Online Monitoring Device for Grounding Loop Current in Power Cable Sheaths - A New Guarantee for Electrical Safety

Product Aliases: Cable Sheath Circulation Current Online Monitoring System, Power Cable Sheath Grounding Circulation Current Online Monitoring Device, Cable Grounding Circulation Current Tester, Comprehensive Cable Sheath Online Monitoring Device, Cable Sheath Circulation Current Online Monitoring Device

Cable Sheath Circulation Current Online Monitoring System

I. Product Description:

Cable sheath circulation current, as a complex and important phenomenon in high-voltage power cable systems, is closely related to various factors of the cable system. Three-phase load imbalance, electromagnetic induction, and temperature changes are the main causes of sheath circulation current. The interaction of these factors induces unbalanced voltage and current on the cable metal sheath, known as sheath circulation current. The presence of sheath circulation current has a significant impact on the cable system. The heating phenomenon caused by sheath circulation current accelerates the aging process of the cable metal sheath, reducing its insulation performance and mechanical strength, thereby shortening the cable's service life. Additionally, excessive circulation current may cause local overheating, increasing the risk of cable failures such as insulation breakdown and short circuits. To effectively address these issues, Shenzhen Telikon Technology Co., Ltd. has innovatively developed the Cable Sheath Circulation Current Online Monitoring System.

II. Working Principle:

The Cable Sheath Circulation Current Online Monitoring System integrates core components such as sheath circulation current sensors and collectors, enabling precise real-time monitoring of grounding current. This system not only has anomaly detection capabilities to promptly identify potential issues but also protects cable lines and their cross-bonding lines, grounding lines, and other critical assets from damage through preventive monitoring. Its remote viewing function allows maintenance personnel to receive monitoring data anytime and anywhere, fully grasping the cable's operational status. This real-time warning mechanism replaces the traditional manual periodic inspection mode, significantly reducing the workload of operation and maintenance personnel. At the same time, the system automatically alerts and informs the location of stolen grounding lines in case of current anomalies, effectively preventing sudden accidents. Through precise measurement and scheduled inspections, it significantly improves the efficiency and accuracy of system maintenance.

III. Product Functions:

◆Online Monitoring: Real-time monitoring of the waveform and amplitude of the grounding current of the metal sheath of high-voltage cable lines, reducing the workload of inspection personnel, and achieving high-precision detection;

◆Automatic Alarm: Automatically triggers the alarm function when the grounding current transiently increases or suddenly decreases to zero;

◆Cable Anti-Theft Monitoring: After grounding lines are stolen, the system automatically alarms and informs the location of the stolen grounding lines;

◆System Self-Diagnosis: Real-time detection of system faults and uploading the results to the monitoring platform;

◆Remote Viewing: Real-time monitoring data can be sent to maintenance personnel's handheld devices via 2G/3G/4G networks;

◆Information Recording and Analysis: Records measurement data, fault records, and other relevant parameters, providing intuitive charts such as curves, bar charts, and statistical reports(weekly, monthly, quarterly, semi-annual, annual);

◆Solar-powered, supports CT power extraction, meeting the power supply needs of complex sites.

IV. Technical Parameters:

1. Sensitivity: ≤±0.1A

2. Measurement Range: Not less than 0-300A/50Hz

3. Maximum Measurement Deviation: Standard reading x1%+0.5A

4. Sensor Type: Uses clamp-type openable sensors

5. Insulation Isolation Level: Not less than DC10KV/1 minute

7. Housing Material: Uses corrosion-resistant materials that do not generate eddy currents

8. Protection Level: Meets the requirements of IP68 as specified in GB4208IP68 requirements

V. Summary:

In summary, the Cable Sheath Circulation Current Online Monitoring System is a phenomenon that cannot be ignored in high-voltage power cable systems. Its monitoring and control are of great significance for ensuring the safe and stable operation of the power system. By using the Cable Sheath Circulation Current Online Monitoring System for real-time monitoring and control, the risk of cable failures can be significantly reduced, the overall operational efficiency of the power system can be improved, and cable failures and safety issues caused by circulation current can be effectively prevented and reduced.

For detailed information about the equipment, please contact Ms. Li of Shenzhen Telikon Technology Co., Ltd. by phone

Mobile Number1/3/6/8/2/3/5/1/6/3/5/ (same number for WeChat, can be added)

Custom products, the quoted price is a reference range at the time of market release, actual price to be discussed by phone.

VI. Precautions:

1. Please operate with care to prevent the device from accidentally falling or suffering strong impacts.

2. To ensure the normal operation of the solar panel, avoid strong external impacts to prevent damage.

3. During installation, try to ensure that the solar panel faces the direction of sunlight to maximize its energy collection efficiency.

4. Before installing the device, ensure that the power switch is turned off. After installation is complete, safely turn on the power switch.

5. Unauthorized disassembly of the device's structure or circuit boards is strictly prohibited. Unauthorized disassembly will void the warranty.