FPI

SIEMENS Fault Indicators

Communicable Overhead FPI

General Specification

Parameter Specification
Rated Voltage 3.3KV to 66KV
Power Frequency 50/60 Hz
Measurement cycle period 20ms (For 50Hz)
16.5 ms (For 60Hz)
Voltage presence 70% of Rated Voltage
Voltage absence 45% of Rated Voltage
Current measurement accuracy <10% from 50A to 800A
Power source Energy harvesting + lithium thionyl chloride battery
Total Fault indication time 400 hours of LED flashing
Communication mode Short-range radio