Hiki i ka hoʻohana ʻana o ATSE-Automatic transfer switch ke hoʻonā i ka pilikia overlapping o nā laina kūʻokoʻa

Hoʻololi ʻakomi hoʻololi (ATSE)hiki ke hoʻonā i ka pilikia overlapping o nā laina kuʻuna.No laila he aha kā mākou e manaʻo ai me ka overlap line neutral?

Kiʻi 1: E noʻonoʻo i ka volta o kaDC manaHe 220V ka lako, a he 10 Ohms ke kumu kuai o na mea pale haawe ekolu.E helu kāua i ka volta ma luna o ka pale haawe Ra:

No ka resistor Ra, loaʻa iā mākou:

E hoʻomaopopo he ʻekolu au e kahe ana ma ke kū ʻana o Ra, a puka mai kekahi mai loko mailako ikehuEa a hoʻi i ka pou ʻino o ka lako mana ma o LINE N. ʻO nā mea ʻelua ʻē aʻe e puka mai Ea a hoʻi i ka pahu ʻino ma o Eb a i ʻole Ec.Akā, no ka like a me ke kū'ē ʻana o nā mana electromotive o nā kumu ʻelua i loko o kēia loop, ʻo ka ʻāʻī ka ʻole.
ʻO kekahi mea e pono ai ka nānā kūikawā ʻo ia ka volta ma ka helu N he 0V.
E nana hou kakou i ke kii 2: ua naha ka N ma ke kii i elua kiko, N a me N'.He aha ka voltage ma ka pale pale Ra?He maʻalahi ka haʻi ʻana he 0V ka volta ma waena o Ra.
ʻOiaʻiʻo, ʻo ka manaʻo ma ʻaneʻi: ʻo nā ʻāpana hoʻolako mana ʻekolu i ke kaʻapuni ua kūpaʻa loa, a ʻo nā ʻāpana kūʻē pū kekahi i kūlike loa, a ʻo nā ʻāpana o ka uea, ʻo ia hoʻi ke kūpaʻa laina.
Ma kahi laina maoli, ʻaʻole e like kēia mau ʻāpana, no laila e loaʻa i ka Ra ka haʻahaʻa haʻahaʻa haʻahaʻa.E kapa mākou iā ia ka N 'volt.

E nānā kākou i ke kiʻi ma lalo nei.

E like me kā mākou e ʻike ai, ʻo ka lako mana ma FIG.3 a me 4, FIG.1 a me FIG.Hoʻololi ʻia ʻo 2 mai DC a i ʻekolu-phase AC, a ʻo ka voltage phase he 220V, no laila he 380V maoli ka laina laina, a ʻo ka ʻokoʻa ma waena o nā pae ʻekolu he 120 degere.
He aha ka voltage ma luna o ka pale pale Ra ma ke Kiʻi 3?
No ka mea ʻo ke kumu o kēia pou e hōʻike wale i ka pilikia, ʻaʻole e hana i ka helu quantitative o ke kaapuni.ʻAʻole pono mākou e hana i ka helu pololei.
Akā hiki iā mākou ke ʻike maopopo, no ka FIG.3, ua like ka volta ma waena o ka resistor Ra me 217.8V a ʻo ka volta interphase he zero.
Ma FIG.4, ʻike mākou ua haki ka laina n i N a me N', no laila he aha ka hopena o ka volta ma ke kiko N'?
Ua like ka pane no DC.Ina like loa ke kaapuni, Un 'like 0V;Inā ʻaʻole kūlike nā ʻāpana kaapuni, ʻaʻole like ʻo Un ' i ka 0V.
Ma kahi kaapuni pono, ʻoi aku ma kahi kaapuni kukui, ʻekolu-phase AC he asymmetric, no laila ke kahe nei kēia manawa ma ka laina N a i ʻole laina PEN (laina zero).I ka wā e haki ai ka laina N a i ʻole ka laina PEN, piʻi ka volta ma hope o ka wahi haʻihaʻi.I nā hihia koʻikoʻi, piʻi ia i ka voltage phase, ʻo ia ka 220V.

E nānā kākouATSE:

E nānā ma lalo:

Ma kēia kiʻi ʻike mākou i ka laina komo ʻelua, kaATSE, a ʻo ka māmā hoʻouka.Eia naʻe, ʻokoʻa ka helu o nā kukui ma nā ʻanuʻu ʻekolu, me ka pae A ʻoi loa ka ukana.
E noʻonoʻo kākou i kēlāATSEke pani nei i ka loop T1 ma ka hema, a ke hele nei ka hana o keia manawa mai T1 a i T2.
Inā, i ka wā o ka hoʻololi ʻana, ua ʻoki mua ʻia ka laina 1N a ua ʻoki ʻia nā ʻāpana ʻekolu ma hope, a laila i ka wā o ka hoʻololi ʻana, hiki iā mākou ke ʻike koke mai ka ʻike ma luna aʻe e piʻi a hāʻule paha ka volt line neutral o ka ukana.Inā ʻoi aku ka nui o ka volta o ke kukui ma mua o ka voltage phase, e ʻā ke kukui i ka wā o ka hoʻololi ʻana.
ʻO ia kahi e komo ai ka overlap o nā laina kūʻokoʻa.

He aha ka hopena?

ATSEme ka hana ʻāwili laina kū ʻole, ke hoʻā ʻia, e hōʻoia mua i ka hoʻololi ʻana o ka volta ʻekolu-phase ma mua, a laila hoʻomaka ka laina N i ka hope;Ke hoʻā ʻia, e hoʻomaka mua e hoʻohuli i ka laina N, a laila e hoʻohuli i ka volta ʻekolu.ʻOiai, hiki i ka ATSE ke uhi koke i nā laina N o nā ala ʻelua.ʻO kēia ka hana overlap line neutral.