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

Alternative product names: 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 circumstances, the circulating current stays within the safe range, allowing the cable to operate smoothly. Once the sheath is damaged or the grounding system fails, the circulating current will experience abnormal "runaway"—either a sharp increase or a sudden drop to zero, leading to cable overheating, insulation aging, and eventually tripping and power outages in just a few steps. How to equip this power "aorta" with real-time electrocardiographic monitoring? The TLKS-PLGD High-Voltage Cable Line Grounding Circulation Monitoring Device from Telincon 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 dug up an underground high-voltage cable with one scoop while working. Surrounding residents were plunged into darkness instantly. After the Songjiang Power Supply Company's Control Center 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 residents. Upon investigation, the site had narrow roads and was a combined high- and low-voltage pole line, 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 efforts, fully restored power supply by the afternoon of the same day.

Similar accidents occur daily in urban underground spaces—municipal excavation, road reconstruction, 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 on-duty "sheath health inspector" with only one responsibility: real-time monitoring of every fluctuation in the grounding circulation. 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 in grounding current (such as when the grounding wire is stolen), 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 high-voltage cable metal sheaths 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 "know everything without leaving home."

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 utility tunnels and cable trenches.

7.Optional Anti-Theft and Cutting Expansion: 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 Power Supply Time: ≥30 days

(5)Resolution: ≥12 bits

V. Intelligent Operation and Maintenance: Control Everything with One Screen

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 grasp the cable status without leaving home, truly achieving "remote control, precise operation and maintenance."

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

The Telincon TLKS-PLGD High-Voltage Cable Line Grounding Circulation Monitoring Device is not just an intelligent device, but also a trusted cable safety butler. In the future, Telincon 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 power operation and maintenance ecosystem. Product specifications can be customized according to customer needs, quotations are based on market conditions, and specific prices are subject to telephone negotiation. For more product details, please contact Manager Li of Telincon Technology at 1/8/8/2/0/4/7/9/2/3/1 (WeChat and QQ are the same).