Description

HIOKI IMPULSE WINDING TESTER ST4030A

Diagnose the Insulation Quality and Deterioration of Rotor Windings while in Assembled State via Response Waveform Quantification

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.

Key Features
• 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)

ST4030A

Note: The Discharge Detection Upgrade ST9000 is a factory option for the Impulse Winding Tester ST4030. Please specify at time of order.

option

option

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

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