Yini okufanele ukumelana kwe-stator winding ye-asynchronous motor yesigaba ezintathu kubhekwe njengokujwayelekile kuye ngokuthi umthamo?(Mayelana nokusebenzisa ibhuloho nokubala ukumelana ngokusekelwe kububanzi bocingo, kuyinto engenakwenzeka kancane.) Kumamotho angaphansi kuka-10KW, i-multimeter ikala kuphela ama-ohm ambalwa. Ku-55KW, i-multimeter ikhombisa okweshumi okumbalwa. Ziba ukusabela kwe-inductive okwamanje. Enjinini exhunywe ngenkanyezi engu-3kw, i-multimeter ikala ukugoba kokujika kwesigaba ngasinye ukuze kube ngu-5 ohms (ngokuvumelana ne-nameplate yemoto, yamanje: 5.5A. Isici samandla = 0.8. Ingabalwa ukuthi Z=40 ohms, R = 32 ohms). Umehluko phakathi kwalokhu kokubili nawo mkhulu kakhulu.

Kusukela ekuqalisweni kwenjini kuya esigabeni sokuqala sokusebenza komthwalo ogcwele, injini isebenza isikhathi esifushane futhi izinga lokushisa alikho phezulu. Ngemva kokugijima ihora elingu-1, izinga lokushisa liyakhuphuka ngokwemvelo liye ezingeni elithile, ingabe amandla emoto azokwehla kakhulu ngemva kwehora elilodwa?Ngokusobala akunjalo!Lapha, ngithemba ukuthi abangani abanolwazi lukagesi bangathula ukuthi ulinganisa kanjani. Abangane nabo abadidekile lapho belungisa izinjini bangakutshela ukuthi ukuqonde kanjani?

Engeza isithombe ukuze ubone:

Ukumelana kwezigaba ezintathu ze-motor kukalwa ngale ndlela elandelayo:

1. Khulula ucezu oluxhumayo phakathi kwamatheminali enjini.

2. Sebenzisa ububanzi bokumelana okuphansi kwe-multimeter yedijithali ukukala ukumelana ekuqaleni nasekupheleni kwamawindi amathathu enjini. Ngaphansi kwezimo ezijwayelekile, ukumelana kwama-winding amathathu kufanele kulingane.Uma kunephutha, iphutha alikwazi ukuba likhulu kuno-5%.

3. Uma ukumelana nama-motor winding kukhulu kuno-1 ohm, kungalinganiswa ngebhuloho elinengalo eyodwa. Uma ukumelana nama-motor winding kungaphansi kuka-1 ohm, kungalinganiswa ngebhuloho elinezingalo ezimbili.

Uma kunomehluko omkhulu wokumelana phakathi kwama-motor windings, kusho ukuthi ama-motor windings aneziyingi ezimfushane, ama-circuits avulekile, i-welding engalungile kanye namaphutha enanini lokujika okujikayo.

4. Ukumelana nokufakwa kwe-insulation phakathi kwama-winding kanye nokumelana nokufakwa phakathi kwama-winding namagobolondo kungakalwa ngokuthi:

1) Injini engu-380V ikalwa nge-megohmmeter enobubanzi bokulinganisa obungu-0-500 megohms noma 0-1000 megohms.Ukumelana nokufakwa kwayo akukwazi ukuba ngaphansi kuka-0.5 megohms.

2) Sebenzisa i-megohmmeter enebanga lokulinganisa lama-megohm angu-0–2000 ukuze ulinganise i-motor-voltage ephezulu.Ukumelana nokufakwa kwayo akukwazi ukuba ngaphansi kuka-10-20 megohms.

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Isikhathi sokuthumela: Oct-15-2023