YNPDF-1000 DC Grounding Fault Tester

At present, the core issue in locating grounding faults of DC power sources in the power system is the large on-site interference. Measurement under different DC power sources and operating conditions results in poor anti-interference performance, leading to many products being misjudged. This is a drawback and a common phenomenon of this series of products. Our product was able to quickly establish itself in this market because it successfully solved the interference problem. The DC system grounding fault tester (split type) is developed and produced using phase advance processing technology and data transfer algorithm technology.YNPDF-1000 DC Grounding Fault TesterBetween the two types of online and portable, the usage method is portable and the performance is online. This instrument has the characteristics of high detection sensitivity, strong anti-interference ability, small size, light weight, and easy use. When searching for grounding faults in DC systems, there is no need to disconnect the power supply, and grounding point positioning can be achieved. The instrument can detect the resistance value of the grounding resistance of the DC system, providing a suitable and reliable high-precision detection instrument for the search and location of grounding faults in the power DC system.

1. This instrument is divided into (transmitter) and (analyzer). The transmitter is powered directly from the bus, without the need for external AC or battery power, making operation more convenient;

2. Solved all faults such as virtual grounding with poor insulation status, high resistance grounding, multi-point grounding, single point grounding, low resistance grounding, direct grounding, mixed line grounding, loop grounding, capacitor grounding, AC grounding, transistor isolation grounding, etc;

3. Eliminate grounding faults in the DC system, avoid interference from large capacitors distributed on site, accurately lock the fault in a small range and locate it;

4. Accurately detect the magnitude of leakage current in the circuit, and quickly and accurately locate the fault point based on the magnitude of leakage current before and after the grounding fault point;

5. DC systems below 250V share a set of DC grounding detectors and do not have any other special requirements for DC voltage;

6. Signal output power: ＜ 0.15W, internal current limiting protection, no impact on relay protection, automation devices, and operation circuits, safe to use;

7. Intelligent current clamp, automatically detects the open and closed status of large and small current clamps, with a unified interface for large and small clamps;

8. Capable of adapting to grounding caused by AC/DC surge, ring network power supply grounding, diode isolation power supply grounding, and high resistance grounding;

9. Can detect battery grounding faults; Detect the value of busbar capacitance;

10. No need for installation, no need for power outage, no need to disconnect or shake insulation, quickly locate grounding faults;

11. Luxurious outer packaging, easy to carry.

1. Transmitter
1. Working voltage: Take power directly from the busbar (working voltage is 30V~280V)
2. Voltage measurement range: 0-300V
3. Voltage measurement accuracy: ≤ 1%
4. Working mode of bridge: unbalanced bridge
5. Detection range of busbar grounding resistance: 0-999.9k Ω
6. Measurement accuracy of busbar grounding resistance: ≤ 10% ± 2k Ω
7. Capacitor detection range: 1uF-200uF
8. Capacitor detection accuracy: ≤ 15% ± 2uF
9.50Hz AC intrusion detection range: AC 0V-280V
10.50Hz AC intrusion detection accuracy: ≤ 1%
11. Transmission signal current: 0-10mA 0.5Hz
12. Power consumption: less than 10W
13. Dimensions: 163 × 215 × 66mm
14. Weight: 1kg
15. Temperature adaptation: -10 ℃± 50 ℃
2. Analyzer
1. Working voltage: 12V (for lithium battery operation, the working voltage is 9.6V~12.6V)
2. Detection range of branch grounding resistance: 0-300k Ω
3. Measurement accuracy of branch grounding resistance: 0-100k Ω ≤ 10% ± 2k Ω
100-300k Ω displays specific values
4. Leakage current measurement range: 0-100mA
5. Sensitivity of leakage current detection: ≤ 0.1mA
6. Measurement accuracy: 100%
7. Alarm method: Data
8. Power consumption: less than 1W
9. Dimensions: 163 × 215 × 66mm
10. Weight: 1kg