A Impulse Winding Tester
• Detect pseudo-shorts with high accuracy