{"id":3523,"date":"2026-08-06T10:34:39","date_gmt":"2026-08-06T02:34:39","guid":{"rendered":"https:\/\/www.acrel-electric.de\/?p=3523"},"modified":"2026-08-06T10:34:41","modified_gmt":"2026-08-06T02:34:41","slug":"loesung-der-herausforderung-der-temperaturueberwachung-von-energiespeichersystemen-technische-anwendung-des-acrel-artm-8-temperaturinspektionsgeraets-zur-ueberwachung-von-gleichstromschienen","status":"publish","type":"post","link":"https:\/\/www.acrel-electric.de\/en\/loesung-der-herausforderung-der-temperaturueberwachung-von-energiespeichersystemen-technische-anwendung-des-acrel-artm-8-temperaturinspektionsgeraets-zur-ueberwachung-von-gleichstromschienen\/","title":{"rendered":"Solving the challenge of temperature monitoring in energy storage systems: Technical application of the Acrel ARTM-8 temperature inspection device for monitoring DC busbars"},"content":{"rendered":"

Energy storage containers are key components in power transmission and distribution systems. They primarily serve to manage peak loads by storing electricity during periods of low grid demand and releasing it during periods of high demand. This allows for effective balancing of grid loads and reduces electricity costs. <\/p>\n\n\n\n

During operation, the DC bus inside the containers is continuously energized for extended periods, which can lead to heat buildup. Simultaneously, there is a risk of momentary current overload, which can easily result in abnormal temperature increases. If temperature changes are not monitored in real time and potential hazards are not detected early, electrical safety incidents such as short circuits and insulation degradation can occur, seriously jeopardizing the stable operation of the energy storage system. <\/p>\n\n\n\n

Based on an energy storage container project in Hangzhou, this article focuses on the application limits of existing temperature measurement solutions and optimizes the design of a stable and reliable temperature monitoring solution. This provides technical support for the safe operation and maintenance of energy storage containers.<\/p>\n\n\n\n

1 Project Overview<\/h2>\n\n\n\n

This project is a modernization project for temperature monitoring of the DC busbar of an energy storage container in Hangzhou.<\/p>\n\n\n\n

The energy storage container serves both peak load management and emergency power supply. It is a key component for improving the stability of energy transmission and distribution systems and for reducing electricity costs for businesses. <\/p>\n\n\n\n

As a central element of the energy transmission system, the internal DC busbar operates under continuous current for extended periods. This generates heat continuously, which, in combination with brief overcurrents, can lead to problems such as local overheating and sudden temperature increases.<\/p>\n\n\n\n

Due to a lack of methods for long-term and precise temperature monitoring, the risks of busbar overheating cannot be detected and investigated in time, which can lead to various electrical malfunctions. <\/p>\n\n\n\n

Therefore, the installation of a temperature monitoring system suitable for the high temperatures and direct current operation of energy storage containers is a necessary measure to ensure the long-term safe and stable operation of the system.<\/p>\n\n\n\n

2. Product requirements and configuration<\/h2>\n\n\n\n

Due to the special operating conditions of the DC bus in the energy storage tank, the common temperature measurement solutions on the market, including inductive and battery-operated temperature sensors, have significant application limitations and do not meet the requirements for long-term monitoring.<\/p>\n\n\n\n

Inductive temperature sensors utilize the principle of electromagnetic induction to generate energy. They require dynamic current changes to produce induced electrical energy. However, since the direct current in energy storage systems does not fluctuate frequently, these sensors cannot start up properly and therefore cannot perform a temperature measurement.<\/p>\n\n\n\n

Although battery-powered wireless sensors offer the advantage of easy installation, the consistently high operating temperature of the power rail accelerates battery aging and consumption, significantly reducing the sensor's overall lifespan. Subsequent maintenance and replacement costs are high, and the devices are not very stable, making them unsuitable for applications requiring continuous, long-term monitoring. <\/p>\n\n\n\n

Due to these operational challenges and limitations of existing solutions, this project uses a wired temperature monitoring solution consisting of a temperature measuring device and wired PT100 temperature sensors.<\/p>\n\n\n\n

This wired temperature measurement configuration is suitable for the complex conditions of stable DC operation and environments with prolonged high temperatures. It accurately captures the busbar temperature in real time. The temperature readings are displayed in real time on the device's digital display. Simultaneously, it provides overtemperature warnings and fault signal output, enabling the early detection and timely resolution of potential hazards. Thus, it meets the requirements for long-term, stable, and reliable temperature monitoring on the DC side of energy storage systems.<\/p>\n\n\n\n

The requirements for the temperature measuring device are as follows:<\/p>\n\n\n\n

    \n
  1. Support for 8 channels for PT100\/PT1000 temperature signals;<\/li>\n\n\n\n
  2. At least two opener outputs (DO);<\/li>\n\n\n\n
  3. Temperature measuring range: -200 \u00b0C to 600 \u00b0C;<\/li>\n\n\n\n
  4. Temperature measurement accuracy: Class 0.5;<\/li>\n\n\n\n
  5. RS485 interface, MODBUS communication protocol.<\/li>\n<\/ol>\n\n\n\n

    3 Product Launch<\/h2>\n\n\n
    \n
    \"\"<\/figure>\n<\/div>\n\n\n

    For this project, the ARTM-8 temperature measuring device was selected in combination with the PT100 temperature measurement solution.<\/p>\n\n\n\n

    The device displays the temperature of the DC busbar in the energy storage tank in real time on its digital display. The front panel is equipped with alarm indicator lights and features two DO outputs that enable alarm and signal output, thus ensuring monitoring of the DC busbar temperature within the energy storage tank.<\/p>\n\n\n

    \n
    \"\"<\/figure>\n<\/div>\n\n\n

    PT100 wiring method:<\/p>\n\n\n\n

    Terminals 11\u201313 are the wiring terminals for the first channel of the PT100, terminals 13\u201315 for the second channel, etc.<\/p>\n\n\n\n

    For three-wire connection:<\/p>\n\n\n\n

    The A wire of the first PT100 is connected to terminal 11, the B and C wires to terminals 12 and 13 respectively.<\/p>\n\n\n\n

    The A wire of the second PT100 is connected to terminal 15, the B and C wires to terminals 14 and 13 respectively. <\/p>\n\n\n\n

    The same wiring method applies to the other channels.<\/p>\n\n\n

    \n
    \"\"<\/figure>\n<\/div>\n\n\n

    4 photos of the on-site installation<\/h2>\n\n\n\n

    The PT100 temperature sensors in this project are mainly mounted on the nuts of the positive and negative copper busbars inside the energy storage tank.<\/p>\n\n\n\n

    They are attached to the copper busbars in the housing by means of screws.<\/p>\n\n\n\n

    The following illustrations show the DC energy storage container and the installation of the ARTM-8 temperature measuring device.<\/p>\n\n\n

    \n
    \"\"<\/figure>\n<\/div>\n\n\n

    5 Extended Product Solutions<\/h2>\n\n\n
    \n
    \"\"<\/figure>\n<\/div>\n\n
    \n
    \"\"<\/figure>\n<\/div>\n\n
    \n
    \"\"<\/figure>\n<\/div>\n\n\n

    6 Conclusion<\/h2>\n\n\n\n

    This solution is characterized by high temperature measurement accuracy and a large measuring range. It supports synchronous temperature sensing on 8 channels, a dual-channel DO alarm output, and RS485 communication functions. This effectively solves the problems of conventional sensors that are not suitable for DC operation and the reduced battery life at high temperatures.<\/p>\n\n\n\n

    The system monitors temperature changes on busbars in real time. In the event of abnormal temperature increases due to heat buildup or current overload, it issues timely alarms and provides protective circuits to prevent electrical safety risks.<\/p>\n\n\n\n

    This solution provides a solid foundation for the safe and reliable operation of energy storage systems.<\/p>","protected":false},"excerpt":{"rendered":"

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