■ Product Overview
Partial discharge phenomena of the electrical equipment of electrical equipment itself and the power grid will have varying degrees of impact, serious and even cause equipment scrapped and grid collapse, so early monitoring partial discharge of electrical equipment, accurately mastering the equipment running status, timely and effectively eliminate the problems existing in the equipment, the equipment fault in the bud, It plays a vital role in securing equipment and the power grid itself. There are many methods of local discharge detection of electrical equipment, such as: pulse current method, DGA method, ultrasonic detection method, RIV method, optical measurement method, radio frequency detection method and chemical methods. All kinds of detection methods have their own advantages, but compared with ultrasonic detection method is simple and easy to use, very suitable for daily equipment point inspection, real-time control of the running status of electrical equipment. Common local discharge faults of electrical equipment generally include: corona, arc and electric mark. Corona and early electrical trace will not produce heat, and the high temperature of the environment will cover up these phenomena, with daily infrared thermal imager can not be detected, but it will produce ultrasonic signals, with ultrasonic inspection device can be remote detection; Arc and serious electrical trace in the ultrasonic generation at the same time will also produce high heat, so infrared and ultrasonic methods can be tested; However, when the release occurs in the equipment, the infrared method can not be found, and the ultrasonic inspection instrument can be detected on the surface of the electrical equipment or the joint surface.
Ultrasonic inspection device is a detection device that diagnoses potential faults of power lines by collecting abnormal ultrasonic signals of power lines and analyzing them with software. This device is in the state of no power outage to determine the location of hidden trouble and fault type. Device by ultrasonic detector (ultrasonic sensor) after collecting abnormal ultrasonic signal, transmission to the host, at the same time, through the analysis of the host built-in software accurately diagnose the fault hazard type and severity level, and converted into audible sound signal and the output waveform, accurate inspection personnel found line fault hidden trouble, prevent the happening of the malignant fault, to avoid the unnecessary power outages, It improves the reliability of power supply, improves the working efficiency of inspection personnel and reduces the labor intensity of inspection personnel.
■ Functional features
▲ Portable design, small size, light weight, easy to carry, one person can operate. The high brightness laser can locate the fault point.
▲ 3 megapixel HD camera can easily focus to detect fault points, and take photos of tower signs and faulty equipment.
▲ The abnormal ultrasonic signal detected by the detector is converted into audible sinusoidal signal and intuitive waveform, according to the sound and waveform can clearly distinguish the discharge intensity.
▲ Embedded GPS receiver automatically stores coordinate data, and provides GPS navigation function, convenient query and save detection path.
▲ With the function of temperature and humidity detection, real-time detection of ambient temperature and humidity.
▲ With data saving function, can realize data playback function.
▲ Display screen for color touch screen, easy to detect and use.
▲ High sensitivity, with direction and directivity, can accurately locate the line fault.
▲ Light weight, easy to carry, simple operation, can be in the speed of 30km/h vehicle for inspection.
▲ Ultrasonic detection can be applied to noise environment, not affected by environmental sound.
▲ Non-contact detection method, effective detection distance up to 30 meters.
■ Technical parameters
system | WINCE6.0 |
CPU | frequency533MHz |
memory | Run a memory256MB DDR2, 1GB NandFlash |
display | 4.3" TFT true color touch LCD display, resolution 480 * 272 |
interface | SD memory card, USB, serial port, earphone |
SD Memory card | Over 8G TF card |
camera | 300 Megapixel HD camera |
The accessory configuration | GPS,Temperature and humidity, high brightness laser pointer |
Storage capabilities | GPS Coordinates, time/date, temperature/humidity |
Frequency range | 20~150kHz |
The sensor | 40kHz x 1Ea |
Using the environment | -25℃~70℃ |
Relative humidity | 0~95%RH |
Charger specifications | The input:100~240V, 50/60Hz |
Output: voltage 20V, current 3.25A | |
The power supply | Battery power: lithium battery |
Working hours: 8 hours | |
Battery protection: When there is no operation within 5 minutes, the LCD backlight will turn off. When there is no operation within 20 minutes, the LCD backlight will turn off automatically. When the battery is lower than 5%, the system will beep to prompt you to save the data in time. Users need to shut down and charge. |