Integrated On-line Monitoring System for Transformer (Reactor) PD

The transformer (reactor) PD on-line monitoring system integrates vibration sensor, HFCT (high frequency PD sensor), AE (ultrasonic sensor), UHF (UHF PD sensor) and radio frequency PD sensor. The system can provide user guidance and analysis conclusions by comprehensively analyzing various dynamic operating data and static data, using fault assessment models and experience databases. The transformer (reactor) integrated monitoring system can provide interfaces for data interaction with the core and clamp grounding current monitoring system, winding optical fiber temperature measurement system, transformer neutral point grounding monitoring and other devices.

View Details

SF6 gas leakage alarm device

View Details

Transformer Neutral Point DC Bias Monitoring System

On-line monitoring of DC magnetic bias at the neutral point of the transformer can monitor the noise and vibration of the neutral point of the transformer and the transformer body in real time, so as to realize real-time monitoring of the operation status of the transformer equipment. At the same time, potential faults of the transformer can be found in time by analyzing the monitoring data and provide important data basis for condition-based maintenance. Once the DC at the neutral point of the transformer or the vibration of the transformer body exceeds the standard, the standard, the operator can take timely measures, to prevent major accidents of transformers and systems, it provides a strong and reliable guarantee for the safe, reliable, stable and economical operation of the power system.

View Details

LHRX1908 substation integrated online monitoring system/capacitive equipment online monitoring system

The LHRX1908 substation integrated on-line monitoring system adopts a hierarchical and distributed field bus structure and consists of a monitoring system installed in the substation and a data management system installed at the user end. It can implement on-line monitoring and diagnosis of the insulation status of high-voltage electrical equipment such as CT, CVT, coupling capacitors, bushings, and lightning arresters. Users can collect the monitoring data of several substation monitoring systems to the data management and diagnosis center through the LAN.

View Details

On-line Monitoring System of Transformer Core Grounding Current

The LHTX1306B transformer core/clamp grounding online monitoring system captures instantaneous current changes online in real time, and sends out alarm signals through analysis and judgment to provide accurate and direct judgment basis for operators to assist operators to eliminate core/clamp grounding faults in time. The stored historical data provide basis for condition-based maintenance, evaluation, early warning and risk analysis of transformers, and are powerful tools to ensure safe operation of transformers.

View Details

Laser xenobiometer

LHJG series of power grid foreign body laser removal instrument is specially designed for the rapid removal of foreign bodies in exposed power grid. It provides an ideal high-efficiency remote laser foreign body removal instrument for maintaining the safety of power grid and high-speed railway lines. LHJG series power grid foreign body laser removal instrument using fiber laser as the light source, the use of air-cooled, compact structure design, its electro-optical conversion efficiency is higher than 35%, and maintenance-free operation and other characteristics, cost-effective, far superior to other types of the same power laser. It adopts the international standard optical fiber QBH output head, the wireless controller controls the laser, and the focusing machine vision amplification system is adopted, and the clearing distance can reach 300m.

View Details

On-line Monitoring System of Lightning Arrester

Metal zinc oxide arrester is one of the key equipment of power equipment, the leakage current flowing through the arrester is an important index to measure the insulation degree of the arrester. The JCQ-485 series arrester on-line monitoring device can realize real-time monitoring of the insulation condition of the arrester through real-time on-line monitoring of the full current, resistive current, lightning strike times and lightning strike time of the arrester. At the same time, the potential failure of the metal zinc oxide arrester can be found in time by analyzing the monitoring data, which provides an important maintenance basis for the condition-based maintenance. According to the needs of the field, this product is designed for the remote meter type and sensor type two specifications.

View Details

LHJYJC DC Insulation Intelligent Monitoring System

LHJYJC type DC insulation intelligent detection system, using non-contact intelligent magnetic modulation DC micro-current sensor, by detecting the DC system positive and negative bus grounding leakage current and the voltage of the bus to the ground, using a unique algorithm to measure the two ends of the bus at the same time to the ground resistance, so as to distinguish the grounding fault of the bus. This technology does not need to superimpose any signal on the bus, will not have any adverse effects on the DC system power supply, completely eradicate the bus double-end insulation drop, as well as the bus to ground distribution capacitance caused by misjudgment and leakage, and at the same time greatly improve the accuracy and speed of detection; it is an ideal equipment for detecting insulation resistance.

View Details