TLKS-PLGD On-Line Monitoring Device for Grounding Current of Outdoor Terminals of High-Voltage Cables

Alternative product names: Cable Sheath Current Monitoring System, On-site Grounding Circulation Online Monitoring Device for Outdoor Terminals of High-voltage Cables, Cable Grounding Circulation Detection Device, Cable Sheath Circulation Monitoring and Acquisition Terminal,

I. A single fault affects thousands of households – Cable monitoring cannot be ignored

On November 12, 2025, a construction unit in Sichuan dug up a high-voltage cable during pipeline construction, causing a single-phase grounding fault in a 10kV line, burning out the main line disconnecting switch, and resulting in power outages at a local hospital, 4 schools, and 5 residential communities. The power supply company carried out emergency repairs for nearly 6 hours. Similar accidents are common. In the process of urbanization and industrialization, the power system undertakes the task of energy transmission, and high-voltage cables are the "aorta" of power transmission. Their operating status affects the reliability and safety of power supply. However, due to factors such as external environment, mechanical external forces, and material aging, abnormal grounding currents are prone to occur in the metal sheaths of high-voltage cables, which may lead to cable faults and power outages in severe cases, causing economic losses. Therefore, real-time and accurate monitoring of cable sheath status is an important task in power operation and maintenance management. The TLKS-PLGD On-site Grounding Circulation Online Monitoring Device for Outdoor Terminals of High-voltage Cables launched by Telikom is an intelligent monitoring solution to solve this problem.

II. Intelligent monitoring, preventing problems before they happen

The TLKS-PLGD On-site Grounding Circulation Online Monitoring Device for Outdoor Terminals of High-voltage Cables is like a tireless "cable doctor", capturing subtle changes in the sheath grounding current in real time. It adopts high-precision sensors to continuously monitor the current waveform and amplitude. Once an abnormal mutation is detected – such as a sudden increase or drop to zero current – the system immediately initiates intelligent alarm, and delivers early warning information to operation and maintenance personnel in the first time through multiple methods such as SMS, APP, sound and light alarms.

III. Multiple protections, one device for multiple uses, more worry-free

1. Real-time online monitoring: Continuously collects the waveform and amplitude of the grounding current of the metal sheath of high-voltage cables, with high measurement accuracy, greatly reducing the burden of manual patrol inspection.

2. Intelligent alarm mechanism: Automatically triggers an alarm when the grounding current mutates (such as a sharp increase or a sudden drop to zero), and notifies operation and maintenance personnel through SMS, APP, sound and light alarms, etc.

3. Anti-theft monitoring capability: Equipped with a function to prevent theft of grounding wires. Once a cutting or theft occurs, the system will immediately alarm and accurately locate the incident location.

4. System self-inspection function: Regularly conducts self-diagnosis of the equipment, and automatically reports abnormalities to the monitoring center when detected.

5. Remote data access: Supports sending real-time data to the mobile terminals of operation and maintenance personnel via 4G network, facilitating convenient access anytime and anywhere.

6. Data recording and analysis: Automatically saves historical data and fault information, provides various visual reports such as line charts and bar charts, and supports generating statistical reports on a weekly, monthly, quarterly, and other cycles.

7. Flexible power supply mode: Adopts solar energy combined with lithium battery power supply, and can also be equipped with CT power extraction mode according to on-site environment, adapting to various complex working conditions.

8. Extended anti-cutting and anti-theft function: Can be equipped with a cable anti-cutting and anti-theft module (optional configuration) according to actual needs, further enhancing security protection capabilities.

IV. Robust parameters, stand the test

(1)Power supply mode: Solar energy + lithium battery

(2)Service life: ≥3 years

(3)Protection level: IP68

(4)Battery power supply time: ≥30 days

(5)Resolution: Above 12 bits

V. Smart operation and maintenance, at your fingertips

The TLKS-PLGD On-site Grounding Circulation Online Monitoring Device for Outdoor Terminals of High-voltage Cables adopts advanced circulation detection technology, just like installing an "electrocardiograph" for the cable, capturing sheath health signals in real time. When an abnormality occurs, the system responds in seconds and accurately locates the problem point. Meanwhile, it supports multiple communication methods such as 4G public network and wireless transmission, allowing operation and maintenance personnel to have a clear understanding of the cable status without leaving their homes, truly achieving "remote control, precise operation and maintenance".

VI. Cooperate with Telikom to create a new future for power safety

The TLKS-PLGD On-site Grounding Circulation Online Monitoring Device for Outdoor Terminals of High-voltage Cables is not only an intelligent device, but also a reliable cable safety butler for you. From the chain power outage caused by a dug-up cable during construction at a school in Nanxi, Yibin, to various cable accidents nationwide caused by external damage and abnormal sheath circulation, each fault reminds us: Early warning and intelligent monitoring are the fundamental ways to prevent risks. Telikom 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 telephone negotiation. For more product details, please contact Manager Li of Telikom Technology at 1/8/8/2/0/4/7/9/2/3/1, WeChat and QQ are synchronized.