--- title: "#electrical-engineering articles | Hashnode" description: "Explore 136 articles tagged #electrical-engineering on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/electrical-engineering" --- Tag # #electrical-engineering 136 posts · 10 followers [electricalsteel](https://hashnode.com/@electricalsteel) · [4h ago](https://hashnode.com/posts/core-loss-estimate-non-oriented-electrical-steel-python/6af5845d7a20139e932fdfdb) ### [Estimating Core Loss for a Non-Oriented Electrical Steel Stack in Python (50W470 Example)](https://cn-electricalsteel.hashnode.dev/core-loss-estimate-non-oriented-electrical-steel-python?utm_source=hashnode&utm_medium=feed) Turn the 50W470 grade code into stack mass, lamination count and core loss with a short Python script, plus the limits of the estimate. 3 min read · [cn-electricalsteel.hashnode.dev](https://cn-electricalsteel.hashnode.dev/core-loss-estimate-non-oriented-electrical-steel-python?utm_source=hashnode&utm_medium=feed) [Unknown](https://hashnode.com/@miadtik) · [Sep 12](https://hashnode.com/posts/why-backup-generators-stall-on-motor-startup-lra/6aa597266fd3f6d7a40c25b5) ### [Why Backup Generators Stall on Motor Startup: Modeling Locked Rotor Amps (LRA) and Non-Coincident Inrush Dynamics in TypeScript](https://powerlab.hashnode.dev/why-backup-generators-stall-on-motor-startup-lra?utm_source=hashnode&utm_medium=feed) A computational breakdown of inductive motor inrush physics, generator sub-transient reactance, and non-coincident peak load modeling in clean energy backup systems. 6 min read · [powerlab.hashnode.dev](https://powerlab.hashnode.dev/why-backup-generators-stall-on-motor-startup-lra?utm_source=hashnode&utm_medium=feed) [Evgenii Konkin](https://hashnode.com/@evgeniikonkin) · [Jun 10](https://hashnode.com/posts/the-afci-mistake-that-starts-with-the-room-name/6a298b88677230f8410d2c3d) ### [The AFCI Mistake That Starts With the Room Name Instead of the Circuit](https://calcengineer.hashnode.dev/the-afci-mistake-that-starts-with-the-room-name?utm_source=hashnode&utm_medium=feed) A practical guide to checking AFCI requirements by dwelling context, circuit type, room or zone, and NEC edition before panel schedule mistakes reach inspection. 8 min read · [calcengineer.hashnode.dev](https://calcengineer.hashnode.dev/the-afci-mistake-that-starts-with-the-room-name?utm_source=hashnode&utm_medium=feed) [Evgenii Konkin](https://hashnode.com/@evgeniikonkin) · [Jun 9](https://hashnode.com/posts/duct-bank-heat-rise-fails-when-soil-dryout-is-treated-like-a-detail/6a282a38130f536996c6df21) ### [Duct Bank Heat Rise Fails When Soil Dryout Is Treated Like a Detail](https://calcengineer.hashnode.dev/duct-bank-heat-rise-fails-when-soil-dryout-is-treated-like-a-detail?utm_source=hashnode&utm_medium=feed) A practical guide to checking duct bank heat rise, soil thermal resistance, interface temperature, and dryout margin before underground cable design becomes thermally risky. 8 min read · [calcengineer.hashnode.dev](https://calcengineer.hashnode.dev/duct-bank-heat-rise-fails-when-soil-dryout-is-treated-like-a-detail?utm_source=hashnode&utm_medium=feed) [Evgenii Konkin](https://hashnode.com/@evgeniikonkin) · [Jun 8](https://hashnode.com/posts/emi-shielding-fails-when-the-material-number-is-treated/6a26909e24dad4ba81abf068) ### [EMI Shielding Fails When the Material Number Is Treated Like an Enclosure Rating](https://calcengineer.hashnode.dev/emi-shielding-fails-when-the-material-number-is-treated?utm_source=hashnode&utm_medium=feed) A practical guide to checking EMI shielding effectiveness, skin depth, absorption, reflection, and material thickness before enclosure leakage ruins the design. 7 min read · [calcengineer.hashnode.dev](https://calcengineer.hashnode.dev/emi-shielding-fails-when-the-material-number-is-treated?utm_source=hashnode&utm_medium=feed) [Evgenii Konkin](https://hashnode.com/@evgeniikonkin) · [Jun 6](https://hashnode.com/posts/antenna-gain-is-not-extra-power-it-is-a-tradeoff-engineers-must-check/6a24415346c4a7be572c3cec) ### [Antenna Gain Is Not Extra Power — It Is a Tradeoff Engineers Must Check](https://calcengineer.hashnode.dev/antenna-gain-is-not-extra-power-it-is-a-tradeoff-engineers-must-check?utm_source=hashnode&utm_medium=feed) A practical guide to calculating antenna gain from directivity and efficiency, converting dBi to dBd, and avoiding misleading RF comparisons. 5 min read · [calcengineer.hashnode.dev](https://calcengineer.hashnode.dev/antenna-gain-is-not-extra-power-it-is-a-tradeoff-engineers-must-check?utm_source=hashnode&utm_medium=feed) [Evgenii Konkin](https://hashnode.com/@evgeniikonkin) · [Jun 5](https://hashnode.com/posts/the-fiber-link-mistake-that-makes-a-good-cable-plant-fail-after-installation/6a2272b0247479036abbbb97) ### [The Fiber Link Mistake That Makes a “Good” Cable Plant Fail After Installation](https://calcengineer.hashnode.dev/the-fiber-link-mistake-that-makes-a-good-cable-plant-fail-after-installation?utm_source=hashnode&utm_medium=feed) A practical guide to checking fiber loss, connector loss, splice loss, optical power margin, and receiver overload before a cable plant fails in the field. 6 min read · [calcengineer.hashnode.dev](https://calcengineer.hashnode.dev/the-fiber-link-mistake-that-makes-a-good-cable-plant-fail-after-installation?utm_source=hashnode&utm_medium=feed) [Evgenii Konkin](https://hashnode.com/@evgeniikonkin) · [Jun 4](https://hashnode.com/posts/the-pcb-trace-width-mistake-that-burns-boards/6a218c4552349fe789033c2e) ### [The PCB Trace Width Mistake That Burns Boards After the Schematic Looks Finished](https://calcengineer.hashnode.dev/the-pcb-trace-width-mistake-that-burns-boards?utm_source=hashnode&utm_medium=feed) A practical guide to sizing PCB traces by current, temperature rise, copper weight, and layer type before a narrow power path turns into a thermal problem. 6 min read · [calcengineer.hashnode.dev](https://calcengineer.hashnode.dev/the-pcb-trace-width-mistake-that-burns-boards?utm_source=hashnode&utm_medium=feed) [Aakanksha Rathee](https://hashnode.com/@debuggingmyexistence) · [May 31](https://hashnode.com/posts/finding-my-place-between-circuits-and-code/6a1c0853800951c0172f6eee) ### [Finding My Place Between Circuits and Code](https://aakankshablogs.hashnode.dev/finding-my-place-between-circuits-and-code?utm_source=hashnode&utm_medium=feed) If you’ve ever been told that you need to choose one path and stick to it, this blog is probably not what you’d expect. If someone had told first-year me that I would spend my days studying power syst 3 min read · [aakankshablogs.hashnode.dev](https://aakankshablogs.hashnode.dev/finding-my-place-between-circuits-and-code?utm_source=hashnode&utm_medium=feed) [Evgenii Konkin](https://hashnode.com/@evgeniikonkin) · [May 29](https://hashnode.com/posts/the-busbar-sizing-mistake-that-starts-with-it-can-carry-the-amps/6a18fa847825875483579e5c) ### [The Busbar Sizing Mistake That Starts With “It Can Carry the Amps”](https://calcengineer.hashnode.dev/the-busbar-sizing-mistake-that-starts-with-it-can-carry-the-amps?utm_source=hashnode&utm_medium=feed) A practical guide to sizing copper busbars by current density and allowable temperature rise before thermal problems appear inside the electrical assembly. 5 min read · [calcengineer.hashnode.dev](https://calcengineer.hashnode.dev/the-busbar-sizing-mistake-that-starts-with-it-can-carry-the-amps?utm_source=hashnode&utm_medium=feed)