Grounding fault locator for overhead power lines

1Grounding fault locator for overhead power linesProduct Introduction

overhead lineOccasionally, grounding faults may occur, especially10KVOverhead power lines, with low ground clearance and complex ground environments, are more prone to occurground faultIt will seriously affect the normal electricity consumption of users, and in severe cases, it may damage the substation equipment, causing major safety accidents.

Common grounding faults include metallic grounding, arc grounding, surge resistance grounding, porcelain bottle breakdown, and lightning arrester breakdown. These grounding faults are all concealed single-phase grounding faultsoverhead lineoccurground faultAfter that, it is very important to quickly and accurately identify the fault point, solve the fault, and restore power supply. Choosing a useful overhead line grounding fault inspection instrument can achieve this.

on the marketGrounding fault locator for overhead power linesThere are various types of instruments, but their principles are generally the same. These instruments include current generating devices, leakage receiving devices, and have a relatively large and bulky appearance, which is very inconvenient for long circuits. Our Iridium TaiKD4000The grounding fault inspection device for overhead power lines is very distinctive, with the current generating end and receiving end designed together, a small appearance, overall light weight, and simple and accurate operation.

KD4000Overhead line grounding fault inspection device, suitable for no longer than25Inspect single-phase grounding faults on kilometer long overhead high-voltage lines and accurately locate the grounding fault points. (The line needs to stop running during patrol operations)The integrated detection clamp has a small volume, light weight, and is easy to install. It can be installed in one go to complete the fault diagnosis of the circuit. The operation is simple and fast, greatly reducing the workload of the operators and improving work efficiency.

Grounding fault locator for overhead power linesTechnical Specifications

Technical Specifications

IIGrounding fault locator for overhead power linesProduct Features:

1. The integrated detection clamp integrates signal transmission and acquisition, with a clamp shaped structure and easy hanging. It can complete line fault testing with one hanging, without the need for two separate output and acquisition signal operations or disconnectionPTTesting is convenient and fast, reducing the number of operators and improving work efficiency.

2. The detection clamp is equipped with a non-contact voltage detector. If the tested circuit is live, it will emit a light alarm, and the host will broadcast a voice prompt to ensure the safety of the operator and equipment.

3. Especially suitable for faulty lines with cable branches. Strong short-circuit detection capability, capable of detecting grounding resistance of0ΩDirect short circuit fault.

4. Output voltage up to8000Vhave8000Vand3000VTwo options to meet different user needs.

5. Large capacity rechargeable battery5200mAHAfter being fully charged, the inspection work of the entire line can be completed.

6. Fast detection speed, test results can be obtained within a few seconds after being connected.

7. 7The fault direction of the inch color screen is clear and distinct. Voice broadcast function, indicating the direction of the fault and providing an electrical alarm.

8. Equipped with Bluetooth communication, the communication distance can reach40m, installationAPPAfter the program, it can be tested and the test results can be viewed on a mobile phone, and used as a handheld receiver.

IIIGrounding fault locator for overhead power linesTest Principle

At each hanging point, the host applies high voltage and alternately applies AC signals from both sides of the current transformer through a detection clamp. At the same time, the current transformer collects high voltage and current signals. After the detection clamp completes the collection, the data is Fourier transformed to calculate the required data, which is sent to the host through wireless communication for fault diagnosis and processing, and then the fault direction is determined.

2. Hang the detection clamp section by section along the line, indicating that the fault point is located at the rear at a certain point, while the next hanging point displays that the fault point is located at the front. Based on this, it can be concluded that the fault point is located between these two testing points, gradually approaching the fault point.

4Grounding fault locator for overhead power linestest method

During the inspection operation, the method of positioning along the line or dividing can be used.

1. Location along the line: Starting from one end of the line, test each pole one by one.

2. 段定位：1/2Perform segmented testing, starting from the midpoint of the line and testing again towards the fault side along the line1/2Segment until the fault point is found.

5Grounding fault locator for overhead power linesoperating procedure

1. Turn on the detection pliers and the host to check if they can communicate wirelessly. The blue wireless icon on the screen indicates that the host and clamp can communicate wirelessly normally. If it appears red, it indicates a communication failure;

2. Insert the grounding pin into the ground nearby (with a minimum depth of penetration)30CM）Then connect it to the host; Connect the testing pliers and the host with high-voltage testing cables;

3. Tighten and connect the detection pliers firmly to the insulation rod; Use an insulating rod to bring the detection clamp close to the high-voltage line and check if the detection clamp will emit a light alarm;

4. The detection clamp should be securely attached to the overhead power line and the clamp should be closed;

5. Press the host button“test”Button, start testing; After the test is completed, if a circuit fault is found, the arrow on the host screen indicates the direction of the fault point (note that the screen color corresponds to the left and right colors of the detection clamp), and at the same time, a voice prompt is issued.