Email this article Inspection of overvoltage protection devices during operation: What, why, how and when. Part 3
- Authors: Terentyev D.E.
- Issue: No 6 (2024)
- Pages: 74-79
- Section: MEASUREMENTS AND SYNCHRONIZATION
- URL: https://journals.eco-vector.com/2070-8963/article/view/637217
- DOI: https://doi.org/10.22184/2070-8963.2024.122.6.74.79
- ID: 637217
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Abstract
The surge protection devices inspection for low-voltage power supply installations is considered. In the first part of the paper the following questions were answered: what to test surge protectors with and why to do it. In the second part, surge arresters for protection of communication and data transmission circuits were considered.
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About the authors
D. E. Terentyev
Author for correspondence.
Email: ic@commeng.ru
Russian Federation
References
- ГОСТ IEC 61643-11-2013. Устройства защиты от перенапряжений низковольтные. Часть 11. Устройства защиты от перенапряжений, подсоединенные к низковольтным системам распределения электроэнергии. Требования и методы испытаний.
- ГОСТ IEC 61643-12-2022. Устройства защиты от импульсных перенапряжений низковольтные. Часть 12. Устройства защиты от импульсных перенапряжений в низковольтных силовых распределительных системах. Принципы выбора и применения.
- УЗИП для низковольтных ЭПУ Commeng OVP. Как устроено. Что внутри. Яндекс-Дзен, блог "Электрик и связист это сила".
- Устройства защиты фотоэлектрических систем УЗФЭС. Техническое описание. www.commeng.ru.
Supplementary files
Supplementary Files
Action
1.
JATS XML
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Fig. 14. One of the most common designs of a circuit breaker. The contact to be opened is circled in red. The SPD is made as a monoblock
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Fig.15. Replacement module. The contact (circled in red) opened, the mechanical indicator popped out of the housing, indicating that the replacement module is faulty.
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Fig.16. Varistors made using TVT technology
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5.
Fig. 17. Three-phase SPD. To protect each phase in the L-N circuit, a replaceable module is connected, which has its own control contacts. The fourth module, for connection between N and PE, is implemented on the arrester and does not need to be controlled (see note 10). Source: www.streamer.ru
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Fig.18. Functional diagrams of LED indication of serviceability (left) and remote control of varistor overheating (right)
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7.
Fig.19. SPD for protection of three-phase and neutral conductors, made using TVT technology. The state of varistors connected to the phases is indicated by three LEDs. Three control thermal fuses are connected in series, the control circuit is brought out to the terminal block
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