Industrial insulation monitoring device

Description :

　　The low-voltage system of offshore oil platforms is very different from that of onshore power systems. It belongs to the neutral point ungrounded system. In the event of a single-phase grounding fault, the system allows normal operation with the fault for 2 hours to ensure that important electrical equipment at sea will not be immediately shut down. Nowadays, most offshore platforms use insulation monitoring devices to monitor the insulation condition of the system. When there is a fault, an alarm is issued, but it cannot detect which load in the system has an insulation fault. Platform electrical personnel need to cut off the low-voltage load circuits on site one by one for fault diagnosis, which brings great difficulties to the search for grounding faults. When a single-phase grounding fault occurs in the low-voltage busbar, in order to lock the fault point in time and facilitate on-site electrical personnel to timely troubleshoot and solve the grounding fault, and improve the stability of the low-voltage system, an insulation monitoring and fault location system can be used to achieve the location of the insulation fault circuit and phase line.

Introduction to Industrial Insulation Monitoring DevicesAnkerui AIM-300, AIM-T500, AIM-T500L Insulation Monitoring Instruments

　　The Ankerui AIM-T series insulation monitoring instrument is mainly used in industrial IT distribution systems, including AIM-T300, AIM-T500, and AIMT500L products, all of which are suitable for pure AC, pure DC, and AC/DC wet combination systems.

　　The AIM-T300 is suitable for AC, DC, and AC/DC hybrid systems below 450V, while the AIM-T500 is suitable for AC, DC, and AC/DC hybrid systems below 800V.

　　The AIM-T500L has added one CAN communication interface and insulation fault location function compared to the AIM-T500.

1、 Product Overview

Insulation fault location industrial insulation monitoring deviceIt is mainly used to monitor the insulation condition of IT systems (ungrounded systems) to ground, and to promptly alarm when insulation faults occur in the system, reminding electrical maintenance personnel to troubleshoot the faults.

2、 Technical parameters

AIM-T300, AIM-T500, AIM-T500L Insulation Monitoring Instruments

ASG200 Test Signal Generator

AIL200-12 insulation fault locator

ACPD series insulation monitoring coupling instrument

3、 Specification parameters

4、 External dimensions

5、 Product quotation

6、 Application scope

Insulation fault location industrial insulation monitoring deviceSuitable for industrial fields such as electrolytic aluminum, mines, glass factories, electric furnaces and testing equipment, metallurgical plants, chemical plants, explosive hazardous areas, computer centers, and emergency power supplies in AC and DC ungrounded systems

　　The low-voltage power grid system of offshore oil platforms belongs to an independent power grid system. In order to ensure platform production, the low-voltage system of the platform cannot be shut down due to insulation failure of a certain load. Therefore, the 0.4kV low-voltage power system of the platform adopts a neutral point insulation system. The characteristic of a neutral point insulation system is that when a single-phase grounding occurs, the voltage and phase between each phase remain unchanged, and the balance of the three-phase system is not disrupted, so it can continue to operate in a short period of time. However, if operated with faults for a long time, it can cause phase to phase short circuits, or when single-phase arc light is grounded, the system will resonate and cause overvoltage, which will put a lot of pressure on the platform production.

　　Nowadays, most oil platforms are equipped with insulation monitoring devices. The original insulation monitoring equipment can only monitor the insulation level of the entire busbar and cannot detect which specific load has insulation faults. Therefore, insulation monitoring and fault location systems can be used to locate insulation fault circuits.

　　Condition based maintenance is essentially a deeper transformation of the traditional regular maintenance management system. To better carry out condition based maintenance work, it is necessary to reform the traditional maintenance management mode. Build a more independent and responsible maintenance organization, clarify organizational responsibilities, and improve operational efficiency. Utilize a more networked and open integrated diagnostic system for substation operation and maintenance information, monitor equipment parameters and development trends, and regularly analyze status reports. To provide important references for making more accurate maintenance decisions.

　　Industrial insulation monitoring device

　　The key condition for promoting the effectiveness of condition based maintenance is to choose a more reliable and applicable condition monitoring method, combined with the damage mode, characteristics, and importance of the monitoring equipment, and compare the comprehensive technical and economic feasibility to select a more effective monitoring method. For substations undergoing management and electrical equipment transformation, when carrying out status maintenance work, customized point maintenance can be carried out for the equipment first, using less automated and general equipment status detection and analysis methods. Through continuous improvement and mechanism formation, more advanced automated instrument detection equipment can be introduced, and finally a highly computerized equipment status maintenance mechanism can be introduced. In the process of selecting relevant analysis and diagnostic software systems, emphasis should be placed on their compatibility, openness, and integration characteristics, in order to provide information to decision-makers in a more intuitive way and facilitate more accurate judgments.

　　The use of more advanced computer maintenance systems in state maintenance can improve the level of maintenance management. The so-called maintenance system essentially belongs to application management software, and after its introduction, it needs to carry out customized processing to complete more detailed basic work. For example, maintenance standard file packages, equipment coding, collection and organization of relevant historical data, etc. Due to the progressiveness characteristics of the system, there may be many inadaptability with the traditional management mode in practical application, and relevant adaptation work should be done well.

　　Industrial insulation monitoring device

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