Sarkarwa na Tashin Karamin Kirkiya

Ko mai wani abokan karkashin kasa da ba ake gudana shi da jami'ar kasa. Idan an gudanta abokan karkashin kasa, zai iya shafi ingancin electromotive (EMF) zuwa zero, wanda yake zama sababinta fitaccen hanyoyi idan an gudanta shi da jami'ar kasa. Ingantaccen hanyoyin tsarin da alamun bayanai don tsaftace ita ce ta fi dace, musamman idan an ke gudanta wata alternator da na biyu ko kuma in gudanta alternator da jami'ar kasa mai tsawon.

Takaitaccen

• Hanyoyin Tsaftacen Da Ake Amfani Da Synchronising Lamps

• Muhimman Hanyoyin Dark Lamp Method

• Nayewataccen Hanyoyin Dark Lamp Method

• Three Bright Lamp Method

• Two Bright One Dark Lamp Method

A nan ne hanyoyin da ake amfani da su don tsaftacen ma'aikatoci:

Hanyoyin Tsaftacen Da Ake Amfani Da Synchronising Lamps

Za a iya amfani da takamatar synchronizing lamps uku don nemo masu shiga ga al'amuran da za a gudanta da wani abokin abokan kasa ko kuma don tsaftacen. Yana amfani da dark lamp method, da ake amfani da voltmeter, a cikin wannan. Wannan hali na da muhimmanci a gudanar abokan kasa na fadada.

Kafin hada, za a fara abokan kasa mai shiga da ka kara shi kusan karamin adadin lokaci. Ba baya, za a sanya ingancin field current ta abokan kasa mai shiga hingga muka ta da voltage na jami'ar kasa. Idan abokan kasa mai shiga ya haɗa da tsaftacen, za su iya yanayin synchronizing lamps su uku da yanayin da ya danganta da farkon frequency da abokan kasa mai shiga da jami'ar kasa. Idan phases suna daidai, za su iya yanayin dan lalace a matsayin waɗannan lamps su uku. Idan ba zan faru, yana nufin cewa phase sequence ba daidai.

Don in yi nasarar phase sequence, za a bar da abubuwa biyu daga line leads ta abokan kasa mai shiga. Ba baya, za a sanya frequency ta abokan kasa mai shiga hingga yanayin lamps su ya kadan da yanayin da ya danganta da farkon cycle da ya faru kadan da lokacin. Kafin voltage ta abokan kasa mai shiga ya zama daidai, za a kara synchronizing switch a wasu masu rike ta yanayin lamps su.

Muhimman Hanyoyin Dark Lamp Method

• Yanayi: Wannan hali na da yanayi a yi amfani da shi.

• Nemo phase sequence: Yana ba amincewar da nemo phase sequence daidai.

Nayewataccen Hanyoyin Dark Lamp Method

• Risk of false synchronization: Yanayin lamps su zai iya faru da voltage across them ya faru kadan da rated value. Wannan zai iya ba da synchronizing switch a kara kadan, har sai akwai phase difference da ya faru bayan machines.

• Vulnerability of lamp filament: Filaments ta lamps su zai iya kusa kai a lokacin yi amfani da su.

• Frequency indication limitation: Yanayin lamps su ba ta ba da bayanin cewa wani source (abokan kasa mai shiga ko jami'ar kasa) na da frequency mafi yawa.

Three Bright Lamp Method

A cikin three-bright-lamp method, za a kara lamps su across phases: A1 to B2, B1 to C2, and C1 to A2. Idan lamps su uku suna yanayin dan lalace a matsayin, yana nufin cewa phase sequence na daidai. Lokacin da ya da kyau don kara synchronizing switch shi ne a wasu masu rike ta yanayin lamps su.

Two Bright One Dark Lamp Method

A cikin wannan hali, za a kara wani lamp da kare phases, kuma biyu lamps su za a kara across remaining two phases, kamar yadda aka bayyana a cikin figure.

A cikin wannan hali, za a kara connections kamar haka: A1 to A2, B1 to C2, and C1 to B2. Kafin hada, za a fara abokan kasa mai shiga da ka kara shi kusan karamin adadin lokaci. Ba baya, za a sanya excitation ta abokan kasa mai shiga. Tun wannan adjustment, abokan kasa mai shiga zai iya yanayin voltages EA1, EB2, EC3, wanda suke daidai da busbar voltages VA1, VB1, and VC1 respectively. Diagram ta connection ya faru a cikin wannan.

Lokacin da ya da kyau don kara switch shi ne a lokacin da directly-connected lamp ya faru da cross-connected lamps su ke dan lalace. Idan phase sequence ba daidai, ba za a faru wannan lokacin; kafin ba, za su iya yanayin dan lalace a matsayin waɗannan lamps su uku.

Don in yi nasarar direction of rotation ta abokan kasa mai shiga, za a bar da abubuwa biyu daga line connections. Saboda state ta lamp da ya faru ya kai ne da yanayin voltage, za a kara voltmeter V1 across directly-connected lamp. Synchronizing switch za a kara kadan da reading ta voltmeter ya zama zero.

Kafin an kara switch, abokan kasa mai shiga ya zama daidai da jami'ar kasa a "floating" state, ya zama generator da ya zama ready don carry load. Amma, idan prime mover an kasa, abokan kasa zai iya yi amfani da electric motor.

A cikin power stations, idan an gudanta abokan kasa na fadada, za a amfani da combination ta synchronizing lamps uku da synchroscope. Amma, idan an gudanta abokan kasa na guda, za a yi wannan process na automatic da computer system, wanda yake da high precision and reliability.