I-Mitsubishi Elevator Power Circuit (PS) Umhlahlandlela wokuxazulula izinkinga

1 Uhlolojikelele

Isekethe ye-PS (Power Supply) ihlinzeka ngamandla abalulekile kumasistimu angaphansi kwekheshi, ahlukaniswe ngawoizinhlelo zamandla ezijwayelekilefuthiizinhlelo zamandla ezimo eziphuthumayo.

Izikhundla Zamandla Abalulekile

Amanothi:

• Amazinga kagesi angahluka ngemodeli yekheshi (isb, #79 kumakheshi anganamagumbi amancane afana no-#420 voltage).

• Ngaso sonke isikhathi bheka kumamodeli weminyuwali wezobuchwepheshe ukuze uthole imininingwane eqondile.

Amasistimu Amandla Ajwayelekile

1. Isekelwe ku-Transformer:

   • Okokufaka: 380V AC → Okukhiphayo: Ama-voltage amaningi e-AC/DC ngamawindi esibili.

   • Kufaka phakathi izilungisi zokuphuma kwe-DC (isb, i-5V yamabhodi okulawula).

   • Iziguquli ezingeziwe zingase zengezwe kumadivayisi okuhlalisa aphezulu noma izibani zokuphepha.

2. I-DC-DC Converter-Isekelwe:

   • Okokufaka: 380V AC → DC 48V → Kuguqulelwe kuma-voltage e-DC adingekayo.

   • Umehluko Obalulekile:

     • Amasistimu angenisiwe agcina amandla e-AC eziteshini zokufika/eziphezulu zemoto.

     • Amasistimu asekhaya aguqulela ngokugcwele ku-DC.

Amasistimu Amandla Ezimo Eziphuthumayo

• (M)ELD (Idivayisi Yokuhlalisa Okuphuthumayo):

  • Isebenza ngesikhathi sokucima kukagesi ukushayela ilifthi iye esitezi esiseduze.

  • Izinhlobo ezimbili:

    1. Ukuqalisa Kubambezelekile: Idinga ukuqinisekiswa kokuhluleka kwegridi; ihlukanisa amandla egridi kuze kube yilapho umsebenzi uqeda.

    2. Isipele Esisheshayo: Igcina i-voltage yebhasi ye-DC ngesikhathi sokuhamba.

Isekhethi yokushaja/yokukhipha

• Umsebenzi: Shaja/khipha ngokuphephile ama-capacitor esixhumanisi se-DC.

• Izingxenye:

  • Ama-resistors we-Precharge (umkhawulo wamanje we-inrush current).

  • Ama-resistors okukhipha (chitha amandla ayinsalela ngemva kokuvalwa).

• Ukuphatha Iphutha: BhekaMC Circuitisigaba sezinkinga zesistimu yokuvuselela kabusha.

I-Precharge Circuit Schematic

2 Izinyathelo Ezijwayelekile Zokuxazulula Inkinga

2.1 Amaphutha Esistimu Yamandla Avamile

Izinkinga Ezivamile:

1. I-Fuse/Circuit Breaker Tripping:

   • Izinyathelo:

     1. Nqamula isekhethi enephutha.

     2. Linganisa i-voltage emthonjeni wamandla.

     3. Hlola ukumelana nokufakwa kwe-insulation nge-megohmmeter (>5MΩ).

     4. Xhuma kabusha imithwalo ngayinye ngayinye ukuze uhlonze ingxenye enephutha.

2. I-Voltage Engavamile:

   • Izinyathelo:

     1. Hlukanisa umthombo wamandla bese ukala okukhiphayo.

     2. Kuma-transformer: Lungisa ompompi bokufaka uma i-voltage ichezuka.

     3. Kuziguquli ze-DC-DC: Faka esikhundleni iyunithi uma ukulawulwa kwamandla kagesi kwehluleka.

3. Ukuphazamiseka kwe-EMI/Noise:

   • Ukunciphisa:

     • Hlukanisa amakhebuli kagesi aphezulu/aphansi.

     • Sebenzisa umzila we-orthogonal emigqeni ehambisanayo.

     • Amathreyi ekhebula aphansi ukuze anciphise imisebe.

2.2 Amaphutha e-Precharge/Discharge Circuit

Izimpawu:

1. I-Voltage Engajwayelekile Yokushaja:

   • Hlola izinto ezimelana nokushajwa ngaphambi kwesikhathi ukuze uthole ukushisa ngokweqile noma amafuse ashisayo.

   • Linganisa ukwehla kwamandla kagesi kuzo zonke izingxenye (isb., ama-resistors, izintambo).

2. Isikhathi Esandisiwe Sokushaja:

   • Hlola ama-capacitor, ama-balance resistor, nezindlela zokukhipha amanzi (isb., amamojula okulungisa, amabhasi).

Izinyathelo Zokuxilonga:

1. Nqamula konke ukuxhumana kwe-DCP (DC Positive).

2. Linganisa okukhiphayo kwesekethe yokushajwa kwangaphambili.

3. Xhuma kabusha amasekhethi e-DCP ngokwandayo ukuze uthole izindlela zokuphuma okungajwayelekile.

2.3 (M)ELD Amaphutha Ohlelo

Izinkinga Ezivamile:

1. (M)I-ELD Yehlulekile Ukuqala:

   • Qinisekisa isignali yamandla engu-#79 phakathi nokuhluleka kwegridi.

   • Hlola amandla ebhethri nokuxhumana.

   • Hlola wonke amaswishi okulawula (isb. ekusethweni okuncane kwegumbi lomshini).

2. Okungajwayelekile (M)ELD Voltage:

   • Hlola impilo yebhethri namasekhethi wokushaja.

   • Kumasistimu anama-boost transformer: Qinisekisa ompompi bamandla okufaka/okukhiphayo.

3. Ukuvalwa Okungalindelekile:

   • Hlola ama-relay okuphepha (isb, #89) namasiginali wendawo yomnyango.

3 Amaphutha Ajwayelekile Nezixazululo

3.1 I-Voltage Abnormalities (C10/C20, H10/H20, S79/S420)

3.2 Ibhodi Lokulawula Ukwehluleka Ukuvula Ugesi

3.3 Ukulimala kwe-Transformer

3.4 (M)ELD Ukungasebenzi kahle

3.5 Izinkinga ze-Precharge/Discharge Circuit

Amanothi Amadokhumenti:
Lo mhlahlandlela uhambisana namazinga e-Mitsubishi elevator. Hlala ulandela izimiso zokuphepha futhi uthintane namamanyuwali wezobuchwepheshe ukuze uthole imininingwane eqondene namamodeli.

© Imibhalo Yezobuchwepheshe Yokulungisa Ikheshi