ST-15A Utility Frequency Spark Tester Insulation Detection

Utility Frequency Spark Tester Insulation Detection ST-15A

We manufacture Utility Frequency Spark Testers for extrusion and rewind lines to check for defects in cable insulation. ST-15A Utility Frequency Alternating Current AC Spark Tester is a special-purpose test instrument to detect fault of insulation on wire and cable, it is integrated with the technology of solid-state AC voltage regulation and MCU control, the instrument features steady voltage output, high sensitivity of insulation fault detection, versatility, user-friendly, safety and reliability, new construction and beautiful appearance.

How the tester work?

Cable passes through in a high-voltage bead chain electrode in the spark tester, and any insulation fault causes a spark from this electrode to the ground via cable core. Any spark will be detected by spark tester electronics and marked as a fault. The calbels is monitored by spark tester at the cable production line, any fault in cable insulation will be marked and an alarm will be generated, the mark can be found and the fault will be fixed.

Technical Parameters (Specifications)

Model No. ST-15A ST-25A
Voltage Range 1 / 15 KV 2 / 25 KV
Test Frequency 50 ~ 60 Hz (Utility Frequency) 50 ~ 60 Hz (Utility Frequency)
Accuracy 5% Full scale 5% Full scale
Detection sensitivity 0.6 mA 0.6 mA
Wave Form Sine Wave A.C.RMS Sine Wave A.C.RMS
Wire Size 30 mm (max) 55 mm (max)
Electrode Bead Chain Bead Chain
Max Wire Speed 300m / min 350m / min
H. V. Meter Digital LED Digital LED
Fault Counter 3 digit LCD Self Powered 3 digit LCD Self Powered
Power Supply 220V AC 50~60Hz 220V AC 50~60Hz
Interlock By potential free change over By potential free change over
Safety Door interlocking switch Off the HV Door interlocking switch Off the HV

Operating condition

Operating Temperature 0 ~ 45 C
power consumption 1000 VA
Relative humidity Less than 90% without condensed water

Feature and Application

Feature
Electronic switching based unique design.

Sine wave, low power circuit.

Compatible with International standards.

User-friendly display and notice.

Safety for operators, interlock switch and discharge rod for HV circuit.

Insulation Detection
Online Extrusion Insulation Testing.

Online Rewinding & Testing Machine.

Online Coiling Machine.

Inspection Machine.

Used for Power Cable, Control Cable, Telephone Cable, LAN Cable, RF Cable, Automotive Wire, Building Wire.

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