Kadda a Zabba da Ƙoƙarin Electric Motors: 6 Maimaitoci Na Kusa

"Zabi Da Mote Ta Gaskiya" – Tattauna Kalmomin Daga Rima

• Kwara (Tafi): Tabbata shaida na mote
  Yawan da ke cikin shaida na mote yana iya zama mai kula da kuma mai kyau. An fi sani da tashar da ya dace da rubutu mai kyau, wanda yake da: model number, serial number, rated power, rated current, rated voltage, allowable temperature rise, connection method, speed, noise level, frequency, protection rating, weight, standard code, duty type, insulation class, manufacturing date, and manufacturer. Don mote masu rukunin fadin, an tabbatar da ce fina-finan hanyar jiki su suna da gaskiya da kuma babban da ba ta da nasarawa.

• Jira: Jira shaft na mote bili-bilin
  Mote mai gaskiya yana iya jira da kyau da kuma daidai ba da nasarawa ko lafiya. Yana da kyau da kuma yawanci da aka fito (endplay) yana da damar yiwuwa.

• Dingi: Dingi wasu na mote a lokacin da ake amfani da shi
  Kara mote da ake amfani da shi na 15–25 minutsu. Mote mai kyau yana iya karu da wasu mai kyau, da kuma daidai. Zan iya samun wasu mai kyau da kuma mai kyau. Idan an samu wasu mai kyau da kuma mai kyau, wannan yana nufin cewa mote ba da gaskiya ba.

• Kashe: Kashe mote bayan ake amfani da shi
  Bayan ake amfani da mote da kuma ake stopshi, kashe frame na mote da kuma end shields. Ba za su da tsari da kuma tsari na bearing yana da kyau. Tabbata da abubuwan da ake koyar da ruwa ko oil throw.

• Tattauna: Bude terminal box da tafin wiring
  Tabba da cewa labels na phase wire su da kyau da kuma daidai. Sabon duk links da ake amfani da su da nuts da suka haɗa. Ya kamata ake bayar da grounding bolt.

• Test: Cika resistance da current
  Amfani da 500V megohmmeter don cika resistance na insulation bayan phases da kuma bayan har phase da frame. Mote mai kyau yana da resistance na insulation da yake da 0.5 MΩ. A lokacin da ake amfani da shi, amfani da clamp meter don cika no-load current bayan har phase. Current na har phase ba za su dogara da 10% daga average na three phases. No-load current yana da 25%–50% na rated current.

Mahimmancin Tafin Mote na Yawanci da Karkashin Kiyaye
Amsa da ake amfani da machinery yana iya zama mai muhimmanci ga performance na mote. Saboda haka, kiyaye na mote yana da mahimmanci. Wannan mutane da ba su ka kiyaye ko ba su jan kiyaye—kawai sun fi sanin mahimmancinsu idan mote yana lalace da kuma an yi kiyayen da suke rage da kuma maimaita aiki. Kiyaye na daidai yana da mahimmanci.

Kiyaye na Mote
Ma'anarsa na kiyaye na mote yana da kiyaye burnout. Ana iya amfani da hanyoyin da ake bincike da za su iya:

• Kiyaye equipment na starter da kyau
  Akwai motoci da su lalace saboda startup na nan da kuma faulty, kamar phase loss da ake samu saboda performance na starter da ba da kyau. Arcing ko sparking contacts zai iya zama da fluctuations na voltage da kuma current. Don a kiyaye equipment na starter da kyau: tafin da kyau, clean, da kuma haɗa components. Contacts na contactor da su da kasa ko oxidized zai iya zama da resistance na contact, wanda zai iya zama da overheating da kuma arcing, wanda zai iya zama da phase loss da kuma burnout na windings. Rust ko dust na coil core na contactor zai iya zama da engagement da ba da kyau, wanda zai iya zama da loud noise da kuma increase na coil current, wanda zai iya zama da burnout na coil. Saboda haka, panels na electrical control zai iya zama da kyau a wurare da kasa, ventilation, da kuma accessibility. Tafin da kyau dust da kuma contacts. Add rust prevention na coil core. Haɗa duk connections da kuma tabbatar da contacts na contactor suka haɗa. Operations na mechanical yana da kyau da kuma accuracy—wadannan ne da suka buƙata don startup na mote da kyau.

• Kiyaye mote da kyau da kuma tabbatar da cooling da kyau
  Inlet na mote yana da kyau da cewa yana da kyau da kasa. Ba za su da dust, oil, straw, ko debris a kan intake, saboda hakan zai iya zama da internal short circuits, damage winding insulation, ko blocking airflow da kuma zama da overheating da kuma burnout.

• Amfani da mote a cikin rated current; sake overload
  Overloading zai iya zama da speed da take rage, current da take ci, da kuma temperature da take ci. Dalilai na wannan sun haɗa load na biyu, low voltage, ko mechanical jamming. A lokacin da overload, mote zai iya draw power da take ci, wanda zai iya zama da current da take ci da kuma temperature da take ci. Tsarin high temperatures da take ci zai iya zama da aging na insulation da kuma zama da burnout na windings—wanda yake da primary cause na failure na mote. Saboda haka: tafin da kyau system na transmission don amsa da kuma reliability; sake overload machinery da take ci; da kuma maintain stable voltage—ba a amfani da low voltage ba.

• Maintain balanced phase currents

• Kiyaye temperature da kuma temperature rise a cikin limits na normal
  A lokacin da ake amfani da shi, tafin da kyau temperature na bearings, stator, da kuma housing. Wannan yana da kyau wa motoci da ba su da overload protection. Idan bearings ba da lubrication ko suka lalace, temperature zai ci, musamman a cikin area na bearing. Tabbatar da mote da kuma tafin da kyau. Amfani da lubricant; idan ba da kyau, remove da kuma tafin da kyau bearing. Replace idan an samu cracks, scratches, ko damage a rolling elements ko raceways, idan clearance da take ci, ko idan inner ring yana rotate a cikin shaft. Wannan conditions zai iya zama da failures na major kamar rotor-stator rubbing (scraping). Don a monitor temperature, insert thermometer a vent na mote da kuma secure shi da cotton—wanda zai iya zama da continuous monitoring. Temperature difference bayan inside da outside na housing yana da 1°C.

• Identify da kuma address abnormalities da kyau
  A lokacin da ake amfani da shi, mote ba za su da vibration, unusual noise, ko odors. Wadannan ne key signs na abnormal operation da kuma potential major failures. Detecting da kuma resolving issues da kyau yana da kyau don a sake fault escalation da kuma burnout na mote.