{"id":1670,"date":"2026-06-27T16:38:48","date_gmt":"2026-06-27T08:38:48","guid":{"rendered":"https:\/\/neosumk.com\/?p=1670"},"modified":"2026-06-27T21:18:37","modified_gmt":"2026-06-27T13:18:37","slug":"motor-and-permanent-magnet","status":"publish","type":"post","link":"https:\/\/osenc.com\/de\/motor-and-permanent-magnet\/","title":{"rendered":"Permanentmagnetmotor vs. Induktionsmotor: Was ist besser?"},"content":{"rendered":"\n<style>\n.osenc-magnet-article{--os-blue:#123b63;--os-deep:#0b2542;--os-cyan:#1a8a9e;--os-soft:#eef6fb;--os-line:#d9e6ef;--os-text:#1f2a37;--os-muted:#52616e;font-family:Arial,Helvetica,sans-serif;color:var(--os-text);line-height:1.72;font-size:17px;max-width:1120px;margin:0 auto;padding:0 18px 48px}.osenc-magnet-article *{box-sizing:border-box}.osenc-magnet-article a{color:var(--os-blue);font-weight:700;text-decoration:none}.osenc-magnet-article a:hover{text-decoration:underline}.osenc-hero{background:linear-gradient(135deg,var(--os-deep),var(--os-blue));color:#fff;border-radius:8px;padding:34px 30px;margin:10px 0 28px}.osenc-kicker{display:inline-block;background:rgba(26,138,158,.18);border:1px solid rgba(255,255,255,.28);padding:5px 11px;border-radius:999px;font-size:13px;letter-spacing:.03em;text-transform:uppercase;color:#d8f3f7;margin-bottom:12px}.osenc-hero p{max-width:860px;margin:10px 0 0;color:#e8f4f8}.osenc-answer{display:grid;grid-template-columns:1.15fr .85fr;gap:18px;align-items:stretch;margin:24px 0}.osenc-card{background:#fff;border:1px solid var(--os-line);border-radius:8px;padding:20px;box-shadow:0 8px 24px rgba(11,37,66,.06)}.osenc-card strong{color:var(--os-deep)}.osenc-proof{background:var(--os-soft);border-left:5px solid var(--os-cyan);padding:16px 18px;border-radius:6px;margin:18px 0}.osenc-magnet-article h2{font-size:28px;line-height:1.25;color:var(--os-deep);margin:38px 0 14px}.osenc-magnet-article h3{font-size:22px;line-height:1.35;color:var(--os-blue);margin:26px 0 10px}.osenc-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin:18px 0}.osenc-mini{background:#fff;border:1px solid var(--os-line);border-radius:8px;padding:16px}.osenc-mini b{display:block;color:var(--os-deep);margin-bottom:6px}.osenc-table-wrap{overflow-x:auto;margin:18px 0;border:1px solid var(--os-line);border-radius:8px;background:#fff}.osenc-table{width:100%;border-collapse:collapse;min-width:760px}.osenc-table th{background:var(--os-deep);color:#fff;text-align:left}.osenc-table th,.osenc-table td{padding:13px 14px;border-bottom:1px solid var(--os-line);vertical-align:top}.osenc-table tr:last-child td{border-bottom:0}.osenc-figure{margin:24px 0}.osenc-figure img{display:block;width:100%;height:auto;border-radius:8px;border:1px solid var(--os-line);background:#f7fbfd}.osenc-checklist{display:grid;grid-template-columns:repeat(2,1fr);gap:10px;margin:16px 0}.osenc-checklist li{background:var(--os-soft);border:1px solid var(--os-line);border-radius:6px;padding:10px 12px;list-style:none}.osenc-cta{background:linear-gradient(135deg,var(--os-deep),var(--os-blue));color:#fff;border-radius:8px;padding:26px;margin:34px 0}.osenc-cta p{color:#e8f4f8;max-width:820px}.osenc-btn{display:inline-block;background:var(--os-cyan);color:#fff!important;padding:11px 18px;border-radius:6px;margin-top:8px}.osenc-faq-item{border-top:1px solid var(--os-line);padding:16px 0}.osenc-faq-item h3{margin:0 0 8px}.osenc-note{font-size:15px;color:var(--os-muted)}@media(max-width:760px){.osenc-magnet-article{font-size:16px;padding:0 14px 36px}.osenc-hero{padding:26px 20px}.osenc-answer,.osenc-grid,.osenc-checklist{grid-template-columns:1fr}.osenc-magnet-article h2{font-size:24px}.osenc-magnet-article h3{font-size:20px}}\n<\/style>\n<article class=\"osenc-magnet-article\">\n  <section class=\"osenc-hero\">\n    <span class=\"osenc-kicker\">Motor Selection Guide<\/span>\n    <p><strong>A permanent magnet motor is usually the better choice when high efficiency, compact size, torque density and precise control matter most. An induction motor is usually the better choice when lower upfront cost, rugged construction, easy sourcing and standard industrial replacement matter more.<\/strong><\/p>\n    <p>The right answer depends on the full system: duty cycle, speed range, load profile, controller, cooling, working temperature, magnet material, maintenance capability and lifecycle cost.<\/p>\n  <\/section>\n\n  <figure class=\"osenc-figure \"><img loading=\"lazy\" src=\"https:\/\/osenc.com\/wp-content\/uploads\/2026\/01\/Permanent-Magnet-Motor-vs-Induction-Motor1.webp\" width=\"1200\" height=\"900\" alt=\"Permanent magnet motor vs induction motor comparison\" loading=\"lazy\" decoding=\"async\"><\/figure>\n\n  <section class=\"osenc-answer\">\n    <div class=\"osenc-card\"><strong>Quick answer:<\/strong> choose a permanent magnet motor for high efficiency, compact drive packages, robotics, servo systems, EV traction, low-speed torque and applications where magnet cost is justified by performance. Choose an induction motor for pumps, fans, compressors, conveyors, HVAC and other standard industrial systems where ruggedness and cost control dominate.<\/div>\n    <div class=\"osenc-card\"><strong>Buyer warning:<\/strong> do not compare only the motor name. Compare efficiency at your real load points, controller cost, temperature margin, available frame size, replacement needs and downtime risk.<\/div>\n  <\/section>\n\n  <div class=\"osenc-table-wrap\"><table class=\"osenc-table\"><thead><tr><th>Question<\/th><th>Usually Better Choice<\/th><th>Why It Matters<\/th><\/tr><\/thead><tbody>\n    <tr><td>Highest efficiency or torque density<\/td><td>Permanent magnet motor \/ PMSM<\/td><td>Rotor magnetic flux is supplied by magnets, which can reduce rotor electrical losses and allow a smaller package.<\/td><\/tr>\n    <tr><td>Lowest upfront cost<\/td><td>Induction motor<\/td><td>No rare-earth magnets are required and standard frames are widely available.<\/td><\/tr>\n    <tr><td>Variable speed, compact automation or servo control<\/td><td>Permanent magnet motor<\/td><td>High torque density and accurate control can justify the controller and magnet cost.<\/td><\/tr>\n    <tr><td>Pumps, fans, compressors and conveyors<\/td><td>Often induction motor<\/td><td>Standard induction motors remain practical when the duty is rugged, available and cost-sensitive.<\/td><\/tr>\n    <tr><td>High temperature or fault-sensitive operation<\/td><td>Depends<\/td><td>PM motors need magnet grade and demagnetization review; induction motors still need insulation, bearing and cooling review.<\/td><\/tr>\n  <\/tbody><\/table><\/div>\n\n  <h2 id=\"quick-comparison\">Permanent Magnet Motor vs Induction Motor: Quick Comparison<\/h2>\n  <p>The core difference is the rotor field source. A permanent magnet motor uses permanent magnets in the rotor. An induction motor uses electromagnetic induction: the stator field induces current in the rotor, and the interaction produces torque.<\/p>\n  <figure class=\"osenc-figure \"><img loading=\"lazy\" src=\"https:\/\/osenc.com\/wp-content\/uploads\/2026\/06\/pm-vs-induction-rotor-field-comparison.webp\" width=\"1200\" height=\"900\" alt=\"Permanent magnet rotor field compared with induction rotor current\" loading=\"lazy\" decoding=\"async\"><\/figure>\n  <div class=\"osenc-table-wrap\"><table class=\"osenc-table\"><thead><tr><th>Factor<\/th><th>Permanent Magnet Motor<\/th><th>Induction Motor<\/th><\/tr><\/thead><tbody>\n    <tr><td>Rotor design<\/td><td>Uses permanent magnets, often NdFeB, ferrite or SmCo depending on design goals.<\/td><td>Uses conductive rotor bars or windings where current is induced by the stator field.<\/td><\/tr>\n    <tr><td>Efficiency behavior<\/td><td>Often strong at part load and in compact high-performance designs.<\/td><td>Can be efficient near rated load, but rotor losses and slip matter.<\/td><\/tr>\n    <tr><td>Control<\/td><td>Usually requires accurate drive control and rotor-position or sensorless control strategy.<\/td><td>Can be simple in fixed-speed duty; VFDs are common for speed control.<\/td><\/tr>\n    <tr><td>Material risk<\/td><td>Magnet cost, supply, coating and demagnetization margin must be reviewed.<\/td><td>Avoids permanent magnet cost, but still depends on lamination, conductor, insulation and cooling quality.<\/td><\/tr>\n    <tr><td>Best fit<\/td><td>EVs, robotics, servo systems, compact drives, high-efficiency machines.<\/td><td>Pumps, fans, conveyors, HVAC, compressors and general industrial machinery.<\/td><\/tr>\n  <\/tbody><\/table><\/div>\n\n  <h2 id=\"efficiency\">Efficiency, Rotor Losses and Duty Cycle<\/h2>\n  <p>Permanent magnet motors can reduce rotor electrical losses because the rotor magnetic field is supplied by magnets. A U.S. Department of Energy technical support document explains that permanent magnet motors do not need rotor current to produce magnetic flux, which contributes to their high efficiency. Induction motors use rotor current, so rotor losses and heat must be considered during efficiency comparison.<\/p>\n  <figure class=\"osenc-figure \"><img loading=\"lazy\" src=\"https:\/\/osenc.com\/wp-content\/uploads\/2026\/06\/pm-vs-induction-efficiency-load-profile.webp\" width=\"1200\" height=\"900\" alt=\"Permanent magnet and induction motor efficiency load profile\" loading=\"lazy\" decoding=\"async\"><\/figure>\n  <p>This does not mean every permanent magnet motor is automatically cheaper to run. Efficiency must be evaluated at the real operating points: startup, rated load, partial load, low speed, idle periods, cooling conditions and controller behavior.<\/p>\n  <div class=\"osenc-proof\"><strong>Manufacturer insight:<\/strong> for motor magnet projects, magnet grade, coercivity, magnetization direction, rotor assembly tolerance and working temperature should be reviewed together. A strong magnet in the wrong thermal or mechanical design can still create reliability risk.<\/div>\n\n  <h2 id=\"pmsm-ac-motor\">PMSM, PM AC Motor and 3-Phase Permanent Magnet Motor<\/h2>\n  <p>Many buyers searching this topic also compare PMSM, permanent magnet AC motor and 3-phase permanent magnet motor. In practice, these searches often refer to motor families where permanent magnets are used in the rotor and the stator is driven by AC power through a controller. A PMSM runs synchronously with the stator rotating magnetic field, while an induction motor normally runs slightly below synchronous speed because slip is needed to induce rotor current and torque.<\/p>\n  <figure class=\"osenc-figure \"><img loading=\"lazy\" src=\"https:\/\/osenc.com\/wp-content\/uploads\/2026\/01\/Permanent-Magnet-Motor-vs-Induction-Motor5.webp\" width=\"1200\" height=\"900\" alt=\"Permanent magnet motor types including BLDC and PMSM\" loading=\"lazy\" decoding=\"async\"><\/figure>\n  <div class=\"osenc-grid\"><div class=\"osenc-mini\"><b>PMSM<\/b>High efficiency, precise speed control and strong torque density when matched with the right drive.<\/div><div class=\"osenc-mini\"><b>BLDC motor<\/b>Common in compact motion systems, tools, fans and electronics where electronic commutation is used.<\/div><div class=\"osenc-mini\"><b>PM AC motor<\/b>A broad buyer term that often overlaps with PMSM and other permanent-magnet AC drive designs.<\/div><\/div>\n\n  <h2 id=\"cost\">Cost: Purchase Price vs Lifecycle Cost<\/h2>\n  <p>Induction motors usually win on initial price because they do not need permanent magnets and are widely produced in standard industrial designs. Permanent magnet motors cost more when rare-earth magnets, precision rotor assembly and advanced control are required.<\/p>\n  <figure class=\"osenc-figure \"><img loading=\"lazy\" src=\"https:\/\/osenc.com\/wp-content\/uploads\/2026\/06\/lifecycle-cost-duty-cycle-review.webp\" width=\"1200\" height=\"900\" alt=\"Permanent magnet vs induction motor lifecycle cost review\" loading=\"lazy\" decoding=\"async\"><\/figure>\n  <p>For continuous-duty or space-constrained equipment, the higher initial cost of a permanent magnet motor may be justified by energy savings, smaller package size, higher torque density or better motion control. For simple, rugged and cost-sensitive equipment, an induction motor may remain the more practical choice.<\/p>\n\n  <h2 id=\"thermal\">Thermal and Demagnetization Risk<\/h2>\n  <p>Permanent magnet motors need a thermal review because magnet performance can weaken if the wrong grade is used or if operating temperature, opposing fields, mechanical stress or fault conditions exceed the design margin. NREL-indexed research on permanent magnet AC machines identifies rotor demagnetization as an important fault type, and thermal modeling is a major part of high-power-density IPM motor development.<\/p>\n  <figure class=\"osenc-figure \"><img loading=\"lazy\" src=\"https:\/\/osenc.com\/wp-content\/uploads\/2026\/06\/permanent-magnet-motor-thermal-risk-check.webp\" width=\"1200\" height=\"900\" alt=\"Permanent magnet motor thermal and demagnetization risk review\" loading=\"lazy\" decoding=\"async\"><\/figure>\n  <p>Induction motors also need thermal review. Their reliability depends on winding insulation, bearings, cooling paths, enclosure, dust, load stability and duty cycle. Heat is not only a permanent magnet motor issue; the difference is that PM motors add magnet-grade and demagnetization review to the normal motor reliability checklist.<\/p>\n  <figure class=\"osenc-figure \"><img loading=\"lazy\" src=\"https:\/\/osenc.com\/wp-content\/uploads\/2026\/01\/Permanent-Magnet-Motor-vs-Induction-Motor4.webp\" width=\"1200\" height=\"900\" alt=\"Permanent magnet motor and induction motor maintenance comparison\" loading=\"lazy\" decoding=\"async\"><\/figure>\n\n  <h2 id=\"applications\">Application-Based Recommendations<\/h2>\n  <figure class=\"osenc-figure \"><img loading=\"lazy\" src=\"https:\/\/osenc.com\/wp-content\/uploads\/2026\/01\/Permanent-Magnet-Motor-vs-Induction-Motor2.webp\" width=\"1200\" height=\"900\" alt=\"Permanent magnet motor and induction motor application comparison\" loading=\"lazy\" decoding=\"async\"><\/figure>\n  <div class=\"osenc-table-wrap\"><table class=\"osenc-table\"><thead><tr><th>Application<\/th><th>Common Choice<\/th><th>Selection Logic<\/th><\/tr><\/thead><tbody>\n    <tr><td>Electric vehicles and compact traction drives<\/td><td>Permanent magnet motor \/ PMSM<\/td><td>High torque density, compact size and efficiency can be valuable.<\/td><\/tr>\n    <tr><td>Robotics, servo systems and automation<\/td><td>Permanent magnet motor<\/td><td>Precise control, fast response and compact design often matter.<\/td><\/tr>\n    <tr><td>Pumps, fans, compressors and HVAC<\/td><td>Often induction motor<\/td><td>Ruggedness, standard availability and lower upfront cost may dominate.<\/td><\/tr>\n    <tr><td>Conveyors and general industrial machinery<\/td><td>Often induction motor<\/td><td>Easy sourcing, maintenance familiarity and standard frames are useful.<\/td><\/tr>\n    <tr><td>High-efficiency custom equipment<\/td><td>Depends<\/td><td>Compare lifecycle energy cost, motor size, controller, duty cycle and magnet risk.<\/td><\/tr>\n  <\/tbody><\/table><\/div>\n  <figure class=\"osenc-figure \"><img loading=\"lazy\" src=\"https:\/\/osenc.com\/wp-content\/uploads\/2026\/01\/Permanent-Magnet-Motor-vs-Induction-Motor3.webp\" width=\"1200\" height=\"900\" alt=\"Induction motor industrial application comparison\" loading=\"lazy\" decoding=\"async\"><\/figure>\n\n  <h2 id=\"motor-magnet-design\">How Motor Magnet Design Affects PM Motor Performance<\/h2>\n  <p>For permanent magnet motors, the magnet is not just a material choice. The motor designer must review magnetic grade, remanence, coercivity, temperature class, coating, shape, tolerance, magnetization direction, air gap, rotor retention and assembly method.<\/p>\n  <figure class=\"osenc-figure \"><img loading=\"lazy\" src=\"https:\/\/osenc.com\/wp-content\/uploads\/2026\/01\/Permanent-Magnet-Motor-vs-Induction-Motor6.webp\" width=\"1200\" height=\"900\" alt=\"Permanent magnet motor magnet material comparison\" loading=\"lazy\" decoding=\"async\"><\/figure>\n  <h3>Magnet grade and coercivity<\/h3>\n  <p>Higher magnetic strength can help torque density, but the grade must match the motor temperature and demagnetizing field risk. Higher coercivity may be needed when the motor faces high temperature, fault current, aggressive field weakening or demanding duty cycles.<\/p>\n  <h3>Shape, tolerance and air gap<\/h3>\n  <p>Arc magnet thickness, width, chamfer and length tolerance can influence flux distribution, air gap uniformity, cogging torque, vibration, assembly yield and coating damage risk.<\/p>\n  <figure class=\"osenc-figure \"><img loading=\"lazy\" src=\"https:\/\/osenc.com\/wp-content\/uploads\/2026\/06\/magnet-shape-tolerance-effects-motor.webp\" width=\"1200\" height=\"900\" alt=\"Motor magnet shape and tolerance effects\" loading=\"lazy\" decoding=\"async\"><\/figure>\n  <p>OSENC can support custom motor magnet requirements including NdFeB magnet grade selection, coating review, magnetization direction, arc magnet shape, rotor assembly tolerance and sample-to-production communication.<\/p>\n\n  <h2 id=\"selection-flow\">How to Choose: A Practical Decision Flow<\/h2>\n  <figure class=\"osenc-figure \"><img loading=\"lazy\" src=\"https:\/\/osenc.com\/wp-content\/uploads\/2026\/06\/motor-selection-decision-flow.webp\" width=\"1200\" height=\"900\" alt=\"Motor selection decision flow for permanent magnet vs induction motor\" loading=\"lazy\" decoding=\"async\"><\/figure>\n  <ul class=\"osenc-checklist\">\n    <li>Define torque, power, speed range and duty cycle.<\/li>\n    <li>Compare efficiency at real load points, not only rated load.<\/li>\n    <li>Include motor, controller, cooling, maintenance and downtime cost.<\/li>\n    <li>Check working temperature, enclosure, dust, corrosion and vibration.<\/li>\n    <li>For PM motors, review magnet grade, coating and demagnetization margin.<\/li>\n    <li>For induction motors, review insulation, bearings, cooling and frame availability.<\/li>\n  <\/ul>\n\n  <h2 id=\"rfq\">RFQ Checklist for Custom Motor Magnets<\/h2>\n  <p>If your project uses permanent magnets in a rotor, prepare the information below before asking for a custom quotation. This helps reduce back-and-forth and makes the magnet design discussion more realistic.<\/p>\n  <figure class=\"osenc-figure \"><img loading=\"lazy\" src=\"https:\/\/osenc.com\/wp-content\/uploads\/2026\/06\/motor-magnet-rfq-checklist.webp\" width=\"1200\" height=\"900\" alt=\"Custom motor magnet RFQ checklist\" loading=\"lazy\" decoding=\"async\"><\/figure>\n  <ul class=\"osenc-checklist\">\n    <li>Motor type: PMSM, BLDC, PM DC, generator or custom assembly.<\/li>\n    <li>Target torque, power, speed range and duty cycle.<\/li>\n    <li>Working temperature and peak temperature exposure.<\/li>\n    <li>Magnet material preference: NdFeB, SmCo or ferrite.<\/li>\n    <li>Drawing, sample, rotor slot geometry or target magnet shape.<\/li>\n    <li>Magnetization direction, coating, tolerance and inspection needs.<\/li>\n    <li>Prototype quantity, production quantity and delivery target.<\/li>\n    <li>Any corrosion, washdown, vibration or safety constraints.<\/li>\n  <\/ul>\n\n  <section class=\"osenc-cta\"><h2 id=\"custom-motor-magnets\">Need Custom Magnets for a Permanent Magnet Motor?<\/h2><p>OSENC can provide similar custom magnet solutions based on your drawing, sample, application environment, performance target and test requirements. Share your motor type, rotor design, magnet shape, grade target, coating requirement and working temperature so the magnet design can be reviewed properly.<\/p><a class=\"osenc-btn\" href=\"https:\/\/osenc.com\/contact-us\/\">Contact OSENC for Motor Magnet Support<\/a><\/section>\n\n  <h2 id=\"faq\">FAQ<\/h2>\n  <div class=\"osenc-faq-item\"><h3>What is the main difference between a permanent magnet motor and an induction motor?<\/h3><p>A permanent magnet motor uses magnets in the rotor to create the rotor magnetic field. An induction motor uses current induced in the rotor, so it normally operates with slip. This changes efficiency, torque density, cost, control needs and thermal behavior.<\/p><\/div><div class=\"osenc-faq-item\"><h3>Is a permanent magnet motor more efficient than an induction motor?<\/h3><p>Often, yes, especially in compact, variable-speed or part-load applications. The final result still depends on motor design, controller, cooling, load profile and operating hours.<\/p><\/div><div class=\"osenc-faq-item\"><h3>Why are induction motors usually cheaper?<\/h3><p>Standard induction motors do not require rare-earth permanent magnets and are available in many standard industrial frames. Their lower purchase price can be attractive when size and part-load efficiency are not the main constraints.<\/p><\/div><div class=\"osenc-faq-item\"><h3>Do induction motors have permanent magnets?<\/h3><p>Standard induction motors do not use permanent magnets. Their rotor magnetic field is produced by electromagnetic induction from the stator field.<\/p><\/div><div class=\"osenc-faq-item\"><h3>Which motor type is better for EVs or robotics?<\/h3><p>Permanent magnet motors or PMSMs are often preferred when high torque density, compact size, low-speed torque and precise control are important. Some systems still use induction motors to reduce rare-earth dependence or balance cost and operating behavior.<\/p><\/div><div class=\"osenc-faq-item\"><h3>What information should I send for custom motor magnets?<\/h3><p>Send the motor type, target torque or power, speed range, working temperature, rotor drawing, magnet shape, tolerance, magnetization direction, coating requirement, corrosion risk and prototype or production quantity.<\/p><\/div>\n\n  <h2 id=\"evidence-notes\">Evidence and Trust Notes<\/h2>\n  <p class=\"osenc-note\">This refreshed article uses cautious engineering language. External public sources are used only to support general technical background, not as OSENC verified test data or OSENC customer cases. Useful references include the U.S. Department of Energy electric motor technical support document, DOE electric motor R&amp;D notes, NREL-indexed permanent magnet AC machine research, and EU Regulation 2019\/1781 on electric motor efficiency requirements.<\/p>\n<\/article>\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"Article\", \"headline\": \"Permanent Magnet Motor vs Induction Motor: Which Is Better?\", \"description\": \"Compare permanent magnet motors and induction motors by efficiency, cost, torque density, control, thermal risk, applications and custom motor magnet RFQ needs.\", \"author\": {\"@type\": \"Person\", \"name\": \"Ben\"}, \"publisher\": {\"@type\": \"Organization\", \"name\": \"OSENC\", \"url\": \"https:\/\/osenc.com\/\"}, \"mainEntityOfPage\": {\"@type\": \"WebPage\", \"@id\": \"https:\/\/osenc.com\/motor-and-permanent-magnet\/\"}}<\/script>\n<script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the main difference between a permanent magnet motor and an induction motor?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A permanent magnet motor uses magnets in the rotor to create the rotor magnetic field. 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The right answer depends on the full system: duty [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":6728,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[53],"tags":[],"class_list":["post-1670","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-applcation"],"_links":{"self":[{"href":"https:\/\/osenc.com\/de\/wp-json\/wp\/v2\/posts\/1670","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/osenc.com\/de\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/osenc.com\/de\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/osenc.com\/de\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/osenc.com\/de\/wp-json\/wp\/v2\/comments?post=1670"}],"version-history":[{"count":6,"href":"https:\/\/osenc.com\/de\/wp-json\/wp\/v2\/posts\/1670\/revisions"}],"predecessor-version":[{"id":8255,"href":"https:\/\/osenc.com\/de\/wp-json\/wp\/v2\/posts\/1670\/revisions\/8255"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/osenc.com\/de\/wp-json\/wp\/v2\/media\/6728"}],"wp:attachment":[{"href":"https:\/\/osenc.com\/de\/wp-json\/wp\/v2\/media?parent=1670"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/osenc.com\/de\/wp-json\/wp\/v2\/categories?post=1670"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/osenc.com\/de\/wp-json\/wp\/v2\/tags?post=1670"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}