Rikitar da Yawan Karamin Kirkiya

Limiteri Mai Amfani Da Tsakiya

Limiteri mai amfani da tsakiya shine coil mai induktansi da cewa yake da inganci mai induktansi a matsayin mutane masu shiga kafin haka. Ana gina shi don iya zama wani abubuwa da ke kula tsakitsakinsu a lokacin da akwai abin da ba. Waɗannan limiteri suna taimakawa wajen rage mutuwar suka duniyar da aka yi a juna na amfani. Suna da shi a wasu wurare da kuma a wasu wurare da ke haɗa, a wurare da mafi girman maza, da kuma a kan bus sections don in kula tsakitsakinsu da kuma rage mutuwar suka duniyar.

A lokacin da amfani ta yi daidai, waɗannan limiteri suna bayar da amfani da baya. Amma a lokacin da akwai abin, limiterin ya kula abin zuwa wurin da aka bi abin. Saboda resistance na system ya fi yawa da kuma induktansi, babu inganci mai yawa a kan efficiency ta system daga cewa ana da shi limiteri.

Funkar Gaba Limiteri Mai Amfani Da Tsakiya

Funkar gaba limiteri mai amfani da tsakiya shine ya kula amfani da tsakiya idan an sanya da tsakitsakinsu masu yawa. Idan tsakitsakinsu ya kawo karshen uku da rated full-load current, ana amfani da iron-cored reactors da kusa masu yawa don kula tsakitsakinsu. Amma saboda cost da kuma weight masu yawa suna da iron cores, air-cored reactors ne suna da mu'amala a duk fannon da ake amfani a lokacin da an bukata kula tsakitsakinsu.

• Iron-Cored Reactors: Suna da hysteresis da kuma eddy current losses, wanda ke kula amfani masu yawa.

• Air-Cored Reactors: Suna da total losses kusan 5% daga KVA rating, wanda ke taimaka maka masu daidai.

Funkar Limiteri Mai Amfani Da Tsakiya

• Farkon Tsakitsakinsu: Yana kula tsakitsakinsu don in taimaka wajen samun abubuwan da ke samu stress da kuma yanayi.

• Rage Mutuwar Suka Duniyar: Yana rage mutuwar suka duniyar da aka yi a lokacin da akwai abin.

• Farkon Abin: Yana kula abin zuwa wurin da aka bi abin, baki da shi zama da wurare da suka da amfani da kuma in daɗe amfani.

Muhimmanci Limiteri Mai Amfani Da Tsakiya

• Yana kula percentage masu reactance ta circuit idan an da shi a network.

• Yana rage power factor da kuma yana kula voltage regulation issues.

Inganci Na Limiteri A Juna Na Amfani

Limiteri suna da shi a series da generators, feeders, ko kuma bus bars don kula tsakitsakinsu:

• Generator Reactors: An da shi a kan generators da generator buses don in taimaka wajen samun protection, kamar yadda ake nufin ~0.05 per unit.

• Muhimmanci: Akwai abin a wurin da za su iya tabbatar da dukkan system saboda shared reactor configuration.

Muhimmanci Limiteri Masu Haka

Muhimmanci limiteri masu haka shine koyarren: ba su taimaka generators wajen farkon tsakitsakinsu da aka yi a kan bus bars, da kuma suna kula voltage drops da kuma power losses a lokacin da amfani ta yi daidai.

Bus-Bar Reactors

Idan an da shi limiteri a bus bars, suna nufin bus-bar reactors. In da shi limiteri a bus bars yana taimaka wajen rage constant voltage drops da kuma power losses. Tarihin bus-bar reactors a ring systems da kuma tie systems:

Bus-Bar Reactors (Ring System)

Bus-bar reactors suna da shi don in taimaka wajen haɗa bus sections, wadanda suka da generators da feeders da suka haɗa a common bus bar. A wannan configuration, kowace feeder ya kula shi generator. A lokacin da amfani ta yi daidai, akwai amfani masu yawa da ke biyo shi a kan reactors, wanda ke rage voltage drops da kuma power losses. Don in rage voltage drops, bus-bar reactors suna da high ohmic resistance.

Idan akwai abin a wurin, generator guda guda ya kula fault current, amma current daga generators masu sa ya kula shi bus-bar reactors. Wannan yana kula heavy current da kuma voltage disturbances da aka yi a lokacin da akwai abin a bus section, wanda ke rage shi zuwa wurin da aka bi abin. Muhimmanci limiteri masu haka shine ba su taimaka generators da suka haɗa a kan faulted section.

Bus-Bar Reactors (Tie-Bus System)

Wannan shine canza na system. A tie-bus configuration, generators suna haɗa a common bus bar via reactors, da feeders suna haɗa a kan generator side.

System yana yi daidai da ring system, amma yana da fa'idodi masu yawa. A wannan configuration, idan number of sections ya zama, fault current ba za su kawo karshen adadin, wanda ke nufin da cewa an samun shi daga specifications of individual reactors.