KDJK-20A Overhead line ground fault detector
- Описание
- Расследование
Описание
Overhead line ground fault detector
KDJK-20A overhead line grounding fault finder is used to quickly and accurately locate the ground point after the power failure of 10kV fault lines, which can realize the rapid search of distribution network equipment in the case of failure. Reduce the labor intensity of line maintenance personnel, save time and effort, improve work efficiency, power supply reliability and economic benefits of electric power enterprises. The KDJK-20A overhead line grounding fault finder can find the ground fault point in a short time. The built-in battery power supply of the instrument can work for more than 5 hours at a time, the weight is less than 8 кг, practical and convenient, which solves the above problems well, and makes the power outage check line more accurate, быстрый, convenient and easy.
Overhead line ground fault detector
Характеристика продукта
1. Operated by insulated rod, internal fuse protection device, safe and reliable operation
2. Built-in Large capacity lithium battery power supply (car charging), no need to provide additional power supply, легко использовать, прочный
3. The signal generator can be configured with one or more sets of signal acquisition receivers, which can further improve the search speed
4. The current acquisition and receiving wireless antenna is built-in to ensure reliable insulation of the clamp meter
5. It is suitable for the distribution network of small current grounding system to detect the single-phase metallic grounding, arc grounding, transition resistance grounding and other faults of overhead lines.
6. Positioning after line outage, especially suitable for faulty lines with cable branches (10кв, 35KV overhead lines).
7. By injecting the detection signal into the fault phase of the line, the single-phase grounding fault point is determined, which reduces the blindness and reduces the fault detection time.
8. In the state of line power failure, it can quickly and accurately locate the single-phase ground fault point with an error of less than 1 метр.
9. Using dichotomous method for detection, it does not need full line inspection, and reduces the time of fault detection.
10. When the line is running normally, the line load current (0-100мА) can be detected.
11. It is operated on the ground through an insulating rod, and there should be a fuse protection device inside the device to ensure personal safety.
12. The device has built-in low-frequency composite signal source, power signal source, high-voltage signal source and a variety of power modules, and the device realizes a variety of working modes.
13. The device is equipped with a variety of receiving systems, which do not interfere with each other, and can be tested simultaneously or separately.
14. The high voltage signal is applied to make the fault repeat, and the current signal is stable and easy to detect. Fifteen. The ultra-low frequency signal avoids the influence of system distributed capacitance and can locate faults with high resistance values.
16. Transmitter safety features: high voltage start blocking function, output allows direct short circuit.
17. Sensor With high sensitivity sensor, easy to connect on line.
18. Sensor and receiver wireless communication transmission, безопасный и надежный.
19. The device has a variety of protection functions and has good safety test performance.
20. The backlight display can be set for easy use at night Twenty-one. Small volume, легкий вес, простая операция, легко носить
Overhead line ground fault detector
1, grounding fault high-voltage test signal generator
| Выходное напряжение | 0 ~ 10kV |
| Short-circuit protection current | 0 ~ 30mA |
| Ground fault measurement range | Ground resistance ≤100 Kω |
| Detection line length | ≥120km |
| Signal output range | 0 ~ 100mA |
| Signal output accuracy | ±1 мА |
| Output power | 50Вт |
| Режим отображения | Chinese LCD |
| Размер ЖК-дисплея | 90mm*73mm |
| Источник питания | Lithium battery 24V/10Ah |
| Рабочее время | more than 4h |
| Рабочая Температура | -10℃ ~ +50 ℃ |
| Device size | 327mm*282mm*218mm |
| Масса | 8кг |
2, overhead line fault signal transmitter
| Тестовый полигон | 0.0mA ~ 1200A (50/60Гц автоматический) |
| Разрешение | 0.1мА |
| Test method Forceps | CT |
| Mouth size | φ50mm |
| Wireless distance | 30м |
| Transmission rate | 2 раз/секунду |
| Рабочее время | more than 10h |
| Battery voltage detector | When the battery voltage drops to 5.2V, the low voltage indicator lights up and reminds to replace the battery |
| Источник питания | DC6V No. 7 Alkaline battery (1.5V AAA×4) |
| Insulated rod Five insulated rod | 5м |
| Insulation strength | AC60kV/rms |
| Line test Line voltage below 60kV with insulated wire test, below 35kV bare wire test | |
| Dimensions Host dimensions | ширина, thickness and height 87*37*262mm |
3, overhead line fault signal receiver
| Тестовый полигон | 0.0mA ~ 1200A (50/60Гц автоматический) |
| Точность теста | ±2%±5dgt |
| Sampling rate | 2 раз/секунду |
| Wireless distance | 30м |
| Рабочее время | more than 10h |
| Источник питания | DC7.5V 5 щелочная батарея (1.5V LR6×5) |
| Размер ЖК-дисплея | 62mm x 44mm |
| Хранилище данных | 200 группы |
| Receiver | When the battery voltage drops to 5.2V, отображается символ низкого напряжения батареи |
| Рабочая Температура | -10℃ ~ 40 ℃ |
| Температура хранения | -10℃ ~ 60 ℃ |
| Относительная влажность | 0 °С до 31 ° C ≦75%, 31 °С до 40 ° C ≦50% |
| Suitable for safety IEC1010-1, IEC1010-2-032, уровень загрязнения 2, CATⅢ(600В)МЭК61326(EMC standard) | |
| Размеры | Ширина, thickness and height 100*35*204mm |
