{"id":112,"date":"2025-10-31T00:25:51","date_gmt":"2025-10-31T00:25:51","guid":{"rendered":"https:\/\/vibromera.eu\/glossary\/electrical-unbalance\/"},"modified":"2026-05-29T15:58:09","modified_gmt":"2026-05-29T15:58:09","slug":"electrical-unbalance","status":"publish","type":"glossary","link":"https:\/\/vibromera.eu\/lv\/glossary\/electrical-unbalance\/","title":{"rendered":"Kas ir elektrisk\u0101 disbalansa f\u0101zes disbalanss? Motora f\u0101zes disbalanss"},"content":{"rendered":"

Elektrisk\u0101s disbalansa izpratne<\/h1>\n\t\t
\n\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\"Balanset-1A\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t
<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\tIer\u012bces<\/a><\/span>\n\t\t\t\t\t\t\t\t

\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tPortat\u012bvais balansieris un vibr\u0101ciju analizators Balanset-1A<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t
\n\n\t\t\t\t\t\t\t\t\t

\u20ac<\/span>1,975.00<\/span> + PVN (ja piem\u0113rojams)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t<\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>Pievienot grozam<\/a>\t\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\"Balanset-1A\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t
<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\tDa\u013cas<\/a><\/span>\n\t\t\t\t\t\t\t\t

\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tVibr\u0101cijas sensors<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t
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\u20ac<\/span>90.00<\/span> + PVN (ja piem\u0113rojams)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t<\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>Pievienot grozam<\/a>\t\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\"Optiskais\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t
<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\tDa\u013cas<\/a><\/span>\n\t\t\t\t\t\t\t\t

\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tOptiskais sensors (l\u0101zera tahometrs)<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t
\n\n\t\t\t\t\t\t\t\t\t

\u20ac<\/span>124.00<\/span> + PVN (ja piem\u0113rojams)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t<\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>Pievienot grozam<\/a>\t\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\"Vibromera\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t
<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\tIer\u012bces<\/a><\/span>\n\t\t\t\t\t\t\t\t

\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tbalans\u0113\u0161anas komplekts-4<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t
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\u20ac<\/span>6,803.00<\/span> + PVN (ja piem\u0113rojams)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t<\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>Pievienot grozam<\/a>\t\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>
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\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\"Magn\u0113ta\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t
<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\tDa\u013cas<\/a><\/span>\n\t\t\t\t\t\t\t\t

\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tMagn\u0113tiskais stat\u012bvs Insize-60-kgf<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t
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\u20ac<\/span>46.00<\/span> + PVN (ja piem\u0113rojams)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t<\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>Pievienot grozam<\/a>\t\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\"Atstarojo\u0161\u0101\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t
<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\tDa\u013cas<\/a><\/span>\n\t\t\t\t\t\t\t\t

\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tAtstarojo\u0161\u0101 lente<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t
\n\n\t\t\t\t\t\t\t\t\t

\u20ac<\/span>10.00<\/span> + PVN (ja piem\u0113rojams)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t<\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>Pievienot grozam<\/a>\t\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t
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\n\t\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t\t\t\"Balanset-1A\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t
<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\tIer\u012bces<\/a><\/span>\n\t\t\t\t\t\t\t\t

\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\tDinamiskais balans\u0113t\u0101js \"Balanset-1A\" OEM<\/a>\n\n\t\t\t\t\t\t\t\t<\/h4>\n\n\t\t\t\t\t\t\t\t\n\t\t\t\t\t\t\t\t
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\u20ac<\/span>1,735.00<\/span> + PVN (ja piem\u0113rojams)<\/h4><\/div>\n\t\t\t\t\t\t\t\t\t
\n\t\t\t\t\t\t\t\t\t\t<\/i><\/a>\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/a>Pievienot grozam<\/a>\t\n\t\t\t<\/span>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/section>\n\t\t\n

Elektrisk\u0101 disbalansa<\/strong> - ko sauc ar\u012b par f\u0101\u017eu nel\u012bdzsvarot\u012bba<\/strong>, f\u0101\u017eu nel\u012bdzsvarot\u012bba<\/strong>, sprieguma nel\u012bdzsvarot\u012bba<\/strong> vai str\u0101vas nel\u012bdzsvarot\u012bba<\/strong> - ir st\u0101voklis tr\u012bsf\u0101zu sist\u0113m\u0101, kad spriegumi vai str\u0101vas tr\u012bs f\u0101z\u0113s nav vien\u0101da lieluma vai nav atdal\u012btas prec\u012bzi par 120 elektriskiem gr\u0101diem. \u0160\u012b asimetrija, neatkar\u012bgi no t\u0101, vai t\u0101s izcelsme ir baro\u0161anas avot\u0101 vai sist\u0113mas iek\u0161ien\u0113, ir atkar\u012bga no t\u0101, vai t\u0101 rodas str\u0101vas padev\u0113 vai motors<\/a> tinumu, rada nesabalans\u0113tus elektromagn\u0113tiskos sp\u0113kus, p\u0101rm\u0113r\u012bgu tinumu sakar\u0161anu, negat\u012bvas sec\u012bbas str\u0101vas, griezes momenta puls\u0101cijas un rakstur\u012bgu elektrisku str\u0101vu. vibr\u0101cija<\/a> divreiz vair\u0101k nek\u0101 t\u012bkla frekvence<\/a>.<\/p>\n

Elektrisk\u0101 nel\u012bdzsvarot\u012bba ir maldino\u0161a, jo t\u0101 ir saist\u012bta ar sviru: pat neliela sprieguma nel\u012bdzsvarot\u012bba 2-3% var rad\u012bt se\u0161as l\u012bdz desmit reizes liel\u0101ku str\u0101vas nel\u012bdzsvarot\u012bbu, kas nesteidz\u012bgi samazina motora efektivit\u0101ti, siltuma rezervi un izol\u0101cijas ilgumu. T\u0101 ir viena no visbie\u017e\u0101k sastopamaj\u0101m - un visvair\u0101k nepaman\u012btaj\u0101m - probl\u0113m\u0101m r\u016bpnieciskaj\u0101s iek\u0101rt\u0101s, kas rodas no komun\u0101lo pakalpojumu pieg\u0101des probl\u0113m\u0101m, sliktas sadales uz\u0146\u0113mum\u0101 vai defektiem pa\u0161\u0101 motor\u0101. T\u0101 k\u0101 t\u0101 vibr\u0101ciju signat\u016bra ir vien\u0101da frekven\u010du zi\u0146\u0101 ar vair\u0101kiem patiesiem meh\u0101niskiem defektiem, tas ir ar\u012b viens no visbie\u017e\u0101k nepareizi diagnostic\u0113tajiem apst\u0101k\u013ciem, ar ko saskaras tehnisk\u0101s apkopes komanda.<\/p>\n

1. Kas ir f\u0101\u017eu nel\u012bdzsvarot\u012bba? Spriegums, str\u0101va un f\u0101\u017eu le\u0146\u0137a nel\u012bdzsvarot\u012bba<\/h2>\n

\u201cF\u0101\u017eu nel\u012bdzsvarot\u012bba\u201d ir ikdieni\u0161\u0137s \u0161\u012b st\u0101vok\u013ca nosaukums, un tas izpau\u017eas tr\u012bs da\u017e\u0101d\u0101s, bet savstarp\u0113ji saist\u012bt\u0101s form\u0101s. Ir svar\u012bgi zin\u0101t, kuru no t\u0101m m\u0113ra: sprieguma nel\u012bdzsvarot\u012bba ir iemesls, ko motoram rada baro\u0161anas avots, bet str\u0101vas nel\u012bdzsvarot\u012bba ir pastiprin\u0101t\u0101 str\u0101va. ietekme<\/em> motors rea\u0123\u0113 uz to nelabv\u0113l\u012bgi.<\/p>\n

Sprieguma asimetrija<\/h3>\n

Sprieguma nesabalans\u0113t\u012bba ir tr\u012bs spriegumu starp l\u012bnij\u0101m (vai starp l\u012bniju un neitr\u0101liju) nevienl\u012bdz\u012bba. To m\u0113ra, nolasot spriegumu starp katru f\u0101\u017eu p\u0101ri - AB, BC un CA - un izsaka procentos, izmantojot NEMA defin\u012bciju: % sprieguma nel\u012bdzsvarot\u012bba = (maksim\u0101l\u0101 novirze no vid\u0113j\u0101 \u00f7 vid\u0113jais) \u00d7 100<\/strong>. Darba piem\u0113rs: 477 V, 480 V un 483 V f\u0101zes vid\u0113ji ir 480 V; maksim\u0101l\u0101 novirze ir 3 V, kas dod 0,625% disbalansu. NEMA MG-1 par pie\u0146emamu uzskata visu, kas maz\u0101ks par 1%, bet IEC prakse pie\u013cauj l\u012bdz aptuveni 2%. Sprieguma nel\u012bdzsvarot\u012bba ir parametrs, kam j\u0101piev\u0113r\u0161 uzman\u012bba vispirms, jo t\u0101 ir gandr\u012bz visu turpm\u0101ko parametru virz\u012bt\u0101jsp\u0113ks.<\/p>\n

Str\u0101vas asimetrija<\/h3>\n

Str\u0101vas nel\u012bdzsvarot\u012bba ir tr\u012bs f\u0101\u017eu str\u0101vu nevienl\u012bdz\u012bba (IA<\/sub>, IB<\/sub>, IC<\/sub>), ko m\u0113ra ar skavas m\u0113r\u012bt\u0101ju un apr\u0113\u0137ina p\u0113c t\u0101s pa\u0161as maksim\u0101l\u0101s novirzes formulas. Galvenais fakts par str\u0101vas nel\u012bdzsvarot\u012bbu ir t\u0101s jut\u012bba: t\u0101 k\u0101 motora negat\u012bv\u0101s sekvences pretest\u012bba ir zema, neliela sprieguma nel\u012bdzsvarot\u012bba tiek palielin\u0101ta l\u012bdz str\u0101vas nel\u012bdzsvarot\u012bbai, kas ir aptuveni vien\u0101da ar str\u0101vas nel\u012bdzsvarot\u012bbu. se\u0161as l\u012bdz desmit reizes liel\u0101ks<\/strong>. T\u0101p\u0113c tikko paman\u0101ms 1% sprieguma disbalanss var par\u0101d\u012bties k\u0101 6-10% str\u0101vas disbalanss - tie\u0161i t\u0101p\u0113c str\u0101va ir jut\u012bg\u0101ks agr\u012bn\u0101 br\u012bdin\u0101juma m\u0113r\u012bjums un t\u0101p\u0113c pieaugo\u0161s str\u0101vas disbalanss cit\u0101di stabil\u0101 baro\u0161anas avot\u0101 nor\u0101da uz boj\u0101jumu, kas rodas motora iek\u0161ien\u0113.<\/p>\n

F\u0101\u017eu le\u0146\u0137a asimetrija<\/h3>\n

Tre\u0161\u0101 forma ir le\u0146\u0137a forma: tr\u012bs fazorus vairs neno\u0161\u0137ir prec\u012bzi 120\u00b0, pat ja to lielumi ir vien\u0101di. Tas ir ret\u0101k sastopams nek\u0101 magnit\u016bdas nel\u012bdzsvarot\u012bba, un to nevar nov\u0113rot ar vienk\u0101r\u0161u voltmetru - tam nepiecie\u0161ams jaudas kvalit\u0101tes analizators, kas iz\u0161\u0137ir fazoru attiec\u012bbas. St\u016bra disbalanss rada t\u0101du pa\u0161u puls\u0113jo\u0161u griezes momentu un papildu sasil\u0161anu k\u0101 magnit\u016bdas disbalanss, un abas \u0161\u012bs par\u0101d\u012bbas bie\u017ei notiek kop\u0101.<\/p>\n

2. K\u0101 elektrisk\u0101 nel\u012bdzsvarot\u012bba rada vibr\u0101ciju motoros<\/h2>\n

Saikne starp elektrisko asimetriju un meh\u0101nisko vibr\u0101ciju notiek caur gaisa spraugas magn\u0113tisko lauku. L\u012bdzsvarot\u0101 ma\u0161\u012bn\u0101 rot\u0113jo\u0161ais lauks ir vienm\u0113r\u012bgs, un radi\u0101lie magn\u0113tiskie sp\u0113ki summ\u0113 vienm\u0113r\u012bgu, simetrisku vilci. Izbalans\u0113\u0161ana izjauc \u0161o simetriju un rada vilces sp\u0113ku. negat\u012bv\u0101s sec\u012bbas<\/em> komponents - lauks, kas rot\u0113 atpaka\u013c attiec\u012bb\u0101 pret galveno lauku, - kas sit pret to un modul\u0113 magn\u0113tisko sp\u0113ku.<\/p>\n

Domin\u0113jo\u0161ais rezult\u0101ts ir vibr\u0101cija pie divk\u0101r\u0161s t\u012bkla frekvences lielums<\/strong>: 100 Hz, ja ir 50 Hz str\u0101vas padeve, vai 120 Hz, ja ir 60 Hz str\u0101vas padeve. \u0160\u012b 2 \u00d7 l\u012bnijas komponente ir t\u012bri elektromagn\u0113tiska - tas ir puls\u0113jo\u0161s pievilk\u0161anas sp\u0113ks p\u0101ri elektrot\u012bklam. gaisa sprauga<\/a>, nevis rot\u0113jo\u0161\u0101s masas meh\u0101niskais sp\u0113ks. T\u0101 amplit\u016bda main\u0101s atkar\u012bb\u0101 no nel\u012bdzsvarot\u012bbas pak\u0101pes, t\u0101p\u0113c pasliktin\u0101ta padeve vai radu\u0161ies tinuma boj\u0101jumi izpau\u017eas k\u0101 past\u0101v\u012bgi pieaugo\u0161s 100\/120 Hz maksimums. spektrs<\/a>.<\/p>\n

Otrs, smalk\u0101ks paraksts par\u0101d\u0101s pie 1\u00d7 rot\u0101cijas \u0101trums<\/strong>, ko modul\u0113 sl\u012bd\u0113\u0161anas polu caurlaides frekvence (polu skaits reizin\u0101ts ar sl\u012bd\u0113\u0161anas frekvenci). \u0160\u012b polu caurlaides modul\u0101cija rada s\u0101nu joslas ap darba \u0101truma maksimumu un ir klasisks ar rotoru saist\u012btu elektrisko probl\u0113mu pirkstu nospiedums, piem. salauzti rotora stie\u0146i<\/a>. Pareiza \u0161o s\u0101nu joslu nolas\u012b\u0161ana \u013cauj anal\u012bti\u0137im no\u0161\u0137irt baro\u0161anas puses disbalansu no rotor\u0101 iestr\u0101d\u0101ta boj\u0101juma.<\/p>\n

3. Elektrisk\u0101s un meh\u0101nisk\u0101s nel\u012bdzsvarot\u012bbas no\u0161\u0137ir\u0161ana<\/h2>\n

T\u0101 k\u0101 elektromagn\u0113tisk\u0101 2 \u00d7 l\u012bnijas frekvences komponente ir \u013coti tuvu divk\u0101r\u0161am divpolu motora darb\u012bbas \u0101trumam, to parasti sajauc ar meh\u0101niskiem defektiem, piem\u0113ram. v\u0101rpstu nesakrit\u012bba<\/a> vai va\u013c\u012bgumu, kas ar\u012b rada 2 \u00d7 liel\u0101ku v\u0101rpstas \u0101truma ener\u0123iju. To no\u0161\u0137ir\u0161ana ir visnoder\u012bg\u0101k\u0101 motora vibr\u0101ciju diagnostikas prasme, un ir divi uzticami testi.<\/p>\n

Pirmais ir frekvences precizit\u0101te<\/strong>. Elektriskais komponents ir piesl\u0113gts elektrot\u012bklam pie tie\u0161i t\u0101<\/em> 100 Hz vai 120 Hz, savuk\u0101rt meh\u0101nisk\u0101 2\u00d7 darbojas ar divk\u0101r\u0161u faktisko darba \u0101trumu, kas indukcijas motora sl\u012bd\u0113\u0161anas d\u0113\u013c vienm\u0113r ir nedaudz maz\u0101ks par divk\u0101r\u0161u sinhrono \u0101trumu. Ar pietiekamu spektr\u0101lo iz\u0161\u0137irtsp\u0113ju p\u012b\u0137i ir atdal\u0101mi: l\u012bnij\u0101s fiks\u0113ts p\u012b\u0137is, kas nemain\u0101s l\u012bdz ar slodzi, ir elektriskais; p\u012b\u0137is, kas seko v\u0101rpstas \u0101trumam, ir meh\u0101niskais.<\/p>\n

Otrais - un iz\u0161\u0137iro\u0161ais - ir izsl\u0113g\u0161anas tests<\/strong>. Re\u0101llaik\u0101 v\u0113rojiet aizdom\u0101s turam\u0101 p\u012b\u0137a v\u0113rt\u012bbu un p\u0101rtrauciet motora baro\u0161anu. Patiesa elektrisk\u0101 sast\u0101vda\u013ca uzreiz paz\u016bd<\/em> izsl\u0113g\u0161anas br\u012bd\u012b, jo magn\u0113tiskais sp\u0113ks izz\u016bd br\u012bd\u012b, kad apst\u0101jas str\u0101va, savuk\u0101rt meh\u0101nisk\u0101 sast\u0101vda\u013ca pak\u0101peniski samazin\u0101s, rotoram nosl\u012bdot uz leju. \u0160is moment\u0101n\u0101s izzu\u0161anas tests ir klasisks, nep\u0101rprotams veids, k\u0101 apstiprin\u0101t elektrisko izcelsmi, un tam nav nepiecie\u0161ams nekas vair\u0101k k\u0101 tikai tie\u0161raides spektra displejs un aptur\u0113\u0161anas poga.<\/p>\n

4. Elektrisk\u0101 disbalansa c\u0113lo\u0146i<\/h2>\n

Disbalansa avoti dabiski sadal\u0101s tr\u012bs sl\u0101\u0146os, s\u0101kot no t\u012bkla uz ma\u0161\u012bnu.<\/p>\n

Komun\u0101lo pakalpojumu pieg\u0101des probl\u0113mas<\/h3>\n

Pieg\u0101d\u0113 nesabalans\u0113t\u012bbu parasti izraisa nesabalans\u0113ti sadales transformatori, lielas vienf\u0101zes slodzes, kas piesl\u0113gtas vienai tr\u012bsf\u0101zu pakalpojuma f\u0101zei, nevienl\u012bdz\u012bga garu p\u0101rvades l\u012bniju pretest\u012bba vai pla\u0161\u0101ki komun\u0101lo pakalpojumu trauc\u0113jumi. Tie rada sprieguma nel\u012bdzsvarot\u012bbu, kas rodas, pirms str\u0101va non\u0101k \u0113k\u0101, un tos diagnostic\u0113, veicot m\u0113r\u012bjumus pie ieejas pakalpojum\u0101.<\/p>\n

Iek\u0101rtu izplat\u012b\u0161ana<\/h3>\n

Iek\u0101rtas iek\u0161ien\u0113 parastie vaininieki ir viens augstas pretest\u012bbas savienojums vien\u0101 f\u0101z\u0113, p\u0101rsists dro\u0161in\u0101t\u0101js, kas da\u013c\u0113ji zaud\u0113 f\u0101zi, nevien\u0101ds kabe\u013cu garums, kas nodro\u0161ina at\u0161\u0137ir\u012bgu vad\u012bt\u0101ju pretest\u012bbu, vai - gal\u0113j\u0101 gad\u012bjum\u0101 - vienas f\u0101zes zudums, proti, vienas f\u0101zes piln\u012bgs zudums. Visbie\u017e\u0101k sastopamais un visviegl\u0101k nov\u0113r\u0161amais iemesls ir atl\u016bzis vai sar\u016bs\u0113jis termin\u0101lis, un tas bie\u017ei vien izpau\u017eas k\u0101 nel\u012bdzsvarot\u012bba, kas slodzes ietekm\u0113, savienojumam sakarstot, pasliktin\u0101s.<\/p>\n

Ar motoru saist\u012bti iemesli<\/h3>\n

Ja baro\u0161ana ir p\u0101rbaud\u012bta k\u0101 l\u012bdzsvarota, bet str\u0101va nav l\u012bdzsvarota, vaina ir motora iek\u0161ien\u0113. \u012assavienojumi starp vijumiem samazina efekt\u012bvos vijumus vien\u0101 f\u0101z\u0113; ra\u017eo\u0161anas vari\u0101cijas var atst\u0101t tinumu pretest\u012bbas nedaudz nevienl\u012bdz\u012bgas; termin\u0101lu savienojumi pasliktin\u0101s; un da\u013c\u0113js \u012bssavienojums vai atv\u0113rts sl\u0113gums boj\u0101t\u0101 tinum\u0101 rada nopietnu asimetriju - tas viss p\u0101rkl\u0101jas ar pla\u0161\u0101kiem statora tinuma defekti<\/a>. Gaisa spraugas ekscentricit\u0101te - rotors nav centr\u0113ts urbum\u0101 - ir saist\u012bta ar elektromagn\u0113tisko c\u0113loni, kas rada savu nel\u012bdzsvarotu magn\u0113tisko vilkmi un bie\u017ei pavada tinuma probl\u0113mas.<\/p>\n

5. Ietekme uz motorisko veiktsp\u0113ju<\/h2>\n

P\u0101rkar\u0161ana<\/h3>\n

P\u0101rkar\u0161ana ir visnopietn\u0101k\u0101s sekas un meh\u0101nisms, kas izraisa dzin\u0113ju boj\u0101eju. Asimetrija rada negat\u012bvas sec\u012bbas str\u0101vas, kas izklied\u0113 papildu siltumu, bet viena f\u0101ze galu gal\u0101 p\u0101rvada daudz liel\u0101ku str\u0101vu, nek\u0101 tai bija paredz\u0113ts. Temperat\u016bras paaugstin\u0101\u0161an\u0101s ir nesam\u0113r\u012bga ar t\u0101s c\u0113loni: parasti tiek pie\u0146emts, ka 3% sprieguma nel\u012bdzsvarot\u012bba var rad\u012bt 18-25% tinumu temperat\u016bras paaugstin\u0101\u0161anos. T\u0101 k\u0101 izol\u0101cijas kalpo\u0161anas laiks samazin\u0101s aptuveni uz pusi uz katriem 10 \u00b0C papildu temperat\u016bras, rezult\u0101ts ir strauja izol\u0101cijas noveco\u0161an\u0101s un priek\u0161laic\u012bga boj\u0101\u0161an\u0101s - 3% sprieguma nel\u012bdzsvarot\u012bba var samazin\u0101t motora kalpo\u0161anas laiku pat uz pusi.<\/p>\n

Efektivit\u0101te, jaudas koeficients un ener\u0123ijas izmaksas<\/h3>\n

Nesabalans\u0113t\u012bba samazina efektivit\u0101ti, jo cirkul\u0113jo\u0161\u0101s un negat\u012bv\u0101s sekvences str\u0101vas neveic nek\u0101du lietder\u012bgu darbu, samazina jaudas koeficientu un palielina kop\u0113jo ener\u0123ijas pat\u0113ri\u0146u - tipiska m\u0113rena nesabalans\u0113t\u012bba samazina efektivit\u0101ti par 1-2%. Nep\u0101rtrauktas darb\u012bbas gada laik\u0101 papildu pat\u0113ri\u0146u ir viegli nov\u0113rt\u0113t par zemu. Tr\u012bsf\u0101\u017eu motora jaudas kalkulators<\/a> pal\u012bdz kvantitat\u012bvi noteikt papildu ieejas jaudu, ko nel\u012bdzsvarot\u012bba iz\u0161\u0137\u0113rd\u0113.<\/p>\n

Griezes momenta puls\u0101cijas un vibr\u0101cijas<\/h3>\n

Elektriski negat\u012bv\u0101s sekvences lauks rada puls\u0113jo\u0161u griezes momentu ar divk\u0101r\u0161u l\u012bnijas frekvenci, kas darbina v\u0113rpes vibr\u0101cija<\/a> sp\u0113ka p\u0101rvad\u0101 un var izrais\u012bt v\u0113rpes kust\u012bbu. rezonanses<\/a>. Radi\u0101l\u0101 virzien\u0101 par\u0101d\u0101s t\u0101da pati sp\u0113ka iedarb\u012bba k\u0101 iepriek\u0161 aprakst\u012bt\u0101 100\/120 Hz vibr\u0101cija, kuras amplit\u016bda ir proporcion\u0101la nel\u012bdzsvarot\u012bbas pak\u0101pei un kuru viegli sajaukt ar statora boj\u0101jumiem vai magn\u0113tisko vilkmi, jo tie visi darbojas vien\u0101d\u0101s elektrisk\u0101s frekvenc\u0113s.<\/p>\n

Samazin\u0101ts darbm\u016b\u017es un pazemin\u0101ta iztur\u012bba<\/h3>\n

Kopum\u0101 termisk\u0101 spriedze sa\u012bsina izol\u0101cijas kalpo\u0161anas laiku un piespie\u017e motoru ekspluat\u0113t zem t\u0101 nomin\u0101lv\u0113rt\u012bbas. NEMA \u0161o probl\u0113mu risina tie\u0161i ar samazin\u0101juma l\u012bkne<\/strong>: virs 1% sprieguma nel\u012bdzsvarot\u012bbas j\u0101samazina motora izmantojam\u0101 jauda, un pie 5% nel\u012bdzsvarot\u012bbas pazemin\u0101juma koeficients samazin\u0101s l\u012bdz aptuveni 0,75 - tas noz\u012bm\u0113, ka tiek upur\u0113ta ceturt\u0101 da\u013ca motora nomin\u0101l\u0101s jaudas, lai vienk\u0101r\u0161i saglab\u0101tu to termisk\u0101s robe\u017e\u0101s.<\/p>\n

6. NEMA un IEC sprieguma un str\u0101vas nel\u012bdzsvarot\u012bbas robe\u017ev\u0113rt\u012bbas<\/h2>\n

Pie\u013caujam\u0101s robe\u017eas nosaka divi standarti, un tajos tiek izmantotas nedaudz at\u0161\u0137ir\u012bgas defin\u012bcijas, t\u0101p\u0113c ir v\u0113rts preciz\u0113t, kuram no tiem atbilst m\u0113r\u012bjums.<\/p>\n

NEMA MG-1<\/strong> defin\u0113 sprieguma nel\u012bdzsvarot\u012bbu k\u0101 maksim\u0101l\u0101s novirzes no vid\u0113j\u0101 attiec\u012bbu pret vid\u0113jo (\u0161aj\u0101 rakst\u0101 izmantot\u0101 formula) un iesaka motorus darbin\u0101t ar baro\u0161anu, kur sprieguma nel\u012bdzsvarot\u012bba nep\u0101rsniedz 1% sprieguma nel\u012bdzsvarot\u012bba<\/strong>. Virs \u0161\u012bs v\u0113rt\u012bbas NEMA pieprasa, lai motora jauda tiktu samazin\u0101ta atbilsto\u0161i public\u0113tajai l\u012bknei; t\u0101 nep\u0101rprotami iesaka. pret<\/em> darbinot motoru, ja sprieguma nel\u012bdzsvarot\u012bba p\u0101rsniedz 5%.<\/p>\n

IEC<\/strong> izmanto simetrisko komponen\u0161u defin\u012bciju \u2014 negat\u012bv\u0101s sec\u012bbas sprieguma attiec\u012bbu pret pozit\u012bv\u0101s sec\u012bbas spriegumu \u2014 un nep\u0101rtraukt\u0101 darb\u012bb\u0101 parasti pie\u013cauj l\u012bdz aptuveni 2%<\/strong> nep\u0101rtraukt\u0101 darb\u012bb\u0101. Praks\u0113 sastopamaj\u0101m nelielaj\u0101m nel\u012bdzsvarot\u012bb\u0101m abas defin\u012bcijas sniedz l\u012bdz\u012bgus skait\u013cus, bet zi\u0146o\u0161anai un pie\u0146em\u0161anas test\u0113\u0161anai ir svar\u012bgi, kura no t\u0101m tiek izmantota.<\/p>\n

Attiec\u012bb\u0101 uz str\u0101vu nav vienas univers\u0101las robe\u017eas, ta\u010du pla\u0161i lietota lauka pamatnost\u0101dne ir uztur\u0113t str\u0101vas nel\u012bdzsvarot\u012bbu zem 10%<\/strong>, virs \u0161\u012bs robe\u017eas veikt izmekl\u0113\u0161anu, bet visu, kas to p\u0101rsniedz, uzskat\u012bt par att\u012bsto\u0161os defektu. T\u0101 k\u0101 pastiprin\u0101jums ir se\u0161as l\u012bdz desmit reizes, visefekt\u012bv\u0101kais veids, k\u0101 notur\u0113t str\u0101vas nel\u012bdzsvarot\u012bbu \u0161aj\u0101 diapazon\u0101, ir uztur\u0113t sprieguma nel\u012bdzsvarot\u012bbu zem NEMA 1% m\u0113r\u0137a. Motora datu pl\u0101ksn\u012btes str\u0101vas kalkulators<\/a> nor\u0101da paredzamo pilnas slodzes str\u0101vu, ar kuru sal\u012bdzin\u0101t katru f\u0101zi.<\/p>\n

7. Atkl\u0101\u0161ana un m\u0113r\u012b\u0161ana<\/h2>\n

Sprieguma un str\u0101vas r\u0101d\u012bjumi<\/h3>\n

S\u0101ciet ar elektriskajiem m\u0113r\u012bjumiem, kas veikti, motoram darbojoties pie norm\u0101las slodzes. Nolasiet tr\u012bs l\u012bnija-l\u012bnija spriegumus pie motora spailes<\/em> \u2014 nevis baro\u0161anas panel\u012b \u2014 lai tiktu fiks\u0113ts sprieguma kritums baro\u0161anas l\u012bnij\u0101s, p\u0113c tam apr\u0113\u0137iniet vid\u0113jo v\u0113rt\u012bbu un procentu\u0101lo novirzi. P\u0113c tam ar str\u0101vas knaibl\u0113m nolasiet katras f\u0101zes str\u0101vu un sal\u012bdziniet ar paredzamo nomin\u0101l\u0101 str\u0101va pie pilnas slodzes<\/a>, un apr\u0113\u0137iniet str\u0101vas nel\u012bdzsvarot\u012bbu. Abu v\u0113rt\u012bbu dokument\u0113\u0161ana un tenden\u010du uzraudz\u012bba laika gait\u0101 p\u0101rv\u0113r\u0161 vienreiz\u0113ju r\u0101d\u012bjumu agr\u012bn\u0101 br\u012bdin\u0101juma indikator\u0101.<\/p>\n

Vibr\u0101ciju anal\u012bze<\/h3>\n

Vibr\u0101cijas m\u0113r\u012bjumi apstiprina, vai elektrisk\u0101 nel\u012bdzsvarot\u012bba patie\u0161\u0101m ietekm\u0113 konstrukciju un cik liel\u0101 m\u0113r\u0101. Re\u0123istr\u0113jiet spektrs<\/a> pie motora r\u0101mja un mekl\u0113jiet paaugstin\u0101tu maksimumu tie\u0161i pie 100 Hz vai 120 Hz, sal\u012bdziniet t\u0101 amplit\u016bdu ar ma\u0161\u012bnas b\u0101zes l\u012bmeni un, izmantojot 3. noda\u013c\u0101 aprakst\u012btos frekvences precizit\u0101tes un jaudas atsl\u0113g\u0161anas testus, no\u0161\u0137iriet to no meh\u0101niskas 2\u00d7 komponentes, ko izraisa v\u0101rpstu nesakrit\u012bba. Divkan\u0101lu vibr\u0101cijas analizators<\/a> ar smalku spektr\u0101lo iz\u0161\u0137irtsp\u0113ju ir pareizais instruments, jo 100 Hz l\u012bnijas maksimuma no\u0161\u0137ir\u0161ana no 98-99 Hz meh\u0101nisk\u0101 maksimuma prasa iz\u0161\u0137irtsp\u0113ju, ko nevar nodro\u0161in\u0101t vienk\u0101r\u0161s visp\u0101r\u0113jais l\u012bme\u0146a m\u0113r\u012bt\u0101js.<\/p>\n

Termisk\u0101 uzraudz\u012bba<\/h3>\n

Visbeidzot, izm\u0113riet tinumu vai r\u0101mja temperat\u016bru un mekl\u0113jiet temperat\u016bras nel\u012bdzsvarot\u012bbu starp f\u0101z\u0113m vai kop\u0113jo temperat\u016bru, kas ir augst\u0101ka nek\u0101 pie\u013caujam\u0101 slodze. T\u0101 k\u0101 karstums ir meh\u0101nisms, ar kura pal\u012bdz\u012bbu disbalanss nodara kait\u0113jumu, termisk\u0101 anom\u0101lija bie\u017ei par\u0101d\u0101s l\u012bdztekus elektriskiem simptomiem vai pat pirms tiem.<\/p>\n

8. Diagnoze ar vibr\u0101cijas analizatoru<\/h2>\n

Lauka apst\u0101k\u013cos nel\u012bdzsvarot\u012bbas elektrisko parakstu nosaka prec\u012bza, no elektrot\u012bkla blo\u0137\u0113ta frekvence, un t\u0101s prec\u012bza noteik\u0161ana ir p\u0101rn\u0113s\u0101jama analizatora uzdevums. Divu kan\u0101lu instruments, piem. Balanset-1A<\/a> m\u0113ra vibr\u0101ciju motora r\u0101m\u012b un par\u0101da, vai domin\u0113jo\u0161ais maksimums atrodas pie ar t\u012bkla frekvenci piesaist\u012btajiem 100 Hz vai 120 Hz \u2014 kas nor\u0101da uz elektrisku c\u0113loni \u2014 vai pie 2 \u00d7 darba \u0101truma, kas dr\u012bz\u0101k nor\u0101d\u012btu uz v\u0101rpstu nesakrit\u012bbu. Iz\u0161\u0137iro\u0161ais apstiprin\u0101jums joproj\u0101m ir jaudas atsl\u0113g\u0161anas tests: kad ekr\u0101n\u0101 redzams re\u0101llaika spektrs, atsl\u0113dziet baro\u0161anu un v\u0113rojiet, vai aizdom\u012bgais maksimums uzreiz paz\u016bd, ja c\u0113lonis ir elektrisks, vai samazin\u0101s kop\u0101 ar rotoru, ja c\u0113lonis ir meh\u0101nisks. Motora elektrisko defektu frekvences kalkulators<\/a> uzskait\u012btas prec\u012bzas ar l\u012bniju saist\u012bt\u0101s frekvences - 2 \u00d7 l\u012bnija, polu s\u0101nu joslas un ar sl\u012bd\u0113\u0161anu saist\u012bt\u0101s komponentes -, kas j\u0101mekl\u0113, p\u0101rv\u0113r\u0161ot jucekl\u012bgo zemo frekven\u010du spektru par kontrolsarakstu.<\/p>\n

9. Korekcija, profilakse un uzraudz\u012bba<\/h2>\n

Baro\u0161anas puses nel\u012bdzsvarot\u012bbas kori\u0123\u0113\u0161ana<\/h3>\n

Ja nel\u012bdzsvarot\u012bba ir pie ieejas, sazinieties ar komun\u0101lo pakalpojumu sniedz\u0113ju; pret\u0113j\u0101 gad\u012bjum\u0101 boj\u0101jums ir \u0113k\u0101. P\u0101rbaudiet un nostipriniet visus sadales sist\u0113mas savienojumus, p\u0101rliecinieties, ka dro\u0161in\u0101t\u0101ji un sl\u0113d\u017ei ir neboj\u0101ti, p\u0101rdaliet vienf\u0101zes slodzes vienm\u0113r\u012bgi pa trim f\u0101z\u0113m un p\u0101rbaudiet transformatoru kr\u0101nu iestat\u012bjumus. P\u0101rsteidzo\u0161i liela da\u013ca iek\u0101rtu nel\u012bdzsvarot\u012bbas gad\u012bjumu nav nekas cits k\u0101 viena va\u013c\u012bga vai oksid\u0113ta spaile, kurai ir liel\u0101ka pretest\u012bba nek\u0101 t\u0101s kaimi\u0146iem.<\/p>\n

Motora puses probl\u0113mu labo\u0161ana<\/h3>\n

Ja baro\u0161ana ir p\u0101rbaud\u012bta un l\u012bdzsvarota, bet str\u0101va nav, vispirms not\u012briet un pievelciet motora spai\u013cu un kabe\u013cu savienojumus, p\u0113c tam p\u0101rbaudiet tinumu defektus, izmantojot izol\u0101cijas pretest\u012bbas un str\u0101vas signat\u016bras anal\u012bzi. Apstiprin\u0101ts iek\u0161\u0113js tinuma defekts noz\u012bm\u0113 motora p\u0101rt\u012b\u0161anu vai nomai\u0146u \u2014 \u012bssavienojumu starp vijumiem uz vietas salabot nevar.<\/p>\n

Jaudas samazin\u0101\u0161ana, uzst\u0101d\u012b\u0161ana un nep\u0101rtraukta uzraudz\u012bba<\/h3>\n

Ja nel\u012bdzsvarot\u012bbu nevar nov\u0113rst, iev\u0113rojiet NEMA jaudas samazin\u0101\u0161anas l\u012bkni un samaziniet slodzi, lai aizsarg\u0101tu tinumus, r\u016bp\u012bgi uzraugot temperat\u016bru. Nov\u0113rsiet atk\u0101rto\u0161anos uzst\u0101d\u012b\u0161anas laik\u0101, pirms iesl\u0113g\u0161anas p\u0101rbaudot sprieguma l\u012bdzsvaru motora spail\u0113s, izv\u0113loties vad\u012bt\u0101ju \u0161\u0137\u0113rsgriezumu t\u0101, lai samazin\u0101tu sprieguma kritumu, un apstiprinot pareizu zvaigznes vai tr\u012bsst\u016bra savienojumu. Ekspluat\u0101cijas laik\u0101 periodiski re\u0123istr\u0113jiet sprieguma un str\u0101vas r\u0101d\u012bjumus un iek\u013caujiet tos pla\u0161\u0101k\u0101 st\u0101vok\u013ca uzraudz\u012bba<\/a> rut\u012bnas ar tenden\u010du anal\u012bze<\/a>, nov\u0113rojiet, vai nav p\u0101rspr\u0101gu\u0161i dro\u0161in\u0101t\u0101ji vai izsl\u0113gti sl\u0113d\u017ei, un veiciet elektroener\u0123ijas kvalit\u0101tes apsekojumu, ja motora probl\u0113mas atk\u0101rtojas. Tas, ka nel\u012bdzsvarot\u012bba tiek uzskat\u012bta par parametru, kas j\u0101seko l\u012bdzi tendenc\u0113m, nevis par defektu, kas j\u0101nov\u0113r\u0161 p\u0113c boj\u0101juma, ne\u013cauj tai mier\u012bgi sa\u012bsin\u0101t visas motoru grupas dz\u012bves ciklu.<\/p>\n

10. Bie\u017e\u0101k uzdotie jaut\u0101jumi<\/h2>\n

K\u0101da ir at\u0161\u0137ir\u012bba starp sprieguma un str\u0101vas nel\u012bdzsvarot\u012bbu?<\/strong>
\nSprieguma nel\u012bdzsvarot\u012bba ir tr\u012bs baro\u0161anas spriegumu nevienl\u012bdz\u012bba, un parasti t\u0101 ir c\u0113lonis; str\u0101vas nel\u012bdzsvarot\u012bba ir tr\u012bs f\u0101\u017eu str\u0101vu nevienl\u012bdz\u012bba, un t\u0101 ir pastiprin\u0101ta ietekme. T\u0101 k\u0101 motora negat\u012bv\u0101s sekvences pretest\u012bba ir zema, neliela sprieguma nel\u012bdzsvarot\u012bba rada se\u0161as l\u012bdz desmit reizes liel\u0101ku str\u0101vas nel\u012bdzsvarot\u012bbu, t\u0101p\u0113c str\u0101va ir jut\u012bg\u0101ks agr\u012bn\u0101 br\u012bdin\u0101juma m\u0113r\u012bjums.<\/p>\n

K\u0101d\u0101 frekvenc\u0113 vibr\u0101cij\u0101 izpau\u017eas elektrisk\u0101 nel\u012bdzsvarot\u012bba?<\/strong>
\nPie divk\u0101r\u0161as t\u012bkla frekvences \u2014 100 Hz 50 Hz baro\u0161anas t\u012bkl\u0101 vai 120 Hz 60 Hz baro\u0161anas t\u012bkl\u0101 \u2014 jo negat\u012bv\u0101s sec\u012bbas lauks ar \u0161o frekvenci modul\u0113 gaisa spraugas magn\u0113tisko sp\u0113ku. Ar rotoru saist\u012bti elektriskie defekti pievieno s\u0101nu joslas ap 1 \u00d7 darba \u0101trumu pie sl\u012bdes-polu p\u0101rejas frekvences.<\/p>\n

K\u0101 at\u0161\u0137irt elektrisko nel\u012bdzsvarot\u012bbu no meh\u0101nisk\u0101s nel\u012bdzsvarot\u012bbas vai v\u0101rpstu nesakrit\u012bbas?<\/strong>
\nIzmantojiet izsl\u0113g\u0161anas testu: p\u0101rtrauciet darbojo\u0161\u0101 motora baro\u0161anu, vienlaikus v\u0113rojot spektru. Patiesa elektrisk\u0101 komponente paz\u016bd uzreiz, bet meh\u0101nisk\u0101 samazin\u0101s, rotoram br\u012bvgait\u0101 apst\u0101joties. Dro\u0161s elektriskais indikators ir ar\u012b elektrot\u012bkla frekvencei piesaist\u012bts p\u012b\u0137is tie\u0161i 100\/120 Hz frekvenc\u0113, kas nemain\u0101s l\u012bdz ar slodzi.<\/p>\n

K\u0101ds sprieguma nel\u012bdzsvarot\u012bbas l\u012bmenis ir pie\u013caujams?<\/strong>
\nNEMA MG-1 iesaka uztur\u0113t sprieguma nel\u012bdzsvarot\u012bbu zem 1% un virs \u0161\u012bs v\u0113rt\u012bbas prasa samazin\u0101t noslodzi, vienlaikus neiesakot ekspluat\u0101ciju virs 5%. IEC, izmantojot simetrisko komponentu defin\u012bciju, pie\u013cauj l\u012bdz aptuveni 2%. Uztur\u0113t sprieguma nel\u012bdzsvarot\u012bbu zem 1% ir visefekt\u012bv\u0101kais veids, k\u0101 uztur\u0113t str\u0101vas nel\u012bdzsvarot\u012bbu parasti izmantot\u0101s 10% lauka robe\u017eas robe\u017e\u0101s.<\/p>\n

K\u0101p\u0113c neliels sprieguma disbalanss izraisa tik lielu uzkar\u0161anu?<\/strong>
\nAsimetrija rada negat\u012bv\u0101s sec\u012bbas str\u0101vas, kas pl\u016bst pret motora zemo negat\u012bv\u0101s sec\u012bbas pretest\u012bbu, izklied\u0113jot papildu siltumu, kam\u0113r viena f\u0101ze ir p\u0101rslogota. 3% sprieguma nel\u012bdzsvarot\u012bba var paaugstin\u0101t tinuma temperat\u016bru par 18-25% un aptuveni uz pusi samazin\u0101t izol\u0101cijas m\u016b\u017eu.<\/p>\n

Vai portat\u012bvais vibr\u0101ciju analizators var noteikt elektrisko nel\u012bdzsvarot\u012bbu?<\/strong>
\nJ\u0101. Divkan\u0101lu analizators, piem\u0113ram, Balanset-1A, skaidri nosaka elektrot\u012bkla frekvencei piesaist\u012bto 100\/120 Hz p\u012b\u0137i, \u013cauj veikt izsl\u0113g\u0161anas testu un nolasa pola p\u0101rsl\u012bd\u0113juma s\u0101nu joslas, kas \u013cauj at\u0161\u0137irt baro\u0161anas puses nel\u012bdzsvarot\u012bbu no rotora boj\u0101juma - un tas viss bez atsevi\u0161\u0137a elektroener\u0123ijas kvalit\u0101tes instrumenta.<\/p>\n

\n

\u2190 Atpaka\u013c uz galveno indeksu<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Uzziniet par elektrisko disbalansu, nevienm\u0113r\u012bgu spriegumu vai str\u0101vu tr\u012bsf\u0101\u017eu motoru sist\u0113m\u0101s, kas izraisa p\u0101rkar\u0161anu, samazin\u0101tu efektivit\u0101ti un vibr\u0101ciju pie 2x t\u012bkla frekvences.<\/p>","protected":false},"featured_media":0,"template":"","meta":{"ai_generated_summary":"","footnotes":""},"categories":[109,111],"tags":[],"class_list":["post-112","glossary","type-glossary","status-publish","hentry","category-glossary","category-rotor-balancing"],"_links":{"self":[{"href":"https:\/\/vibromera.eu\/lv\/wp-json\/wp\/v2\/glossary\/112","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vibromera.eu\/lv\/wp-json\/wp\/v2\/glossary"}],"about":[{"href":"https:\/\/vibromera.eu\/lv\/wp-json\/wp\/v2\/types\/glossary"}],"version-history":[{"count":2,"href":"https:\/\/vibromera.eu\/lv\/wp-json\/wp\/v2\/glossary\/112\/revisions"}],"predecessor-version":[{"id":101554,"href":"https:\/\/vibromera.eu\/lv\/wp-json\/wp\/v2\/glossary\/112\/revisions\/101554"}],"wp:attachment":[{"href":"https:\/\/vibromera.eu\/lv\/wp-json\/wp\/v2\/media?parent=112"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vibromera.eu\/lv\/wp-json\/wp\/v2\/categories?post=112"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vibromera.eu\/lv\/wp-json\/wp\/v2\/tags?post=112"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}