Corona Discharge Checker MK-720 Rental
It is not affected by noise as it only detects frequencies specific to discharge.
The Corona Discharge Checker MK-720 detects only the specific frequencies of discharge, making it unaffected by noise. It can detect insulation deterioration in cables, cable terminals, transformers, and more. Due to ultrasonic discharge sound detection, it allows for non-contact measurement while the equipment is live. When corona discharge occurs due to insulation deterioration in AC power supply equipment, ultrasonic waves are generated across a wide bandwidth. These ultrasonic waves vary in strength in sync with the power supply phase, so when the detected sound is demodulated and frequency analyzed, the component at twice the power frequency appears prominently. This device can detect discharge without being influenced by sounds other than discharge by detecting the strength of this twice the power frequency component. For more details, please contact us.
basic information
Product Code: 30022 *Please provide this number when making inquiries for a smoother process. 【Features】 ○ Non-contact measurement possible in live wire state due to ultrasonic discharge sound detection ○ Equipped with frequency analysis function → Detects only the specific frequencies of discharge, unaffected by noise ○ Can detect insulation deterioration of cables, cable terminals, transformers, etc. ○ Sharp capture with a ±8° directivity → Easy to identify discharge locations with the included laser pointer ○ Measurement data (component ratio, waveform, FFT data) can be recorded ○ Data transfer possible by connecting a USB cable ○ Discharge sound can be heard through earphones, etc. ● For more details, please contact us.
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