Handheld partial discharge tester is a detection device for diagnosing power line faults and hidden troubles by collecting abnormal ultrasonic signal in power lines and then through software analysis. It can judge hidden fault position and fault type without power cut. The device collect abnormal ultrasonic signal by ultrasonic detector (ultrasonic sensor) , then transmit the signals to the host, diagnose the fault and hidden trouble type and severity level, and convert to audible sound signal and the output waveform. It can help inspectors accurately find out faults and hidden dangers, prevent malignant faults happening, avoid unnecessary power cut, increase the reliability of power supply, Improve the efficiency of inspection personnel, and reduce the labor intensity of inspection personnel.

Technical index：

System

WINCE6.0

CPU

Main frequency of 533MHz

Memory

RAM of 256MB DDR2， 1GB NandFlash

Screen

TFT true color touch screen of 4.3” ，resolution of 480 * 272

Interface

SD memory card，USB，serial port，earphones

SD memory card

TF card of more than 8G

Camera

3 mega-pixel high definition camera

Accessories

GPS，temperature /humidity measurement device，high brightness laser pointer

Storage function

GPS coordinate，time/date，temperature/humidity

Frequency range

20—150kHz

Sensor

40kHz x 1Ea

Working condition

-25℃ ~ 70℃

Relative humidity

0 - 95%

Charger specification

Input ：100-240V， 50/60Hz

Output ：voltage of 20V, current of 3.25A

Power supply

Battery power：lithium battery

Working hours：about 8 hours

Battery protection：LCD backlight will go dark, when there

is no operation within 5 minutes. The instrument will

automatically shutdown, when there is no operation within 20 minutes. When the battery power is less than 5%, system will beep hinting users to save data timely, then users need power it off and recharge.

Feature：

●Portable design, small size, light weight, and easy to carry , so that one person can operate.

●High brightness laser transmitter can realize fault location.

●3 mega-pixel high-definition camera can easily focus detection point of failure and take photos of tower identification and faulty equipment.

●Convert the abnormal ultrasonic signals detected by the instrument to audible sine signal and intuitive waveform, from which inspection personnel can clearly identify the discharge intensity.

●Embedded GPS receiver automatically stores the coordinate data and provides GPS navigation, which convenient for query and save detection path.

●With the function of testing temperature and humidity to test environmental temperature and humidity in real time.

●With data storage capability to realize data playback.

●The display is color touchscreen which is convenient for detection personnel to test and use.