{"id":1037,"date":"2026-05-28T19:17:10","date_gmt":"2026-05-28T19:17:10","guid":{"rendered":"https:\/\/2neuron.com\/electrical-signature-analysis-esa-preview-1779995833\/"},"modified":"2026-05-28T20:06:09","modified_gmt":"2026-05-28T20:06:09","slug":"electrical-signature-analysis-esa","status":"publish","type":"post","link":"https:\/\/2neuron.com\/en\/electrical-signature-analysis-esa\/","title":{"rendered":"Electrical Signature Analysis (ESA): What It Detects"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"1037\" class=\"elementor elementor-1037 elementor-bc-flex-widget\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ef43c95 e-con-full e-flex e-con e-parent\" data-id=\"ef43c95\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-571ffcd elementor-widget elementor-widget-html\" data-id=\"571ffcd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<style>\n@import url('https:\/\/fonts.googleapis.com\/css2?family=Mohave:wght@300;400;500;600;700&display=swap');\n\n.tnesa-9f4b2a-article { background:#FFFFFF; font-family:'Mohave',Arial,sans-serif; color:#1F1135; line-height:1.65; padding:0; margin:0; }\n\n\/* Language toggle via :lang() \u2014 EN default (native\/SEO), PT via :lang(pt) *\/\n.tnesa-9f4b2a-pt { display:none; }\n.tnesa-9f4b2a-en { display:inline; }\nhtml[lang^=\"pt\"] .tnesa-9f4b2a-pt, :lang(pt) .tnesa-9f4b2a-pt { display:inline; }\nhtml[lang^=\"pt\"] .tnesa-9f4b2a-en, :lang(pt) .tnesa-9f4b2a-en { display:none; }\n.tnesa-9f4b2a-en-b { display:block; }\n.tnesa-9f4b2a-pt-b { display:none; }\nhtml[lang^=\"pt\"] .tnesa-9f4b2a-pt-b, :lang(pt) .tnesa-9f4b2a-pt-b { display:block; }\nhtml[lang^=\"pt\"] .tnesa-9f4b2a-en-b, :lang(pt) .tnesa-9f4b2a-en-b { display:none; }\n\n\/* HERO *\/\n.tnesa-9f4b2a-hero { background:linear-gradient(180deg,#F5F2FA 0%,#FFFFFF 100%); padding:120px 5% 90px; text-align:center; border-bottom:1px solid rgba(117,59,189,0.10); }\n.tnesa-9f4b2a-eyebrow { display:inline-block; font-size:13px; font-weight:700; letter-spacing:3.5px; text-transform:uppercase; color:#753BBD; margin-bottom:32px; }\n.tnesa-9f4b2a-h1 { font-size:88px; font-weight:700; line-height:1.0; color:#4E008E; margin:0 auto 30px; max-width:1140px; letter-spacing:-2px; }\n.tnesa-9f4b2a-lead { font-size:25px; font-weight:400; line-height:1.45; color:#43485A; max-width:900px; margin:0 auto 34px; }\n.tnesa-9f4b2a-meta { font-size:13px; font-weight:500; letter-spacing:1.6px; text-transform:uppercase; color:#753BBD; margin-top:14px; }\n\n\/* BODY *\/\n.tnesa-9f4b2a-body { max-width:1280px; margin:0 auto; padding:100px 5% 60px; }\n.tnesa-9f4b2a-section { display:grid; grid-template-columns:180px 1fr; gap:60px; margin-bottom:96px; align-items:start; }\n.tnesa-9f4b2a-section-num { font-size:96px; font-weight:200; line-height:1; color:rgba(117,59,189,0.18); letter-spacing:-3px; text-align:right; padding-top:6px; }\n.tnesa-9f4b2a-section-content { max-width:920px; }\n.tnesa-9f4b2a-h2 { font-size:44px; font-weight:700; line-height:1.1; color:#4E008E; margin:0 0 30px; letter-spacing:-0.7px; }\n.tnesa-9f4b2a-p { font-size:18px; font-weight:400; line-height:1.7; color:#2E2645; margin:0 0 22px; }\n.tnesa-9f4b2a-p strong { color:#4E008E; font-weight:600; }\n.tnesa-9f4b2a-p em { color:#4E008E; font-style:italic; }\n.tnesa-9f4b2a-p:last-child { margin-bottom:0; }\n\n\/* DEFINITION *\/\n.tnesa-9f4b2a-define { background:#F8F6FC; border:1px solid rgba(117,59,189,0.18); border-radius:16px; padding:30px 34px; margin:6px 0 28px; }\n.tnesa-9f4b2a-define-label { display:block; font-size:12px; font-weight:700; letter-spacing:2.5px; text-transform:uppercase; color:#753BBD; margin-bottom:12px; }\n.tnesa-9f4b2a-define p { font-size:20px; line-height:1.55; color:#2E2645; margin:0; }\n.tnesa-9f4b2a-define p strong { color:#4E008E; font-weight:700; }\n\n\/* LIST *\/\n.tnesa-9f4b2a-ul { margin:0 0 22px; padding:0; list-style:none; }\n.tnesa-9f4b2a-ul li { position:relative; padding-left:30px; font-size:18px; line-height:1.6; color:#2E2645; margin-bottom:14px; }\n.tnesa-9f4b2a-ul li::before { content:\"\"; position:absolute; left:0; top:10px; width:10px; height:10px; border-radius:50%; background:#753BBD; }\n.tnesa-9f4b2a-ul li strong { color:#4E008E; font-weight:700; }\n\n\/* PULLQUOTE *\/\n.tnesa-9f4b2a-pq { margin:46px 0 10px; padding:0 0 0 36px; border-left:4px solid #753BBD; font-size:30px; font-weight:500; line-height:1.3; color:#4E008E; max-width:840px; letter-spacing:-0.4px; }\n\n\/* FIGURE *\/\n.tnesa-9f4b2a-figure { margin:42px 0 8px; }\n.tnesa-9f4b2a-figure img { width:100%; height:auto; display:block; border-radius:16px; border:1px solid rgba(117,59,189,0.14); box-shadow:0 16px 44px rgba(78,0,142,0.10); }\n.tnesa-9f4b2a-figcap { margin-top:14px; font-size:14px; color:#753BBD; font-weight:500; text-align:center; }\n\n\/* FAULT GRID *\/\n.tnesa-9f4b2a-faultgrid { display:grid; grid-template-columns:repeat(2,1fr); gap:20px; margin-top:32px; }\n.tnesa-9f4b2a-fault { background:#FFFFFF; border:1px solid rgba(117,59,189,0.16); border-top:3px solid #753BBD; border-radius:4px 4px 14px 14px; padding:24px 26px; }\n.tnesa-9f4b2a-fault-name { display:block; font-size:20px; font-weight:700; color:#1F1135; line-height:1.25; margin-bottom:12px; }\n.tnesa-9f4b2a-fault-sig { display:inline-block; font-family:'Courier New',monospace; font-size:14px; font-weight:700; color:#4E008E; background:rgba(117,59,189,0.10); padding:6px 12px; border-radius:7px; margin-bottom:13px; }\n.tnesa-9f4b2a-fault-body { font-size:15.5px; line-height:1.6; color:#2E2645; margin:0; }\n\n\/* PUMP CALLOUT *\/\n.tnesa-9f4b2a-pump { margin-top:30px; background:linear-gradient(135deg,#4E008E,#753BBD); border-radius:18px; padding:34px 38px; color:#FFFFFF; }\n.tnesa-9f4b2a-pump-h { font-size:24px; font-weight:700; margin:0 0 8px; letter-spacing:-0.3px; }\n.tnesa-9f4b2a-pump-sub { font-size:16px; color:#E8DEF5; margin:0 0 18px; line-height:1.5; }\n.tnesa-9f4b2a-pump-ul { margin:0; padding:0; list-style:none; }\n.tnesa-9f4b2a-pump-ul li { position:relative; padding-left:26px; font-size:16px; line-height:1.55; color:#F3EEFA; margin-bottom:12px; }\n.tnesa-9f4b2a-pump-ul li::before { content:\"\"; position:absolute; left:0; top:9px; width:9px; height:9px; border-radius:50%; background:#B388D9; }\n.tnesa-9f4b2a-pump-ul li strong { color:#FFFFFF; font-weight:700; }\n\n\/* LEGEND *\/\n.tnesa-9f4b2a-legend { margin-top:24px; font-size:14px; line-height:1.7; color:#43485A; }\n.tnesa-9f4b2a-legend strong { color:#4E008E; }\n\n\/* CLOSING *\/\n.tnesa-9f4b2a-closing { margin-top:50px; padding:80px 5% 100px; background:linear-gradient(180deg,#FFFFFF 0%,#F5F2FA 100%); text-align:center; border-top:1px solid rgba(117,59,189,0.10); }\n.tnesa-9f4b2a-closing-text { font-size:34px; font-weight:500; line-height:1.3; color:#4E008E; max-width:940px; margin:0 auto 18px; letter-spacing:-0.4px; }\n.tnesa-9f4b2a-closing-coda { font-size:21px; font-weight:600; color:#1F1135; margin:28px auto 44px; }\n.tnesa-9f4b2a-cta { display:inline-block; font-size:14px; font-weight:600; letter-spacing:1.8px; text-transform:uppercase; color:#FFFFFF !important; background:#4E008E; padding:19px 50px; border-radius:999px; text-decoration:none !important; transition:background .25s ease, transform .25s ease; }\n.tnesa-9f4b2a-cta:hover { background:#753BBD; transform:translateY(-2px); color:#FFFFFF !important; }\n\n\/* RESPONSIVE *\/\n@media (max-width:1100px) {\n  .tnesa-9f4b2a-h1 { font-size:66px; letter-spacing:-1.3px; }\n  .tnesa-9f4b2a-lead { font-size:21px; }\n  .tnesa-9f4b2a-section { grid-template-columns:110px 1fr; gap:40px; }\n  .tnesa-9f4b2a-section-num { font-size:64px; }\n  .tnesa-9f4b2a-h2 { font-size:36px; }\n  .tnesa-9f4b2a-faultgrid { grid-template-columns:1fr; }\n  .tnesa-9f4b2a-closing-text { font-size:28px; }\n}\n@media (max-width:768px) {\n  .tnesa-9f4b2a-hero { padding:80px 5% 70px; }\n  .tnesa-9f4b2a-h1 { font-size:48px; letter-spacing:-1px; }\n  .tnesa-9f4b2a-lead { font-size:18px; }\n  .tnesa-9f4b2a-body { padding:70px 5% 30px; }\n  .tnesa-9f4b2a-section { grid-template-columns:1fr; gap:16px; margin-bottom:72px; }\n  .tnesa-9f4b2a-section-num { font-size:56px; text-align:left; padding-top:0; }\n  .tnesa-9f4b2a-h2 { font-size:30px; }\n  .tnesa-9f4b2a-p, .tnesa-9f4b2a-ul li { font-size:17px; }\n  .tnesa-9f4b2a-pq { font-size:24px; padding-left:22px; border-left-width:3px; }\n  .tnesa-9f4b2a-closing { padding:60px 5% 70px; }\n  .tnesa-9f4b2a-closing-text { font-size:24px; }\n}\n@media (max-width:560px) {\n  .tnesa-9f4b2a-hero { padding:60px 22px 55px; }\n  .tnesa-9f4b2a-h1 { font-size:38px; letter-spacing:-0.6px; }\n  .tnesa-9f4b2a-lead { font-size:16.5px; }\n  .tnesa-9f4b2a-body { padding:56px 22px 26px; }\n  .tnesa-9f4b2a-h2 { font-size:26px; margin-bottom:22px; }\n  .tnesa-9f4b2a-p, .tnesa-9f4b2a-ul li { font-size:16px; }\n  .tnesa-9f4b2a-define p { font-size:18px; }\n  .tnesa-9f4b2a-fault { padding:20px 20px; }\n  .tnesa-9f4b2a-pump { padding:26px 24px; }\n  .tnesa-9f4b2a-pq { font-size:20px; }\n  .tnesa-9f4b2a-closing-text { font-size:21px; }\n  .tnesa-9f4b2a-closing-coda { font-size:18px; }\n  .tnesa-9f4b2a-cta { padding:17px 38px; font-size:13px; }\n}\n<\/style>\n\n<article class=\"tnesa-9f4b2a-article\">\n\n  <header class=\"tnesa-9f4b2a-hero\">\n    <span class=\"tnesa-9f4b2a-eyebrow\"><span class=\"tnesa-9f4b2a-en\">Technical Note<\/span><span class=\"tnesa-9f4b2a-pt\">Nota T\u00e9cnica<\/span><\/span>\n    <h1 class=\"tnesa-9f4b2a-h1\"><span class=\"tnesa-9f4b2a-en\">Electrical Signature Analysis<\/span><span class=\"tnesa-9f4b2a-pt\">An\u00e1lise de Assinatura El\u00e9trica<\/span><\/h1>\n    <p class=\"tnesa-9f4b2a-lead tnesa-9f4b2a-en-b\">How the current and voltage already feeding a motor reveal the mechanical condition of the asset it drives, without a single sensor on it.<\/p>\n    <p class=\"tnesa-9f4b2a-lead tnesa-9f4b2a-pt-b\">Como a corrente e a tens\u00e3o que j\u00e1 alimentam um motor revelam o estado mec\u00e2nico do ativo que ele aciona, sem um \u00fanico sensor sobre ele.<\/p>\n    <div class=\"tnesa-9f4b2a-meta\"><span class=\"tnesa-9f4b2a-en\">ESA \u00b7 MCSA &nbsp;&middot;&nbsp; May 2026<\/span><span class=\"tnesa-9f4b2a-pt\">ESA \u00b7 MCSA &nbsp;&middot;&nbsp; Maio de 2026<\/span><\/div>\n  <\/header>\n\n  <div class=\"tnesa-9f4b2a-body\">\n\n    <!-- 01 -->\n    <section class=\"tnesa-9f4b2a-section\">\n      <div class=\"tnesa-9f4b2a-section-num\">01<\/div>\n      <div class=\"tnesa-9f4b2a-section-content\">\n        <h2 class=\"tnesa-9f4b2a-h2\"><span class=\"tnesa-9f4b2a-en\">What ESA actually is<\/span><span class=\"tnesa-9f4b2a-pt\">O que \u00e9 ESA<\/span><\/h2>\n\n        <div class=\"tnesa-9f4b2a-define\">\n          <span class=\"tnesa-9f4b2a-define-label\"><span class=\"tnesa-9f4b2a-en\">Definition<\/span><span class=\"tnesa-9f4b2a-pt\">Defini\u00e7\u00e3o<\/span><\/span>\n          <p class=\"tnesa-9f4b2a-en-b\">Electrical Signature Analysis (ESA) is an online diagnostic method that assesses the <strong>mechanical, electrical and operational<\/strong> condition of motor-driven assets by analyzing the current and voltage signals that already power them. The machine keeps running; nothing is installed on the shaft, the bearings, or the driven load. The measurement happens at the electrical panel.<\/p>\n          <p class=\"tnesa-9f4b2a-pt-b\">An\u00e1lise de Assinatura El\u00e9trica (ESA, do ingl\u00eas <em>Electrical Signature Analysis<\/em>) \u00e9 um m\u00e9todo de diagn\u00f3stico online que avalia a condi\u00e7\u00e3o <strong>mec\u00e2nica, el\u00e9trica e operacional<\/strong> de ativos acionados por motores el\u00e9tricos a partir da an\u00e1lise dos sinais de corrente e tens\u00e3o que j\u00e1 os alimentam. A m\u00e1quina segue operando; nada \u00e9 instalado no eixo, nos mancais ou na carga acionada. A medi\u00e7\u00e3o acontece no painel el\u00e9trico.<\/p>\n        <\/div>\n\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-en-b\">It helps to place ESA next to two neighboring acronyms:<\/p>\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-pt-b\">Vale posicionar a ESA ao lado de duas siglas vizinhas:<\/p>\n        <ul class=\"tnesa-9f4b2a-ul\">\n          <li><span class=\"tnesa-9f4b2a-en\"><strong>MCSA<\/strong> (Motor Current Signature Analysis) looks at the current only.<\/span><span class=\"tnesa-9f4b2a-pt\"><strong>MCSA<\/strong> (Motor Current Signature Analysis) analisa apenas a corrente.<\/span><\/li>\n          <li><span class=\"tnesa-9f4b2a-en\"><strong>ESA<\/strong> looks at current and voltage, which is what lets it separate <em>where<\/em> a problem comes from: a component dominant in the voltage spectrum is incoming from the grid; one dominant in the current spectrum is the motor or the load.<\/span><span class=\"tnesa-9f4b2a-pt\"><strong>ESA<\/strong> analisa corrente e tens\u00e3o, o que permite separar a <em>origem<\/em> de um problema: componente dominante no espectro de tens\u00e3o vem da rede; dominante no espectro de corrente, vem do motor ou da carga.<\/span><\/li>\n          <li><span class=\"tnesa-9f4b2a-en\"><strong>MCA<\/strong> (Motor Circuit Analysis) is a different, de-energized test (insulation and winding integrity), done with the machine off.<\/span><span class=\"tnesa-9f4b2a-pt\"><strong>MCA<\/strong> (Motor Circuit Analysis) \u00e9 um teste diferente, desenergizado (integridade de isola\u00e7\u00e3o e enrolamentos), feito com a m\u00e1quina desligada.<\/span><\/li>\n        <\/ul>\n\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-en-b\">2Neuron's Ultronline reads the three voltages and the three currents of the feeder, so it performs <strong>full ESA, not current-only MCSA<\/strong>. That distinction matters: with both spectra, the system can tell the maintenance team whether the fault lives in the supply, in the motor, or in the pump, fan or compressor downstream.<\/p>\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-pt-b\">O Ultronline da 2Neuron l\u00ea as tr\u00eas tens\u00f5es e as tr\u00eas correntes do alimentador, ou seja, faz <strong>ESA completa, n\u00e3o MCSA s\u00f3 de corrente<\/strong>. Essa distin\u00e7\u00e3o importa: com os dois espectros, o sistema diz ao time de manuten\u00e7\u00e3o se a falha est\u00e1 na alimenta\u00e7\u00e3o, no motor, ou na bomba, ventilador ou compressor a jusante.<\/p>\n      <\/div>\n    <\/section>\n\n    <!-- 02 -->\n    <section class=\"tnesa-9f4b2a-section\">\n      <div class=\"tnesa-9f4b2a-section-num\">02<\/div>\n      <div class=\"tnesa-9f4b2a-section-content\">\n        <h2 class=\"tnesa-9f4b2a-h2\"><span class=\"tnesa-9f4b2a-en\">Why mechanics show up in electricity<\/span><span class=\"tnesa-9f4b2a-pt\">Por que a mec\u00e2nica aparece na eletricidade<\/span><\/h2>\n\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-en-b\">An induction motor converts electrical energy into torque through the magnetic field in the <strong>air gap<\/strong>, the millimetric space between stator and rotor. That field is the bridge between the electrical and the mechanical world, and it works in both directions. Anything that disturbs the rotation, a cracked rotor bar, an off-center shaft, a worn bearing, a misaligned coupling, a clogged impeller, periodically disturbs the air-gap flux. And any disturbance in the flux is written back into the <strong>stator current<\/strong>.<\/p>\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-pt-b\">Um motor de indu\u00e7\u00e3o converte energia el\u00e9trica em torque por meio do campo magn\u00e9tico no <strong>entreferro<\/strong>, o espa\u00e7o milim\u00e9trico entre estator e rotor. Esse campo \u00e9 a ponte entre o mundo el\u00e9trico e o mec\u00e2nico, e funciona nos dois sentidos. Tudo o que perturba a rota\u00e7\u00e3o, uma barra de rotor trincada, um eixo descentralizado, um rolamento desgastado, um acoplamento desalinhado, um rotor de bomba obstru\u00eddo, perturba periodicamente o fluxo no entreferro. E qualquer perturba\u00e7\u00e3o no fluxo \u00e9 reescrita de volta na <strong>corrente do estator<\/strong>.<\/p>\n\n        <figure class=\"tnesa-9f4b2a-figure\">\n          <img decoding=\"async\" src=\"https:\/\/2neuron.com\/wp-content\/uploads\/2026\/05\/esa-physics-air-gap-flux-v1779997954.png\" alt=\"A mechanical fault modulates the air-gap flux and appears as sidebands in the stator current\" title=\"\">\n          <figcaption class=\"tnesa-9f4b2a-figcap\"><span class=\"tnesa-9f4b2a-en\">A mechanical fault modulates the air-gap flux; that modulation returns in the current as sidebands.<\/span><span class=\"tnesa-9f4b2a-pt\">Uma falha mec\u00e2nica modula o fluxo do entreferro; essa modula\u00e7\u00e3o retorna na corrente como bandas laterais.<\/span><\/figcaption>\n        <\/figure>\n\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-en-b\">The mechanism is <strong>modulation<\/strong>. A defect that repeats once per revolution, or once per ball pass, or once per rotor bar, modulates torque and flux at its own characteristic frequency. In the current spectrum this does not appear as a single new tone; it appears as <strong>sidebands<\/strong> placed symmetrically around the line frequency and its harmonics, at positions you can calculate from the machine's geometry and its slip. Each failure mode lands at its own frequency. That is the <em>signature<\/em>.<\/p>\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-pt-b\">O mecanismo \u00e9 a <strong>modula\u00e7\u00e3o<\/strong>. Um defeito que se repete a cada volta, ou a cada passagem de esfera, ou a cada barra do rotor, modula o torque e o fluxo na sua frequ\u00eancia caracter\u00edstica. No espectro de corrente isso n\u00e3o aparece como um \u00fanico tom novo; aparece como <strong>bandas laterais<\/strong> posicionadas simetricamente ao redor da frequ\u00eancia da rede e dos seus harm\u00f4nicos, em posi\u00e7\u00f5es que se calculam a partir da geometria da m\u00e1quina e do escorregamento. Cada modo de falha cai na sua pr\u00f3pria frequ\u00eancia. \u00c9 a <em>assinatura<\/em>.<\/p>\n\n        <blockquote class=\"tnesa-9f4b2a-pq\"><span class=\"tnesa-9f4b2a-en\">The motor is the sensor. The panel is the measurement point.<\/span><span class=\"tnesa-9f4b2a-pt\">O motor \u00e9 o sensor. O painel \u00e9 o ponto de medi\u00e7\u00e3o.<\/span><\/blockquote>\n      <\/div>\n    <\/section>\n\n    <!-- 03 -->\n    <section class=\"tnesa-9f4b2a-section\">\n      <div class=\"tnesa-9f4b2a-section-num\">03<\/div>\n      <div class=\"tnesa-9f4b2a-section-content\">\n        <h2 class=\"tnesa-9f4b2a-h2\"><span class=\"tnesa-9f4b2a-en\">What ESA detects<\/span><span class=\"tnesa-9f4b2a-pt\">O que a ESA detecta<\/span><\/h2>\n\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-en-b\">Each failure mode has its own spectral fingerprint. The main ones, with the position of the characteristic component:<\/p>\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-pt-b\">Cada modo de falha tem uma impress\u00e3o digital espectral pr\u00f3pria. As principais, com a posi\u00e7\u00e3o da componente caracter\u00edstica:<\/p>\n\n        <figure class=\"tnesa-9f4b2a-figure\">\n          <img decoding=\"async\" src=\"https:\/\/2neuron.com\/wp-content\/uploads\/2026\/05\/esa-current-spectrum-fault-signatures-v1779997954.png\" alt=\"Current spectrum showing fundamental and the sidebands of rotor, eccentricity and bearing faults\" title=\"\">\n          <figcaption class=\"tnesa-9f4b2a-figcap\"><span class=\"tnesa-9f4b2a-en\">One spectrum, many fingerprints: each fault at its own frequency around the line.<\/span><span class=\"tnesa-9f4b2a-pt\">Um espectro, v\u00e1rias impress\u00f5es digitais: cada falha na sua frequ\u00eancia ao redor da rede.<\/span><\/figcaption>\n        <\/figure>\n\n        <div class=\"tnesa-9f4b2a-faultgrid\">\n          <div class=\"tnesa-9f4b2a-fault\">\n            <span class=\"tnesa-9f4b2a-fault-name\"><span class=\"tnesa-9f4b2a-en\">Broken rotor bars<\/span><span class=\"tnesa-9f4b2a-pt\">Barras do rotor quebradas<\/span><\/span>\n            <p class=\"tnesa-9f4b2a-fault-body\"><span class=\"tnesa-9f4b2a-en\">Symmetric sidebands around the fundamental, spaced by twice the slip. The most established ESA diagnosis.<\/span><span class=\"tnesa-9f4b2a-pt\">Bandas laterais sim\u00e9tricas ao redor da fundamental, espa\u00e7adas de duas vezes o escorregamento. O diagn\u00f3stico mais consolidado da ESA.<\/span><\/p>\n          <\/div>\n          <div class=\"tnesa-9f4b2a-fault\">\n            <span class=\"tnesa-9f4b2a-fault-name\"><span class=\"tnesa-9f4b2a-en\">Air-gap eccentricity<\/span><span class=\"tnesa-9f4b2a-pt\">Excentricidade de entreferro<\/span><\/span>\n            <p class=\"tnesa-9f4b2a-fault-body\"><span class=\"tnesa-9f4b2a-en\">Off-center rotor, static or dynamic, bearing clearance, bent shaft.<\/span><span class=\"tnesa-9f4b2a-pt\">Rotor descentralizado, est\u00e1tico ou din\u00e2mico, folga de mancal, eixo empenado.<\/span><\/p>\n          <\/div>\n          <div class=\"tnesa-9f4b2a-fault\">\n            <span class=\"tnesa-9f4b2a-fault-name\"><span class=\"tnesa-9f4b2a-en\">Bearing defects<\/span><span class=\"tnesa-9f4b2a-pt\">Defeitos em rolamentos<\/span><\/span>\n            <p class=\"tnesa-9f4b2a-fault-body\"><span class=\"tnesa-9f4b2a-en\">Each bearing element (outer race, inner race, ball, cage) leaves its own mark. Wear and incipient failure caught without touching the bearing.<\/span><span class=\"tnesa-9f4b2a-pt\">Cada elemento do rolamento (pista externa, interna, esfera, gaiola) deixa sua marca. Desgaste e falha incipiente detectados sem tocar no mancal.<\/span><\/p>\n          <\/div>\n          <div class=\"tnesa-9f4b2a-fault\">\n            <span class=\"tnesa-9f4b2a-fault-name\"><span class=\"tnesa-9f4b2a-en\">Misalignment &amp; unbalance<\/span><span class=\"tnesa-9f4b2a-pt\">Desalinhamento e desbalanceamento<\/span><\/span>\n            <p class=\"tnesa-9f4b2a-fault-body\"><span class=\"tnesa-9f4b2a-en\">Torque oscillation once per revolution; coupling, foundation or mass problems.<\/span><span class=\"tnesa-9f4b2a-pt\">Oscila\u00e7\u00e3o de torque a cada volta; acoplamento, funda\u00e7\u00e3o ou massa.<\/span><\/p>\n          <\/div>\n          <div class=\"tnesa-9f4b2a-fault\">\n            <span class=\"tnesa-9f4b2a-fault-name\"><span class=\"tnesa-9f4b2a-en\">Stator &amp; insulation<\/span><span class=\"tnesa-9f4b2a-pt\">Estator e isola\u00e7\u00e3o<\/span><\/span>\n            <p class=\"tnesa-9f4b2a-fault-body\"><span class=\"tnesa-9f4b2a-en\">Turn-to-turn shorts and insulation degradation.<\/span><span class=\"tnesa-9f4b2a-pt\">Curto entre espiras e degrada\u00e7\u00e3o de isola\u00e7\u00e3o.<\/span><\/p>\n          <\/div>\n          <div class=\"tnesa-9f4b2a-fault\">\n            <span class=\"tnesa-9f4b2a-fault-name\"><span class=\"tnesa-9f4b2a-en\">Supply &amp; power quality<\/span><span class=\"tnesa-9f4b2a-pt\">Alimenta\u00e7\u00e3o e qualidade de energia<\/span><\/span>\n            <p class=\"tnesa-9f4b2a-fault-body\"><span class=\"tnesa-9f4b2a-en\">Harmonics, voltage unbalance, sags, read before they damage the motor.<\/span><span class=\"tnesa-9f4b2a-pt\">Harm\u00f4nicos, desequil\u00edbrio, afundamentos, lidos antes de danificar o motor.<\/span><\/p>\n          <\/div>\n        <\/div>\n\n        <div class=\"tnesa-9f4b2a-pump\">\n          <div class=\"tnesa-9f4b2a-pump-h\"><span class=\"tnesa-9f4b2a-en\">Pumps: water &amp; wastewater<\/span><span class=\"tnesa-9f4b2a-pt\">Bombas: \u00e1gua e esgoto<\/span><\/div>\n          <p class=\"tnesa-9f4b2a-pump-sub\"><span class=\"tnesa-9f4b2a-en\">Because the load is part of the signature, ESA reaches past the motor into the driven machine:<\/span><span class=\"tnesa-9f4b2a-pt\">Como a carga faz parte da assinatura, a ESA alcan\u00e7a al\u00e9m do motor, dentro da m\u00e1quina acionada:<\/span><\/p>\n          <ul class=\"tnesa-9f4b2a-pump-ul\">\n            <li><span class=\"tnesa-9f4b2a-en\"><strong>Impeller clogging and ragging<\/strong>: sidebands around the vane-pass frequency.<\/span><span class=\"tnesa-9f4b2a-pt\"><strong>Obstru\u00e7\u00e3o de rotor e ragging<\/strong>: bandas ao redor da frequ\u00eancia de passagem de p\u00e1s.<\/span><\/li>\n            <li><span class=\"tnesa-9f4b2a-en\"><strong>Cavitation<\/strong>: broadband rise and fluctuation, changes in the noise floor and the vane-pass region, with current-RMS instability.<\/span><span class=\"tnesa-9f4b2a-pt\"><strong>Cavita\u00e7\u00e3o<\/strong>: eleva\u00e7\u00e3o e flutua\u00e7\u00e3o de banda larga, mudan\u00e7as no piso de ru\u00eddo e na regi\u00e3o de p\u00e1s, com instabilidade no RMS da corrente.<\/span><\/li>\n            <li><span class=\"tnesa-9f4b2a-en\"><strong>Dry running and recirculation<\/strong>: low-frequency load modulation.<\/span><span class=\"tnesa-9f4b2a-pt\"><strong>Funcionamento a seco e recircula\u00e7\u00e3o<\/strong>: modula\u00e7\u00e3o de carga em baixa frequ\u00eancia.<\/span><\/li>\n            <li><span class=\"tnesa-9f4b2a-en\">Even <strong>submersible pumps<\/strong>, which cannot reasonably be instrumented from the outside, are diagnosed from the panel.<\/span><span class=\"tnesa-9f4b2a-pt\">At\u00e9 <strong>bombas submersas<\/strong>, que n\u00e3o podem ser razoavelmente instrumentadas por fora, s\u00e3o diagnosticadas a partir do painel.<\/span><\/li>\n          <\/ul>\n        <\/div>\n\n      <\/div>\n    <\/section>\n\n    <!-- 04 -->\n    <section class=\"tnesa-9f4b2a-section\">\n      <div class=\"tnesa-9f4b2a-section-num\">04<\/div>\n      <div class=\"tnesa-9f4b2a-section-content\">\n        <h2 class=\"tnesa-9f4b2a-h2\"><span class=\"tnesa-9f4b2a-en\">From spectrum to diagnosis: why ESA needs AI<\/span><span class=\"tnesa-9f4b2a-pt\">Do espectro ao diagn\u00f3stico: por que a ESA precisa de IA<\/span><\/h2>\n\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-en-b\">Here is the catch that keeps ESA from being a solved problem: the information is real, but it is <strong>buried<\/strong>. Fault sidebands sit 40 to 60 dB below the fundamental. At light load they crowd so close to the 60 Hz line that <strong>spectral leakage<\/strong> from that single giant peak can smear over them entirely. Slip drifts with load, so the exact sideband position moves. The operating point changes minute to minute. A human expert can read one spectrum from one motor on a good day; reading thousands of assets continuously, across changing load and speed, without drowning the team in false alarms, is not a human task.<\/p>\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-pt-b\">Aqui est\u00e1 o detalhe que impede a ESA de ser um problema resolvido: a informa\u00e7\u00e3o \u00e9 real, mas est\u00e1 <strong>enterrada<\/strong>. As bandas laterais de falha ficam 40 a 60 dB abaixo da fundamental. Em carga baixa, elas se aproximam tanto da linha de 60 Hz que o <strong>vazamento espectral<\/strong> desse \u00fanico pico gigante pode encobri-las por completo. O escorregamento varia com a carga, ent\u00e3o a posi\u00e7\u00e3o exata da banda se move. O ponto de opera\u00e7\u00e3o muda a cada minuto. Um especialista humano l\u00ea um espectro de um motor num dia bom; ler milhares de ativos continuamente, sob carga e rota\u00e7\u00e3o vari\u00e1veis, sem afogar o time em alarmes falsos, n\u00e3o \u00e9 tarefa humana.<\/p>\n\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-en-b\">This is where the method needs more than a Fourier transform. <strong>2Neuron pairs ESA with proprietary AI<\/strong> that learns the normal electrical behavior of each individual asset, tracks slip and operating point in real time so the characteristic frequencies are computed correctly, separates genuine fault growth from load noise, and prioritizes what actually deserves a work order. The physics tells you <em>where<\/em> to look; the AI is what makes looking <strong>reliable at fleet scale<\/strong>.<\/p>\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-pt-b\">\u00c9 aqui que o m\u00e9todo precisa de mais do que uma transformada de Fourier. <strong>A 2Neuron combina ESA com IA propriet\u00e1ria<\/strong> que aprende o comportamento el\u00e9trico normal de cada ativo individualmente, acompanha escorregamento e ponto de opera\u00e7\u00e3o em tempo real para calcular corretamente as frequ\u00eancias caracter\u00edsticas, separa o crescimento real de uma falha do ru\u00eddo de carga, e prioriza o que de fato merece uma ordem de servi\u00e7o. A f\u00edsica diz <em>onde<\/em> olhar; a IA \u00e9 o que torna esse olhar <strong>confi\u00e1vel na escala de uma frota<\/strong>.<\/p>\n\n        <figure class=\"tnesa-9f4b2a-figure\">\n          <img decoding=\"async\" src=\"https:\/\/2neuron.com\/wp-content\/uploads\/2026\/05\/2neuron-esa-ai-architecture.png\" alt=\"2Neuron architecture: Ultronline at the panel, Ultronlink to the cloud, proprietary AI, action in the CMMS\" title=\"\">\n          <figcaption class=\"tnesa-9f4b2a-figcap\"><span class=\"tnesa-9f4b2a-en\">From the panel to the action: ESA reads the signal, proprietary AI reads the signature.<\/span><span class=\"tnesa-9f4b2a-pt\">Do painel \u00e0 a\u00e7\u00e3o: a ESA l\u00ea o sinal, a IA propriet\u00e1ria l\u00ea a assinatura.<\/span><\/figcaption>\n        <\/figure>\n\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-en-b\">That combination, ESA as the lens and proprietary AI as the reader, is what turns a continuous stream of current and voltage into a short, trustworthy list of actions.<\/p>\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-pt-b\">Essa combina\u00e7\u00e3o, a ESA como lente e a IA propriet\u00e1ria como leitora, \u00e9 o que transforma um fluxo cont\u00ednuo de corrente e tens\u00e3o numa lista curta e confi\u00e1vel de a\u00e7\u00f5es.<\/p>\n      <\/div>\n    <\/section>\n\n    <!-- 05 -->\n    <section class=\"tnesa-9f4b2a-section\">\n      <div class=\"tnesa-9f4b2a-section-num\">05<\/div>\n      <div class=\"tnesa-9f4b2a-section-content\">\n        <h2 class=\"tnesa-9f4b2a-h2\"><span class=\"tnesa-9f4b2a-en\">How 2Neuron applies ESA + AI<\/span><span class=\"tnesa-9f4b2a-pt\">Como a 2Neuron aplica ESA + IA<\/span><\/h2>\n\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-en-b\">2Neuron turns the principle into continuous operation. The instrument is <strong>Ultronline<\/strong>, a module installed in the electrical panel, on a DIN rail, that continuously reads the three voltages and three currents of the feeder and streams the data through the <strong>Ultronlink<\/strong> gateway to the cloud. There, signal processing, statistics and <strong>proprietary AI<\/strong> convert the electrical signature into diagnosis, alarms and suggested actions, delivered to the dashboard, by email or as a work order in the CMMS.<\/p>\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-pt-b\">A 2Neuron transforma o princ\u00edpio em opera\u00e7\u00e3o cont\u00ednua. O instrumento \u00e9 o <strong>Ultronline<\/strong>, um m\u00f3dulo instalado no painel el\u00e9trico, em trilho DIN, que l\u00ea continuamente as tr\u00eas tens\u00f5es e as tr\u00eas correntes do alimentador e transmite os dados pelo gateway <strong>Ultronlink<\/strong> para a nuvem. L\u00e1, processamento de sinais, estat\u00edstica e <strong>IA propriet\u00e1ria<\/strong> convertem a assinatura el\u00e9trica em diagn\u00f3stico, alarmes e a\u00e7\u00f5es sugeridas, entregues no dashboard, por email ou como ordem de servi\u00e7o no CMMS.<\/p>\n\n        <figure class=\"tnesa-9f4b2a-figure\">\n          <img decoding=\"async\" src=\"https:\/\/2neuron.com\/wp-content\/uploads\/2026\/05\/ultronline-installed-electrical-panel.png\" alt=\"Ultronline installed on the DIN rail of a motor control panel\" title=\"\">\n          <figcaption class=\"tnesa-9f4b2a-figcap\"><span class=\"tnesa-9f4b2a-en\">Ultronline installed in a motor control panel: the instrument lives in the panel, the asset is never touched.<\/span><span class=\"tnesa-9f4b2a-pt\">Ultronline instalado em um painel de motor: o instrumento fica no painel, o ativo nunca \u00e9 tocado.<\/span><\/figcaption>\n        <\/figure>\n\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-en-b\">No accelerometer, no probe, no new cabling on the machines. The instrumentation stays in the panel and the intelligence stays in software, which makes coverage broad and the marginal cost of each new asset close to zero.<\/p>\n        <p class=\"tnesa-9f4b2a-p tnesa-9f4b2a-pt-b\">Sem aceler\u00f4metro, sem sonda, sem cabeamento novo nas m\u00e1quinas. A instrumenta\u00e7\u00e3o fica no painel e a intelig\u00eancia fica no software, o que torna a cobertura ampla e o custo marginal de cada novo ativo pr\u00f3ximo de zero.<\/p>\n\n        <div class=\"tnesa-9f4b2a-define\">\n          <span class=\"tnesa-9f4b2a-define-label\">Sabesp<\/span>\n          <p class=\"tnesa-9f4b2a-en-b\">62 pumping stations monitored from the panel, no sensors on the pumps: roughly <strong>4,374 alarms in 28 days<\/strong> and more than <strong>R$ 3M\/year<\/strong> in recoverable operational value identified, including energy losses, all without a single intrusive install.<\/p>\n          <p class=\"tnesa-9f4b2a-pt-b\">62 esta\u00e7\u00f5es de bombeamento monitoradas a partir do painel, sem sensores nas bombas: cerca de <strong>4.374 alarmes em 28 dias<\/strong> e mais de <strong>R$ 3M\/ano<\/strong> em valor operacional recuper\u00e1vel identificado, incluindo perdas energ\u00e9ticas, tudo sem uma \u00fanica instala\u00e7\u00e3o intrusiva.<\/p>\n        <\/div>\n      <\/div>\n    <\/section>\n\n  <\/div>\n\n  <footer class=\"tnesa-9f4b2a-closing\">\n    <p class=\"tnesa-9f4b2a-closing-text tnesa-9f4b2a-en-b\">The information about your machines' condition is already flowing through the cables that power them. ESA reads it; 2Neuron's AI makes it reliable; your team acts on it.<\/p>\n    <p class=\"tnesa-9f4b2a-closing-text tnesa-9f4b2a-pt-b\">A informa\u00e7\u00e3o sobre o estado das suas m\u00e1quinas j\u00e1 est\u00e1 circulando pelos cabos que as alimentam. A ESA l\u00ea essa informa\u00e7\u00e3o; a IA da 2Neuron a torna confi\u00e1vel; o seu time age sobre ela.<\/p>\n    <p class=\"tnesa-9f4b2a-closing-coda\"><span class=\"tnesa-9f4b2a-en\">Want to see what ESA + 2Neuron AI would find in your plant?<\/span><span class=\"tnesa-9f4b2a-pt\">Quer ver o que a ESA + IA da 2Neuron encontraria na sua planta?<\/span><\/p>\n    <a class=\"tnesa-9f4b2a-cta\" href=\"https:\/\/2neuron.com\/contato\/\"><span class=\"tnesa-9f4b2a-en\">Talk to 2Neuron<\/span><span class=\"tnesa-9f4b2a-pt\">Fale com a 2Neuron<\/span><\/a>\n  <\/footer>\n\n<\/article>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>How the current and voltage feeding a motor reveal its mechanical condition, with no sensor on the asset. ESA + 2Neuron AI, explained.<\/p>","protected":false},"author":6,"featured_media":1032,"comment_status":"closed","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-1037","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"_links":{"self":[{"href":"https:\/\/2neuron.com\/en\/wp-json\/wp\/v2\/posts\/1037","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/2neuron.com\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/2neuron.com\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/2neuron.com\/en\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/2neuron.com\/en\/wp-json\/wp\/v2\/comments?post=1037"}],"version-history":[{"count":2,"href":"https:\/\/2neuron.com\/en\/wp-json\/wp\/v2\/posts\/1037\/revisions"}],"predecessor-version":[{"id":1041,"href":"https:\/\/2neuron.com\/en\/wp-json\/wp\/v2\/posts\/1037\/revisions\/1041"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/2neuron.com\/en\/wp-json\/wp\/v2\/media\/1032"}],"wp:attachment":[{"href":"https:\/\/2neuron.com\/en\/wp-json\/wp\/v2\/media?parent=1037"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/2neuron.com\/en\/wp-json\/wp\/v2\/categories?post=1037"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/2neuron.com\/en\/wp-json\/wp\/v2\/tags?post=1037"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}