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Busbar Protection
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The centralized and distributed busbar protection provide scalable busbar and breaker failure protection for various busbar configurations. The distributed busbar protection consists of one Central Unit (CU) and a number of Bay Units (BU). The central unit links to bay units via optical fibers in point-to-point communication mode. The patented weighted anti-saturation algorithm in the current differential protection quickly clears internal fault during CT saturation while keeps security to external fault.
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PCS-915IC Centralized Busbar Relay
The PCS-915IC centralized busbar relay provides comprehensive protection solution for various arrangements of all voltage levels. The default busbar arrangements include single busbar with/without section, double busbar with/without section, double busbar with transfer bus, breaker-and-a-half arrangement and ring-breaker arrangement. The relay provides flexible configuration of the busbar topologies to meet specific applications. Due to its extensive CT input and I/O capability, the PCS-915IC is capable to protect up to 25 feeders.It provides fast and secure low impedance bu…
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PCS-915SC Centralized Busbar Relay
PCS-915SC centralized busbar relay integrates busbar differential protection, bus coupler/section protection (includes overcurrent protection, switch-onto-fault protection, dead zone fault protection, dual CTs BC/BS dead zone differential protection and breaker failure protection), feeder protection (includes overcurrent protection, dead zone fault protection and breaker failure protection), voltage protection (phase overvoltage protection and undervoltage protection) and frequency protection (overfrequency protection, underfrequency protection and frequency rate-of-change protectio…
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PCS-915ID Distributed Busbar Relay
The PCS-915ID distributed busbar protection is used for protecting and monitoring various busbar arrangement with all voltage levels, including single busbar with/without section, double busbar with/without sections, double busbar with transfer bus, breaker-and-a-half arrangement and ring-breaker arrangement. It adopts distributed structure, consisting of one Central Unit (CU) and a number of Bay Units (BUs). The Central Unit is linked to up to 32 Bay Units via optical fibers in point-to- point communication mode. The Central Unit is responsible for the protection calcul…
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PCS-915SD Distributed Busbar Relay
PCS-915SD distributed busbar relay integrates busbar differential protection, bus coupler/section protection (includes overcurrent protection, switch-onto-fault protection, dead zone fault protection, dual CTs BC/BS dead zone differential protection and breaker failure protection) and feeder protection (includes overcurrent protection, dead zone fault protection and breaker failure protection). With its flexibility and the powerful PCS-Studio configuration tool, PCS-915SD offers future-oriented busbar solutions with high investment security and low operating costs.
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