Ƙarshen jagora don zaɓar madaidaicin da'ira don babban janareta na diesel

Zaɓan madaidaicin madaurin kewaya don naka babban janareta dizal yana da mahimmanci don tabbatar da aminci da ingantaccen aiki. Wannan cikakkiyar jagorar za ta bi ku ta cikin mahimman abubuwan la'akari lokacin zabar na'ura mai rarrabawa, yana taimaka muku kare kayan aikin wutar lantarki mai mahimmanci da kiyaye ingantaccen wutar lantarki. Daga fahimtar buƙatun ƙima zuwa kwatanta nau'ikan masu karyawa daban-daban da ƙididdige magudanar ruwa, za mu rufe duk abin da kuke buƙatar sani don yanke shawara mai fa'ida don buƙatun wutar lantarki na masana'antu, kasuwanci, ko gaggawa.

Wane irin girman da'ira nake buƙata don janareta dizal 2000kW?

Ƙayyade madaidaicin girman daftarin da'ira don 2000kW babban janareta dizal yana buƙatar yin la'akari da hankali akan abubuwa da yawa. Babban abin da ke damun shi shine tabbatar da cewa mai karya zai iya ɗaukar matsakaicin matsakaicin fitarwa na yanzu na janareta ba tare da tatsewa yayin aiki na yau da kullun ba yayin da yake ba da cikakkiyar kariya daga nauyi da gajerun kewayawa.

Ana lissafin Amperage da ake buƙata

Don tantance girman da'irar da ya dace, kuna buƙatar ƙididdige iyakar abin da ake fitarwa na janareta na yanzu. Ga janareta 2000kW da ke aiki a 480V (wani irin ƙarfin lantarki na yau da kullun don aikace-aikacen masana'antu), lissafin zai zama:

Yanzu (Amps) = Wuta (Watts) / (Voltage × √3 × Factor Power)

Ɗaukar nauyin wutar lantarki na 0.8, wanda ya saba da yawancin shigarwa:

Yanzu = 2,000,000 / (480 × √3 × 0.8) ≈ 3,005 Amps

Zaɓan Ƙididdiga na Breaker

Idan aka ba da wannan lissafin, kuna buƙatar na'urar da aka ƙididdige ta aƙalla Amps 3,005. Koyaya, daidaitaccen al'ada ne don zaɓar mai karyawa tare da ƙima kaɗan sama da ƙimar ƙididdigewa don ƙididdige ƙima na ɗan lokaci da kuma hana ɓarna. A wannan yanayin, 3,200 Amp breaker zai zama zaɓi mai dacewa.

Yana da mahimmanci a lura cewa zaɓi na ƙarshe yakamata yayi la'akari da abubuwa kamar yanayin yanayi, tsayi, da kowane takamaiman buƙatun tsarin lantarki ko lambobin lantarki na gida.

Masu watsewar iska vs. na'urorin da aka ƙera don masu janareta masu nauyi

Idan ana maganar kare manyan injinan dizal, ana amfani da manyan nau'ikan na'urorin da'ira biyu: Air circuit breakers (ACBs) da molded case circuit breakers (MCCBs). Kowannensu yana da ƙarfinsa kuma ya dace da aikace-aikace daban-daban.

Masu satar iska (ACBs)

Yawanci ana amfani da ACBs don manyan aikace-aikace na yanzu, yana mai da su dacewa da manyan injinan dizal. Suna bayar da fa'idodi da yawa:

• Babban ƙarfin katsewa: ACBs na iya ɗaukar igiyoyin kuskure har zuwa 150,000 Amps ko fiye.
• Saitunan tafiya masu daidaitawa: Wannan yana ba da damar daidaita daidaituwa tare da sauran na'urorin kariya a cikin tsarin.
• Sauƙin kulawa: Ana iya bincika ACB cikin sauƙi da kiyayewa, tare da saitunan tuntuɓar masu maye gurbinsu.
• Rayuwar sabis mai tsayi: Tare da ingantaccen kulawa, ACBs na iya ɗaukar shekaru da yawa.

Molded Case Circuit breakers (MCCBs)

MCCBs sun fi ƙaranci kuma gabaɗaya ba su da tsada fiye da ACBs. Sun dace da ƙananan janareta ko azaman masu karyawa a cikin babban tsari. Amfanin sun haɗa da:

• Karamin girman: MCCBs suna ɗaukar sarari kaɗan a cikin maɓalli ko sassan rarrabawa.
• Ƙananan farashi: Gabaɗaya mafi araha fiye da ACBs, musamman don ƙananan ƙimar halin yanzu.
• Sauƙaƙe shigarwa: Sau da yawa sauƙin shigarwa da maye gurbin fiye da ACBs.
• Thermal-magnetic ko lantarki raka'a balaguro: Ba da kariya daga duka abubuwan da suka wuce kima da gajerun kewayawa.

Zabar Tsakanin ACBs da MCCBs

Ma manyan injinan dizal a cikin kewayon 2000kW, ACBs galibi sune zaɓin da aka fi so saboda girman iyawar su na yanzu da abubuwan ci gaba. Koyaya, yanke shawara na ƙarshe yakamata yayi la'akari da abubuwa kamar:

• Girman janareta da fitarwa
• Matakan kuskuren da ake tsammani
• Bukatun daidaita tsarin
• Matsalolin sararin samaniya
• La'akari da kasafin kudin
• Lambobin lantarki na gida da ma'auni

Yadda za a lissafta gajeriyar kewayawa don kariyar janareta?

Daidaitaccen ƙididdige gajeren lokaci yana da mahimmanci don ƙima mai kyau da zaɓin na'urorin da'ira don manyan janareta na diesel. Wannan lissafin yana tabbatar da cewa na'urorin kariya za su iya katse igiyoyin kuskure cikin aminci ba tare da lahani ga janareta ko tsarin lantarki ba.

Abubuwan Da Suka Shafi Gajeran-Circuit Yanzu

Abubuwa da yawa suna tasiri ga gajeriyar kewayawa a cikin tsarin janareta:

• Rashin ƙarfin janareta
• Tsarin wutar lantarki
• Batun kuskure a cikin tsarin
• Gudunmawa daga wasu tushe (idan an zartar)
• Halayen lalacewa na filin maganadisu na janareta

Hanyar Lissafi

Don ƙididdige gajeren zangon halin yanzu, bi waɗannan matakan:

1. Ƙayyade reactance mai jujjuyawar janareta (X"d) daga bayanan masana'anta.
2. Yi ƙididdige maƙasudin tushe na janareta (Zbase) ta amfani da dabara: Zbase = kV² / MVA
3. Maida martani mai jujjuyawa zuwa kowace raka'a: X"d (pu) = X"d / Zbase
4. Ƙirƙirar farkon gajeriyar kewayawa na yanzu: I"k = 1 / X"d (pu) × In
5. Asusu don asymmetry ta hanyar ninka I"k ta hanyar 1.6 zuwa 2.0, ya danganta da rabon X/R na tsarin.

Misali, la'akari da janareta 2000kW tare da sigogi masu zuwa:

• Awon karfin wuta 480V
• X"d: 12%
• Cikakken kaya na yanzu (A): 3,005A (ƙididdiga a baya)

Lissafin zai ci gaba kamar haka:

1. Zbase = 0.480² / 2 = 0.1152 Ω
2. X"d (pu) = 0.12 / 0.1152 = 1.0417 pu
3. I"k = 1 / 1.0417 × 3,005 = 2,885A
4. Asymmetrical gajeriyar kewayawa na yanzu: 2,885 × 1.8 = 5,193A

Wannan ƙimar da aka ƙididdige tana wakiltar matsakaicin matsakaicin ɗan gajeren zango wanda dole ne mai watsewar kewayawa ya iya katsewa cikin aminci.

A Jlmech, mun fahimci mahimmancin mahimmancin zaɓin da'ira mai dacewa don manyan injinan dizal. Nau'in janareta namu, gami da babban janareta na dizal janareta shiru, an tsara shi don biyan buƙatun abokan cinikinmu daban-daban a masana'antu daban-daban.

Babban janareta dizal janareta shiru na Jlmech yana ba da aiki na musamman da aminci, tare da mahimman fasali masu zuwa:

• Fitar AC: 20-3000KW
• Ƙarfin wutar lantarki na AC: 110V/220V/380V
• Yawancin lokaci: 50HZ / 60HZ
• Gudun Inji: 1500-3000 RPM
• Mataki: Single/Uku Mataki
• Nau'in: Silent/Buɗe Frame
• Nau'in Injin: Silinda Biyu/hudu
• Hanyar sanyaya: Ruwan sanyaya
• Hanyar farawa: Farawa Lantarki
• Keɓancewa: OEM/ODM akwai
• Takaddun shaida: CE/Euro 5/EPA/CARB

Babban janareta na dizal shiru an ƙera shi don dogaro a cikin matsananciyar yanayi, yana nuna ci-gaba da shingen shingen sauti da fasaha mai hana girgiza. Wannan ya sa su dace don duka saitunan birane da wuraren da ba su da kyau, yana tabbatar da aiki mara kyau a wurare daban-daban.

Tare da Jlmech, ba kawai kuna samun janareta ba; kuna saka hannun jari a cikin hanyar samar da wutar lantarki mai goyan bayan ƙwararrun duniya, ingantaccen inganci, da tallafin 24/7. Ƙungiyarmu na ma'aikatan fasaha na 126 a fadin cibiyoyin 3 R & D suna tabbatar da ƙaddamar da ƙira, yayin da tsarin masana'antar mu na ISO9001 da aka ba da izini tare da gwajin sarrafa kansa yana ba da garantin inganci. A matsayin abokin tarayya na OEM don manyan samfuran, muna kawo ƙwarewar jagorancin masana'antu ga kowane janareta da muke samarwa.

Kammalawa

Zaɓan madaidaicin madauri don naka babban janareta dizal yanke shawara ne mai mahimmanci wanda ke tasiri aminci, amintacce, da ingancin tsarin wutar lantarki. Ta hanyar la'akari da dalilai kamar girman janareta, ƙididdiga na gajeren lokaci, da takamaiman fa'idodin nau'ikan masu fashewa daban-daban, zaku iya yin zaɓin da ya dace wanda ke tabbatar da ingantaccen kariya ga kayan aikinku masu mahimmanci.

Ga masana'antun da ke buƙatar samar da wutar lantarki mara yankewa, kamar mai da iskar gas, hakar ma'adinai, kiwon lafiya, da cibiyoyin bayanai, haɗin gwiwa tare da masu samar da janareta abin dogaro yana da mahimmanci. Jlmech, tare da shekaru 29 na gwaninta da sadaukar da kai ga ƙirƙira fasaha, yana ba da ingantattun hanyoyin samar da wutar lantarki da ke dacewa da takamaiman bukatunku.

Shin kuna shirye don amintaccen ingantaccen maganin wutar lantarki don kasuwancin ku? Tuntuɓi Jlmech yau a skala@whjlmech.com don ƙarin koyo game da kewayon manyan injinan dizal ɗinmu da kuma yadda za mu iya tsara mafita don biyan buƙatunku na musamman na wutar lantarki. Tare da ƙwarewarmu ta duniya, haɗin gwiwar OEM, da cikakken garanti, muna nan don tabbatar da biyan bukatun wutar lantarki tare da daidaito da aminci.

References

1. Cibiyar Injiniyoyin Lantarki da Lantarki. (2021). IEEE Std 141-2021 - IEEE Shawarar Ayyuka don Rarraba Wutar Lantarki don Tsirrai Masana'antu.
2. Kungiyar Kare Gobara ta Kasa. (2023). NFPA 70: Lambar Lantarki ta Ƙasa.
3. Klempner, G., & Kerszenbaum, I. (2018). Littafin Jagora na Babban Turbo-Generator Aiki da Kulawa. John Wiley & Sons.
4. Parise, G., & Hesla, E. (2019). Diesel Generator Handbook. Elsevier.
5. Hukumar Fasaha ta Duniya. (2020). IEC 60947-2: 2020 Low-voltagear switchgear da sarrafawa - Kashi na 2: Masu keɓewa
6. Cibiyar Matsayin Ƙasa ta Amirka. (2022). Matsayin ANSI C37.13 IEEE don Ƙarƙashin Ƙarfin Wuta na AC Masu Karɓar Wutar Wuta da Aka Yi Amfani da su a cikin Rukunni.