Industrial Insulation Monitoring AIM-T500

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.

　　Online monitoring is an important way to control the insulation of electrical equipment and lay an important foundation for the stability of the power system. When monitoring electrical equipment online, detection technology should be used to promote the efficiency improvement of power system operation and enable electrical equipment to play a greater role in the specific working process. In this study, the principle, system design, and implementation methods of the insulation online monitoring system for electrical equipment were mainly analyzed, followed by the research on electrical equipment condition maintenance technology.

　　Keywords: electrical equipment; Insulation; Online monitoring; Condition maintenance

　　In the process of evaluating the overall performance of the power system, the insulation performance evaluation of electrical equipment is a very important component. The insulation condition will have a direct impact on the operation of electrical equipment. If the insulation of electrical equipment is relatively weak, it will seriously threaten the life safety of relevant personnel. Although traditional periodic power outage monitoring is also a method, this installation method is not in line with the new needs of the times and is difficult to adapt to. In this context, online monitoring technology for electrical equipment has emerged. This technology effectively compensates for the shortcomings of traditional monitoring techniques, promotes the improvement of electrical equipment maintenance effectiveness, and provides guarantees for the safer and smoother operation of the power system.

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