Partial Discharge Detector

Partial discharge phenomena of the electrical equipment have different impacts on equipment itself and the power grid, seriously leading to equipment scrapped and grid collapse. So it plays an essential role to monitor partial discharge of electrical equipment early, master the equipment running state accurately, eliminate the problems existing in the equipment timely and effectively for ensuring the safety of the equipment and the power grid itself. There are many ways for electrical equipment PD test, such as pulse current method, DGA method, ultrasonic method, RIV method, optical method, radio frequency method and chemical method, etc. Each method has its own strong points, in comparison, ultrasonic method is more simple and suitable for daily equipment spot inspection and timely mastering electrical equipment running state. The common PD faults of electrical equipment are corona, arc and tracking. Corona an early tracking will not generate heat, and the high temperature environment cover these phenomena, so they can not be detected by infrared thermal imager. But the phenomena will generate high heat, so the instrument can be used to test at a distance. Corona an serious tracking will generate both ultrasonic and high heat, therefore infrared and ultrasonic method can be used. When partial discharge happens in the equipment, it can not be found with the infrared method, while it can be tested with partial discharge detector on the surface or interface of electrical equipment.

Partial discharge detector 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.

Hot tag:partial discharge tester,partial discharge test equipment,hand-held pd tester,portable partial discharge measuringment.

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

2.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.

4.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.

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

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

7.With data storage capability to realize data playback.

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

9.High sensitivity and directivity can accurately locate the line fault.

10.Light weight, easy to carry, easy to operate make the test be carried out in a vehicle with a speed of 30km / h.

11.Ultrasonic test can be applied to a noisy environment, which can not be influenced by surrounding sound.

12.No-contact test whose effective testing distance is up to 30 meters makes test safe and reliable.

13.Live test does not affect the power grid’s normal operation.

14.The use of “ HM-ADMIN " patrol background software can easily conduct data management and evaluation.