TIDA-00807

Fault Monitoring for Overhead Fault Indicators using Ultra Low Power Reference Design

TIDA-00807

Design files

Overview

Fault Indicators (FI) are devices installed at certain distance on overhead power lines in electric power distribution networks to detect and indicate the occurence of faults. The benefit is reduction in outage times by identifying the fault zone easily. The TIDA-00807 reference design features an ultra‐low power MCU and discrete analog front end to monitor and measure the current and voltage parameters where it is installed.In addition, a self‐test mechanism comprising of a DAC and Hall Switch can be configured to execute a diagnostic program that permits the system to test itself.

Features

Current voltage measurement range: 0.5-100A, 50-300V
Measurement accuracy: ≤±2%
Multiple gain stage and ADC channels used for covering wide curent and voltage range
Dual rail, configurable DC-DC converter (with integrated load switch) adds flexibility with power savings
MCU selected based on ultra-low power consumption, small pin count and footprint
Self test - fault current simulation using DAC and self test magnet detection using hall switch

Industrial

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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

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Design guide — TIDA-00807

TIDUBY5A.PDF (1487 K)

Reference design overview and verified performance test data

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Schematic — TIDA-00807

TIDRMJ9.PDF (797 K)

Detailed schematic diagram for design layout and components

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Bill of materials (BOM) — TIDA-00807

TIDRMK0.PDF (102 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

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Assembly drawing — TIDA-00807

TIDRMK1.PDF (216 K)

Detailed overview of design layout for component placement

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CAD/CAE symbol — TIDA-00807

TIDRMK3.ZIP (2091 K)

Files used for 3D models or 2D drawings of IC components

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Gerber file — TIDA-00807

TIDCCD2.ZIP (399 K)

Design file that contains information on physical board layer of design PCB

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PCB layout — TIDA-00807

TIDRMK2.PDF (183 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

MSP430 microcontrollers

MSP430FR5728 — 8 MHz MCU with 16KB FRAM, 1KB SRAM, 10-bit ADC , comparator, UART/SPI/I2C, timer

Data sheet: PDF | HTML

Analog switches & muxes

SN74LVC1G3157 — 5-V, 2:1 (SPDT), 1-channel general-purpose analog switch

Data sheet: PDF | HTML

Buck converters (integrated switch)

TPS62740 — 2.2V-5.5V input, ultra-low-power 300mA step-down buck DCDC converter with 360nA Iq

Data sheet: PDF | HTML

Hall-effect latches & switches

DRV5032 — Low power (5 Hz, <1µA), low voltage (up to 5.5V) switch

Data sheet: PDF | HTML

Precision DACs (≤10 MSPS)

DAC101C081 — 10-Bit Micro Power Digital-to-Analog Converter with an I2C-Compatible Interface

Data sheet: PDF | HTML

Precision op amps (Vos<1mV)

OPA2317 — Dual, Low Offset, Rail-to-Rail I/O Operational Amplifier

Data sheet: PDF | HTML

Shunt voltage references

LM4041-N — Fixed & adjustable, 45-µA, precision micropower shunt voltage reference

Data sheet: PDF

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Software

Support software

TIDCCD3 — TIDA-00807 OH Fault Indicator Software

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TIDCCD3 — TIDA-00807 OH Fault Indicator Software

Latest version

Version: 01.00.00.0A

Release date: 06 Dec 2016

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TIDA-00807 OH Fault Indicator Software (zip) — 1246 K

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Technical documentation

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	Type	Title		Date
*	Design guide	Fault Monitoring for Overhead Fault Indicators Ultra-Low-Power Design Guide (Rev. A)		May 19, 2017
	Technical article	Benefits of using Sub-1 GHz connectivity for grid asset monitoring, protection and control		May 28, 2020

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