SIPROTEC 6MD61
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Устройство 7VK61 также может использоваться в качестве защиты от отказов выключателя. Отказ выключателя происходит, когда выключатель не выключается и не отключает повреждение после того, как защитой были поданы команды однофазного и трехфазного отключения. Затем необходимо отключить соответствующую секцию шины для гарантии устранения неприятностей. Вместе с вышеупомянутыми функциями защиты могут быть использованы следующие дополнительные функции 7VK61: защита от повреждений на конце линии, защита от расхождения фаз, защита от повышения напряжения и защита от понижения напряжения.
The relay possesses all functions required to protect a section of the overhead contact line and can therefore be deployed universally.
Features:
Integration of protection and measurement functions into a single unit (7ST61)
Integration of protection, control, measurement and automation functions into a single unit (7ST63)
Shortest tripping times due to adaptive protection algorithms
Effi cient operation due to a universal tool for all tasks
Flexible use thanks to standard communication protocols
Features:
Integration of protection and measurement functions into a single unit (7ST61)
Integration of protection, control, measurement and automation functions into a single unit (7ST63)
Shortest tripping times due to adaptive protection algorithms
Effi cient operation due to a universal tool for all tasks
Flexible use thanks to standard communication protocols
Due to their quality, reliability and design, these relays are optimal for applications requiring high reliability and availability such as power stations, substations, railway and industrial plants. Typical examples include petrochemical industry, chemical industry, cement industry, rolling mills etc. The relays comply with the IEC, EN, IEEE standards (type and routine test) and bear the CE mark. The robust switch contacts are characterized by high make/break capacity, overload capability and continuous current intensity capacity; thus perfect insulation is obtained. Direct control of high-voltage and medium-voltage switchgear is possible. Their high degree of protection and the transparent cover ensure reliable operation in tropical and/or salty sea air ambient conditions.
