Me kana da Induction Motor Rotor?

Mai yin wani rotor na induction motor?

Tushen rotor na induction motor

Rotor shi wani babban mutanen motor da kuma darajar ta hanyar magana mai sauki.

Nau'o'i rotor

• Rotor na squirrel cage

• Rotor na wound

Fasahohi rotor na squirrel cage

A nan nau'o'in rotor, rotor winding ya kunshi masu amfani da kan conductors da suka fi sune a wurare semi-closed slots a cikin form na copper ko aluminum strips a cikin laminated rotor core. Don in ba da tsari da zaka iya samun path na biyu a cikin circuit na rotor, duk fadada rotor rod suna fito suke a cikin end ring.

Fasahohi rotor na squirrel cage

Wani nau'o'in rotor bai da adadin poles na musamman, amma har zuwa inda, rotor zai iya tafi sama adadin stator poles. Saboda haka, don rotor na squirrel cage don in yi karfi da starting torque, muna bukatar in yi karfi da rotor resistance tare da a gudanar resistor a cikin series da rotor winding. Amma bai za a iya bayar wannan a rotor na squirrel cage saboda rotor rod suna fito suke a cikin end ring. Saboda haka, rotor na squirrel cage ya da kyakkyawan yin kwace, amma batun yin duniya.

Kasuwanci rotor na squirrel cage

• Starting torque da ke da ma'ayin

• Starting current da ke da ma'ayin

• Power factor da ke da ma'ayin

Rotor rod na skewed

Rotor rods na skewed suna kasance matsayin lokacin, wanda ya kasance resistance, kuma ya karfi da starting torque. Resistance ana da alaka da lokaci, saboda haka lokaci mai yawa yana nufin resistance mai yawa da karfin torque.

Rotor na winding ko slip-ring rotor

Wani nau'o'in rotor yana da laminated cold-rolled grain-oriented silicon steel don in haɗa eddy current losses da hysteresis losses. Rotor windings suna daƙi a wurare short intervals don in samun electromotive force output na sinusoidal.

Induction motors ba su iya ba idan adadin stator poles da rotor poles ba su duka, kuma wani nau'o'in rotor ba su iya tabbatar da canza daga adadin stator poles. Saboda haka, adadin rotor poles ya kamata ce adadin stator poles.

Idan rotor an amfani da 3-phase winding; Ba su iya duba star connections ko triangle connections, rotor windings ya kamata ce star connections.

Fasahohi rotor na winding ko slip-ring rotor

• Yawan farko da rotor na squirrel cage da rotor na wound shine presence of a slip ring a rotor na wound, saboda haka ankeke ake kira rotor na slip ring. Saman terminal na uku da ke amfani da rotor winding na star an fito suke da external resistor through the slip ring.

• Slip rings suna da high-resistance materials, kamar phosphor bronze ko brass. Brush contacts an amfani da su don in taka rotor windings zuwa external circuit, kuma brushes suna da carbon ko copper material, amma carbon an fi sani saboda properties na self-lubricating. Saboda haka, friction loss na carbon brush ya da ma'ayin.

• Don in karfi da starting torque, an amfani da external resistor. External resistor ya haɗa starting current da motor an yi a kansa. Saboda haka, power factor ya zama da kyakkyawan.