Self or Dual-Powered Supply for Protection Relay, MCCBs & ACBs Ref Design

(ACTIVE) TIDA-00229

Description & Features

Technical Documents

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Key Document

Description

This power supply solution for Protection Relays & MCCBs handles both the current input from a Current Transformer (CT) or input from an Auxillary (Aux) source. The "self-powered" capability comes from being able to harness the power available in the grid through the CT. The flexibility of this solution's "dual-power" input comes from the ability to also handle the Aux input - which is often a battery source.

Features
  • Higher shunt regulation voltage reduces power loss and improves efficiency
  • Provides option for customer to use a CT with lower VA to reduce size of the product/transformer
  • Excellent load transient performance and very sharp turn-on characteristic
  • Simple and cost-effective electrical surge-protection circuitry for a wide range of applications

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  



Schematic/Block Diagram

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Design Files

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Bill of Materials (BOM)

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Part Number Status

TIDA-00229:
Self or Dual-Powered Supply for Protection Relay, MCCBs & ACBs

ACTIVE

TI Devices (2)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM293  Dual Differential Comparator  Amplifiers  Sample & Buy Not Available
LM5017  7.5-100V Wide Vin, 600mA Constant On-Time Synchronous Buck Regulator  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM293 Download Download
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LM5017 Download Download
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Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 1903 28 Apr 2014 5
Design files (4)
Title Abstract Type Size (KB) Date Views
ZIP 819 27 Jun 2014 4
ZIP 1524 27 Jun 2014 10
PDF 107 27 Jun 2014 3
PDF 370 27 Jun 2014 7

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