Diagnose the Insulation Quality and Deterioration of Rotor Windings while in Assembled State via Response Waveform Quantification
IMPULSE WINDING TESTER ST4030A
The ST4030A is an impulse winding tester, or surge tester, that combines the functions of both a resistance meter and insulation-withstand testing required for electric motor winding manufacturers to improve quality. Meet the needs of more reliable motor windings in light of the increasing use of electric vehicles and self-driving technology.
- Identify previously undetectable defects
- Detect waveforms with high precision (200 MHz high speed sampling × high 12-bit resolution)
- Identify single-fault turns via quantification of response waveforms into LC and RC values
- Diagnose defective insulation (pseudo-shorts) between motor windings by testing for microscopic partial discharges hidden in noise (option)
Model No. (Order Code)
Note: The Discharge Detection Upgrade ST9000 is a factory option for the Impulse Winding Tester ST4030. Please specify at time of order.
How to Use the Hioki Impulse Winding Tester ST4030A
The ST4030A detects the existence of layer shorts between coil windings, defects that are found in motor inductors. By using a master waveform taken from a reference coil after applying an impulse voltage, and comparing it to the measured waveform across a specific interval of the coil under test, the resulting area difference can help determine pass or fail easily and accurately. In addition, quantification of response waveforms, a new method developed by Hioki, lets you detect even single-turn faults by using a pass/fail distribution plot. Watch this video to learn how to easily make settings and begin testing right away.
Basic specifications (Accuracy guaranteed for 1 year, Post-adjustment accuracy guaranteed for 1 year)
|Measurement items||• Quantification (LC value, RC value) of the response waveform obtained when impulse voltage is applied, pass / fail judgment|
• Waveform judgment using AREA value, Flutter, Laplacian etc.
• Equipped with dielectric breakdown voltage test function
|Applied voltage||100 V to 4200 V (Setting resolution: 10 V steps)|
Maximum applied energy: approx. 88 mJ
|Testable inductance range||10 μH to 100 mH|
|Sampling||200 M / 100 M / 50 M / 20 M / 10 MHz, Resolution: 12 bits, Number of data: 1001 to 800 points (1000 point steps)|
|Voltage detection accuracy||[DC accuracy] ± 5% of setting, [AC band] 100 kHz: ± 1 dB|
|Determination method||LC · RC value judgment, waveform judgment, discharge judgment (when incorporating the ST9000)|
|Number of test condition tables||255 (test condition setting, judgment condition setting, master waveform)|
|Test time||About 60 ms (3000 V, 1 pulse, reference value at decision OFF)|
|Display||8.4-inch SVGA color TFT liquid crystal (800 × 600 dots), touch panel|
|Interface||Standard: EXT.I/O, USB host (memory), USB device (communication), LAN|
Optional: RS-232C (Z3001), GP-IB (Z3000)
|Power supply||100 V to 240 V AC, 50/60 Hz, 80 VA max.|
|Dimensions and mass||215 mm (8.46 in)W × 200 mm (7.87 in)H × 348 mm (13.7 in)D, 6.7 kg (236.3 oz)|
|Accessories||Power cord ×1, Instruction Manual ×1, Application disc ×1, Usage notes ×1|