Relay na Aiki na Yawan Kirki

Bayanin Relēya na Maimakawa na Bayan Kwabtaka

Relēya na maimakawa na bayan kwabtaka ita ce kayan da ya kula da muhimmanci wajen sauni abubuwa daban-daban na maimakawa na bayan kwabtaka daga abubuwan da suka shafi shi kamar abubuwan da ke faruwa da kuma abubuwan da ke so.

Yana amfani da fassara (V) da kuma tashin magana (I) daga mutar da tsari (PT) da kuma mutar da tashin magana (CT) don tabbatar da zama (Z) na likitoci. Zama ana samun ta tare da fassara zuwa tashin magana: Z = V/I.

Relēya tana bincike zama da aka samu da zama da aka sanya don hanyar yadda ake yi aiki a lokacin da ba a kashe sabon kwabta. Idan zama da aka samu yana fi yiwuwar, yana nuna cewa an yi sabon kwabta, kuma relēya tana yin signalin kasa zuwa circuit breaker don in iya kasa. Relēya tana iya nuna paramaitaccen sabon kwabta kamar tashin magana, fassara, takaya, reaktansa, da kuma yawan fasahohin sabon kwabta a scirrin.

Yawan fasahohin sabon kwabta tana nufin yawan fasahohin daga relēya zuwa sabon kwabta, ana samun ta tare da zama da aka samu zuwa zama na likitoci kafin kilomita. Misali, idan zama da aka samu ita ce 10 ohms da kuma zama na likitoci kafin kilomita ita ce 0.4 ohms/km, yawan fasahohin sabon kwabta ita ce 10 x 0.4 = 4 km. Neman wannan yana taimaka wajen neman da kuma sarrafa sabon kwabta da gaskiya.

Relēya na Maimakawa na Yawan Fasahohin

Yana amfani da zama don tabbatar da sabon kwabta da kuma yin signalin kasa don in iya kasa faɗin da ake faruwa.

Alamomin Dukkuka

Relēyan maimakawa na yawan fasahohin suna iya da alamomin aiki daban-daban, sama da circular, mho, dukkuka, ko polygonal. Alamomin dukkuka tana da mahimmanci a relēyan na lambobi saboda ingantaccen da kyau a setten masanaftu.

Alamomin dukkuka tana nuna graph mai hoto na dukkuka wanda yake nuna zonin masanaftu na relēya. Graph tana da nisa: takaya na aiki (R F), takaya na rarrabe (R B), reaktansa na aiki (X F), da reaktansa na rarrabe (X B). Graph tana da kuma angle na alamomin relēya (RCA) wanda tana nuna hotojin dukkukan.

Alamomin dukkuka zai iya amfani da cikakken hanyoyin:

• Sanya R F a X-axis na musamman da R B a X-axis na haske.

• Sanya X F a Y-axis na musamman da X B a Y-axis na haske.

• Kwalla line daga R F zuwa X F ta hanyar slope na RCA.

• Kwalla line daga R B zuwa X B ta hanyar slope na RCA.

• Gina dukkukan tare da kallonta R F zuwa R B da kuma X F zuwa X B.

Zonin masanaftu tana cikin dukkukan, wanda yana nuna cewa idan zama da aka samu tana cikin wannan yankin, relēya zai yi kasa. Alamomin dukkuka zai iya tabbatar da arzon daban-daban:

• Arzon na farko (R da X suna da musamman): Wannan arzon tana nuna load indikatif da kuma sabon kwabta na aiki daga relēya.

• Arzon na biyu (R na haske da X na musamman): Wannan arzon tana nuna load kapasitif da kuma sabon kwabta na rarrabe daga relēya.

• Arzon na uku (R da X suna da haske): Wannan arzon tana nuna load indikatif da kuma sabon kwabta na rarrabe daga relēya.

• Arzon na hudu (R na musamman da X na haske): Wannan arzon tana nuna load kapasitif da kuma sabon kwabta na aiki daga relēya.

Zonon Aiki

Relēyan maimakawa na yawan fasahohin suna da zonon daban-daban, da aka sanya azaman da tunanin waɗanda suke yi aiki. Waɗannan zonon suna taimaka wajen bayyana masanaftu na relēyan daban-daban.

Zonon aiki na yawan fasahohin na relēya sun haɗa:

• Zone 1: Wannan zonon tana nuna 80% zuwa 90% na yawan fasahohin na likitoci da ba tana da tunani. Tana bayyana masanaftu na farko don sabon kwabta a cikin wannan zonon da kuma yin kasa da gaskiya.

• Zone 2: Wannan zonon tana nuna 100% zuwa 120% na yawan fasahohin na likitoci da tana da tunani mai yawa (marubucin 0.3 zuwa 0.5 seconds). Tana bayyana masanaftu na biyu don sabon kwabta wajen Zone 1 ko likitocin da suka biyo.

• Zone 3: Wannan zonon tana nuna 120% zuwa 150% na yawan fasahohin na likitoci da tana da tunani mai yawa (marubucin 1 zuwa 2 seconds). Tana bayyana masanaftu na uku don sabon kwabta wajen Zone 2 ko likitocin da suka biyo.

• Wasu relēyan za su iya da zonon da suka biyo, kamar Zone 4 don load encroachment ko Zone 5 don overreaching faults.

Muhimman Tsarin Zaba

• Zabi relēyan na lambobi saboda ingantaccen aiki, funktshi, da kyau, da kuma diagnostic.

• Zabi relēyan maimakawa na yawan fasahohin saboda likitocin da suka biyo ko likitocin da suka da matsaloli.

• Zabi alamomin dukkuka saboda ingantaccen da kyau da kuma adaltarwa.

• Zabi inputs na sensor na low-energy analog saboda kudaden da kuma harsunan dalilai.

• Zabi relēyan na arc-flash detection saboda kasan kasa da kuma dalilan karamin mutane.

Kalmomin

Relēyan maimakawa na bayan kwabtaka suna da muhimmanci sosai wajen sauni abubuwan daban-daban na maimakawa na bayan kwabtaka daga sabon kwabta. Suna iya taimaka wajen kawo karfi, kasa, da kuma kudanci na jirgin ruwa, tare da kusan tabbatar da sabon kwabta, in kasa sabon kwabta, da kuma in kudanta kisan cutar ruwa.

Wata nan na relēyan maimakawa na bayan kwabtaka ita ce relēyan maimakawa na yawan fasahohin, wanda yana amfani da fassara da kuma tashin magana daga PT da CT don tabbatar da zama na likitoci. Yana bincike zama da aka samu da zama da aka sanya, wanda tana nuna zama na mafi yiwuwa don hanyar yadda ake yi aiki a lokacin da ba a kashe sabon kwabta. Idan zama da aka samu yana fi yiwuwar, yana nuna cewa an yi sabon kwabta, kuma relēya tana yin signalin kasa zuwa circuit breaker don in iya kasa sabon kwabta.

Relēyan maimakawa na yawan fasahohin suna iya da alamomin aiki daban-daban, kamar circular, mho, dukkuka, ko polygonal. Alamomin dukkuka tana da muhimmanci a relēyan na lambobi saboda ingantaccen da kyau a setten zonon masanaftu.

Alamomin dukkuka tana nuna graph mai hoto na dukkuka wanda yake nuna zonin masanaftu na relēya. Graph tana da nisa: takaya na aiki (R F), takaya na rarrabe (R B), reaktansa na aiki (X F), da reaktansa na rarrabe (X B). Graph tana da kuma angle na alamomin relēya (RCA) wanda tana nuna hotojin dukkukan.