Me kuke so ku haɗa ɗaya daga ɗaya cikin jerin gida na 500mw a matsayin yadda ake?

Har zuwa babban hanyar na biyu ɗaya da kungiyoyin 500MW ya ba da hukuma masu yawan ƙarin da kuma samun shawara:

Tattaunawa ta gaba

Nufin aiki

Yin nufin ƙarin akan kungiyoyi daban-daban, tare da stator, rotor, windings, insulation da sauransu, don haske cewa karkashinsa mai karfi ne, siffofinsa mai tsabta ne, da kuma bai wani abubuwan da suka faru ko da damu. Misali, nufin idan akwai short circuits ko open circuits a cikin stator windings, da kuma idan rotor yana zama ta hanyar.

Bayyana cewa na'urar kontrollo na kungiya, al'amuran da suke magance, da sauransu za su iya yi aiki daidai. Misali, overcurrent protection, overvoltage protection, undervoltage protection da sauransu suna buƙata da kuma haɗaɓe a fina ƙarin don haske cewa za su iya yi aiki daidai a lokacin har zuwa babban hanyar da kuma magance ƙaramin kungiyar.

Tattaunawa masu gwamnati

Bayyana masu gwamnati mai ma'ana. Gwamnatin ya kamata da fadin da ya fi kyau don kuɗa kungiyoyi uku da kuma abubuwan da suke so in har zuwa babban hanyar, da kuma haske cewa an yi fada ta hanyar don taimaka waɗanda suka zama ta hanyar a lokacin kuɗa kungiyar.

Sakamako da jirgin gwamnati don haske cewa kungiyar zai zama ta hanyar a lokacin ƙoƙari, da kuma iya dogara cewa bai zama ta hanyar ba saboda jirgin da ba da ma'ana ko jirgin da ba da ma'ana.

Samun shawara masu har zuwa babban hanyar

• Dangantaka masu yawan sama: Nufin cewa dangantakan kungiyoyi uku suke da yawan sama. Ana iya amfani da wuraren dangantaka masu yawan sama don nufin yawan dangantaka. Idan yawan dangantaka ba daidai, ana buƙata kable da ke cikin kungiya don haske cewa dangantakan A, B, da C suke da yawan sama. Misali, zaka wurar dangantaka masu yawan sama zuwa terminal na ci gaba na kungiya, da kuma bayyana idan yawan dangantaka daidai da koyar. Idan ba daidai, zaka ƙarfin dangantaka biyu zuwa terminal na ci gaba na kungiya don haɗaɓe yawan dangantaka.

• Faduwar sama: Haɗaɓe faduwar kungiyoyi uku zuwa faduwar da aka bayyata don haske cewa faduwar da suke fito suke da yawan sama. Yanzu, an buƙata cewa faduwar da aka fito suke da yawan sama tun ±0.5Hz. Tare da haɗaɓe governor na prime mover (misali, diesel engine, steam turbine, da sauransu) na kungiya, faduwar kungiyar zai zama ta hanyar. Ana iya amfani da frequency meter don nufin faduwar da aka fito daga kungiya hingga faduwar kungiyoyi uku suka da yawan sama.

• Kofin sama: Haɗaɓe kofin excitation na kungiyoyi uku don haske cewa kofin da suke fito suke da yawan sama. Yanzu, an buƙata cewa farkon kofin da aka fito suke da yawan sama tun ±5%. Amfani da voltmeter don nufin kofin da aka fito daga kungiya, da kuma haɗaɓe kofin da aka fito daga kungiya tare da haɗaɓe kofin excitation system don haske cewa an samun shawara masu har zuwa babban hanyar. Misali, idan kofin da aka fito daga kungiya ya fi kadan, zaka kofin excitation ta kadan don kudanci kofin; na'aman, idan kofin ya fi ƙarfin, zaka kofin excitation ta ƙarfin don kadan kofin.

• Dangantaka sama: Wannan shine shawaran mafi yawan muhimmanci. Ya kamata a haske cewa dangantakan kofin kungiyoyi uku suke da yawan sama. Ana iya amfani da synchronous indicators don nufin dangantaka. A lokacin haɗaɓe faduwar da kuma kofin, nuna pointer ko light signal na synchronous indicator. Idan pointer ya nuna synchronous position ko light signal ya nuna cewa dangantakan suke da yawan sama, wannan shine cewa dangantakan kungiyar ya da yawan sama da shawara masu har zuwa babban hanyar.

Har zuwa babban hanyar

• Ƙoƙari parallel connection cabinet: Idan ya fi kyau, ana rarrabe amfani da parallel connection cabinet don har zuwa babban hanyar na kungiyoyi. Parallel connection cabinet tana da switches, contactors, protection devices da sauransu, wanda za su iya taimaka waɗanda suke har zuwa babban hanyar da kuma kontrollo na kungiyoyi. Haɗaɓe kable na ci gaba na kungiyoyi uku zuwa input terminals na parallel connection cabinet. Bayyana cewa ƙarfin kable ya fi kyau don haske cewa an samun shawara masu har zuwa babban hanyar, da kuma haɗaɓe kable ta hanyar don taimaka waɗanda suke haɗaɓe poor contact.

• Har zuwa babban hanyar da karamin yawan daidai: Idan ba a kan parallel connection cabinet, ana iya haɗaɓe output terminals na kungiyoyi uku da karamin yawan daidai, amma wannan hukuma ya kamata ƙarfin ƙarin. Kafin ƙara, zaka output switches na kungiyoyi uku, da kuma haɗaɓe phase A, phase B, da phase C na kungiyoyi uku da karamin yawan daidai. Haɗaɓe points ta hanyar da kuma inganci. A lokacin haɗaɓe, nuna cewa an yi fada ta hanyar don taimaka waɗanda suke haɗaɓe short circuit accidents.

Debugging da testing

• No-load debugging: A cikin ƙarshen har zuwa babban hanyar, zaka karkashin load zuwa lokacin da ake yi no-load debugging. Bade kungiyoyi uku, da kuma nufin cewa aikinsu mai tsabta ne, tare da faduwar, kofin, faduwar, da sauransu, da kuma idan akwai abubuwan da suka faru misali, vibrations, noises, da sauransu. Duk da cewa, nufin cewa haɗaɓe na parallel circuit ta hanyar, da kuma idan akwai abubuwan da suka faru misali, heating, arcing, da sauransu.

• Load test: Idan no-load debugging ya zama daidai, ana iya ƙara load tare da yawan ƙarin don load testing. Nuna cewa kofin da faduwar da aka fito daga kungiya za su iya zama daidai, da kuma idan distribution na load a cikin kungiyoyi uku za su iya zama daidai. Ana iya amfani da power analyzers don nufin parameters misali, output power, current, da power factor na kungiya don haske cewa kungiya za su iya zama daidai a lokacin har zuwa babban hanyar.

A lokacin ƙarshen har zuwa babban hanyar, ya kamata a yi wa electrical engineers ko technicians masu ilimi, da kuma haske cewa a yi wa safety specifications da operating procedures masu daidai don haske cewa ƙarshen har zuwa babban hanyar ya zama daidai da kuma safe. Idan ba a san ƙarshen har zuwa babban hanyar, ko kuma a san ƙarshen har zuwa babban hanyar, ana rarrabe a yi simulation experiments ko kuma a tuntuɓi professional power companies ko equipment manufacturers.