The KF-6901 multifunctional partial discharge detector is a widely used non-invasive detection instrument for partial discharge in medium and high voltage switchgear. It has the characteristics of small size, light weight, simple operation, and powerful functions. This instrument is suitable for conducting live and rapid inspections of partial discharge in switchgear. It has both TEV and ultrasonic detection methods, which can better determine whether there is partial discharge in the switchgear. The detection results can be quantitatively displayed, stored, and reported for upload.

When partial discharge occurs in the medium and high voltage switchgear, transient ground voltage signals ranging from several millivolts to several volts will be generated on the surface of the metal cabinet, and ultrasonic signals will be generated at the same time. The multifunctional partial discharge detector can collect, analyze, and provide detection data such as the highest TEV amplitude level, weekly pulse count, and severity level to determine whether there is partial discharge in the switchgear, providing reliable basis for maintenance.

Functional features:

☆ Easy to operate, capable of quickly conducting inspections on partial discharge conditions in substations.

☆ Combined with parabolic waveform concentrator, it can detect partial discharge at high altitude or long distance.

☆ Combined with external ultrasonic sensors, it can detect partial discharge signals of switchgear from multiple angles.

☆ It can provide single or continuous detection modes, providing data such as the highest amplitude level, weekly pulse count, severity level, pulse count within 2 seconds, number of pulses per cycle, short-term severity, etc.

Quantitative display, storage, and report upload of test results.

Scope of application:

☆ Suitable for detecting various discharges in electrical equipment such as medium and high voltage switchgear (3-66KV).

TECHNICAL INDEX

☆TEV

☆ Sensor: Capacitive

☆ Measurement range: 0~60dBmV

☆ Resolution: 1dB

Measurement accuracy: ± 1dB

☆ Maximum number of pulses per week: 655

☆ Minimum pulse frequency: 10Hz

☆ Ultrasonic waves

☆ Measurement range:- 7dBμV~68dBμV

☆ Resolution: 1dB

Measurement accuracy: ± 1dB

☆ Sensor sensitivity:- 65dB (0dB=1 vol/μ bar effective value SPL)

☆ Sensor center frequency: 40kHz

☆ Sensor diameter: 16mm

☆ Heterodyne frequency: 38.4KHz

☆ Hardware parameters

☆ Shell: Monochrome injection molded plastic box

☆ Indicator light: Color backlit LCD

Charging indicator LED

☆ Control: Film keyboard

☆ Connector: 2.1mm Low Voltage DC Charger Input

3.5mm stereo headphone jack external ultrasonic sensor input

☆ Head mounted headphones: minimum 8 ohms

☆ Environment

☆ Working temperature: 0 ℃~55 ℃;

☆ Humidity: 0-90% non condensing

☆ Protection level: 54

☆ Power supply

☆ Internal battery: 3.7V 3.6Ah Lithium ion

Typical working hours: approximately 5 hours

☆ Battery hold: Automatically shuts off when low battery voltage is detected or the device has been running for ten minutes