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Advanced Fault Passage Indicator
The Fault Passage Indicator (FPI) is an automatic device designed for installation on overhead distribution lines to monitor current and voltage parameters, detect faults, and reduce outage times. It can be mounted under live conditions using an adapter and a hot stick. Faults are indicated by six flashing LEDs in a concentrated vertebral body for enhanced visibility.
The FPI sends fault messages to the Control Centre, which then alerts the service team. It distinguishes between permanent and temporary faults and can be integrated with auto-reclosers in the network for optimized fault indication. The device measures the true virtual value of current with a 12-bit ADC, and its bidirectional RF module allows real-time current transmission. Trip current settings and reset times can be configured remotely without dismounting the FPI. A magnetic switch is used to check the operational mode and reset the device. The data collection unit can store up to 100 local events.
Features
Non-Communicable Fault Passage Indicator
Real Time Detection
Real time on line monitoring of
fault information -Transient(Temporary Faults)
Permanent Fault
​Earth Fault
Long Life
Short-circuit fault and single-phase earthed fault can be detected and indicated by three ultra-bright blinking LEDs, which can be seen from 360º sight.
Fault Indication Mode
Short-circuit fault and single-phase earthed fault can be detected and indicated by three ultra-bright blinking LEDs, which can be seen from 360º sight.
Easy installation
FPI- Clip-on type, easy installation and removal with the help of hot stick. Does not affect the running line. DCU-Installed on pole with mounting bracket and hoop.
Automatic Reset
After the fault is attended and power is restored, fault indicator will reset automatically. Reset time can be selected by the customer based on the line environment, line inspection length and department requirements.
Communicable Fault Passage Indicator
Indication of Short Fault Alarm
When a short fault occurs and the current exceeds the set value, the short sensors detect it and send signals via optical fibers to the mainframe, which then issues the corresponding alarm.
Indication of Earth Fault Alarm
The earth fault sensor measures zero sequence current, when an earth fault occurred, the current measured by the sensor exceeded the setting current.
Low-Voltage Alarm
The mainframe is battery-powered. When the battery voltage is lower than normal voltage, there is an alarm to remind operator to change the battery.
Automatic Reset
When the indicator gave alarms, it can reset itself after a setting time if there is no manually reset.
Manually Reset
When the indicator gave alarms, if the “reset/test” button on the panel is pushed and kept for 2 sec, the alarm would be cleared up.
Automatic & Test
When the indicator gave alarms, it would send out remote signal via relays, and also, it can receive remote signal to reset itself as well as the indicator can be checked by itself.
Communicable Fault Passage Indicator
Indication of Short Fault Alarm
When a short fault occurs and the current exceeds the set value, the short sensors detect it and send signals via optical fibers to the mainframe, which then issues the corresponding alarm.
Indication of Earth Fault Alarm
The earth fault sensor measures zero sequence current, when an earth fault occurred, the current measured by the sensor exceeded the setting current.
Low-Voltage Alarm
The mainframe is battery-powered. When the battery voltage is lower than normal voltage, there is an alarm to remind operator to change the battery.
Automatic Reset
When the indicator gave alarms, it can reset itself after a setting time if there is no manually reset.
Manually Reset
When the indicator gave alarms, if the “reset/test” button on the panel is pushed and kept for 2 sec, the alarm would be cleared up.
Automatic & Test
When the indicator gave alarms, it would send out remote signal via relays, and also, it can receive remote signal to reset itself as well as the indicator can be checked by itself.
