{"id":160,"date":"2026-07-08T08:51:59","date_gmt":"2026-07-08T08:51:59","guid":{"rendered":"https:\/\/industrialelectricmotor.net\/?p=160"},"modified":"2026-07-08T08:51:59","modified_gmt":"2026-07-08T08:51:59","slug":"how-to-troubleshoot-electric-motor-failures","status":"publish","type":"post","link":"https:\/\/industrialelectricmotor.net\/sk\/how-to-troubleshoot-electric-motor-failures\/","title":{"rendered":"Ako rie\u0161i\u0165 poruchy elektromotora"},"content":{"rendered":"
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Korea Ever-Power \u00b7 Sprievodca \u00fadr\u017ebou \u00b7 Diagnostika por\u00fach<\/span><\/p>\n

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Ako rie\u0161i\u0165 poruchy elektromotora:
\n10 be\u017en\u00fdch probl\u00e9mov a ich pr\u00ed\u010diny<\/span><\/h1>\n

V\u00e4\u010d\u0161ina por\u00fach elektromotorov poskytuje v\u010dasn\u00e9 varovanie prostredn\u00edctvom merate\u013en\u00fdch zmien pr\u00fadu, vibr\u00e1ci\u00ed, teploty alebo hluku e\u0161te predt\u00fdm, ako motor skuto\u010dne zlyh\u00e1. Rozpoznanie t\u00fdchto v\u010dasn\u00fdch sign\u00e1lov a presn\u00e1 identifik\u00e1cia ich z\u00e1kladnej pr\u00ed\u010diny umo\u017e\u0148uje t\u00edmom \u00fadr\u017eby opravi\u0165 probl\u00e9my pred nepl\u00e1novan\u00fdm odstaven\u00edm. T\u00e1to pr\u00edru\u010dka pokr\u00fdva 10 najbe\u017enej\u0161\u00edch probl\u00e9mov s elektromotormi, ktor\u00e9 sa vyskytuj\u00fa v trojf\u00e1zov\u00fdch asynchr\u00f3nnych motoroch, ich diagnostick\u00e9 indik\u00e1tory a n\u00e1pravn\u00e9 opatrenia, ktor\u00e9 ich rie\u0161ia.<\/p>\n

Prehriatie<\/span>
\nPorucha lo\u017eiska<\/span>
\nVibr\u00e1cie<\/span>
\nIzol\u00e1cia vinutia<\/span>
\nStrata f\u00e1zy<\/span><\/div>\n<\/div>\n<\/div>\n

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\u010c\u00edslo 01<\/div>\n
Motor sa nena\u0161tartuje<\/div>\n<\/div>\n
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\u010c\u00edslo 02<\/div>\n
Prehriatie<\/div>\n<\/div>\n
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\u010c\u00edslo 03<\/div>\n
Nadmern\u00e9 vibr\u00e1cie<\/div>\n<\/div>\n
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\u010c\u00edslo 04<\/div>\n
Hlu\u010dn\u00e9 lo\u017eisk\u00e1<\/div>\n<\/div>\n
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\u010c\u00edslo 05<\/div>\n
Nerovnov\u00e1ha f\u00e1zov\u00e9ho pr\u00fadu<\/div>\n<\/div>\n
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\u010c\u00edslo 06<\/div>\n
N\u00edzky izola\u010dn\u00fd odpor<\/div>\n<\/div>\n
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\u010c\u00edslo 07<\/div>\n
Motor be\u017e\u00ed pomaly<\/div>\n<\/div>\n
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\u010c\u00edslo 08<\/div>\n
Zn\u00ed\u017een\u00fd rozbehov\u00fd kr\u00fatiaci moment<\/div>\n<\/div>\n
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\u010c\u00edslo 09<\/div>\n
Oper\u00e1cia pri v\u00fdpadku f\u00e1zy<\/div>\n<\/div>\n
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\u010c\u00edslo 10<\/div>\n
\u00danik tesnenia hriade\u013ea<\/div>\n<\/div>\n<\/div>\n

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\"Kontrola<\/p>\n
Kontrola a testovanie kvality \u2013 systematick\u00e9 meranie pr\u00fadovej bilancie, izola\u010dn\u00e9ho odporu, vibr\u00e1ci\u00ed a teploty lo\u017e\u00edsk v pravideln\u00fdch intervaloch je najefekt\u00edvnej\u0161ou strat\u00e9giou rie\u0161enia probl\u00e9mov s elektromotormi, ktor\u00e1 odhal\u00ed vznikaj\u00face poruchy sk\u00f4r, ako sp\u00f4sobia nepl\u00e1novan\u00e9 prestoje.<\/div>\n<\/div>\n

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Predt\u00fdm, ako za\u010dnete rie\u0161i\u0165 probl\u00e9my<\/div>\n

Pred za\u010dat\u00edm ak\u00fdchko\u013evek pr\u00e1c na odstra\u0148ovan\u00ed por\u00fach elektromotora odpojte motor od elektrick\u00e9ho nap\u00e1jania pomocou lok\u00e1lneho vyp\u00edna\u010da a pou\u017eite postup zablokovania\/ozna\u010denia (LOTO). Skontrolujte izol\u00e1ciu pomocou sk\u00fa\u0161a\u010dky nap\u00e4tia na svork\u00e1ch motora. Pred pr\u00e1cou v bl\u00edzkosti krytu ventil\u00e1tora alebo svorkovnice nechajte r\u00e1m motora vychladn\u00fa\u0165 na bezpe\u010dn\u00fa dotykov\u00fa teplotu. V\u0161etky merania vy\u017eaduj\u00face prev\u00e1dzku motora by sa mali vykon\u00e1va\u0165 s vhodn\u00fdmi OOP a pod\u013ea mo\u017enosti s odpojenou poh\u00e1\u0148anou z\u00e1\u0165a\u017eou.<\/p>\n<\/div>\n<\/div>\n

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10 be\u017en\u00fdch probl\u00e9mov s elektromotormi a ich rie\u0161enia<\/h2>\n

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01<\/div>\n
Motor sa nena\u0161tartuje<\/div>\n<\/div>\n
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Mo\u017en\u00e9 pr\u00ed\u010diny<\/div>\n
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  • \u017diadne nap\u00e1jacie nap\u00e4tie na svork\u00e1ch motora (prep\u00e1len\u00e1 poistka, otvoren\u00fd isti\u010d)<\/li>\n
  • Nespr\u00e1vne zapojenie svoriek (nap\u00e1janie pripojen\u00e9 k nespr\u00e1vnym svork\u00e1m)<\/li>\n
  • Nap\u00e1jacie nap\u00e4tie je pr\u00edli\u0161 n\u00edzke na vytvorenie dostato\u010dn\u00e9ho \u0161tartovacieho kr\u00fatiaceho momentu<\/li>\n
  • Rel\u00e9 pre\u0165a\u017eenia sa vyplo a neresetovalo sa<\/li>\n
  • Zaseknut\u00e9 lo\u017eisko br\u00e1niace ot\u00e1\u010daniu hriade\u013ea<\/li>\n
  • Mechanicky zablokovan\u00e9 alebo zablokovan\u00e9 poh\u00e1\u0148an\u00e9 bremeno<\/li>\n<\/ul>\n<\/div>\n
    \n
    Diagnostick\u00e9 kroky<\/div>\n

    Zmerajte nap\u00e1jacie nap\u00e4tie na svork\u00e1ch motora, ke\u010f je motor v stave \u0161tartovacieho pr\u00edkazu. Skontrolujte, \u010di s\u00fa v\u0161etky tri f\u00e1zy pr\u00edtomn\u00e9 a \u010di s\u00fa v r\u00e1mci menovit\u00e9ho nap\u00e4tia 5%. Skontrolujte stav pre\u0165a\u017eovacieho rel\u00e9 a v pr\u00edpade aktiv\u00e1cie ho resetujte. Sk\u00faste ru\u010dne ot\u00e1\u010da\u0165 hriade\u013eom s izolovan\u00fdm nap\u00e1jan\u00edm \u2013 odpor nazna\u010duje mechanick\u00e9 zaseknutie. Zmerajte izola\u010dn\u00fd odpor, aby ste vyl\u00fa\u010dili skrat vinutia.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

    <\/p>\n

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    \n
    02<\/div>\n
    Prehriatie \u2013 r\u00e1m motora je pr\u00edli\u0161 hor\u00faci na dotyk<\/div>\n<\/div>\n
    \n
    \n
    Mo\u017en\u00e9 pr\u00ed\u010diny<\/div>\n
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    • Motor pre\u0165a\u017een\u00fd nad menovit\u00e9 hodnoty na \u0161t\u00edtku<\/li>\n
    • Chladiace rebr\u00e1 zanesen\u00e9 prachom alebo ne\u010distotami<\/li>\n
    • Teplota okolia nad menovit\u00fdm maximom (typicky 40 \u00b0C)<\/li>\n
    • Po\u0161koden\u00fd kryt ventil\u00e1tora, \u010do obmedzuje pr\u00fadenie vzduchu<\/li>\n
    • Nerovnov\u00e1ha nap\u00e1jacieho nap\u00e4tia sp\u00f4sobuj\u00faca nerovnomern\u00e9 f\u00e1zov\u00e9 pr\u00fady<\/li>\n
    • \u010cast\u00e9 \u0161tartovacie cykly prekra\u010duj\u00face tepeln\u00fa kapacitu<\/li>\n<\/ul>\n<\/div>\n
      \n
      Diagnostick\u00e9 kroky<\/div>\n

      Zmerajte v\u0161etky tri f\u00e1zov\u00e9 pr\u00fady pomocou klie\u0161\u0165ov\u00e9ho multimetra. Ak ktor\u00fdko\u013evek pr\u00fad prekro\u010d\u00ed hodnotu uveden\u00fa na \u0161t\u00edtku, za\u0165a\u017eenie je pr\u00edli\u0161 vysok\u00e9. Zmerajte f\u00e1zov\u00e9 nap\u00e4tia nap\u00e1jania \u2013 nevyv\u00e1\u017eenos\u0165 nad 2% sp\u00f4sobuje v\u00fdrazn\u00e9 prehriatie. Vy\u010distite chladiace rebr\u00e1 stla\u010den\u00fdm vzduchom. Zmerajte teplotu okolia pri vstupe vzduchu do motora. Skontrolujte kryt ventil\u00e1tora, \u010di nie je upchat\u00fd alebo po\u0161koden\u00fd.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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      \n
      \n
      03<\/div>\n
      Nadmern\u00e9 vibr\u00e1cie<\/div>\n<\/div>\n
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      \n
      Mo\u017en\u00e9 pr\u00ed\u010diny<\/div>\n
        \n
      • Nes\u00faosos\u0165 hriade\u013ea s poh\u00e1\u0148an\u00fdm strojom<\/li>\n
      • Nevyv\u00e1\u017een\u00e1 spojka alebo kladka<\/li>\n
      • Uvo\u013enen\u00e9 upev\u0148ovacie skrutky (motor alebo poh\u00e1\u0148an\u00fd stroj)<\/li>\n
      • Opotrebovan\u00e9 alebo po\u0161koden\u00e9 lo\u017eisk\u00e1<\/li>\n
      • Ohnut\u00fd hriade\u013e v d\u00f4sledku mechanick\u00e9ho n\u00e1razu<\/li>\n
      • Rezonancia z\u00e1kladu pri prev\u00e1dzkovej frekvencii<\/li>\n<\/ul>\n<\/div>\n
        \n
        Diagnostick\u00e9 kroky<\/div>\n

        Zmerajte r\u00fdchlos\u0165 vibr\u00e1ci\u00ed na oboch lo\u017eiskov\u00fdch teles\u00e1ch aj na z\u00e1kladnej doske. R\u00fdchlos\u0165 vibr\u00e1ci\u00ed nad 2,8 mm\/s RMS (IEC 60034-14 stupe\u0148 A) si vy\u017eaduje vy\u0161etrenie. Ak sa vibr\u00e1cie zn\u00ed\u017eia po odpojen\u00ed z\u00e1\u0165a\u017ee, pravdepodobn\u00fdm zdrojom je poh\u00e1\u0148an\u00fd stroj alebo spojka. Anal\u00fdza frekven\u010dn\u00e9ho spektra identifikuje dominantn\u00fa frekvenciu \u2013 1x ot.\/min. nazna\u010duje nevyv\u00e1\u017eenos\u0165 alebo nespr\u00e1vne s\u00faosie; 2x ot.\/min. nazna\u010duje uhlov\u00e9 nespr\u00e1vne s\u00faosie alebo probl\u00e9my so spojkou.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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        \n
        04<\/div>\n
        Hlu\u010dn\u00e9 lo\u017eisk\u00e1 \u2013 \u0161kr\u00edpanie, p\u00edskanie alebo dunenie<\/div>\n<\/div>\n
        \n
        \n
        Zvuk a pravdepodobn\u00e1 pr\u00ed\u010dina<\/div>\n\n\n\n\n\n\n\n
        Preru\u0161ovan\u00e9 br\u00fasenie<\/td>\nKontamin\u00e1cia tuku tvrd\u00fdmi \u010dasticami<\/td>\n<\/tr>\n
        Nepretr\u017eit\u00fd rachot<\/td>\nOdlupovanie obe\u017enej dr\u00e1hy v d\u00f4sledku \u00fanavy materi\u00e1lu alebo pre\u0165a\u017eenia<\/td>\n<\/tr>\n
        Vysok\u00fd zvuk pi\u0161\u0165ania<\/td>\nNedostatok maziva alebo nespr\u00e1vny typ maziva<\/td>\n<\/tr>\n
        Rytmick\u00e9 klikanie<\/td>\nPo\u0161kodenie gu\u013e\u00f4\u010dky alebo val\u010deka (ploch\u00e9 miesto)<\/td>\n<\/tr>\n
        Drsnos\u0165 pri n\u00edzkej r\u00fdchlosti<\/td>\nDr\u00e1\u017ekovanie lo\u017eiska VFD<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
        \n
        N\u00e1pravn\u00e9 opatrenie<\/div>\n

        V\u00fdmenu lo\u017eiska napl\u00e1nujte pri najbli\u017e\u0161ej pl\u00e1novanej \u00fadr\u017ebe. V pr\u00edpade nedostatku maziva: pridajte spr\u00e1vny typ a mno\u017estvo maziva cez mazaciu hlavicu, ak je nain\u0161talovan\u00e1 (iba pre lo\u017eisk\u00e1 s mo\u017enos\u0165ou op\u00e4tovn\u00e9ho mazania). Pre dr\u00e1\u017ekovan\u00e9 lo\u017eisko s frekven\u010dn\u00fdm meni\u010dom: nain\u0161talujte ochranu lo\u017eiska proti pr\u00fadu (izolovan\u00e9 lo\u017eisko NDE alebo uzem\u0148ovacia kefka hriade\u013ea). Nepokra\u010dujte v prev\u00e1dzke motora s po\u0161koden\u00fdm lo\u017eiskom po najbli\u017e\u0161ej \u00fadr\u017ebe \u2013 chybn\u00e9 lo\u017eisko m\u00f4\u017ee po\u0161kodi\u0165 statorov\u00fd otvor kontaktom s rotorom.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

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        05<\/div>\n
        Nevyv\u00e1\u017eenos\u0165 f\u00e1zov\u00e9ho pr\u00fadu<\/div>\n<\/div>\n
        \n
        \n
        Identifik\u00e1cia pr\u00ed\u010diny meran\u00edm<\/div>\n

        Zmerajte f\u00e1zov\u00e9 nap\u00e1jacie nap\u00e4tia na svork\u00e1ch motora (nie na rozv\u00e1dza\u010di \u2013 pokles nap\u00e4tia v k\u00e1bloch m\u00f4\u017ee sp\u00f4sobi\u0165 nerovnov\u00e1hu, ktor\u00e1 je na rozv\u00e1dza\u010di nevidite\u013en\u00e1). Zmerajte aj v\u0161etky tri f\u00e1zov\u00e9 pr\u00fady pri plnom za\u0165a\u017een\u00ed.<\/p>\n

        Pr\u00edtomn\u00e1 nerovnov\u00e1ha nap\u00e4tia<\/strong> \u2192 probl\u00e9m s nap\u00e1jacou sie\u0165ou; skontrolujte nastavenia odbo\u010diek transform\u00e1tora, skontrolujte vysokoodporov\u00e9 pripojenia v rozv\u00e1dza\u010di<\/p>\n

        Nap\u00e4\u0165ovo vyv\u00e1\u017een\u00e9, pr\u00fadovo nevyv\u00e1\u017een\u00e9<\/strong> \u2192 porucha vinutia motora; zmerajte odpor vinutia v ka\u017edej f\u00e1ze \u2013 odch\u00fdlka nad 2% indikuje \u010diasto\u010dn\u00fd skrat alebo preru\u0161en\u00fd obvod<\/div>\n<\/div>\n

        \n
        Pre\u010do je nerovnov\u00e1ha \u0161kodliv\u00e1<\/div>\n

        Nevyv\u00e1\u017eenos\u0165 nap\u00e1jacieho nap\u00e4tia 3,51 TP3T m\u00f4\u017ee sp\u00f4sobi\u0165 nevyv\u00e1\u017eenos\u0165 pr\u00fadu 15 a\u017e 251 TP3T, preto\u017ee pr\u00fad asynchr\u00f3nneho motora je ve\u013emi citliv\u00fd na asymetriu nap\u00e4tia. F\u00e1za, ktor\u00e1 pren\u00e1\u0161a najvy\u0161\u0161\u00ed pr\u00fad, sa zahrieva najr\u00fdchlej\u0161ie. Normy NEMA MG1 a IEC 60034-26 odpor\u00fa\u010daj\u00fa zn\u00ed\u017ei\u0165 v\u00fdstupn\u00fd v\u00fdkon motora, ke\u010f nevyv\u00e1\u017eenos\u0165 nap\u00e4tia prekro\u010d\u00ed 11 TP3T. Pri nevyv\u00e1\u017eenosti nap\u00e4tia 51 TP3T zn\u00ed\u017ete v\u00fdkon na 751 TP3T uveden\u00fd na \u0161t\u00edtku, aby ste predi\u0161li prehriatiu vinutia hor\u00facej f\u00e1zy.<\/p>\n<\/div>\n<\/div>\n<\/div>\n

        <\/p>\n

        \n
        \n
        06<\/div>\n
        N\u00edzky izola\u010dn\u00fd odpor \u2014 pod 1 M\u03a9<\/div>\n<\/div>\n
        \n
        \n
        Mo\u017en\u00e9 pr\u00ed\u010diny<\/div>\n
          \n
        • Absorpcia vlhkosti vo vinut\u00ed v d\u00f4sledku kondenz\u00e1cie alebo zaplavenia<\/li>\n
        • Zne\u010distenie izol\u00e1cie vodiv\u00fdm prachom, olejovou hmlou alebo chemick\u00fdmi parami<\/li>\n
        • Tepeln\u00e1 degrad\u00e1cia izol\u00e1cie v d\u00f4sledku opakovan\u00e9ho prehrievania<\/li>\n
        • Mechanick\u00e9 po\u0161kodenie vinutia n\u00e1razom alebo vibr\u00e1ciami<\/li>\n
        • Po\u0161kodenie \u010diasto\u010dn\u00fdm v\u00fdbojom v d\u00f4sledku nap\u00e4\u0165ov\u00fdch \u0161pi\u010diek meni\u010da frekvencie na \u0161tandardnom motore<\/li>\n<\/ul>\n<\/div>\n
          \n
          N\u00e1pravn\u00e9 opatrenie<\/div>\n

          Prv\u00fd pokus o su\u0161enie: ohrievajte motor v peci pri teplote 80 \u00b0C po\u010das 6 a\u017e 24 hod\u00edn alebo pou\u017eite ohrieva\u010de vinut\u00ed \u010di n\u00edzkonap\u00e4\u0165ov\u00fa injekciu pr\u00fadu. Po vysu\u0161en\u00ed znova otestujte izola\u010dn\u00fd odpor \u2013 ak sa zv\u00fd\u0161i nad 10 M\u03a9, pr\u00ed\u010dinou bola vlhkos\u0165 a motor sa m\u00f4\u017ee vr\u00e1ti\u0165 do prev\u00e1dzky. Ak izola\u010dn\u00fd odpor zostane po vysu\u0161en\u00ed n\u00edzky, je potrebn\u00e9 vinutie previn\u00fa\u0165 alebo vymeni\u0165 motor.<\/p>\n

          Minim\u00e1lny izola\u010dn\u00fd odpor: 1 M\u03a9 pri 20 \u00b0C. Empirick\u00e9 pravidlo: IR (M\u03a9) \u2265 menovit\u00fd v\u00fdkon motora kV + 1<\/div>\n<\/div>\n<\/div>\n<\/div>\n

          <\/p>\n

          \n
          \n
          \n
          07<\/div>\n
          Motor be\u017e\u00ed pod menovit\u00fdmi ot\u00e1\u010dkami<\/div>\n<\/div>\n
          \n

          Pr\u00ed\u010diny:<\/strong> Nap\u00e1jacie nap\u00e4tie je ni\u017e\u0161ie ako menovit\u00e9 (zni\u017euje dostupn\u00fd kr\u00fatiaci moment, zvy\u0161uje sklz pri rovnakom za\u0165a\u017een\u00ed); z\u00e1\u0165a\u017eov\u00fd kr\u00fatiaci moment presahuje menovit\u00fd v\u00fdkon motora; skrat v rotorovej ty\u010di zvy\u0161uje odpor rotora a sklz pri plnom kr\u00fatiacom momente; jednof\u00e1zov\u00e1 prev\u00e1dzka z d\u00f4vodu v\u00fdpadku f\u00e1zy, ktor\u00e1 n\u00fati motor be\u017ea\u0165 na dvoch f\u00e1zach so zn\u00ed\u017een\u00fdm kr\u00fatiacim momentom a ve\u013emi vysok\u00fdm sklzom.<\/p>\n

          Skontrolujte:<\/strong> Zmerajte nap\u00e1jacie nap\u00e4tie pri za\u0165a\u017een\u00ed (nie bez za\u0165a\u017eenia); zmerajte pr\u00fad \u2013 ak je pr\u00fad na \u00farovni alebo vy\u0161\u0161\u00ed ako \u00fadaj na \u0161t\u00edtku, ale ot\u00e1\u010dky s\u00fa n\u00edzke, za\u0165a\u017eenie prekra\u010duje menovit\u00e9 hodnoty motora. Zmerajte pr\u00fadov\u00fa charakteristiku rotora, \u010di neobsahuje indik\u00e1tor preru\u0161enia ty\u010de.<\/p>\n<\/div>\n<\/div>\n

          \n
          \n
          08<\/div>\n
          Zn\u00ed\u017een\u00fd \u0161tartovac\u00ed kr\u00fatiaci moment<\/div>\n<\/div>\n
          \n

          Pr\u00ed\u010diny:<\/strong> Nap\u00e1jacie nap\u00e4tie na svork\u00e1ch motora je ni\u017e\u0161ie ako menovit\u00e9 (rozbehov\u00fd moment je \u00famern\u00fd druhej mocnine nap\u00e4tia); nespr\u00e1vne zapojenie svoriek (hviezda pou\u017eit\u00e1 na motore ur\u010denom pre trojuholn\u00edk na tomto nap\u00e1jan\u00ed); zlomen\u00e1 rotorov\u00e1 ty\u010d zni\u017euje rotorov\u00fd pr\u00fad pri rozbehu; \u0161tart\u00e9r hviezda-trojuholn\u00edk neprep\u00edna spr\u00e1vne a motor zost\u00e1va v hviezde pri menovitom za\u0165a\u017een\u00ed.<\/p>\n

          Skontrolujte:<\/strong> Po\u010das pokusu o \u0161tart zmerajte nap\u00e4tie na svork\u00e1ch motora. Skontrolujte, \u010di zapojenie svoriek (hviezda alebo trojuholn\u00edk) zodpoved\u00e1 menovit\u00fdm hodnot\u00e1m motora. Sk\u00fa\u0161ka pr\u00fadu so zablokovan\u00fdm rotorom (iba kr\u00e1tkodob\u00e1) odhal\u00ed, \u010di je pr\u00fad rotora ni\u017e\u0161\u00ed ako o\u010dak\u00e1van\u00e1 hodnota, \u010do nazna\u010duje preru\u0161en\u00e9 ty\u010de.<\/p>\n<\/div>\n<\/div>\n

          \n
          \n
          09<\/div>\n
          Strata f\u00e1zy \u2013 Jedna f\u00e1za straten\u00e1 po\u010das behu<\/div>\n<\/div>\n
          \n

          Pr\u00edznaky:<\/strong> Motor pokra\u010duje v chode na dvoch f\u00e1zach, ale so zn\u00ed\u017een\u00fdm kr\u00fatiacim momentom a ve\u013emi vysok\u00fdm pr\u00fadom v zost\u00e1vaj\u00facich dvoch f\u00e1zach. Hukot sa v\u00fdrazne zvy\u0161uje. Teplota r\u00e1mu r\u00fdchlo st\u00fapa. Ak je rel\u00e9 pre\u0165a\u017eenia spr\u00e1vne nastaven\u00e9, malo by sa vypn\u00fa\u0165 do 1 a\u017e 3 min\u00fat.<\/p>\n

          Pr\u00ed\u010diny:<\/strong> Prep\u00e1len\u00e1 poistka na jednej f\u00e1ze, otvoren\u00fd kontakt v styka\u010di, preru\u0161en\u00fd nap\u00e1jac\u00ed k\u00e1bel, uvo\u013enen\u00e9 pripojenie svorkovnice. Akcia:<\/strong> Okam\u017eite izolujte \u2013 pokra\u010dovanie v prev\u00e1dzke na jednu f\u00e1zu zni\u010d\u00ed vinutie. Skontrolujte v\u0161etky trojf\u00e1zov\u00e9 poistky a kontakty st\u00fdka\u010da. Zmerajte priechodnos\u0165 ka\u017edej nap\u00e1jacej f\u00e1zy k svork\u00e1m motora.<\/p>\n<\/div>\n<\/div>\n

          \n
          \n
          10<\/div>\n
          \u00danik tesnenia hriade\u013ea<\/div>\n<\/div>\n
          \n

          Pr\u00edznaky:<\/strong> Stopy tuku alebo oleja vidite\u013en\u00e9 na pred\u013a\u017een\u00ed hriade\u013ea, r\u00e1me motora okolo tesnenia na strane pohonu alebo na mont\u00e1\u017enej ploche poh\u00e1\u0148an\u00e9ho stroja. V aplik\u00e1ci\u00e1ch s motormi potravin\u00e1rskej kvality alebo s kryt\u00edm IP69K predstavuje porucha tesnenia hygienick\u00e9 riziko, ako aj probl\u00e9m s \u00fadr\u017ebou.<\/p>\n

          Pr\u00ed\u010diny:<\/strong> Opotrebovan\u00e1 tesniaca hrana v d\u00f4sledku abraz\u00edvneho zne\u010distenia; tesnenie zostarlo za hranicu \u017eivotnosti; nadmern\u00e9 radi\u00e1lne za\u0165a\u017eenie alebo vych\u00fdlenie hriade\u013ea po\u0161kodzuj\u00face kontakt tesniacej hrany; nadmern\u00e9 naplnenie mazivom sp\u00f4sobuj\u00face n\u00e1rast tlaku za tesnen\u00edm. Akcia:<\/strong> Vyme\u0148te tesnenie hriade\u013ea za spr\u00e1vny typ \u2013 \u0161tandardn\u00fd nitril alebo silik\u00f3n potravin\u00e1rskej kvality (s\u00e9ria BXG). Odstr\u00e1\u0148te hlavn\u00fa pr\u00ed\u010dinu (za\u0165a\u017eenie alebo mazanie), aby ste predi\u0161li opakovaniu.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

          <\/p>\n

          \n

          R\u00fdchla diagnostick\u00e1 pr\u00edru\u010dka<\/h2>\n
          \n\n\n\n\n\n\n\n\n\n\n
          Pozorovan\u00fd pr\u00edznak<\/th>\nPrv\u00e9 meranie<\/th>\nPravdepodobn\u00e1 hlavn\u00e1 pr\u00ed\u010dina<\/th>\nN\u00e1pravn\u00e9 opatrenie<\/th>\n<\/tr>\n<\/thead>\n
          Vysok\u00e1 teplota r\u00e1mu<\/td>\nF\u00e1zov\u00e9 pr\u00fady<\/td>\nPre\u0165a\u017eenie alebo nerovnov\u00e1ha nap\u00e4tia<\/td>\nZn\u00ed\u017ete za\u0165a\u017eenie; skontrolujte bilanciu dod\u00e1vky<\/td>\n<\/tr>\n
          Zv\u00fd\u0161enie vibr\u00e1ci\u00ed<\/td>\nVibra\u010dn\u00e9 spektrum<\/td>\nNespr\u00e1vne nastavenie (dominantn\u00e9 ot\u00e1\u010dky 1x alebo 2x)<\/td>\nZnovu zarovnajte; skontrolujte spojku<\/td>\n<\/tr>\n
          Hluk lo\u017eiska (dunenie)<\/td>\nTeplota lo\u017eiska<\/td>\n\u00danava, kontamin\u00e1cia alebo ryhovanie meni\u010da frekvencie<\/td>\nVyme\u0148te lo\u017eisko; pridajte ochranu lo\u017eiska<\/td>\n<\/tr>\n
          Pr\u00fadov\u00e1 nerovnov\u00e1ha > 5%<\/td>\nF\u00e1zov\u00e9 nap\u00e4tia<\/td>\nNerovnov\u00e1ha nap\u00e1jania alebo porucha vinutia<\/td>\nSpr\u00e1vne nap\u00e1janie; previ\u0148te, ak sa nav\u00edja<\/td>\n<\/tr>\n
          Izola\u010dn\u00fd odpor R < 1 M\u03a9<\/td>\n500 V megaohmmeter<\/td>\nVlhkos\u0165, kontamin\u00e1cia alebo starnutie<\/td>\nVysu\u0161te; ak pretrv\u00e1va, preto\u010dte sp\u00e4\u0165<\/td>\n<\/tr>\n
          R\u00fdchlos\u0165 pod menovitou hodnotou<\/td>\nNap\u00e4tie pri za\u0165a\u017een\u00ed<\/td>\nN\u00edzke nap\u00e4tie alebo pre\u0165a\u017eenie<\/td>\nSpr\u00e1vne nap\u00e4tie; zn\u00ed\u017ete z\u00e1\u0165a\u017e<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n<\/div>\n

          <\/p>\n

          \n
          \n

          \"K\u00f3rejsk\u00e1<\/p>\n

          V\u00fdroba rotorov<\/div>\n<\/div>\n
          \n

          \"Podpora<\/p>\n

          In\u017einiersky t\u00edm<\/div>\n<\/div>\n
          \n

          \"Aplik\u00e1cia<\/p>\n

          \u0164a\u017eobn\u00e9 aplik\u00e1cie<\/div>\n<\/div>\n
          \n

          \"Glob\u00e1lny<\/p>\n

          Glob\u00e1lna podpora<\/div>\n<\/div>\n<\/div>\n

          <\/p>\n

          \n

          \u010casto kladen\u00e9 ot\u00e1zky<\/h2>\n
          \n
          \n
          \n
          Ako \u010dasto by sa mal mera\u0165 izola\u010dn\u00fd odpor ako s\u00fa\u010das\u0165 programu \u00fadr\u017eby motora?<\/div>\n<\/div>\n
          \n

          Pri motoroch v nepretr\u017eitej prev\u00e1dzke v \u0161tandardnom priemyselnom prostred\u00ed merajte izola\u010dn\u00fd odpor minim\u00e1lne raz ro\u010dne. V n\u00e1ro\u010dn\u00fdch prostrediach (vysok\u00e1 vlhkos\u0165, chemick\u00e9 vystavenie, vysok\u00e1 teplota okolia alebo \u010dast\u00e9 tepeln\u00e9 cykly) merajte ka\u017ed\u00fdch 6 mesiacov. Zaznamenajte si hodnotu spolu s teplotou motora v \u010dase merania, preto\u017ee izola\u010dn\u00fd odpor sa pribli\u017ene polovi\u010dne zni\u017euje pri ka\u017edom zv\u00fd\u0161en\u00ed teploty o 10 \u00b0C \u2013 hodnota 5 M\u03a9 pri 50 \u00b0C zodpoved\u00e1 pribli\u017ene 80 M\u03a9 pri 20 \u00b0C. Klesaj\u00faci trend v priebehu nieko\u013ek\u00fdch meran\u00ed je v\u00fdznamnej\u0161\u00ed ako jedna absol\u00fatna hodnota, \u010do nazna\u010duje postupn\u00fa degrad\u00e1ciu izol\u00e1cie.<\/p>\n<\/div>\n<\/div>\n

          \n
          \n
          Je bezpe\u010dn\u00e9 re\u0161tartova\u0165 motor, ktor\u00fd sa zapol z d\u00f4vodu pre\u0165a\u017eenia, bez zistenia pr\u00ed\u010diny?<\/div>\n<\/div>\n
          \n

          Nie. Pre\u0165a\u017eenie znamen\u00e1, \u017ee ochrann\u00e9 rel\u00e9 motora detekovalo pr\u00fad nad nastavenou prahovou hodnotou dostato\u010dne dlho na to, aby spustilo tepeln\u00fd model v rel\u00e9. Jednoduch\u00e9 resetovanie a re\u0161tartovanie bez pre\u0161etrenia riskuje opakovan\u00e9 vypnutie (ak je pr\u00ed\u010dinou pretrv\u00e1vaj\u00face pre\u0165a\u017eenie) alebo, \u010do je hor\u0161ie, umo\u017e\u0148uje motoru, ktor\u00fd je u\u017e od prv\u00e9ho vypnutia hor\u00faci, re\u0161tartova\u0165 sa a r\u00fdchlej\u0161ie dosiahnu\u0165 \u0161kodliv\u00e9 teploty vinutia pri druhom pre\u0165a\u017een\u00ed. Pred resetovan\u00edm pre\u0165a\u017eovacieho rel\u00e9 po\u010dkajte, k\u00fdm motor vychladne, identifikujte a odstr\u00e1\u0148te pr\u00ed\u010dinu pre\u0165a\u017eenia, overte, \u010di je pre\u0165a\u017eovacie rel\u00e9 nastaven\u00e9 na spr\u00e1vny pr\u00fad (zodpoved\u00e1 \u00fadajom na typovom \u0161t\u00edtku) a skontrolujte, \u010di s\u00fa trojf\u00e1zov\u00e9 pr\u00fady vyv\u00e1\u017een\u00e9.<\/p>\n<\/div>\n<\/div>\n

          \n
          \n
          Kedy by som mal motor vymeni\u0165, a nie ho opravova\u0165?<\/div>\n<\/div>\n
          \n

          V\u00fdmena je vo v\u0161eobecnosti n\u00e1kladovo efekt\u00edvnej\u0161ia ako oprava, ke\u010f: motor m\u00e1 v\u00fdkon ni\u017e\u0161\u00ed ako 11 kW (n\u00e1klady na opravu sa bl\u00ed\u017eia k n\u00e1kladom na nov\u00fd motor); motor m\u00e1 \u00fa\u010dinnos\u0165 IE1 alebo IE2 (v\u00fdmena za IE3 poskytuje priebe\u017en\u00e9 \u00faspory n\u00e1kladov na energiu, ktor\u00e9 r\u00fdchlo vr\u00e1tia kapit\u00e1lov\u00e9 n\u00e1klady); motor bol previnut\u00fd viackr\u00e1t (ka\u017ed\u00e9 previnutie zni\u017euje \u00fa\u010dinnos\u0165 a tepeln\u00fa kapacitu); alebo motor utrpel v\u00e1\u017ene po\u0161kodenie (sp\u00e1len\u00fd otvor statora, ohnut\u00fd hriade\u013e alebo zaplaven\u00e9 vinutie). Oprava je opodstatnen\u00e1 pre ve\u013ek\u00e9 motory (nad 30 kW) s opravite\u013en\u00fdm po\u0161koden\u00edm \u2013 previnut\u00fd 90 kW motor v \u0161tandardoch kvalitnej prev\u00edjacej dielne zost\u00e1va prev\u00e1dzkyschopn\u00fd a n\u00e1kladovo efekt\u00edvny v porovnan\u00ed s n\u00e1kupom nov\u00e9ho motora. Spolo\u010dnos\u0165 Korea Ever-Power m\u00f4\u017ee doda\u0165 n\u00e1hradn\u00e9 motory pre v\u0161etky hlavn\u00e9 ve\u013ekosti r\u00e1mov od \u0161tandardnej s\u00e9rie Y2 a\u017e po \u0161pecializovan\u00fa \u2013 informujte sa prostredn\u00edctvom t\u00edm technickej podpory<\/a>.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n

          <\/p>\n

          \n
          <\/div>\n

           <\/p>\n

          \n
          K\u00f3rejsk\u00e1 spolo\u010dnos\u0165 Ever-Power \u00b7 Technick\u00e1 podpora<\/div>\n

          Potrebujete n\u00e1hradn\u00e9 motory alebo technick\u00fa podporu?<\/h2>\n

          Spolo\u010dnos\u0165 Korea Ever-Power m\u00e1 skladom motory radov Y2, YB2, Y2EJ, YVF2 a BXG vo v\u0161etk\u00fdch \u0161tandardn\u00fdch ve\u013ekostiach r\u00e1mov IEC pre r\u00fdchlu v\u00fdmenu. V\u00edtan\u00e9 s\u00fa aj technick\u00e9 ot\u00e1zky t\u00fdkaj\u00face sa pomoci s rie\u0161en\u00edm probl\u00e9mov.<\/p>\n

          Zobrazi\u0165 n\u00e1hradn\u00e9 motory<\/a><\/p>\n<\/div>\n<\/div>\n

          Upravil Cxm<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"

          Korea Ever-Power \u00b7 Maintenance Guide \u00b7 Fault Diagnosis How to Troubleshoot Electric Motor Failures: 10 Common Issues and Their Causes Most electric motor failures give advance warning through measurable changes in current, vibration, temperature, or noise before the motor actually fails. Recognising these early signals and identifying their root cause accurately allows maintenance teams to […]<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_et_pb_use_builder":"","_et_pb_old_content":"","_et_gb_content_width":"","footnotes":""},"categories":[28],"tags":[],"class_list":["post-160","post","type-post","status-publish","format-standard","hentry","category-industrial-electric-motor"],"_links":{"self":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts\/160","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/comments?post=160"}],"version-history":[{"count":1,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts\/160\/revisions"}],"predecessor-version":[{"id":162,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/posts\/160\/revisions\/162"}],"wp:attachment":[{"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/media?parent=160"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/categories?post=160"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/industrialelectricmotor.net\/sk\/wp-json\/wp\/v2\/tags?post=160"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}