{"id":4440,"date":"2025-05-28T15:47:41","date_gmt":"2025-05-28T15:47:41","guid":{"rendered":"https:\/\/www.kmdpower.com\/?p=4440"},"modified":"2025-05-28T15:47:43","modified_gmt":"2025-05-28T15:47:43","slug":"difference-between-kva-and-kw","status":"publish","type":"post","link":"https:\/\/www.kmdpower.com\/cs\/news\/difference-between-kva-and-kw\/","title":{"rendered":"Rozd\u00edl mezi KVA a KW"},"content":{"rendered":"<h2 class=\"wp-block-heading\">\u00davod:<\/h2><p>Po desetilet\u00ed zp\u016fsoboval zmatek v pojmech KVA a KW n\u00e1kladn\u00e9 chyby p\u0159i navrhov\u00e1n\u00ed energetick\u00fdch syst\u00e9m\u016f - pochopen\u00ed tohoto rozd\u00edlu je v\u0161ak jednodu\u0161\u0161\u00ed, ne\u017e si mysl\u00edte.<\/p><p>V\u00edce ne\u017e 25 let se zab\u00fdv\u00e1m energetick\u00fdmi syst\u00e9my, od robustn\u00edch pr\u016fmyslov\u00fdch bateriov\u00fdch \u00falo\u017ei\u0161\u0165 a\u017e po nejmodern\u011bj\u0161\u00ed integrace obnoviteln\u00fdch zdroj\u016f energie, a jsem p\u0159\u00edm\u00fdm sv\u011bdkem toho, jak toto nedorozum\u011bn\u00ed m\u016f\u017ee zni\u010dit projekty, rozpo\u010dty a n\u011bkdy i ego.<\/p><p>Tento \u010dl\u00e1nek nen\u00ed jen dal\u0161\u00edm such\u00fdm technick\u00fdm popisem. Jsem tu proto, abych v\u00e1s zbavil \u017eargonu, poskytl v\u00e1m jasn\u00e9 definice, praktick\u00e9 p\u0159evody a p\u0159\u00edb\u011bhy z re\u00e1ln\u00e9ho sv\u011bta, kter\u00e9 odhaluj\u00ed b\u011b\u017en\u00e9 myln\u00e9 p\u0159edstavy. A ano, zpochybn\u00edm n\u011bkter\u00e9 zako\u0159en\u011bn\u00e9 p\u0159edstavy, proto\u017ee up\u0159\u00edmn\u011b \u0159e\u010deno, v oboru to necht\u011bj\u00ed p\u0159iznat, ale my jsme se v \u00fa\u010din\u00edku m\u00fdlili ve v\u00edce ohledech.<\/p><p>Dimenzujete sv\u00e9 za\u0159\u00edzen\u00ed s ohledem na \u00fa\u010dinnost nebo na neo\u010dek\u00e1van\u00e9 n\u00e1klady? Poj\u010fme na to.<\/p><div class=\"wp-block-image\"><figure class=\"aligncenter size-full\"><img fetchpriority=\"high\" decoding=\"async\" width=\"769\" height=\"790\" src=\"https:\/\/www.kmdpower.com\/wp-content\/uploads\/Kamada-Power-All-In-One-Solar-System-Suplier-Factory-Manufacturers-in-China-1.jpg\" alt=\"\" class=\"wp-image-4175\"\/><\/figure><\/div><p class=\"has-text-align-center\"><strong><a href=\"https:\/\/www.kmdpower.com\/cs\/48v-200ah-10kwh-5kwh-lithium-lifepo4-batteryall-in-one-solar-storage-system-hybrid-system-built-in-inverter-product\/\" target=\"_blank\" rel=\"noreferrer noopener\">48v 200Ah 10kWh All In One Solar Storage System Hybridn\u00ed syst\u00e9m Vestav\u011bn\u00fd m\u011bni\u010d<\/a><\/strong><\/p><h2 class=\"wp-block-heading\">Co je to KVA a KW?<\/h2><h3 class=\"wp-block-heading\">Co je KW (kilowatt)?<\/h3><p>KW je zkratka pro kilowatt - m\u00edru v\u00fdkonu <em>skute\u010dn\u00e1 s\u00edla<\/em>. To je s\u00edla, kter\u00e1 skute\u010dn\u011b kon\u00e1 u\u017eite\u010dnou pr\u00e1ci. Kdy\u017e zapnete topen\u00ed, mno\u017estv\u00ed elekt\u0159iny, kter\u00e9 se p\u0159em\u011bn\u00ed na teplo, se m\u011b\u0159\u00ed v kilowattech. Jednoduch\u00e9, \u017ee?<\/p><p>P\u0159edstavte si KW jako pen\u00edze, kter\u00e9 skute\u010dn\u011b utrat\u00edte za \u00fa\u010det za elekt\u0159inu. Je to <em>spot\u0159ebovan\u00e1 energie<\/em>, doslova \u0161\u0165\u00e1va poh\u00e1n\u011bj\u00edc\u00ed motory, sv\u011btla a k\u00e1vovar.<\/p><p>1 KW se rovn\u00e1 1 000 watt\u016f. Oh\u0159\u00edva\u010d o v\u00fdkonu 1 KW tedy odeb\u00edr\u00e1 1 000 watt\u016f skute\u010dn\u00e9ho v\u00fdkonu.<\/p><p>Ale tady to za\u010d\u00edn\u00e1 b\u00fdt o\u0161emetn\u00e9. KW v\u00e1s informuje o tom, co se pou\u017e\u00edv\u00e1 - ne o tom, co te\u010de ve vodi\u010d\u00edch.<\/p><h3 class=\"wp-block-heading\">Co je to KVA (kilovolt-amp\u00e9r)?<\/h3><p>KVA je nyn\u00ed jin\u00e1. Je to zkratka pro kilovolt-amp\u00e9r a m\u011b\u0159\u00ed se j\u00edm <em>zd\u00e1nliv\u00fd v\u00fdkon<\/em>. Jedn\u00e1 se o celkov\u00fd v\u00fdkon prot\u00e9kaj\u00edc\u00ed va\u0161\u00ed elektrickou soustavou - kombinaci re\u00e1ln\u00e9ho v\u00fdkonu (KW) a jalov\u00e9ho v\u00fdkonu.<\/p><p>Jalov\u00fd v\u00fdkon je z\u00e1ludn\u00e1 slo\u017eka, kter\u00e1 nevykon\u00e1v\u00e1 \u017e\u00e1dnou u\u017eite\u010dnou pr\u00e1ci, ale je nezbytn\u00e1 pro udr\u017een\u00ed \u00farovn\u011b nap\u011bt\u00ed a magnetick\u00e9ho pole v motorech a transform\u00e1torech.<\/p><p>P\u0159edstavte si KVA jako plnou kapacitu potrub\u00ed, kter\u00fdm te\u010de voda, v\u010detn\u011b v\u0161ech z\u00e1krut, odbo\u010dek a slep\u00fdch uli\u010dek - nejen mno\u017estv\u00ed, kter\u00e9 skon\u010d\u00ed ve va\u0161\u00ed sklenici.<\/p><p>Transform\u00e1tory, gener\u00e1tory a mnoho typ\u016f elektrick\u00fdch za\u0159\u00edzen\u00ed se ud\u00e1v\u00e1 v KVA, proto\u017ee mus\u00ed zvl\u00e1dnout ve\u0161ker\u00fd proud, ne jen tu \u010d\u00e1st, kter\u00e1 se skute\u010dn\u011b pou\u017e\u00edv\u00e1.<\/p><p>Nap\u0159\u00edklad transform\u00e1tor o jmenovit\u00e9m v\u00fdkonu 10 KVA m\u016f\u017ee zpracovat a\u017e 10 kilovoltamp\u00e9r\u016f zd\u00e1nliv\u00e9ho v\u00fdkonu, ani\u017e by se p\u0159eh\u0159\u00e1l.<\/p><h3 class=\"wp-block-heading\">\u00daloha \u00fa\u010din\u00edku v KVA vs. KW<\/h3><p>Zde je kl\u00ed\u010dov\u00e1 informace: \u00fa\u010din\u00edk (PF) je pom\u011br KW a KVA.<\/p><p>PF = KW \u00f7 KVA<\/p><p>Tento pom\u011br ud\u00e1v\u00e1, jak efektivn\u011b v\u00e1\u0161 elektrick\u00fd syst\u00e9m p\u0159em\u011b\u0148uje zd\u00e1nliv\u00fd v\u00fdkon na skute\u010dn\u00fd.<\/p><ul class=\"wp-block-list\"><li>\u00da\u010din\u00edk 1 (nebo 100%) znamen\u00e1, \u017ee ve\u0161ker\u00fd zd\u00e1nliv\u00fd v\u00fdkon je p\u0159em\u011bn\u011bn na skute\u010dn\u00fd v\u00fdkon - dokonal\u00e1 \u00fa\u010dinnost.<\/li>\n\n<li>Hodnota PF men\u0161\u00ed ne\u017e 1 znamen\u00e1, \u017ee \u010d\u00e1st v\u00fdkonu je jalov\u00e1, co\u017e zp\u016fsobuje neefektivitu.<\/li><\/ul><p>Jalov\u00fd v\u00fdkon sni\u017euje \u00fa\u010din\u00edk. A \u0161patn\u00fd \u00fa\u010din\u00edk? Znamen\u00e1 to, \u017ee plat\u00edte za elekt\u0159inu, kter\u00e1 nevykon\u00e1v\u00e1 skute\u010dnou pr\u00e1ci - tich\u00fd zabij\u00e1k \u00fa\u010dinnosti.<\/p><p>\u00da\u010din\u00edk nen\u00ed jen pojem - je to praktick\u00fd ukazatel s re\u00e1ln\u00fdmi ekonomick\u00fdmi a provozn\u00edmi dopady. Normy IEEE a IEC obsahuj\u00ed p\u0159\u00edsn\u00e1 pravidla, ale mnoho za\u0159\u00edzen\u00ed je st\u00e1le p\u0159ehl\u00ed\u017e\u00ed.<\/p><h2 class=\"wp-block-heading\">Jak p\u0159ev\u00e1d\u011bt mezi KVA a KW<\/h2><h3 class=\"wp-block-heading\">P\u0159evodn\u00ed vzorec a jeho v\u00fdznam<\/h3><p>Nejjednodu\u0161\u0161\u00ed vzorec je:<\/p><p><strong>KW = KVA \u00d7 \u00fa\u010din\u00edk (PF)<\/strong><\/p><p>Pokud m\u00e1te gener\u00e1tor o v\u00fdkonu 100 KVA s \u00fa\u010din\u00edkem 0,8, skute\u010dn\u00fd v\u00fdkon, kter\u00fd dod\u00e1v\u00e1, je:<\/p><p>100 \u00d7 0,8 = 80 KW<\/p><p>V\u0161imn\u011bte si, jak z\u00e1sadn\u00ed roli zde hraje PF. \u0160patn\u00fd odhad PF znamen\u00e1 bu\u010f poddimenzov\u00e1n\u00ed, nebo p\u0159edimenzov\u00e1n\u00ed za\u0159\u00edzen\u00ed - v obou p\u0159\u00edpadech jde o drah\u00e9 chyby.<\/p><p>\u00da\u010din\u00edk se obvykle vyjad\u0159uje v desetinn\u00fdch \u010d\u00edslech (nap\u0159. 0,85, 0,95), nikoli v procentech.<\/p><h3 class=\"wp-block-heading\">P\u0159\u00edklady konverze v re\u00e1ln\u00e9m sv\u011bt\u011b<\/h3><ol class=\"wp-block-list\"><li><strong>Sc\u00e9n\u00e1\u0159 gener\u00e1toru:<\/strong> Gener\u00e1tor o v\u00fdkonu 100 KVA pracuj\u00edc\u00ed p\u0159i PF 0,8 dod\u00e1v\u00e1 v\u00fdkon 80 KW. Pokud ignorujete PF a dimenzujete gener\u00e1tor na 100 KW, riskujete p\u0159et\u00ed\u017een\u00ed a poruchu.<\/li>\n\n<li><strong>Zat\u00ed\u017een\u00ed pr\u016fmyslov\u00fdch motor\u016f:<\/strong> Motor o jmenovit\u00e9m v\u00fdkonu 50 KW s PF 0,9 ve skute\u010dnosti vy\u017eaduje p\u0159ibli\u017en\u011b 55,6 KVA zd\u00e1nliv\u00e9ho v\u00fdkonu. Podcen\u011bn\u00ed tohoto v\u00fdkonu znamen\u00e1 p\u0159eh\u0159\u00e1t\u00ed a zkr\u00e1cen\u00ed \u017eivotnosti.<\/li><\/ol><p>V jednom projektu, kter\u00fd jsem vedl, jsme m\u011bli n\u00e1kladnou lekci, kdy\u017e se \u00fadajn\u011b \"vyhovuj\u00edc\u00ed\" gener\u00e1tor neust\u00e1le vyp\u00ednal. Vin\u00edk? Ignorov\u00e1n\u00ed n\u00edzk\u00e9ho PF zp\u016fsoben\u00e9ho induk\u010dn\u00ed z\u00e1t\u011b\u017e\u00ed. Jen tato chyba st\u00e1la des\u00edtky tis\u00edc za prostoje.<\/p><h3 class=\"wp-block-heading\">Pro\u010d je d\u016fle\u017eit\u00e9 p\u0159esn\u00e9 m\u011b\u0159en\u00ed PF<\/h3><p>\u00da\u010din\u00edk p\u0159\u00edmo ovliv\u0148uje \u00fa\u010dtov\u00e1n\u00ed energie, dimenzov\u00e1n\u00ed za\u0159\u00edzen\u00ed a celkovou \u00fa\u010dinnost syst\u00e9mu.<\/p><p>Energetick\u00e9 spole\u010dnosti \u010dasto penalizuj\u00ed z\u00e1kazn\u00edky s n\u00edzk\u00fdm \u00fa\u010din\u00edkem p\u0159\u00edplatky. P\u0159esn\u00e9 m\u011b\u0159en\u00ed PF nen\u00ed voliteln\u00e9, je nezbytn\u00e9.<\/p><p>Modern\u00ed n\u00e1stroje pro sledov\u00e1n\u00ed spot\u0159eby, jako jsou inteligentn\u00ed m\u011b\u0159i\u010de a analyz\u00e1tory spot\u0159eby, nab\u00edzej\u00ed p\u0159ehled o PF v re\u00e1ln\u00e9m \u010dase. N\u011bkter\u00e9 st\u0159\u00edda\u010de a syst\u00e9my \u0159\u00edzen\u00ed spot\u0159eby energie dokonce dynamicky upravuj\u00ed PF.<\/p><p>Ignorovat PF je jako l\u00e9tat naslepo - mysl\u00edte si, \u017ee jste efektivn\u00ed, dokud v\u00e1m nep\u0159ijde \u00fa\u010det.<\/p><h2 class=\"wp-block-heading\">Praktick\u00e9 d\u016fsledky pro energetick\u00e9 syst\u00e9my a za\u0159\u00edzen\u00ed<\/h2><h3 class=\"wp-block-heading\">Dimenzov\u00e1n\u00ed gener\u00e1tor\u016f a transform\u00e1tor\u016f<\/h3><p>Gener\u00e1tory a transform\u00e1tory se ud\u00e1vaj\u00ed v KVA, proto\u017ee mus\u00ed zvl\u00e1dnout plnou z\u00e1t\u011b\u017e v\u010detn\u011b jalov\u00e9ho v\u00fdkonu.<\/p><p>Ignorov\u00e1n\u00ed \u00fa\u010din\u00edku m\u016f\u017ee zp\u016fsobit poddimenzov\u00e1n\u00ed za\u0159\u00edzen\u00ed, co\u017e vede k jeho p\u0159eh\u0159\u00e1t\u00ed, poru\u0161e a neo\u010dek\u00e1van\u00fdm odst\u00e1vk\u00e1m.<\/p><p>Vzpom\u00edn\u00e1m si na z\u00e1kazn\u00edka, u kter\u00e9ho gener\u00e1tor $250K katastrof\u00e1ln\u011b selhal po pouh\u00fdch 18 m\u011bs\u00edc\u00edch - to v\u0161e proto, \u017ee konstruk\u010dn\u00ed t\u00fdm nepo\u010d\u00edtal s 0,7 PF z\u00e1t\u011b\u017ee. Pou\u010den\u00ed? V\u017edy navrhujte na zd\u00e1nliv\u00fd v\u00fdkon, nejen na skute\u010dn\u00fd v\u00fdkon.<\/p><h3 class=\"wp-block-heading\">Syst\u00e9my skladov\u00e1n\u00ed energie z bateri\u00ed a m\u011bni\u010de<\/h3><p><strong><a href=\"https:\/\/www.kmdpower.com\/cs\/commercial-energy-storage-systems\/\" target=\"_blank\" rel=\"noreferrer noopener\">Bateriov\u00e9 syst\u00e9my pro ukl\u00e1d\u00e1n\u00ed energie<\/a><\/strong> a st\u0159\u00edda\u010de tak\u00e9 do zna\u010dn\u00e9 m\u00edry z\u00e1vis\u00ed na rozd\u00edlu mezi KVA a KW.<\/p><p>St\u0159\u00edda\u010de mus\u00ed b\u00fdt dimenzov\u00e1ny tak, aby zvl\u00e1dly \u0161pi\u010dkov\u00e9 zd\u00e1nliv\u00e9 v\u00fdkonov\u00e9 zat\u00ed\u017een\u00ed, nikoliv pouze v\u00fdkon v KW.<\/p><p>Inteligentn\u00ed st\u0159\u00edda\u010de jsou nyn\u00ed vybaveny dynamickou korekc\u00ed PF, kter\u00e1 pom\u00e1h\u00e1 vyrovn\u00e1vat jalov\u00e9 zat\u00ed\u017een\u00ed a zlep\u0161uje celkovou stabilitu s\u00edt\u011b.<\/p><p>Korekce \u00fa\u010din\u00edku u\u017e nen\u00ed jen pr\u016fmyslov\u00fdm luxusem - st\u00e1v\u00e1 se standardn\u00ed prax\u00ed v pr\u016fmyslu. <strong><a href=\"https:\/\/www.kmdpower.com\/cs\/commercial-energy-storage-systems\/\" target=\"_blank\" rel=\"noreferrer noopener\">komer\u010dn\u00ed syst\u00e9my skladov\u00e1n\u00ed energie<\/a><\/strong> a <strong><a href=\"https:\/\/www.kmdpower.com\/cs\/power-wall\/\" target=\"_blank\" rel=\"noreferrer noopener\">reziden\u010dn\u00ed bateriov\u00e9 syst\u00e9my<\/a><\/strong>.<\/p><h3 class=\"wp-block-heading\">\u0158\u00edzen\u00ed pr\u016fmyslov\u00e9 a komer\u010dn\u00ed z\u00e1t\u011b\u017ee<\/h3><p>Jalov\u00e1 z\u00e1t\u011b\u017e, jako jsou motory a sv\u011bteln\u00e9 p\u0159ed\u0159adn\u00edky, sni\u017euje PF.Korekce \u00fa\u010din\u00edku m\u016f\u017ee sn\u00ed\u017eit pokuty, sn\u00ed\u017eit ztr\u00e1ty a prodlou\u017eit \u017eivotnost za\u0159\u00edzen\u00ed.<\/p><p>V jednom velk\u00e9m v\u00fdrobn\u00edm z\u00e1vod\u011b jsem konzultoval sn\u00ed\u017een\u00ed \u00fa\u010dt\u016f za energii o 12% po instalaci kondenz\u00e1torov\u00fdch bateri\u00ed pro korekci PF - n\u00e1vratnost byla krat\u0161\u00ed ne\u017e jeden rok.<\/p><h2 class=\"wp-block-heading\">Obvykl\u00e9 myln\u00e9 p\u0159edstavy a kritick\u00e9 post\u0159ehy<\/h2><h3 class=\"wp-block-heading\">\"KVA je jako KW, \u017ee?\" - Vyvr\u00e1cen\u00ed m\u00fdtu<\/h3><p>P\u0159\u00edli\u0161 mnoho lid\u00ed p\u0159edpokl\u00e1d\u00e1, \u017ee KVA a KW jsou zam\u011bniteln\u00e9. Tento p\u0159edpoklad vede k neefektivit\u011b, zbyte\u010dn\u00fdm n\u00e1klad\u016fm a zat\u00ed\u017een\u00ed za\u0159\u00edzen\u00ed.Odv\u011btv\u00ed to nechce p\u0159iznat, ale je to n\u00e1kladn\u00e1 chyba, kter\u00e1 se denn\u011b opakuje.<\/p><h3 class=\"wp-block-heading\">P\u0159ehl\u00ed\u017een\u00e9 vedlej\u0161\u00ed \u00fa\u010dinky \u0161patn\u00e9ho \u00fa\u010din\u00edku<\/h3><p>\u0160patn\u00fd PF zp\u016fsobuje zv\u00fd\u0161en\u00e9 ztr\u00e1ty, p\u0159eh\u0159\u00edv\u00e1n\u00ed a zkr\u00e1cenou \u017eivotnost transform\u00e1tor\u016f a motor\u016f.Energetick\u00e9 spole\u010dnosti tak\u00e9 penalizuj\u00ed \u0161patn\u00fd PF, co\u017e zvy\u0161uje provozn\u00ed n\u00e1klady.<\/p><p>Nejde jen o efektivitu - jde o dlouhou \u017eivotnost za\u0159\u00edzen\u00ed a sn\u00ed\u017een\u00ed n\u00e1klad\u016f.<\/p><h3 class=\"wp-block-heading\">Moje odv\u00e1\u017en\u00e1 p\u0159edpov\u011b\u010f: \u00da\u010din\u00edk a KVA budou v \u00e9\u0159e obnoviteln\u00fdch zdroj\u016f st\u00e1le d\u016fle\u017eit\u011bj\u0161\u00ed<\/h3><p>S n\u00e1r\u016fstem distribuovan\u00fdch zdroj\u016f energie, mikros\u00edt\u00ed a obousm\u011brn\u00fdch tok\u016f energie bude \u0159\u00edzen\u00ed KVA a PF slo\u017eit\u011bj\u0161\u00ed a z\u00e1sadn\u011bj\u0161\u00ed.<\/p><p>N\u00e1vrhy inteligentn\u00edch s\u00edt\u00ed a vyv\u00edjej\u00edc\u00ed se standardy mus\u00ed tyto v\u00fdzvy \u0159e\u0161it.M\u016fj instinkt mi \u0159\u00edk\u00e1, \u017ee ti, kte\u0159\u00ed dnes ignoruj\u00ed PF, budou v z\u00edt\u0159ej\u0161\u00edm energetick\u00e9m prost\u0159ed\u00ed zasko\u010deni.<\/p><h2 class=\"wp-block-heading\">Z\u00e1v\u011br<\/h2><p>Pochopen\u00ed rozd\u00edlu mezi KVA a KW je v\u00edc ne\u017e jen technick\u00fd \u017eargon - je to kl\u00ed\u010d k tomu, abyste se vyhnuli n\u00e1kladn\u00fdm chyb\u00e1m p\u0159i n\u00e1vrhu energetick\u00e9ho syst\u00e9mu. Na vlastn\u00ed k\u016f\u017ei jsem se p\u0159esv\u011bd\u010dil, \u017ee ignorov\u00e1n\u00ed \u00fa\u010din\u00edku vede k pl\u00fdtv\u00e1n\u00ed energi\u00ed a p\u0159ed\u010dasn\u00e9mu selh\u00e1n\u00ed za\u0159\u00edzen\u00ed. S rozvojem energetick\u00fdch syst\u00e9m\u016f d\u00edky obnoviteln\u00fdm zdroj\u016fm energie a inteligentn\u00edm s\u00edt\u00edm se tyto znalosti st\u00e1vaj\u00ed z\u00e1sadn\u00edmi. Nepodce\u0148ujte ho. Pe\u010dliv\u011b m\u011b\u0159te, zpochyb\u0148ujte p\u0159edpoklady a optimalizujte nastaven\u00ed. Zvl\u00e1dnut\u00ed pom\u011bru KVA vs. KW nen\u00ed jen p\u0159esnost - m\u011bn\u00ed pravidla hry pro efektivitu a odolnost.<\/p><h1 class=\"wp-block-heading\">\u010cASTO KLADEN\u00c9 DOTAZY<\/h1><h3 class=\"wp-block-heading\"><strong>Jak\u00fd je zjednodu\u0161en\u011b \u0159e\u010deno rozd\u00edl mezi KVA a KW?<\/strong><\/h3><p>KW je skute\u010dn\u00fd v\u00fdkon, kter\u00fd vykon\u00e1v\u00e1 pr\u00e1ci; KVA je celkov\u00fd v\u00fdkon v\u010detn\u011b nepracovn\u00edho jalov\u00e9ho v\u00fdkonu.<\/p><h3 class=\"wp-block-heading\"><strong>Jak ovliv\u0148uje \u00fa\u010din\u00edk m\u016fj \u00fa\u010det za elekt\u0159inu?<\/strong><\/h3><p>N\u00edzk\u00fd \u00fa\u010din\u00edk znamen\u00e1, \u017ee plat\u00edte za v\u00edce elekt\u0159iny, ne\u017e ve skute\u010dnosti spot\u0159ebujete, a nav\u00edc v\u00e1m hroz\u00ed sankce.<\/p><h3 class=\"wp-block-heading\"><strong>M\u016f\u017ee b\u00fdt KVA v\u011bt\u0161\u00ed ne\u017e KW? Pro\u010d?<\/strong><\/h3><p>Ano, proto\u017ee KVA zahrnuje jalov\u00fd v\u00fdkon, kter\u00fd nevykon\u00e1v\u00e1 u\u017eite\u010dnou pr\u00e1ci, ale je pot\u0159ebn\u00fd pro stabilitu soustavy.<\/p><h3 class=\"wp-block-heading\"><strong>Jak mohu zlep\u0161it \u00fa\u010din\u00edk ve sv\u00e9m za\u0159\u00edzen\u00ed?<\/strong><\/h3><p>Pou\u017eit\u00ed kondenz\u00e1torov\u00fdch bateri\u00ed, synchronn\u00edch kondenz\u00e1tor\u016f nebo inteligentn\u00edch st\u0159\u00edda\u010d\u016f k vyrovn\u00e1n\u00ed jalov\u00fdch z\u00e1t\u011b\u017e\u00ed.<\/p>","protected":false},"excerpt":{"rendered":"<p>\u00davod: Po cel\u00e1 desetilet\u00ed zp\u016fsoboval zmatek v pojmech KVA a KW n\u00e1kladn\u00e9 chyby p\u0159i navrhov\u00e1n\u00ed energetick\u00fdch syst\u00e9m\u016f - pochopen\u00ed tohoto rozd\u00edlu je v\u0161ak jednodu\u0161\u0161\u00ed, ne\u017e si mysl\u00edte. Str\u00e1vil jsem v\u00edce ne\u017e 25 let z\u00e1pasen\u00edm s nap\u00e1jec\u00edmi syst\u00e9my, od robustn\u00edch pr\u016fmyslov\u00fdch bateriov\u00fdch \u00falo\u017ei\u0161\u0165 a\u017e po nejmodern\u011bj\u0161\u00ed integrace obnoviteln\u00fdch zdroj\u016f energie, a byl jsem p\u0159\u00edm\u00fdm sv\u011bdkem toho, jak toto nedorozum\u011bn\u00ed m\u016f\u017ee zni\u010dit...<\/p>","protected":false},"author":1,"featured_media":4175,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"rank_math_lock_modified_date":false,"_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"footnotes":""},"categories":[19,26],"tags":[],"class_list":["post-4440","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news_catalog","category-product-news"],"_links":{"self":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts\/4440","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/comments?post=4440"}],"version-history":[{"count":1,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts\/4440\/revisions"}],"predecessor-version":[{"id":4441,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/posts\/4440\/revisions\/4441"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/media\/4175"}],"wp:attachment":[{"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/media?parent=4440"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/categories?post=4440"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kmdpower.com\/cs\/wp-json\/wp\/v2\/tags?post=4440"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}