Product Details
Product Description
Product Description
What is the overhead line fault passage indicator (FPI)?
SNOVA Overhead line fault indicator is a device which provides visual or remote indication of fault in electrical distribution network. When a fault occurs，It can automatically detect whether the fault type is short circuit or ground fault. Then indicated by red mechanical flag and three ultra-bright blinking LEDs, which can be seen from 360º sight. The fault information and load current value can also be transmitted to the SCADA by 2G/3G/4G networks.
Why are FPI important in distribution networks？
In the outdoor environment, electrical networks are subject to the damage of nature throughout the year. From lighting, heavy rain, dust or even just local wildlife, these electrical networks become easy to occur faults.
When these faults occur，power outages can affect end-users and industrial areas, causing huge losses in this time, the SNOVA fault indicator plays an important role, it can help the utility attain early information on fault location and fault type, and t. Therefore, the administrator can quickly find out the cause of the fault and restore the power supply to reduce losses.
How does the FPI work?
SNOVA fault indicator ,One fault passage indicator is usually clipped onto each phase. By placing the FPI ‘s at regular intervals along the line, it can identify faults in the downstream section from its point of installation by monitoring the electromagnetic field surrounding the conductor. When fault occurs, Indicator will detect the current character, though a complicated calculation, then judge if a fault occurs, and what the fault type is. At same time, FPI sense this condition, immediately gives the alarm on-site and remotely to SCADA system.
In the case of non-communicable type, the FPI will give alarm on-site by red mechanical flag and three ultra-bright blinking LEDs.
In the case of communicable type, the FPI gives alarm on-site as well as send the data to the SCADA system by 2G/3G/4G networks.
The illustration below provides a basic of a communicable system.
SNOVA EFI Advantage:
The main aim of Overhead Line Fault Passage Indicator is to reduce the manual efforts to identify the fault type and location in power distribution networks. There is a significant reduction in the time, effort and manpower required for identifying faults.
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