{"id":21245,"date":"2026-01-07T02:20:44","date_gmt":"2026-01-06T18:20:44","guid":{"rendered":"https:\/\/viox.com\/?p=21245"},"modified":"2026-01-07T02:20:46","modified_gmt":"2026-01-06T18:20:46","slug":"single-phase-vs-three-phase-ats-selection-guide-2p-3p-4p","status":"publish","type":"post","link":"https:\/\/test.viox.com\/cs\/single-phase-vs-three-phase-ats-selection-guide-2p-3p-4p\/","title":{"rendered":"Pr\u016fvodce v\u00fdb\u011brem ATS pro jednof\u00e1zov\u00e9 vs. t\u0159\u00edf\u00e1zov\u00e9 syst\u00e9my: Kdy zvolit 2P, 3P nebo 4P?"},"content":{"rendered":"<div class=\"product-intro\">\n<h2>Pochopen\u00ed jednof\u00e1zov\u00fdch a t\u0159\u00edf\u00e1zov\u00fdch nap\u00e1jec\u00edch syst\u00e9m\u016f<\/h2>\n<h3>Jednof\u00e1zov\u00e9 syst\u00e9my (1P+N): Aplikace 220-240V<\/h3>\n<p>Jednof\u00e1zov\u00e9 nap\u00e1jec\u00ed syst\u00e9my pracuj\u00ed s nap\u011bt\u00edm 220-240V a skl\u00e1daj\u00ed se z jednoho f\u00e1zov\u00e9ho vodi\u010de (L1) a jednoho nulov\u00e9ho vodi\u010de (N). Tyto syst\u00e9my obvykle vy\u017eaduj\u00ed <strong>2-p\u00f3lov\u00fd (2P) automatick\u00fd p\u0159ep\u00edna\u010d<\/strong> , kter\u00fd sou\u010dasn\u011b p\u0159ep\u00edn\u00e1 f\u00e1zov\u00fd i nulov\u00fd vodi\u010d.<\/p>\n<p><strong>Prim\u00e1rn\u00ed aplikace:<\/strong><\/p>\n<ul>\n<li>Obytn\u00e9 budovy a byty<\/li>\n<li>Mal\u00e9 komer\u010dn\u00ed kancel\u00e1\u0159e (p\u0159\u00edkon pod 100A)<\/li>\n<li>Rekrea\u010dn\u00ed vozidla (RV) a mobiln\u00ed domy<\/li>\n<li>Lehk\u00e9 vybaven\u00ed a spot\u0159ebi\u010de<\/li>\n<li>Z\u00e1lo\u017en\u00ed nap\u00e1jen\u00ed pro z\u00e1kladn\u00ed dom\u00e1c\u00ed spot\u0159ebi\u010de<\/li>\n<\/ul>\n<p>Jednof\u00e1zov\u00e9 syst\u00e9my maj\u00ed omezenou kapacitu dod\u00e1vky energie, obvykle maxim\u00e1ln\u011b 100A (24kW p\u0159i 240V). Pro aplikace z\u00e1lo\u017en\u00edho nap\u00e1jen\u00ed v dom\u00e1cnostech poskytuje 2P ATS adekv\u00e1tn\u00ed ochranu p\u0159i p\u0159ep\u00edn\u00e1n\u00ed mezi zdroji s\u00edt\u011b a gener\u00e1toru.<\/p>\n<h3>T\u0159\u00edf\u00e1zov\u00e9 syst\u00e9my (3P+N): Pr\u016fmyslov\u00e9 nap\u00e1jen\u00ed 380-415V<\/h3>\n<p>T\u0159\u00edf\u00e1zov\u00e9 nap\u00e1jec\u00ed syst\u00e9my dod\u00e1vaj\u00ed 380-415V prost\u0159ednictv\u00edm t\u0159\u00ed f\u00e1zov\u00fdch vodi\u010d\u016f (L1, L2, L3) plus nulov\u00e9ho vodi\u010de (N). Tyto syst\u00e9my vy\u017eaduj\u00ed bu\u010f <strong>3-p\u00f3lov\u00fd (3P) nebo 4-p\u00f3lov\u00fd (4P) automatick\u00fd p\u0159ep\u00edna\u010d<\/strong>, v z\u00e1vislosti na tom, zda je t\u0159eba p\u0159ep\u00ednat nulov\u00fd vodi\u010d \u2013 co\u017e je kritick\u00e9 rozhodnut\u00ed, kter\u00e9 ovliv\u0148uje bezpe\u010dnost a spolehlivost syst\u00e9mu.<\/p>\n<p><strong>Prim\u00e1rn\u00ed aplikace:<\/strong><\/p>\n<ul>\n<li>V\u00fdrobn\u00ed z\u00e1vody a pr\u016fmyslov\u00e9 provozy<\/li>\n<li>Komer\u010dn\u00ed budovy se syst\u00e9my HVAC<\/li>\n<li>Datov\u00e1 centra a telekomunika\u010dn\u00ed za\u0159\u00edzen\u00ed<\/li>\n<li>Provozovny provozuj\u00edc\u00ed t\u0159\u00edf\u00e1zov\u00e9 motory (\u010derpadla, kompresory, chladi\u010de)<\/li>\n<li>Velk\u00e9 sol\u00e1rn\u00ed fotovoltaick\u00e9 instalace s <a href=\"https:\/\/test.viox.com\/cs\/hybrid-inverter-ats-wiring-guide-2-wire-start-neutral-bonding\/\">hybridn\u00edmi invertorov\u00fdmi syst\u00e9my<\/a><\/li>\n<\/ul>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%; text-align: left;\">\n<thead>\n<tr>\n<th>Typ syst\u00e9mu<\/th>\n<th>Nap\u011bt\u00ed<\/th>\n<th>Vodi\u010de<\/th>\n<th>Typick\u00e9 ATS<\/th>\n<th>Maxim\u00e1ln\u00ed zat\u00ed\u017eitelnost<\/th>\n<th>B\u011b\u017en\u00e9 aplikace<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Jednof\u00e1zov\u00e9<\/td>\n<td>220\u2013240 V<\/td>\n<td>L1 + N<\/td>\n<td>2P<\/td>\n<td>A\u017e 24kW<\/td>\n<td>Reziden\u010dn\u00ed, mal\u00e9 komer\u010dn\u00ed<\/td>\n<\/tr>\n<tr>\n<td>T\u0159\u00edf\u00e1zov\u00e9<\/td>\n<td>380-415V<\/td>\n<td>L1 + L2 + L3 + N<\/td>\n<td>3P nebo 4P<\/td>\n<td>A\u017e 400kW+<\/td>\n<td>Pr\u016fmyslov\u00e9, velk\u00e9 komer\u010dn\u00ed provozy<\/td>\n<\/tr>\n<tr>\n<td>D\u011blen\u00e1 f\u00e1ze<\/td>\n<td>120\/240V<\/td>\n<td>L1 + L2 + N<\/td>\n<td>3P (speci\u00e1ln\u00ed)<\/td>\n<td>A\u017e 48kW<\/td>\n<td>Severoamerick\u00e9 reziden\u010dn\u00ed<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Single-phase-2P-vs-three-phase-4P-automatic-transfer-switches-comparison-in-industrial-setting.webp\" alt=\"Single-phase 2P vs three-phase 4P automatic transfer switches comparison in industrial setting\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">Obr\u00e1zek 1: Srovn\u00e1n\u00ed rozvodn\u00e9 desky 2-p\u00f3lov\u00e9ho ATS pro reziden\u010dn\u00ed pou\u017eit\u00ed a panelu rozvad\u011b\u010de 4-p\u00f3lov\u00e9ho ATS pro pr\u016fmyslov\u00e9 pou\u017eit\u00ed.<\/figcaption><\/figure>\n<h2>Dilema \u201c4. p\u00f3lu\u201d: Volba mezi 3P a 4P ATS<\/h2>\n<p>Zde doch\u00e1z\u00ed k v\u011bt\u0161in\u011b chyb ve specifikac\u00edch. Rozhodnut\u00ed mezi 3-p\u00f3lov\u00fdm a 4-p\u00f3lov\u00fdm ATS z\u00e1sadn\u011b m\u011bn\u00ed zp\u016fsob, jak\u00fdm v\u00e1\u0161 syst\u00e9m nakl\u00e1d\u00e1 s uzemn\u011bn\u00edm nulov\u00e9ho vodi\u010de a ochranou proti poruch\u00e1m.<\/p>\n<h3>3-p\u00f3lov\u00fd ATS: Sp\u00ednan\u00e9 f\u00e1ze, pevn\u00fd nulov\u00fd vodi\u010d<\/h3>\n<p>3P ATS sp\u00edn\u00e1 pouze t\u0159i f\u00e1zov\u00e9 vodi\u010de (L1, L2, L3), p\u0159i\u010dem\u017e ponech\u00e1v\u00e1 nulov\u00fd vodi\u010d jako <strong>pevn\u00e9 pr\u016fchoz\u00ed spojen\u00ed<\/strong> mezi ob\u011bma zdroji nap\u00e1jen\u00ed.<\/p>\n<p><strong>Konfigurace:<\/strong><\/p>\n<ul>\n<li>Sp\u00edna\u010de: L1, L2, L3<\/li>\n<li>Pr\u016fchoz\u00ed: Nulov\u00fd vodi\u010d (N)<\/li>\n<li>Uzemn\u011bn\u00ed: Jeden bod uzemn\u011bn\u00ed u vstupu do objektu<\/li>\n<li>Gener\u00e1tor: Nulov\u00fd vodi\u010d NEN\u00cd spojen se zem\u00ed (plovouc\u00ed nulov\u00fd bod)<\/li>\n<\/ul>\n<p><strong>Z\u00e1sadn\u00ed omezen\u00ed:<\/strong><br \/>\n    P\u0159i pou\u017eit\u00ed 3P ATS, nulov\u00fd vodi\u010d gener\u00e1toru <strong>nesm\u00ed b\u00fdt spojen se zem\u00ed<\/strong> u gener\u00e1toru. Ve\u0161ker\u00e9 spojen\u00ed nulov\u00e9ho vodi\u010de se zem\u00ed se prov\u00e1d\u00ed pouze u vstupu do s\u00edt\u011b. T\u00edm se vytvo\u0159\u00ed syst\u00e9m, kter\u00fd nen\u00ed samostatn\u011b odvozen\u00fd, kde gener\u00e1tor sd\u00edl\u00ed referen\u010dn\u00ed uzemn\u011bn\u00ed s\u00edt\u011b.<\/p>\n<p><strong>Rizika 3P ATS s pevn\u00fdm nulov\u00fdm vodi\u010dem:<\/strong><\/p>\n<ol>\n<li><strong>Vznik zemn\u00ed smy\u010dky<\/strong>: Kdy\u017e se nulov\u00e9 vodi\u010de s\u00edt\u011b i gener\u00e1toru p\u0159ipojuj\u00ed p\u0159es pevnou nulovou sb\u011brnici, jak\u00fdkoli rozd\u00edl potenci\u00e1l\u016f mezi ob\u011bma uzem\u0148ovac\u00edmi syst\u00e9my vytv\u00e1\u0159\u00ed cirkuluj\u00edc\u00ed proudy. To je zvl\u00e1\u0161t\u011b problematick\u00e9 v <a href=\"https:\/\/test.viox.com\/cs\/hybrid-inverter-ats-wiring-guide-2-wire-start-neutral-bonding\/\">hybridn\u00edch sol\u00e1rn\u011b-bateriov\u00fdch syst\u00e9mech<\/a> , kde m\u011bni\u010d m\u016f\u017ee zav\u00e1d\u011bt DC offsetov\u00e9 proudy.<\/li>\n<li><strong>Nekompatibilita s RCD\/GFCI<\/strong>: <a href=\"https:\/\/test.viox.com\/cs\/what-is-the-difference-between-mcb-mccb-rcb-rcd-rccb-and-rcbo\/\">Proudov\u00e9 chr\u00e1ni\u010de (RCCB)<\/a> m\u011b\u0159\u00ed nerovnov\u00e1hu proudu mezi f\u00e1zov\u00fdmi a nulov\u00fdmi vodi\u010di. S pevn\u00fdm nulov\u00fdm vodi\u010dem se mohou poruchov\u00e9 proudy vracet alternativn\u00edmi cestami, co\u017e zp\u016fsobuje ru\u0161iv\u00e9 vybavov\u00e1n\u00ed nebo \u2013 co je hor\u0161\u00ed \u2013 selh\u00e1n\u00ed vybaven\u00ed p\u0159i skute\u010dn\u00fdch zemn\u00edch poruch\u00e1ch.<\/li>\n<li><strong>Rozd\u00edly potenci\u00e1l\u016f nulov\u00e9ho vodi\u010de<\/strong>: Pokud maj\u00ed gener\u00e1tor a s\u00ed\u0165 r\u016fzn\u00e9 impedance uzemn\u011bn\u00ed (b\u011b\u017en\u00e9 u mobiln\u00edch gener\u00e1tor\u016f nebo do\u010dasn\u00fdch instalac\u00ed), m\u016f\u017ee nulov\u00fd vodi\u010d plavat na nebezpe\u010dn\u00e1 nap\u011bt\u00ed, kdy\u017e je odpojen\u00fd zdroj st\u00e1le p\u0159ipojen p\u0159es nulovou sb\u011brnici.<\/li>\n<li><strong>Konflikty zemn\u00edch rel\u00e9<\/strong>: Syst\u00e9my s <a href=\"https:\/\/test.viox.com\/cs\/understanding-ground-fault-protection\/\">ochranou proti zemn\u00edmu spojen\u00ed<\/a> na obou zdroj\u00edch uvid\u00ed fale\u0161n\u00e9 zemn\u00ed proudy prot\u00e9kaj\u00edc\u00ed nulovou cestou odpojen\u00e9ho zdroje, co\u017e m\u016f\u017ee zbyte\u010dn\u011b vybavovat ochrann\u00e9 prvky.<\/li>\n<\/ol>\n<h3>4-p\u00f3lov\u00fd ATS: Kompletn\u00ed izolace zdroje<\/h3>\n<p>4P ATS sp\u00edn\u00e1 <strong>v\u0161echny \u010dty\u0159i vodi\u010de<\/strong>: L1, L2, L3 a nulov\u00fd vodi\u010d. T\u00edm se vytv\u00e1\u0159ej\u00ed elektricky izolovan\u00e9, samostatn\u011b odvozen\u00e9 syst\u00e9my.<\/p>\n<p><strong>Konfigurace:<\/strong><\/p>\n<ul>\n<li>P\u0159ep\u00edna\u010de: L1, L2, L3, N<\/li>\n<li>Pr\u016fchoz\u00ed: \u017d\u00e1dn\u00e9 (\u00fapln\u00e1 izolace)<\/li>\n<li>Uzemn\u011bn\u00ed: Samostatn\u00e9 propojen\u00ed v ka\u017ed\u00e9m zdroji<\/li>\n<li>Gener\u00e1tor: Nulov\u00fd vodi\u010d spojen\u00fd se zem\u00ed u gener\u00e1toru<\/li>\n<\/ul>\n<p><strong>V\u00fdhody 4-p\u00f3lov\u00e9 konfigurace:<\/strong><\/p>\n<ol>\n<li><strong>Soulad se samostatn\u011b odvozen\u00fdm syst\u00e9mem<\/strong>: Ka\u017ed\u00fd zdroj energie (s\u00ed\u0165, gener\u00e1tor, sol\u00e1rn\u00ed invertor) se st\u00e1v\u00e1 nez\u00e1visl\u00fdm samostatn\u011b odvozen\u00fdm syst\u00e9mem s vlastn\u00edm spojen\u00edm nulov\u00e9ho vodi\u010de se zem\u00ed. To spl\u0148uje po\u017eadavky NEC \u010dl\u00e1nku 250.30 a eliminuje paraleln\u00ed zemn\u00edc\u00ed cesty.<\/li>\n<li><strong>Prevence zemn\u00edc\u00ed smy\u010dky<\/strong>: \u00dapln\u00fdm odpojen\u00edm neaktivn\u00edho zdroje nemohou mezi r\u016fzn\u00fdmi zemn\u00edc\u00edmi syst\u00e9my prot\u00e9kat \u017e\u00e1dn\u00e9 cirkuluj\u00edc\u00ed proudy. To je kritick\u00e9 v <a href=\"https:\/\/test.viox.com\/cs\/hybrid-inverter-ats-wiring-guide-2-wire-start-neutral-bonding\/\">sol\u00e1rn\u00edch hybridn\u00edch syst\u00e9mech<\/a> kde zdroje zalo\u017een\u00e9 na invertorech mohou zav\u00e1d\u011bt harmonick\u00e9 nebo stejnosm\u011brn\u00e9 slo\u017eky.<\/li>\n<li><strong>Kompatibilita s RCD ochranou<\/strong>: Za\u0159\u00edzen\u00ed pro ochranu proti zemn\u00edmu spojen\u00ed funguj\u00ed spr\u00e1vn\u011b, proto\u017ee ochrana ka\u017ed\u00e9ho zdroje vid\u00ed pouze sv\u00e9 vlastn\u00ed poruchov\u00e9 proudy, bez interference od zemn\u00edc\u00ed cesty alternativn\u00edho zdroje.<\/li>\n<li><strong>Stabilita nap\u011b\u0165ov\u00e9 reference<\/strong>: Ka\u017ed\u00fd zdroj si vytv\u00e1\u0159\u00ed vlastn\u00ed stabiln\u00ed nulovou referenci, \u010d\u00edm\u017e se eliminuj\u00ed kol\u00eds\u00e1n\u00ed nap\u011bt\u00ed zp\u016fsoben\u00e1 rozd\u00edly potenci\u00e1l\u016f nulov\u00e9ho vodi\u010de mezi zdroji.<\/li>\n<\/ol>\n<h3>Doporu\u010den\u00ed VIOX Engineering<\/h3>\n<p><strong>Pro hybridn\u00ed sol\u00e1rn\u011b-bateriov\u00e9 syst\u00e9my, z\u00e1lo\u017en\u00ed instalace gener\u00e1tor\u016f a jak\u00e9koli aplikace vyu\u017e\u00edvaj\u00edc\u00ed v\u00edce zdroj\u016f energie, VIOX d\u016frazn\u011b doporu\u010duje 4-p\u00f3lov\u00e9 automatick\u00e9 p\u0159ep\u00edna\u010de.<\/strong><\/p>\n<p>Margin\u00e1ln\u00ed n\u00e1r\u016fst n\u00e1klad\u016f (typicky 15-25 % oproti 3P jednotk\u00e1m) je nev\u00fdznamn\u00fd ve srovn\u00e1n\u00ed s eliminac\u00ed probl\u00e9m\u016f se zemn\u00edc\u00ed smy\u010dkou, obt\u011b\u017euj\u00edc\u00edm vyp\u00edn\u00e1n\u00edm RCD a potenci\u00e1ln\u00edm po\u0161kozen\u00edm za\u0159\u00edzen\u00ed v d\u016fsledku nevyv\u00e1\u017eenosti nap\u011bt\u00ed nulov\u00e9ho vodi\u010de. V na\u0161em ter\u00e9nn\u00edm testov\u00e1n\u00ed s v\u00edce ne\u017e 2 000 <a href=\"https:\/\/test.viox.com\/cs\/what-is-a-pv-combiner-box-and-why-your-solar-system-cant-function-without-one\/\">sol\u00e1rn\u00ed slu\u010dovac\u00ed box<\/a> instalacemi vykazovaly syst\u00e9my pou\u017e\u00edvaj\u00edc\u00ed 4P ATS konfigurace o 92 % m\u00e9n\u011b servisn\u00edch z\u00e1sah\u016f souvisej\u00edc\u00edch s uzemn\u011bn\u00edm ve srovn\u00e1n\u00ed s 3P konfiguracemi.<\/p>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%; text-align: left;\">\n<thead>\n<tr>\n<th>Funkce<\/th>\n<th>3-p\u00f3lov\u00fd ATS<\/th>\n<th>4-p\u00f3lov\u00fd ATS<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Sp\u00ednan\u00e9 f\u00e1ze<\/strong><\/td>\n<td>L1, L2, L3<\/td>\n<td>L1, L2, L3, N<\/td>\n<\/tr>\n<tr>\n<td><strong>Neutr\u00e1ln\u00ed ovladatelnost<\/strong><\/td>\n<td>Pevn\u00fd pr\u016fchod<\/td>\n<td>Sp\u00ednan\u00fd (izolovan\u00fd)<\/td>\n<\/tr>\n<tr>\n<td><strong>Spojen\u00ed N-G gener\u00e1toru<\/strong><\/td>\n<td>Mus\u00ed b\u00fdt odstran\u011bno<\/td>\n<td>Po\u017eadov\u00e1no u gener\u00e1toru<\/td>\n<\/tr>\n<tr>\n<td><strong>Typ syst\u00e9mu<\/strong><\/td>\n<td>Ne samostatn\u011b odvozen\u00fd<\/td>\n<td>Samostatn\u011b odvozen\u00fd<\/td>\n<\/tr>\n<tr>\n<td><strong>Zemn\u00edc\u00ed smy\u010dky<\/strong><\/td>\n<td>Vysok\u00e9 riziko<\/td>\n<td>Eliminov\u00e1no<\/td>\n<\/tr>\n<tr>\n<td><strong>Kompatibilita RCD<\/strong><\/td>\n<td>Omezen\u00e9<\/td>\n<td>Pln\u00e1 kompatibilita<\/td>\n<\/tr>\n<tr>\n<td><strong>Hybridn\u00ed sol\u00e1rn\u00ed<\/strong><\/td>\n<td>Nedoporu\u010deno<\/td>\n<td><strong>Doporu\u010deno<\/strong><\/td>\n<\/tr>\n<tr>\n<td><strong>Cenov\u00e1 pr\u00e9mie<\/strong><\/td>\n<td>Z\u00e1kladn\u00ed cena<\/td>\n<td>+15-25%<\/td>\n<\/tr>\n<tr>\n<td><strong>Soulad s p\u0159edpisy NEC<\/strong><\/td>\n<td>Vy\u017eaduje pe\u010dliv\u00fd n\u00e1vrh<\/td>\n<td>Automatick\u00fd soulad<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/VIOX-4-pole-ATS-internal-contactor-mechanism-showing-all-four-switching-poles-with-arc-suppression-chambers.webp\" alt=\"VIOX 4-pole ATS internal contactor mechanism showing all four switching poles with arc suppression chambers\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">Obr\u00e1zek 2: Vnit\u0159n\u00ed mechanismus 4-p\u00f3lov\u00e9ho ATS VIOX zobrazuj\u00edc\u00ed sou\u010dasn\u00e9 sp\u00edn\u00e1n\u00ed p\u00f3l\u016f L1, L2, L3 a nulov\u00e9ho vodi\u010de.<\/figcaption><\/figure>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Technical-wiring-diagram-comparing-3-pole-ATS-with-solid-neutral-vs-4-pole-ATS-with-switched-neutral-showing-ground-loop-prevention.webp\" alt=\"Technical wiring diagram comparing 3-pole ATS with solid neutral vs 4-pole ATS with switched neutral showing ground loop prevention\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">Obr\u00e1zek 3: Schematick\u00e9 srovn\u00e1n\u00ed: 3-p\u00f3lov\u00fd ATS (vlevo) vytv\u00e1\u0159\u00ed rizika zemn\u00edc\u00ed smy\u010dky, zat\u00edmco 4-p\u00f3lov\u00fd ATS (vpravo) zaji\u0161\u0165uje \u00faplnou izolaci a spr\u00e1vn\u00e9 uzemn\u011bn\u00ed.<\/figcaption><\/figure>\n<h2>Syst\u00e9my s d\u011blenou f\u00e1z\u00ed: Severoamerick\u00e1 past na v\u00fdb\u011br<\/h2>\n<p>D\u011blen\u00e1 f\u00e1ze, b\u011b\u017en\u00e1 ve Spojen\u00fdch st\u00e1tech, na Filip\u00edn\u00e1ch a na Tchaj-wanu, p\u0159edstavuje jedine\u010dnou v\u00fdzvu, kter\u00e1 zasko\u010d\u00ed mnoho in\u017een\u00fdr\u016f specifikuj\u00edc\u00edch p\u0159ep\u00edna\u010de.<\/p>\n<h3>Co je d\u011blen\u00e1 f\u00e1ze?<\/h3>\n<p>D\u011blen\u00e1 f\u00e1ze dod\u00e1v\u00e1 <strong>120V\/240V<\/strong> prost\u0159ednictv\u00edm sekund\u00e1rn\u00edho vinut\u00ed transform\u00e1toru se st\u0159edov\u00fdm odbo\u010dkou:<\/p>\n<ul>\n<li>L1 k nulov\u00e9mu vodi\u010di: 120V<\/li>\n<li>L2 k nulov\u00e9mu vodi\u010di: 120V<\/li>\n<li>L1 k L2: 240V<\/li>\n<\/ul>\n<p>Navzdory tomu, \u017ee se naz\u00fdvaj\u00ed \u201cjednof\u00e1zov\u00e9\u201d, maj\u00ed syst\u00e9my s d\u011blenou f\u00e1z\u00ed <strong>dva hork\u00e9 vodi\u010de<\/strong> (L1, L2), kter\u00e9 jsou o 180\u00b0 mimo f\u00e1zi, plus nulov\u00fd vodi\u010d.<\/p>\n<h3>Past na v\u00fdb\u011br ATS<\/h3>\n<p><strong>B\u011b\u017en\u00e1 chyba<\/strong>: Specifikace standardn\u00edho 2-p\u00f3lov\u00e9ho ATS pro syst\u00e9my s d\u011blenou f\u00e1z\u00ed.<\/p>\n<p><strong>Probl\u00e9m<\/strong>: Standardn\u00ed 2P ATS ur\u010den\u00fd pro skute\u010dn\u00e9 jednof\u00e1zov\u00e9 syst\u00e9my (jeden hork\u00fd + nulov\u00fd vodi\u010d) nem\u016f\u017ee spr\u00e1vn\u011b obsluhovat syst\u00e9my s d\u011blenou f\u00e1z\u00ed se dv\u011bma hork\u00fdmi vodi\u010di. Mus\u00edte p\u0159ep\u00ednat <strong>jak L1, tak L2<\/strong>, ne jen jeden.<\/p>\n<p><strong>Spr\u00e1vn\u00e1 \u0159e\u0161en\u00ed:<\/strong><\/p>\n<ol>\n<li><strong>Konfigurace t\u0159\u00edp\u00f3lov\u00e9ho ATS<\/strong>: Pou\u017eijte 3P ATS pro sp\u00edn\u00e1n\u00ed L1, L2 a nulov\u00e9ho vodi\u010de. To zach\u00e1z\u00ed se syst\u00e9mem s d\u011blenou f\u00e1z\u00ed jako s t\u0159\u00edf\u00e1zov\u00fdm syst\u00e9mem s pou\u017eit\u00edm pouze dvou f\u00e1z\u00ed.<\/li>\n<li><strong>Speci\u00e1ln\u00ed dvouf\u00e1zov\u00e9 (2P) ATS<\/strong>: N\u011bkte\u0159\u00ed v\u00fdrobci nab\u00edzej\u00ed specializovan\u00e9 2P p\u0159ep\u00edna\u010de, kter\u00e9 p\u0159ep\u00ednaj\u00ed sou\u010dasn\u011b L1 i L2, p\u0159i\u010dem\u017e neutr\u00e1l z\u016fst\u00e1v\u00e1 pr\u016fchoz\u00ed. Nicm\u00e9n\u011b, i tyto trp\u00ed probl\u00e9my se zemn\u00ed smy\u010dkou, kter\u00e9 byly pops\u00e1ny v\u00fd\u0161e.<\/li>\n<\/ol>\n<h3>Po\u017eadavky na aplikaci d\u011blen\u00e9 f\u00e1ze<\/h3>\n<p>Pro severoamerick\u00e9 reziden\u010dn\u00ed z\u00e1lo\u017en\u00ed nap\u00e1jec\u00ed syst\u00e9my (typick\u00fd p\u0159\u00edkon 200 A):<\/p>\n<p><strong>Doporu\u010deno<\/strong>: <strong>3p\u00f3lov\u00e9 ATS s p\u0159ep\u00edn\u00e1n\u00edm neutr\u00e1lu<\/strong> nebo <strong>4p\u00f3lov\u00e9 ATS<\/strong> (pokud se s t\u00edm zach\u00e1z\u00ed jako s L1+L2+N+rezerva)<\/p>\n<p>Tato konfigurace:<\/p>\n<ul>\n<li>P\u0159ep\u00edn\u00e1 ob\u011b hork\u00e9 f\u00e1ze (L1, L2) nez\u00e1visle<\/li>\n<li>M\u016f\u017ee voliteln\u011b p\u0159ep\u00ednat neutr\u00e1l (doporu\u010deno pro gener\u00e1torov\u00e9 syst\u00e9my)<\/li>\n<li>Umo\u017e\u0148uje spr\u00e1vn\u00fd provoz jak 120V (L1 nebo L2 k N), tak 240V (L1 k L2) z\u00e1t\u011b\u017e\u00ed<\/li>\n<li>Zabra\u0148uje zp\u011btn\u00e9mu toku mezi neutr\u00e1ly s\u00edt\u011b a gener\u00e1toru<\/li>\n<\/ul>\n<p><strong>Kritick\u00e1 pozn\u00e1mka k zapojen\u00ed<\/strong>: P\u0159i p\u0159ipojov\u00e1n\u00ed d\u011blen\u00e9 f\u00e1ze k 3P nebo 4P ATS:<\/p>\n<ul>\n<li>L1 \u2192 Svorka ATS 1<\/li>\n<li>L2 \u2192 Svorka ATS 2<\/li>\n<li>Svorka 3 \u2192 Nechte pr\u00e1zdnou nebo pou\u017eijte pro p\u0159ep\u00edn\u00e1n\u00ed neutr\u00e1lu<\/li>\n<li>N \u2192 Vyhrazen\u00e1 svorka neutr\u00e1lu (pokud 4P) nebo pevn\u00e1 sb\u011brnice (pokud 3P)<\/li>\n<\/ul>\n<p>To je zvl\u00e1\u0161t\u011b d\u016fle\u017eit\u00e9 pro <a href=\"https:\/\/test.viox.com\/cs\/ev-charger-circuit-breaker-sizing-guide-7kw-22kw\/\">Instalace nab\u00edje\u010dek EV<\/a> kter\u00e9 \u010dasto vy\u017eaduj\u00ed 240V d\u011blen\u00e9 f\u00e1zov\u00e9 nap\u00e1jen\u00ed pro nab\u00edjen\u00ed \u00farovn\u011b 2.<\/p>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/North-American-split-phase-120V240V-system-wiring-diagram-showing-correct-and-incorrect-ATS-configurations.webp\" alt=\"North American split-phase 120V\/240V system wiring diagram showing correct and incorrect ATS configurations\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">Obr\u00e1zek 4: Sch\u00e9ma zapojen\u00ed pro syst\u00e9my s d\u011blenou f\u00e1z\u00ed, kter\u00e9 ukazuje, pro\u010d jsou 2p\u00f3lov\u00e9 jednotky ATS nedostate\u010dn\u00e9 a jak by m\u011bly b\u00fdt konfigurov\u00e1ny 3p\u00f3lov\u00e9 nebo 4p\u00f3lov\u00e9 jednotky.<\/figcaption><\/figure>\n<h2>Vyv\u00e1\u017een\u00ed z\u00e1t\u011b\u017ee a stabilita f\u00e1zov\u00e9ho nap\u011bt\u00ed<\/h2>\n<p>Nevyv\u00e1\u017een\u00e9 zat\u00ed\u017een\u00ed v t\u0159\u00edf\u00e1zov\u00fdch syst\u00e9mech vytv\u00e1\u0159\u00ed provozn\u00ed probl\u00e9my, kter\u00e9 p\u0159\u00edmo ovliv\u0148uj\u00ed v\u00fdkon a spolehlivost ATS.<\/p>\n<h3>Fyzika t\u0159\u00edf\u00e1zov\u00e9 nevyv\u00e1\u017eenosti<\/h3>\n<p>V dokonale vyv\u00e1\u017een\u00e9m t\u0159\u00edf\u00e1zov\u00e9m syst\u00e9mu prot\u00e9k\u00e1 ka\u017edou f\u00e1z\u00ed stejn\u00fd proud (\u00b110 %) a neutr\u00e1lem prot\u00e9k\u00e1 minim\u00e1ln\u00ed proud (prim\u00e1rn\u011b harmonick\u00e9). Nicm\u00e9n\u011b, re\u00e1ln\u00e9 instalace z\u0159\u00eddka dosahuj\u00ed t\u00e9to rovnov\u00e1hy z d\u016fvodu:<\/p>\n<ol>\n<li><strong>Distribuce jednof\u00e1zov\u00e9 z\u00e1t\u011b\u017ee<\/strong>: V\u011bt\u0161ina komer\u010dn\u00edch a reziden\u010dn\u00edch z\u00e1t\u011b\u017e\u00ed je jednof\u00e1zov\u00e1 (<a href=\"https:\/\/test.viox.com\/cs\/timer-switch-for-pump\/\">osv\u011btlen\u00ed<\/a>, kancel\u00e1\u0159sk\u00e9 vybaven\u00ed, po\u010d\u00edta\u010de). Kdy\u017e se tyto z\u00e1t\u011b\u017ee koncentruj\u00ed na jednu nebo dv\u011b f\u00e1ze, doch\u00e1z\u00ed k v\u00fdznamn\u00e9 nevyv\u00e1\u017eenosti.<\/li>\n<li><strong>N\u00e1b\u011bhov\u00e9 proudy motor\u016f<\/strong>: T\u0159\u00edf\u00e1zov\u00e9 <a href=\"https:\/\/test.viox.com\/cs\/contactor-vs-circuit-breaker\/\">motory a styka\u010de<\/a> odeb\u00edraj\u00ed vysok\u00e9 n\u00e1b\u011bhov\u00e9 proudy b\u011bhem spou\u0161t\u011bn\u00ed. Pokud je syst\u00e9m ji\u017e nevyv\u00e1\u017een\u00fd, m\u016f\u017ee tato p\u0159echodn\u00e1 ud\u00e1lost spustit ochranu ATS proti ztr\u00e1t\u011b f\u00e1ze nebo nevyv\u00e1\u017eenosti nap\u011bt\u00ed.<\/li>\n<li><strong>V\u00fdstup sol\u00e1rn\u00edho invertoru<\/strong>: <a href=\"https:\/\/test.viox.com\/cs\/what-is-a-hybrid-inverter\/\">Hybridn\u00ed invertory<\/a> v t\u0159\u00edf\u00e1zov\u00fdch syst\u00e9mech mohou produkovat m\u00edrn\u011b nevyv\u00e1\u017een\u00fd v\u00fdstup, zejm\u00e9na kdy\u017e sou\u010dasn\u011b prob\u00edh\u00e1 nab\u00edjen\u00ed baterie a invertov\u00e1n\u00ed.<\/li>\n<\/ol>\n<h3>Jak nevyv\u00e1\u017eenost ovliv\u0148uje provoz ATS<\/h3>\n<p>Modern\u00ed automatick\u00e9 p\u0159ep\u00edna\u010de monitoruj\u00ed <strong>velikost nap\u011bt\u00ed a f\u00e1zov\u00fd \u00fahel<\/strong> na v\u0161ech vodi\u010d\u00edch. Typick\u00e1 nastaven\u00ed vypnut\u00ed ATS p\u0159i nevyv\u00e1\u017eenosti nap\u011bt\u00ed:<\/p>\n<ul>\n<li><strong>Nevyv\u00e1\u017eenost f\u00e1zov\u00e9ho nap\u011bt\u00ed<\/strong>: \u00b110 % od pr\u016fm\u011bru<\/li>\n<li><strong>Detekce ztr\u00e1ty f\u00e1ze<\/strong>: Jak\u00e1koli f\u00e1ze klesne pod 85 % nomin\u00e1ln\u00ed hodnoty<\/li>\n<li><strong>Detekce posunu neutr\u00e1lu<\/strong>: Nap\u011bt\u00ed neutr\u00e1lu p\u0159ekro\u010d\u00ed 10 % f\u00e1zov\u00e9ho nap\u011bt\u00ed<\/li>\n<\/ul>\n<p><strong>Re\u00e1ln\u00fd sc\u00e9n\u00e1\u0159 selh\u00e1n\u00ed:<\/strong><\/p>\n<p>T\u0159\u00edf\u00e1zov\u00fd syst\u00e9m 415 V se \u0161patn\u00fdm vyv\u00e1\u017een\u00edm z\u00e1t\u011b\u017ee:<\/p>\n<ul>\n<li>L1: 95 A (bl\u00edzko kapacity)<\/li>\n<li>L2: 45 A (lehk\u00e1 z\u00e1t\u011b\u017e)<\/li>\n<li>L3: 60 A (st\u0159edn\u00ed z\u00e1t\u011b\u017e)<\/li>\n<\/ul>\n<p>Kdy\u017e za\u0159\u00edzen\u00ed spust\u00ed velk\u00fd <a href=\"https:\/\/test.viox.com\/cs\/how-to-select-contactors-and-circuit-breakers-based-on-motor-power\/\">t\u0159\u00edf\u00e1zov\u00fd motor<\/a> (nap\u0159. kompresor HVAC), nap\u011bt\u00ed L1 klesne na 380 V, zat\u00edmco L2 a L3 z\u016fstanou na 410 V. \u0158\u00eddic\u00ed jednotka ATS interpretuje tuto 7,3% nevyv\u00e1\u017eenost jako potenci\u00e1ln\u00ed ztr\u00e1tu f\u00e1ze a m\u016f\u017ee zbyte\u010dn\u011b p\u0159epnout na gener\u00e1tor, co\u017e naru\u0161\u00ed provoz.<\/p>\n<h3>Prevence vypnut\u00ed ATS souvisej\u00edc\u00edch s nevyv\u00e1\u017eenost\u00ed<\/h3>\n<p><strong>Technick\u00e1 \u0159e\u0161en\u00ed:<\/strong><\/p>\n<ol>\n<li><strong>Anal\u00fdza distribuce z\u00e1t\u011b\u017ee<\/strong>: B\u011bhem po\u010d\u00e1te\u010dn\u00ed instalace zm\u011b\u0159te proud na ka\u017ed\u00e9 f\u00e1zi b\u011bhem \u0161pi\u010dkov\u00e9ho provozu. Redistribuujte <a href=\"https:\/\/test.viox.com\/cs\/single-phase-vs-three-phase-panelboards-guide\/\">jednof\u00e1zov\u00e9 z\u00e1t\u011b\u017ee<\/a> pro dosa\u017een\u00ed vyv\u00e1\u017een\u00ed \u00b115 % nap\u0159\u00ed\u010d L1, L2, L3.<\/li>\n<li><strong>M\u011bkk\u00e9 start\u00e9ry motor\u016f<\/strong>: Instalujte <a href=\"https:\/\/test.viox.com\/cs\/star-delta-starter-wiring-diagram-sizing-selection-guide\/\">soft start ovlada\u010de<\/a> na velk\u00fdch t\u0159\u00edf\u00e1zov\u00fdch motorech ke sn\u00ed\u017een\u00ed z\u00e1b\u011brov\u00e9ho proudu a poklesu nap\u011bt\u00ed b\u011bhem spou\u0161t\u011bn\u00ed.<\/li>\n<li><strong>Zv\u00fd\u0161en\u00e1 tolerance nevyv\u00e1\u017eenosti nap\u011bt\u00ed<\/strong>: Pokud v\u00e1\u0161 ATS umo\u017e\u0148uje poln\u00ed nastaven\u00ed vyp\u00ednac\u00edch charakteristik, zvy\u0161te toleranci nevyv\u00e1\u017eenosti nap\u011bt\u00ed z 10% na 15% (pouze pokud to kvalita nap\u00e1jen\u00ed dovoluje). P\u0159ed \u00fapravou tov\u00e1rn\u00edho nastaven\u00ed se pora\u010fte s technickou podporou VIOX.<\/li>\n<li><strong>Panely pro vyrovn\u00e1v\u00e1n\u00ed f\u00e1z\u00ed<\/strong>: Pro provozy s p\u0159ev\u00e1\u017en\u011b jednof\u00e1zov\u00fdmi z\u00e1t\u011b\u017eemi instalujte automatick\u00e9 distribu\u010dn\u00ed panely pro vyrovn\u00e1v\u00e1n\u00ed f\u00e1z\u00ed, kter\u00e9 dynamicky rotuj\u00ed z\u00e1t\u011b\u017ee mezi f\u00e1zemi.<\/li>\n<li><strong>Dimenzov\u00e1n\u00ed gener\u00e1toru<\/strong>: Zajist\u011bte, aby kapacita z\u00e1lo\u017en\u00edho gener\u00e1toru p\u0159ekra\u010dovala celkovou z\u00e1t\u011b\u017e alespo\u0148 o 25%, aby byla zachov\u00e1na stabilita nap\u011bt\u00ed b\u011bhem nevyv\u00e1\u017een\u00e9ho zat\u00ed\u017een\u00ed. Poddimenzovan\u00fd gener\u00e1tor zes\u00edl\u00ed probl\u00e9my s nevyv\u00e1\u017eenost\u00ed nap\u011bt\u00ed.<\/li>\n<\/ol>\n<p>Pokud v\u00e1\u0161 ATS zaznamen\u00e1v\u00e1 \u010dast\u00e9 ne\u017e\u00e1douc\u00ed p\u0159ep\u00edn\u00e1n\u00ed z d\u016fvodu nevyv\u00e1\u017eenosti nap\u011bt\u00ed, nahl\u00e9dn\u011bte do na\u0161eho komplexn\u00edho <a href=\"https:\/\/test.viox.com\/cs\/ats-troubleshooting-generator-wont-transfer\/\">pr\u016fvodce odstra\u0148ov\u00e1n\u00edm probl\u00e9m\u016f s ATS<\/a> kter\u00fd se zab\u00fdv\u00e1 monitorov\u00e1n\u00edm nap\u011bt\u00ed, nastaven\u00edm rel\u00e9 a postupy ov\u011b\u0159ov\u00e1n\u00ed pom\u011bru CT.<\/p>\n<h3>Dal\u0161\u00ed aspekty n\u00e1vrhu syst\u00e9mu<\/h3>\n<p>P\u0159i integraci ATS do nov\u00e9ho nebo st\u00e1vaj\u00edc\u00edho elektrick\u00e9ho distribu\u010dn\u00edho syst\u00e9mu zva\u017ete tyto souvisej\u00edc\u00ed komponenty:<\/p>\n<ul>\n<li><a href=\"https:\/\/test.viox.com\/cs\/what-is-breaker-selectivity-coordination-guide\/\"><strong>Koordinace jisti\u010d\u016f<\/strong><\/a>: Zajist\u011bte, aby se ochrann\u00e1 za\u0159\u00edzen\u00ed na vstupu a v\u00fdstupu spr\u00e1vn\u011b koordinovala b\u011bhem p\u0159ep\u00ednac\u00edch operac\u00ed ATS<\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/surge-protection-devices-vs-surge-arresters\/\"><strong>P\u0159ep\u011b\u0165ov\u00e1 ochrana<\/strong><\/a>: Nainstalujte SPDs typu 2 na stran\u011b s\u00edt\u011b i gener\u00e1toru ATS, abyste se ochr\u00e1nili p\u0159ed sp\u00ednac\u00edmi p\u0159echodov\u00fdmi jevy<\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/how-to-ground-an-electrical-panel\/\"><strong>Spr\u00e1vn\u00e9 uzemn\u011bn\u00ed<\/strong><\/a>: Ov\u011b\u0159te, zda syst\u00e9my zemnic\u00edch elektrod spl\u0148uj\u00ed po\u017eadavky norem pro samostatn\u011b odvozen\u00e9 syst\u00e9my<\/li>\n<li><a href=\"https:\/\/test.viox.com\/cs\/load-center-vs-panelboard-nec-guide\/\"><strong>V\u00fdb\u011br distribu\u010dn\u00edho panelu<\/strong><\/a>: P\u0159izp\u016fsobte specifikace panelu v\u00fdstupn\u00edm jmenovit\u00fdm hodnot\u00e1m a konfiguraci p\u00f3l\u016f ATS<\/li>\n<\/ul>\n<figure style=\"text-align: center; margin: 20px 0;\">\n        <img decoding=\"async\" src=\"https:\/\/img.viox.com\/Three-phase-load-imbalance-effects-on-ATS-performance-showing-balanced-vs-unbalanced-system-comparison-with-voltage-and-current-measurements.webp\" alt=\"Three-phase load imbalance effects on ATS performance showing balanced vs unbalanced system comparison with voltage and current measurements\" style=\"max-width: 100%; height: auto;\"><figcaption style=\"font-style: italic; color: #555; margin-top: 8px;\">Obr\u00e1zek 5: Vizualizace d\u016fsledk\u016f nevyv\u00e1\u017eenosti z\u00e1t\u011b\u017ee na v\u00fdkon ATS, srovn\u00e1n\u00ed vyv\u00e1\u017een\u00e9ho provozu se stavy upozorn\u011bn\u00ed na nevyv\u00e1\u017eenost.<\/figcaption><\/figure>\n<h2>Rychl\u00e1 reference: Matice v\u00fdb\u011bru ATS<\/h2>\n<table border=\"1\" style=\"border-collapse: collapse; width: 100%; text-align: left;\">\n<thead>\n<tr>\n<th>Aplikace<\/th>\n<th>Nap\u011b\u0165ov\u00fd syst\u00e9m<\/th>\n<th>Typ zat\u00ed\u017een\u00ed<\/th>\n<th>Doporu\u010den\u00e9 ATS<\/th>\n<th>Kritick\u00e9 hledisko<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Z\u00e1lohov\u00e1n\u00ed dom\u00e1cnosti<\/td>\n<td>240V jednof\u00e1zov\u00e9<\/td>\n<td>Sm\u00ed\u0161en\u00e1 dom\u00e1cnost<\/td>\n<td>2P (100-200A)<\/td>\n<td>Standardn\u00ed 2-p\u00f3lov\u00e9 dosta\u010duj\u00edc\u00ed<\/td>\n<\/tr>\n<tr>\n<td>RV\/Mobiln\u00ed syst\u00e9my<\/td>\n<td>120\/240V d\u011blen\u00e1 f\u00e1ze<\/td>\n<td>Sm\u00ed\u0161en\u00e9 120V+240V<\/td>\n<td>3P nebo 4P (30-50A)<\/td>\n<td>Mus\u00ed p\u0159ep\u00ednat ob\u011b hork\u00e9 f\u00e1ze<\/td>\n<\/tr>\n<tr>\n<td>Mal\u00e9 komer\u010dn\u00ed instalace<\/td>\n<td>240V jednof\u00e1zov\u00e9<\/td>\n<td>Kancel\u00e1\u0159 + HVAC<\/td>\n<td>2P (200-400A)<\/td>\n<td>Dimenzov\u00e1n\u00ed pro z\u00e1b\u011brov\u00fd proud<\/td>\n<\/tr>\n<tr>\n<td>Lehk\u00fd pr\u016fmysl<\/td>\n<td>415V t\u0159\u00edf\u00e1zov\u00e9<\/td>\n<td>V\u011bt\u0161inou motory<\/td>\n<td>3P (100-400A)<\/td>\n<td>Zkontrolujte um\u00edst\u011bn\u00ed neutr\u00e1ln\u00edho spoje<\/td>\n<\/tr>\n<tr>\n<td><strong>Hybridn\u00ed sol\u00e1rn\u00ed<\/strong><\/td>\n<td><strong>415V t\u0159\u00edf\u00e1zov\u00e9<\/strong><\/td>\n<td><strong>M\u011bni\u010d + s\u00ed\u0165<\/strong><\/td>\n<td><strong>4P (63-250A)<\/strong><\/td>\n<td><strong>Zabra\u0148uje zemn\u00edm smy\u010dk\u00e1m<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Z\u00e1lohov\u00e1n\u00ed gener\u00e1torem<\/td>\n<td>400V t\u0159\u00edf\u00e1zov\u00e9<\/td>\n<td>Kritick\u00e1 zat\u00ed\u017een\u00ed<\/td>\n<td>4P (100-630A)<\/td>\n<td>Po\u017eadov\u00e1no pro samostatn\u011b odvozen\u00e9<\/td>\n<\/tr>\n<tr>\n<td>Datov\u00e9 centrum<\/td>\n<td>400V t\u0159\u00edf\u00e1zov\u00e9<\/td>\n<td>UPS syst\u00e9my<\/td>\n<td>4P (400-1000A)<\/td>\n<td>Rychl\u00e9 p\u0159ep\u00edn\u00e1n\u00ed, mo\u017enost bypassu<\/td>\n<\/tr>\n<tr>\n<td>V\u00fdrobn\u00ed<\/td>\n<td>415V t\u0159\u00edf\u00e1zov\u00e9<\/td>\n<td>T\u011b\u017ek\u00e9 stroje<\/td>\n<td>4P (250-800A)<\/td>\n<td>Vyrovn\u00e1v\u00e1n\u00ed z\u00e1t\u011b\u017ee kritick\u00e9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>FAQ: B\u011b\u017en\u00e9 ot\u00e1zky ke konfiguraci p\u00f3l\u016f ATS<\/h2>\n<p><strong>Ot\u00e1zka: Mohu pou\u017e\u00edt 3-p\u00f3lov\u00e9 ATS se 4-vodi\u010dov\u00fdm t\u0159\u00edf\u00e1zov\u00fdm syst\u00e9mem?<\/strong><\/p>\n<p>Ano, ale pouze pokud zachov\u00e1te pevn\u00e9 neutr\u00e1ln\u00ed p\u0159ipojen\u00ed a zajist\u00edte, aby neutr\u00e1l gener\u00e1toru NEBYL spojen se zem\u00ed. Gener\u00e1tor mus\u00ed fungovat jako nesamostatn\u011b odvozen\u00fd syst\u00e9m. Nicm\u00e9n\u011b pro <a href=\"https:\/\/test.viox.com\/cs\/hybrid-inverter-ats-wiring-guide-2-wire-start-neutral-bonding\/\">hybridn\u00ed sol\u00e1rn\u00ed syst\u00e9my<\/a> a instalace s ochranou RCD doporu\u010duje VIOX 4-p\u00f3lov\u00e9 konfigurace, aby se zabr\u00e1nilo zemn\u00edm smy\u010dk\u00e1m a ne\u017e\u00e1douc\u00edmu vyp\u00edn\u00e1n\u00ed.<\/p>\n<p><strong>Ot\u00e1zka: Pro\u010d m\u016fj syst\u00e9m s d\u011blenou f\u00e1z\u00ed pot\u0159ebuje 3-p\u00f3lov\u00fd p\u0159ep\u00edna\u010d?<\/strong><\/p>\n<p>Syst\u00e9my s d\u011blenou f\u00e1z\u00ed 120\/240 V maj\u00ed dva f\u00e1zov\u00e9 vodi\u010de (L1, L2), kter\u00e9 mus\u00ed b\u00fdt oba sp\u00edn\u00e1ny, aby bylo mo\u017en\u00e9 spr\u00e1vn\u011b nap\u00e1jet z\u00e1t\u011b\u017ee 240 V a udr\u017eovat vyv\u00e1\u017een\u00e9 obvody 120 V. Standardn\u00ed dvoup\u00f3lov\u00fd sp\u00edna\u010d sp\u00edn\u00e1 pouze jednu f\u00e1zovou v\u011btev, tak\u017ee polovina va\u0161ich obvod\u016f 120 V a v\u0161echny z\u00e1t\u011b\u017ee 240 V jsou b\u011bhem p\u0159ep\u00edn\u00e1n\u00ed bez nap\u00e1jen\u00ed. Pou\u017eijte 3P ATS konfigurovan\u00fd pro d\u011blenou f\u00e1zi, nebo l\u00e9pe 4P ATS s p\u0159ep\u00edn\u00e1n\u00edm neutr\u00e1lu.<\/p>\n<p><strong>Ot\u00e1zka: Co se stane, kdy\u017e spoj\u00edm neutr\u00e1l gener\u00e1toru v 3-p\u00f3lov\u00e9m syst\u00e9mu ATS?<\/strong><\/p>\n<p>Vytv\u00e1\u0159\u00edte nebezpe\u010dnou paraleln\u00ed zemn\u00edc\u00ed cestu. Pokud jsou nulov\u00e9 vodi\u010de s\u00edt\u011b i gener\u00e1toru uzemn\u011bny a propojeny p\u0159es pevn\u00fd nulov\u00fd m\u016fstek, zemn\u00ed poruchov\u00e9 proudy se mohou vracet kteroukoli cestou. To poru\u0161uje po\u017eadavky NEC 250.20, zp\u016fsobuje nespr\u00e1vnou funkci zemn\u00edch ochrann\u00fdch prvk\u016f a vytv\u00e1\u0159\u00ed cirkuluj\u00edc\u00ed proudy mezi r\u016fzn\u00fdmi zemnic\u00edmi elektrodami. P\u0159i pou\u017eit\u00ed 3P ATS v\u017edy odstra\u0148te propojen\u00ed nulov\u00e9ho vodi\u010de gener\u00e1toru se zem\u00ed.<\/p>\n<p><strong>Ot\u00e1zka: Jak zjist\u00edm, zda je m\u016fj syst\u00e9m dostate\u010dn\u011b nevyv\u00e1\u017een\u00fd, aby zp\u016fsobil probl\u00e9my s ATS?<\/strong><\/p>\n<p>Zm\u011b\u0159te f\u00e1zov\u00e9 proudy b\u011bhem norm\u00e1ln\u00edho provozu pomoc\u00ed <a href=\"https:\/\/test.viox.com\/cs\/how-to-really-test-mccb-test-button-lie\/\">kle\u0161\u0165ov\u00fd m\u011b\u0159i\u010d<\/a>. Vypo\u010d\u00edtejte nevyv\u00e1\u017eenost pomoc\u00ed tohoto vzorce:<\/p>\n<blockquote>\n<p>Nevyv\u00e1\u017eenost % = (Maxim\u00e1ln\u00ed odchylka od pr\u016fm\u011bru \/ Pr\u016fm\u011brn\u00fd proud) \u00d7 100<\/p>\n<\/blockquote>\n<p>Pokud nevyv\u00e1\u017eenost p\u0159ekro\u010d\u00ed 20%, p\u0159erozd\u011blte jednof\u00e1zov\u00e9 z\u00e1t\u011b\u017ee mezi f\u00e1ze nebo upravte nastaven\u00ed vypnut\u00ed p\u0159i nevyv\u00e1\u017eenosti nap\u011bt\u00ed ATS (pokud je to povoleno). Pod\u00edvejte se na na\u0161e <a href=\"https:\/\/test.viox.com\/cs\/ats-troubleshooting-generator-wont-transfer\/\">pr\u016fvodce odstra\u0148ov\u00e1n\u00edm probl\u00e9m\u016f s ATS<\/a> pro podrobn\u00e9 postupy m\u011b\u0159en\u00ed.<\/p>\n<p><strong>Ot\u00e1zka: Mohu dodate\u010dn\u011b upravit 3p\u00f3lov\u00fd ATS na 4p\u00f3lovou konfiguraci?<\/strong><\/p>\n<p>Ne. Mechanick\u00e1 konstrukce a uspo\u0159\u00e1d\u00e1n\u00ed kontakt\u016f jsou z\u00e1sadn\u011b odli\u0161n\u00e9. T\u0159\u00edp\u00f3lov\u00fd ATS m\u00e1 t\u0159i sp\u00ednac\u00ed kontakty plus pevnou neutr\u00e1ln\u00ed p\u0159\u00edpojnici. \u010cty\u0159p\u00f3lov\u00fd ATS m\u00e1 \u010dty\u0159i nez\u00e1visl\u00e9 sp\u00ednac\u00ed kontakty. Upgrade vy\u017eaduje kompletn\u00ed v\u00fdm\u011bnu ATS. VIOX nab\u00edz\u00ed slu\u017eby modernizace s minim\u00e1ln\u00edmi prostoji pro kritick\u00e9 aplikace \u2013 kontaktujte technickou podporu pro posouzen\u00ed na m\u00edst\u011b.<\/p>\n<p><strong>Ot\u00e1zka: Pot\u0159ebuji r\u016fzn\u00e9 jisti\u010de pro 3P vs. 4P syst\u00e9my ATS?<\/strong><\/p>\n<p>Na stran\u011b zdroje a na stran\u011b z\u00e1t\u011b\u017ee <a href=\"https:\/\/test.viox.com\/cs\/types-of-circuit-breakers\/\">jisti\u010de<\/a> by se m\u011bly shodovat s konfigurac\u00ed p\u00f3l\u016f ATS. Pro 3P syst\u00e9my ATS pou\u017e\u00edvejte 3p\u00f3lov\u00e9 <a href=\"https:\/\/test.viox.com\/cs\/what-is-a-molded-case-circuit-breaker-mccb\/\">MCCB<\/a> nebo <a href=\"https:\/\/test.viox.com\/cs\/complete-guide-to-air-circuit-breakers-acb\/\">ACBs<\/a>. Pro 4P syst\u00e9my ATS pou\u017e\u00edvejte 4p\u00f3lov\u00e9 jisti\u010de, abyste zachovali \u00faplnou izolaci zdroje. To je obzvl\u00e1\u0161t\u011b d\u016fle\u017eit\u00e9 v <a href=\"https:\/\/test.viox.com\/cs\/what-does-a-solar-combiner-box-do\/\">sol\u00e1rn\u00edch instalac\u00edch<\/a> kde DC a AC syst\u00e9my mus\u00ed z\u016fstat izolovan\u00e9.<\/p>\n<hr>\n<p><strong>VIOX Electric<\/strong> dodala od roku 2008 v\u00edce ne\u017e 15 000 automatick\u00fdch p\u0159ep\u00edna\u010d\u016f pr\u016fmyslov\u00fdm a komer\u010dn\u00edm z\u00e1kazn\u00edk\u016fm po cel\u00e9m sv\u011bt\u011b. N\u00e1\u0161 in\u017een\u00fdrsk\u00fd t\u00fdm poskytuje bezplatn\u00e9 revize n\u00e1vrh\u016f syst\u00e9m\u016f pro projekty vy\u017eaduj\u00edc\u00ed specializovan\u00e9 konfigurace ATS. Kontaktujte na\u0161i technickou podporu na <a href=\"mailto:sales@viox.com\">sales@viox.com<\/a> nebo nav\u0161tivte na\u0161i kompletn\u00ed <a href=\"https:\/\/test.viox.com\/cs\/\">produktovou \u0159adu ATS<\/a> pro specifikace a v\u00fdkresy.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>Understanding Single-Phase vs. Three-Phase Power Systems Single-Phase Systems (1P+N): 220-240V Applications Single-phase power systems operate at 220-240V and consist of one hot conductor (L1) and one neutral conductor (N). These systems typically require a 2-pole (2P) automatic transfer switch that switches both the hot conductor and neutral simultaneously. Primary Applications: Residential buildings and apartments Small [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":21246,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"inline_featured_image":false,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[1],"tags":[],"class_list":["post-21245","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blog"],"_links":{"self":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/21245","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/comments?post=21245"}],"version-history":[{"count":1,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/21245\/revisions"}],"predecessor-version":[{"id":21247,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/posts\/21245\/revisions\/21247"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media\/21246"}],"wp:attachment":[{"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/media?parent=21245"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/categories?post=21245"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/test.viox.com\/cs\/wp-json\/wp\/v2\/tags?post=21245"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}