TLKS-PLGD High-Voltage Cable Line Grounding Circulation Monitoring Device

Product aliases: Cable Sheath Circulation On-line Monitoring System, High-voltage Cable Line Grounding Circulation Monitoring Device, Cable Grounding Circulation On-line Monitoring System, Cable Circulation On-line Monitoring Equipment,

During operation, high-voltage cables naturally generate induced voltage on their metal sheaths. When both ends of the sheath are grounded to form a path, circulating current is produced. Under normal conditions, the circulating current stays within a safe range, allowing the cable to operate smoothly. However, if the sheath is damaged or the grounding system fails, the circulating current will abnormally "run wild"—either surging sharply or dropping to zero instantly. This can cause the cable to overheat, age its insulation, and eventually trigger a power outage, all in just a few steps. How can we equip this "main artery" of power with real-time electrocardiogram monitoring? The TLKS-PLGD High-voltage Cable Line Grounding Circulation Monitoring Device from Teluck is precisely the intelligent tool tailored for this purpose.

I. Accident Warning: One Cable, Half a City in Darkness

On May 1, 2026, at a construction site on Zhongshan West Road in Songjiang District, Shanghai, an excavator accidentally dug into an underground high-voltage cable with its bucket, plunging nearby residents into darkness. After the Regulation and Control Center of Songjiang Power Supply Company detected a 10kV line trip signal, it immediately organized operation and maintenance personnel to inspect along the route and quickly located the accident site based on information provided by enthusiastic citizens. Upon investigation, the site had narrow roads and combined high- and low-voltage pole lines, making the repair environment extremely complex. Repair personnel quickly isolated the damaged cable, connected a power generation vehicle to ensure temporary power supply, and after continuous work, fully restored power supply by the afternoon of the same day.

Similar accidents occur daily in urban underground spaces—municipal excavation, road reconstruction, and illegal drilling, each "accidental damage" could cut off power to hospitals, schools, and commercial districts. In addition to external damage, abnormal grounding circulation caused by aging, corrosion, or load fluctuations of cable metal sheaths is also a latent "time bomb."

II. Intelligent Monitoring, 24-Hour Online Duty

The TLKS-PLGD High-voltage Cable Line Grounding Circulation Monitoring Device acts as a 24/7 "sheath health inspector" with only one responsibility: to monitor every fluctuation of the grounding circulation in real time. The device consists of a sheath circulation sensor and a sheath circulation collector, which can real-time monitor the grounding current waveform and amplitude of the high-voltage cable metal sheath, accurately identify transient increases or sudden decreases (such as grounding wire theft) of the grounding current, and upload data to the monitoring platform via 4G network to ensure the safe operation of the cable line.

III. Seven Practical Functions: One Device, Multi-layer Protection

1.Continuous Online Monitoring: Collects the waveform and amplitude of the grounding current of the high-voltage cable metal sheath around the clock, greatly reducing the burden of frequent manual inspections.

2.Automatic Device Alarm: Automatically triggers the alarm function when the grounding current increases transiently or suddenly drops to zero.

3.Device Self-diagnosis: Performs regular self-checks and actively reports to the monitoring center when sensor faults, communication interruptions, or power supply abnormalities occur.

4.Remote Real-time Viewing: With the help of 4G network, real-time data can be pushed to operation and maintenance personnel's mobile phones or computers, achieving "no need to go out, full grasp of the situation."

5.In-depth Historical Data Analysis: Automatically saves past data and fault records, provides visual reports such as line charts and bar charts, and supports generating statistical reports by week, month, and quarter.

6.Flexible Power Supply: Standard configuration includes solar energy + lithium battery, with a battery life of no less than 30 days; CT power supply can also be selected according to on-site conditions, adapting to complex working conditions such as pipe galleries and cable trenches.

7.Optional Anti-theft and Cutting Extension: A cable anti-theft and cutting module can be installed according to actual needs to further enhance the safety level.

IV. Robust Parameters, Withstand Tests

(1)Power Supply: Solar energy + lithium battery

(2)Service Life: ≥3 years

(3)Protection Grade: IP65

(4)Battery Operating Time: ≥30 days

(5)Resolution: 12 bits or more

V. Intelligent Operation and Maintenance: Full Control at a Glance

The TLKS-PLGD High-voltage Cable Line Grounding Circulation Monitoring Device adopts advanced circulation detection technology, like equipping each cable with an "electrocardiograph" to real-time depict the health curve of the sheath. When an abnormality occurs, the system responds in seconds and accurately locates the problem point. It also supports multiple communication methods such as 4G public network and wireless, allowing operation and maintenance personnel to fully grasp the cable status without going out, truly achieving "remote control, precise operation and maintenance."

VI. Conclusion: From "Passive Repair" to "Active Early Warning," Teluck is with You

The TLKS-PLGD High-voltage Cable Line Grounding Circulation Monitoring Device from Teluck is not just an intelligent device, but also a reliable "cable safety butler." In the future, Teluck will continue to innovate, providing smarter and more reliable monitoring solutions for the power industry, and working with you to build a safer and more efficient new ecosystem for power operation and maintenance. Product specifications can be customized according to customer needs, quotations are based on market conditions, and specific prices are subject to negotiation via phone. For more product details, please contact Manager Li of Teluck Technology at 18820479231 (WeChat and QQ are the same).