KDJK-20A Overhead line ground fault detector

Paglalarawan

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 kg, practical and convenient, which solves the above problems well, and makes the power outage check line more accurate, fast, convenient and easy.

Overhead line ground fault detector

Mga katangian ng produkto

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, madaling gamitin, durable

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 (10kv, 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 metro.

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 (0-100mA) 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, ligtas at maaasahan.

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, magaan ang timbang, simpleng operasyon, madaling dalhin

Overhead line ground fault detector

1, grounding fault high-voltage test signal generator

Output voltage	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	±1mA
Output power	50W
Mode ng display	Chinese LCD
LCD size	90mm*73mm
Suplay ng kuryente	Lithium battery 24V/10Ah
Working time	more than 4h
Operating temperature	-10℃ ~ +50℃
Device size	327mm*282mm*218mm
Timbang	8kg

2, overhead line fault signal transmitter

Saklaw ng pagsubok	0.0mA ~ 1200A (50/60Hz automatic)
Resolusyon	0.1mA
Test method Forceps	CT
Mouth size	φ50mm
Wireless distance	30m
Transmission rate	2 times/second
Working time	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
Suplay ng kuryente	DC6V No. 7 Alkaline battery (1.5V AAA×4)
Insulated rod Five insulated rod	5m
Insulation strength	AC60kV/rms
Line test Line voltage below 60kV with insulated wire test, below 35kV bare wire test
Dimensions Host dimensions	lapad ng katawan, thickness and height 87*37*262mm

3, overhead line fault signal receiver

Saklaw ng pagsubok	0.0mA ~ 1200A (50/60Hz automatic)
Test katumpakan	±2%±5dgt
Rate ng sampling	2 times/second
Wireless distance	30m
Working time	more than 10h
Suplay ng kuryente	DC7.5V 5 alkaline battery (1.5V LR6×5)
LCD display size	62mm x 44mm
Data storage	200 mga grupo
Tumatanggap	When the battery voltage drops to 5.2V, the battery low voltage symbol is displayed
Operating temperature	-10°C ~ 40°C
Storage temperature	-10℃ ~ 60℃
Relatibong kahalumigmigan	0 ° C to 31 ° C ≦75%, 31 ° C to 40 ° C ≦50%
Suitable for safety IEC1010-1, IEC1010-2-032, pollution level 2, CATⅢ(600V)IEC61326(EMC standard)
Mga Dimensyon	Lapad ng katawan, thickness and height 100*35*204mm