Jun 7, 2019 · Fault Passage Indicator -FPI. FPIs are used to detect faulty cable. Fault indication on the basis of monitoring fault current through the device. FPIs can sense short circuit and earth fault currents separately. Current sensors placed on cables and earth which are used to detect phase faults (L1, L2,L3) and earth fault (E). 5.

CSFPI, Fault Passage Indicator — Earth is designed to detect and indicate Earth fault on a cable system, in RMU networks with one input / open ring arrangement. The unit will indicate a fault condition when current is detected above set trip current settings.

FPI needs to be provided in both LBS with E/F & O/C indication having in built Push Button for Reset. . Space for Installation of Energy Meters is not required. A typical three way RMU. Figure-1. In this case, the RMU has single enclosure with three functional units comprising of …

Technical specifications for 11 KV Ring Main Unit (RMU) and Feeder Remote Terminal Unit (FRTU). Includes system layout, construction, and testing.

Each new RMU shall be equipped with main-line load break switches and a fault passage indicator (FPI). Furthermore, to protect each of its lateral / transformer feeders, it shall be equipped with a corresponding set of circuit breakers and self-powered numerical relays.

The RMU shall be designed to bring all potential free contact of Circuit Breaker, Load Break Switch, Relay, FPI, VPI, Manometer/Density meter and other auxiliary equipment to marshaling box.

CSFPI-Self Powered Fault Passage Indicator is designed to detect and indicate Earth Fault and Short Circuit on a cable system in RMU networks with one input/open ring arrangement. The product is powered by the Internal Battery only.

CSFPI, Fault Passage Indicator — Earth is designed to detect and indicate Earth fault on a cable system, in RMU networks with one input / open ring arrangement. Download Brochure!

FPI is used for Phase fault and Earth Fault Detection with the help of Sensors; Selectable Phase fault Setting Range: 200-1200; Fault Passage Indicator — Earth is designed to detect and indicate Earth fault on a cable system, in RMU networks with one input / open ring arrangement

For all other configuration of RMU, FPI to be 6.10 (FPI) provided on all LBS. Wherever, there are two cables per LBS, two FPI needs to be considered for that particular LBS. CBCT Split open type suitable for mounting without 6.10. 1 Earth Fault Indicator disconnection of cable.