---
title: "Discussion on \"A Practical Engineer's Guide to CT Burden: Avoiding Metering Errors and Relay Misoperation\" | Hashnode"
description: "Discussion on \"A Practical Engineer's Guide to CT Burden: Avoiding Metering Errors and Relay Misoperation\". A 5 A CT secondary circuit with 200 ft of #10 AWG wire and a single relay can easily exceed 10 VA burden — enough to push a C100 CT into saturation, causing relay misoperation or meter errors that go unnoticed until a fault occurs. Getting burden rig..."
url: "https://hashnode.com/posts/a-practical-engineers-guide-to-ct-burden-avoiding-metering-errors-and-relay-misoperation/69ee0ca79000a3486f543d78"
---

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# [A Practical Engineer's Guide to CT Burden: Avoiding Metering Errors and Relay Misoperation](https://calcengineer.hashnode.dev/a-practical-engineers-guide-to-ct-burden-avoiding-metering-errors-and-relay-misoperation?utm_source=hashnode&utm_medium=feed)

A 5 A CT secondary circuit with 200 ft of #10 AWG wire and a single relay can easily exceed 10 VA burden — enough to push a C100 CT into saturation, causing relay misoperation or meter errors that go unnoticed until a fault occurs. Getting burden rig...

Apr 26 · 3 min read · calcengineer.hashnode.dev  
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-   [#ctburden](https://hashnode.com/tag/ctburden)
-   [#currenttransformerburden](https://hashnode.com/tag/currenttransformerburden)
-   [#secondarycircuit](https://hashnode.com/tag/secondarycircuit)
-   [#protectionaccuracy](https://hashnode.com/tag/protectionaccuracy)
-   [#metering](https://hashnode.com/tag/metering)

## Written by

[Evgenii Konkin](https://hashnode.com/@evgeniikonkin)

@evgeniikonkin · Los Angeles, USA

  
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Civil & Mechanical Engineer · Building engineering calculators at calcengineer.com

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