{"id":3513,"date":"2018-02-21T12:00:26","date_gmt":"2018-02-21T10:00:26","guid":{"rendered":"http:\/\/www.esolar.ro\/blog\/?p=3513"},"modified":"2018-11-27T13:55:45","modified_gmt":"2018-11-27T11:55:45","slug":"cum-sa-alegeti-invertorul-de-curent-continuu-12-v-in-curent-alternativ-de-240-v-potrivit-pentru-panourile-fotovoltaice","status":"publish","type":"post","link":"https:\/\/www.esolar.ro\/blog\/cum-sa-alegeti-invertorul-de-curent-continuu-12-v-in-curent-alternativ-de-240-v-potrivit-pentru-panourile-fotovoltaice.html","title":{"rendered":"Cum s\u0103 alege\u0163i invertorul de curent continuu 12 V \u00een curent alternativ de 240 V potrivit pentru panourile fotovoltaice?"},"content":{"rendered":"<h1 style=\"text-align: justify;\">Ce este un invertor de curent?<\/h1>\n<p style=\"text-align: justify;\">Mai \u00eent\u00e2i de toate, s\u0103 \u00eencepem cu defini\u021bia. Ce este un invertor de curent?<\/p>\n<p style=\"text-align: justify;\">Un invertor de curent este un dispozitiv care transform\u0103 energia bateriei \u00een curentul din priz\u0103, adic\u0103 transform\u0103 curent continuu (CC) de 12V \u00een curent alternativ (AC) de 240V.<\/p>\n<p style=\"text-align: justify;\">AC de 240V este puterea furnizat\u0103 caselor noastre de companiile de utilit\u0103\u0163i, iar aceasta este energia necesar\u0103 majorit\u0103\u0163ii aparatelor de uz casnic normale, cum ar fi lumini, TV, frigider etc.<\/p>\n<p style=\"text-align: justify;\">Exist\u0103 2 tipuri principale de invertoare:<\/p>\n<ul>\n<li style=\"text-align: justify;\">\n<div id=\"attachment_3515\" style=\"width: 310px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.esolar.ro\/blog\/wp-content\/uploads\/2016\/03\/Invertor_on_grid.jpg\" rel=\"attachment wp-att-3515\"><img aria-describedby=\"caption-attachment-3515\" decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-3515\" src=\"https:\/\/www.esolar.ro\/blog\/wp-content\/uploads\/2016\/03\/Invertor_on_grid-300x300.jpg\" alt=\"Invertor on-grid pre\u021b\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.esolar.ro\/blog\/wp-content\/uploads\/2016\/03\/Invertor_on_grid-300x300.jpg 300w, https:\/\/www.esolar.ro\/blog\/wp-content\/uploads\/2016\/03\/Invertor_on_grid-150x150.jpg 150w, https:\/\/www.esolar.ro\/blog\/wp-content\/uploads\/2016\/03\/Invertor_on_grid.jpg 500w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-3515\" class=\"wp-caption-text\">Invertor on-grid<\/p><\/div>\n<p><strong>Off-grid,<\/strong> care lucreaz\u0103 ca un sistem independent \u0219i necesit\u0103 baterii (de obicei utilizate \u00een rulote, ma\u0219ini, b\u0103rci sau loca\u021bii f\u0103r\u0103 acces la re\u021beaua electric\u0103);<\/li>\n<li style=\"text-align: justify;\"><strong>On-grid sau invertoare legate la re\u0163ea<\/strong>, care <a href=\"https:\/\/www.esolar.ro\/invertoare-fotovoltaice-trifazate-fara-transformator-symo-3.0-3-m-fronius.html\" target=\"_blank\" rel=\"noopener\">necesit\u0103 alimentare prin re\u0163ea<\/a> pentru a func\u0163iona (de obicei folosite \u00een sisteme solare de uz casnic \u0219i care iau curent de intrare direct de la panourile solare).<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">\u00cen acest articol ne vom concentra numai pe invertoare off-grid &#8211; de exemplu, invertoare care pot fi folosite pentru a construi un sistem solar off-grid de 240 V.<\/p>\n<h2 style=\"text-align: justify;\">Care invertor de curent de 240 V s\u0103 \u00eel alegem?<\/h2>\n<p style=\"text-align: justify;\">Deci, ce invertor off-grid trebuie s\u0103 alege\u021bi pentru bateria\/bancul de baterii dintr-o caravan\u0103, rulot\u0103, barc\u0103 sau pentru un sistem solar independent off-grid?<\/p>\n<p style=\"text-align: justify;\">Pentru a r\u0103spunde la aceast\u0103 \u00eentrebare, va trebui s\u0103 lua\u0163i \u00een considerare trei puncte cheie:<\/p>\n<ul style=\"text-align: justify;\">\n<li><strong>Tipul invertorului: <\/strong><em> Und\u0103 sinusoidal\u0103 modificat\u0103\/<a href=\"https:\/\/www.esolar.ro\/invertor-off-grid-independent-cu-sinus-pur-studer-si-1248.html\" target=\"_blank\" rel=\"noopener\">und\u0103 sinusoidal\u0103 pur\u0103<\/a>;<\/em><\/li>\n<li><strong>Putere nominal\u0103<\/strong> (\u00een wa\u021bi) a invertorului;<\/li>\n<li><strong>Tensiune de intrare<\/strong> (\u00een mod special \u00een cazul unui sistem solar independent).<\/li>\n<\/ul>\n<h2 style=\"text-align: justify;\">Tipul invertorului: Und\u0103 sinusoidal\u0103 modificat\u0103 vs. und\u0103 sinusoidal\u0103 pur\u0103<\/h2>\n<div id=\"attachment_3516\" style=\"width: 310px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.esolar.ro\/blog\/wp-content\/uploads\/2016\/03\/Invertor_off_grid_sinus_pur.jpg\" rel=\"attachment wp-att-3516\"><img aria-describedby=\"caption-attachment-3516\" decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-3516\" src=\"https:\/\/www.esolar.ro\/blog\/wp-content\/uploads\/2016\/03\/Invertor_off_grid_sinus_pur-300x300.jpg\" alt=\"Invertor off-grid sinus pur pre\u021b\" width=\"300\" height=\"300\" srcset=\"https:\/\/www.esolar.ro\/blog\/wp-content\/uploads\/2016\/03\/Invertor_off_grid_sinus_pur-300x300.jpg 300w, https:\/\/www.esolar.ro\/blog\/wp-content\/uploads\/2016\/03\/Invertor_off_grid_sinus_pur-150x150.jpg 150w, https:\/\/www.esolar.ro\/blog\/wp-content\/uploads\/2016\/03\/Invertor_off_grid_sinus_pur.jpg 500w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><p id=\"caption-attachment-3516\" class=\"wp-caption-text\">Invertor off-grid sinus pur<\/p><\/div>\n<p style=\"text-align: justify;\">Decizia cu privire la tipul de invertor de curent de care ave\u021bi nevoie depinde de tipul curentului de ie\u015fire care v\u0103 este necesar. Invertoarele cu unde sinusoidale simple ofer\u0103 o ie\u0219ire care urmeaz\u0103 armonios o und\u0103 sinusoidal\u0103. Aceasta este similar\u0103 cu puterea de re\u0163ea furnizat\u0103 de compania de utilit\u0103\u0163i. Aceste invertoare comut\u0103 cu u\u015furin\u0163\u0103 polaritatea (&#8222;+&#8221; \u0219i &#8222;-&#8222;) \u00eentre cablurile de alimentare, reduc\u00e2nd sau cresc\u00e2nd treptat tensiunea, dup\u0103 caz (\u00een cazul \u00een v\u0103 \u00eentreba\u021bi de ce invertoarele trebuie s\u0103 comute polaritatea: aceasta este esen\u021ba curentului alternativ, modific\u0103rile de polaritate se \u00eent\u00e2mpla de aproximativ 50-60 de ori pe secund\u0103).<\/p>\n<p style=\"text-align: justify;\">\u00cen schimb, unda sinusoidal\u0103 modificat\u0103 este o simulare a ie\u0219irii undei sinusoidale simple, atunci c\u00e2nd invertorul scade sau cre\u0219te brusc tensiunea pentru a comuta polaritatea. Ca urmare, forma de ie\u0219ire se potrive\u0219te str\u00e2ns undei sinusoidale simple, dar \u00eenc\u0103 mai are distorsiuni mult mai mari.<\/p>\n<p style=\"text-align: justify;\">Dup\u0103 cum pute\u021bi vedea din acest exemplu, de\u0219i unda sinusoidal\u0103 modificat\u0103 \u0219i cea pur\u0103 produc acelea\u0219i niveluri de ie\u015fire, <a href=\"https:\/\/www.esolar.ro\/blog\/de-la-continuu-la-alternativ-cu-invertor-sisteme-fotovoltaice-12v-230v-cu-unda-sinus-pur.html\" target=\"_blank\" rel=\"noopener\">invertorul de und\u0103 sinusoidal\u0103 pur\u0103<\/a> produce o ie\u0219ire mult mai lin\u0103 \u0219i mai pu\u021bin neregulat\u0103.<\/p>\n<p style=\"text-align: justify;\">Bine, acest lucru pare mai mult a \u0219tiin\u021b\u0103, dar ce impact va avea alegerea dumneavoastr\u0103 a invertorului \u00een practic\u0103?<\/p>\n<ol style=\"text-align: justify;\">\n<li>Ie\u015firea undei sinusoidale modificate nu este potrivit\u0103 pentru anumite aparate, \u00een special pentru cele cu dispozitive capacitive \u0219i electromagnetice, cum ar fi: un frigider, cuptor cu microunde \u0219i cele mai multe tipuri de motoare. Aici sunt incluse \u015fi unele tipuri de imprimante, precum \u0219i luminile fluorescente capacitive etc<\/li>\n<\/ol>\n<ol style=\"text-align: justify;\" start=\"2\">\n<li>De obicei, invertoarele de unde sinusoidal\u0103 modificat\u0103 lucreaz\u0103 cu o eficien\u0163\u0103 mai sc\u0103zut\u0103 dec\u00e2t invertoarele de und\u0103 sinusoidal\u0103 pur\u0103.<\/li>\n<li>Invertoare de und\u0103 sinusoidal\u0103 modificat\u0103 sunt \u00een mod normal mult mai ieftine dec\u00e2t invertoare de und\u0103 sinusoidal\u0103 pur\u0103.<\/li>\n<\/ol>\n<p style=\"text-align: justify;\">Pentru a rezuma, de\u0219i invertoarele de und\u0103 sinusoidal\u0103 modificat\u0103 pot lucra bine cu multe aparate, inclusiv becuri, \u00eenc\u0103rc\u0103toare de telefoane mobile \u0219i echipamente de birou, dac\u0103 bugetul dumneavoastr\u0103 v\u0103 permite, noi am recomanda \u00eentotdeauna cump\u0103rarea unui invertor de und\u0103 sinusoidal\u0103 pur\u0103.<\/p>\n<h3 style=\"text-align: justify;\">Stabilirea puterii nominale a invertorului dumneavoastr\u0103<\/h3>\n<p style=\"text-align: justify;\">Dac\u0103 ave\u021bi nevoie s\u0103 alimenta\u0163i aparatele mici, cum ar fi un \u00eenc\u0103rc\u0103tor de telefon mobil sau becuri economice, nu trebuie s\u0103 cump\u0103ra\u0163i neap\u0103rat un invertor de 2000W putere, pentru c\u0103 va consuma semnificativ mai mul curent, chiar \u0219i \u00een modul stand-by, \u0219i va lucra foarte ineficient cu aparatele mici. Pe de alt\u0103 parte, dac\u0103 ve\u0163i conecta o ma\u0219in\u0103 de cafea la un invertor de 150W, ve\u0163i pu\u015fca rapid o siguran\u021b\u0103 (dac\u0103 nu chiar invertorul \u00een sine).<\/p>\n<p style=\"text-align: justify;\">Prin urmare, puterea nominal\u0103 a invertorului trebuie aleas\u0103 \u00een func\u0163ie de consumul de energie al sarcinii dumneavoastr\u0103. Tabelul de mai jos con\u021bine consumul tipic de energie a unor aparate de uz casnic standard \u0219i puterea recomandat\u0103 a invertorului.<\/p>\n<table width=\"729\">\n<thead>\n<tr>\n<td rowspan=\"2\"><strong>Aparatur\u0103<\/strong><\/td>\n<td rowspan=\"2\" width=\"30\"><strong>Consum curent<\/strong><\/td>\n<td colspan=\"8\"><strong>Puterea nominal\u0103 continu\u0103 a invertorului<\/strong><\/td>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>150W<\/strong><\/td>\n<td><strong>300W<\/strong><\/td>\n<td><strong>600W<\/strong><\/td>\n<td><strong>1000W<\/strong><\/td>\n<td><strong>1500W<\/strong><\/td>\n<td><strong>2000W<\/strong><\/td>\n<td><strong>3000W<\/strong><\/td>\n<td><strong>6000W<\/strong><\/td>\n<\/tr>\n<tr>\n<td><em>&#8211; Electrocasnice \u015fi aparate de buc\u0103t\u0103rie &#8211;<\/em><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<td><\/td>\n<\/tr>\n<tr>\n<td>Ventilator de mas\u0103*<\/td>\n<td>50W<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>\u00a0Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Ma\u015fin\u0103 de cusut*<\/td>\n<td>100W<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>Bec halogen**<\/td>\n<td>100W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Ventilator cu soclu*<\/td>\n<td>100W<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Blender*<\/td>\n<td>350W<\/td>\n<td>&#8211;<\/td>\n<td>\u00a0&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>Frigider mic*<\/td>\n<td>200W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Frigider mare*<\/td>\n<td>500W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Ma\u015fin\u0103 de sp\u0103lat (f\u0103r\u0103 \u00eenc\u0103lzire)*<\/td>\n<td>700W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Cuptor cu microunde**<\/td>\n<td>900W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Aparat de cafea*<\/td>\n<td>1200W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>\u00a0&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0C\u0103lc\u0103tor<\/td>\n<td>1500W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>\u00a0&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Usc\u0103tor de p\u0103r*<\/td>\n<td>1200W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>\u00a0&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Toaster<\/td>\n<td>1200W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Aspirator*<\/td>\n<td>2000W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>Ma\u015fin\u0103 de sp\u0103lat vase (uscare la cald)<\/td>\n<td>1500W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>Plit\u0103<\/td>\n<td>1500W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>Ma\u015fin\u0103 de sp\u0103lat (cu \u00eenc\u0103lzire)*<\/td>\n<td>2000W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Aer condi\u0163ionat*<\/td>\n<td>3000W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Cuptor electric<\/td>\n<td>5000W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td colspan=\"8\"><strong>Puterea nominal\u0103 continu\u0103 a invertorului<\/strong><\/td>\n<\/tr>\n<tr>\n<td><em>&#8211; Aparate audio \u015fi video &#8211;<\/em><\/td>\n<td><\/td>\n<td><strong>150W<\/strong><\/td>\n<td><strong>300W<\/strong><\/td>\n<td><strong>600W<\/strong><\/td>\n<td><strong>1000W<\/strong><\/td>\n<td><strong>1500W<\/strong><\/td>\n<td><strong>2000W<\/strong><\/td>\n<td><strong>3000W<\/strong><\/td>\n<td><strong>6000W<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u00a0TV LCD color de 12&#8221;<\/td>\n<td>20W<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Receptor TV prin satelit<\/td>\n<td>30W<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0HiFi stereo cu schimb\u0103tor CD**<\/td>\n<td>50W<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0DVD \/ Blu-ray player<\/td>\n<td>50W<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>TV LCD color de\u00a020&#8221;<\/td>\n<td>100W<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>TV LCD color de 42&#8221;<\/td>\n<td>200W<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Amplificator stereo de 100W**<\/td>\n<td>200W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Sistem Home theatre**<\/td>\n<td>500W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Boxe active 250W\u00a0RMS**<\/td>\n<td>500W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Boxe active 500W\u00a0RMS**<\/td>\n<td>1000W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td colspan=\"8\"><strong>Puterea nominal\u0103 continu\u0103 a invertorului<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u00a0\u00a0<em>&#8211; Calculatoare \u015fi home office &#8211;<\/em><\/td>\n<td><\/td>\n<td><strong>150W<\/strong><\/td>\n<td><strong>300W<\/strong><\/td>\n<td><strong>600W<\/strong><\/td>\n<td><strong>1000W<\/strong><\/td>\n<td><strong>1500W<\/strong><\/td>\n<td><strong>2000W<\/strong><\/td>\n<td><strong>3000W<\/strong><\/td>\n<td>\u00a0<strong>6000W<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u00a0\u00cenc\u0103rc\u0103tor telefon mobil<\/td>\n<td>5W<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Imprimant\u0103 inkjet mic\u0103<\/td>\n<td>40W<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Laptop<\/td>\n<td>50W<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>\u00a0Fax<\/td>\n<td>50W<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>Lamp\u0103 de birou<\/td>\n<td>50W<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>Calculator de birou cu monitor de 17&#8221;<\/td>\n<td>400W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>Imprimant\u0103 cu laser mare*<\/td>\n<td>800W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td><\/td>\n<td><\/td>\n<td colspan=\"8\"><strong>Puterea nominal\u0103 continu\u0103 a invertorului<\/strong><\/td>\n<\/tr>\n<tr>\n<td><em>&#8211; Scule electrice \u0219i alte echipamente &#8211;<\/em><\/td>\n<td><\/td>\n<td><strong>150W<\/strong><\/td>\n<td><strong>300W<\/strong><\/td>\n<td><strong>600W<\/strong><\/td>\n<td><strong>1000W<\/strong><\/td>\n<td><strong>1500W<\/strong><\/td>\n<td><strong>2000W<\/strong><\/td>\n<td><strong>3000W<\/strong><\/td>\n<td><strong>6000W<\/strong><\/td>\n<\/tr>\n<tr>\n<td>\u00a0Ma\u015fin\u0103 de g\u0103urit*<\/td>\n<td>800W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>\u00a0&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>Drujb\u0103 electric\u0103*<\/td>\n<td>1000W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>\u00a0&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>Ma\u015fin\u0103 de tuns iarba electric\u0103*<\/td>\n<td>1000W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>Sp\u0103l\u0103tor sub presiune*<\/td>\n<td>1000W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>Polizor*<\/td>\n<td>2000W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<tr>\n<td>Compresor de aer*<\/td>\n<td>2000W<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>&#8211;<\/td>\n<td>Ok<\/td>\n<td>Ok<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p style=\"text-align: justify;\"><strong>\u00a0<\/strong>*Aparatele marcate cu o stea sunt susceptibile de a avea consumul de curent de \u00eenceput de c\u00e2teva ori mai mare dec\u00e2t puterea lor de lucru normal\u0103 (de obicei, acest lucru este cauzat de motoarele electrice). Acest lucru ar trebui s\u0103 fie luat \u00een considerare atunci c\u00e2nd se alege m\u0103rimea potrivit\u0103 a invertorului. De exemplu, chiar dac\u0103 cositoarele electrice au o putere de lucru normal\u0103 de 1000W, puterea lor de pornire este mai mare dec\u00e2t 4000W, astfel \u00eenc\u00e2t invertoarele cu putere continu\u0103 de 2000W nu sunt potrivite, deoarece puterea lor de v\u00e2rf este limitat\u0103 la 4000W. S\u0103 lua\u0163i \u00eentotdeauna \u00een considerare cerin\u021bele puterii de pornire a echipamentelor dumneavoastr\u0103, mai ales la dispozitivele cu motoare electrice, atunci c\u00e2nd alege\u0163i invertorul potrivit.<\/p>\n<p style=\"text-align: justify;\">** Aceste aparate nu au un motor electric \u00een interior, dar \u00eenc\u0103 mai au un consum de energie variabil cu scurte supratensiuni. Prin urmare, au nevoie de un invertor mai mare dec\u00e2t ar fi necesar pentru alte aparate cu putere nominal\u0103 similar\u0103.<\/p>\n<p style=\"text-align: justify;\">V\u0103 rug\u0103m s\u0103 re\u021bine\u021bi \u015fi c\u0103 acest tabel este prev\u0103zut numai pentru o orientare general\u0103. Consumul real de energie al aparatelor dumneavoastr\u0103, precum \u0219i cerin\u021bele curentului de pornire, pot varia considerabil. \u00cen orice caz, trebuie s\u0103 verifica\u0163i specifica\u0163iile echipamentelor dumneavoastr\u0103 pentru cerin\u021bele curentului continuu \u015fi curentului de pornire.<\/p>\n<p style=\"text-align: justify;\">Dac\u0103 se conecteaz\u0103 mai mult dec\u00e2t un aparat la invertor, consumul total de energie ar trebui s\u0103 fie o sum\u0103 a tuturor aparatelor utilizate. Acest lucru va determina puterea total\u0103 necesar\u0103 a invertorului.<\/p>\n<p><iframe loading=\"lazy\" src=\"https:\/\/www.youtube.com\/embed\/iPeC39JXvJ4\" width=\"560\" height=\"315\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<h3 style=\"text-align: justify;\">Stabilirea tensiunii de intrare a invertorului dumneavoastr\u0103: 12V sau 24V<\/h3>\n<div id=\"attachment_3517\" style=\"width: 275px\" class=\"wp-caption alignright\"><a href=\"https:\/\/www.esolar.ro\/blog\/wp-content\/uploads\/2016\/03\/Invertor_24v_sinus_pur.jpg\" rel=\"attachment wp-att-3517\"><img aria-describedby=\"caption-attachment-3517\" decoding=\"async\" loading=\"lazy\" class=\"size-medium wp-image-3517\" src=\"https:\/\/www.esolar.ro\/blog\/wp-content\/uploads\/2016\/03\/Invertor_24v_sinus_pur-265x300.jpg\" alt=\"Invertor 24V sinus pur pre\u021b\" width=\"265\" height=\"300\" srcset=\"https:\/\/www.esolar.ro\/blog\/wp-content\/uploads\/2016\/03\/Invertor_24v_sinus_pur-265x300.jpg 265w, https:\/\/www.esolar.ro\/blog\/wp-content\/uploads\/2016\/03\/Invertor_24v_sinus_pur.jpg 441w\" sizes=\"(max-width: 265px) 100vw, 265px\" \/><\/a><p id=\"caption-attachment-3517\" class=\"wp-caption-text\">Invertor 24V sinus pur<\/p><\/div>\n<p style=\"text-align: justify;\">Dac\u0103 sunte\u021bi \u00een c\u0103utarea unui invertor pentru bateria dumneavoastr\u0103 de 12 V dintr-o rulot\u0103, caravan\u0103 sau barc\u0103, nu exist\u0103 prea multe op\u0163iuni \u00een ceea ce prive\u0219te tensiunea de intrare &#8211; ve\u021bi avea nevoie de un invertor de 12V \u00een 240V, deoarece bateria este de 12V.<\/p>\n<p style=\"text-align: justify;\">Cu toate acestea, dac\u0103 construi\u0163i un sistem solar independent off-grid (de exemplu, \u00eentr-o cas\u0103, gr\u0103din\u0103, magazie sau ferm\u0103), atunci pute\u021bi alege tensiunea bancului dumneavoastr\u0103 de baterii \u0219i tensiunea de intrare a unui invertor \u00een mod corespunz\u0103tor.<\/p>\n<p style=\"text-align: justify;\">\u00cen locul unui banc de baterii de 12V pute\u021bi alege s\u0103 construi\u0163i un banc de baterii de 24V (bateriile de 2x12V legate \u00een serie vor produce 24V). \u00cen acest caz, pute\u0163i folosi un invertor de 24V CC la 240V AC, mai degrab\u0103 dec\u00e2t unul de 12V CC la 240V AC. Acest montaj v\u0103 va oferi unele beneficii importante:<\/p>\n<ul style=\"text-align: justify;\">\n<li>Curentul de intrare pentru invertor va fi de 2 ori mai mic pentru 24V dec\u00e2t pentru 12V, f\u0103c\u00e2nd invertorul \u0219i \u00eentregul sistem mai sigur \u0219i mai fiabil.<\/li>\n<li>Cablurile dintre bateria \u0219i invertorul dumneavoastr\u0103 nu trebuie s\u0103 fie la fel de groase ca cele utilizate pentru o banc de baterii \u015fi invertor de 12V.<\/li>\n<\/ul>\n<p style=\"text-align: justify;\">Acest lucru este deosebit de important pentru sisteme solare de sine st\u0103t\u0103toare mari cu invertoare de 2000W, iar pentru astfel de niveluri de putere recomandarea noastr\u0103 este s\u0103 opta\u0163i pentru un banc de baterii de 24V \u0219i un <a href=\"https:\/\/www.esolar.ro\/invertor-pentru-celule-solare-victron-24v-5000w.html\" target=\"_blank\" rel=\"noopener\">invertor cu tensiune de intrare de 24V<\/a>.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Ce este un invertor de curent? Mai \u00eent\u00e2i de toate, s\u0103 \u00eencepem cu defini\u021bia. Ce este un invertor de curent? Un invertor de curent este un dispozitiv care transform\u0103 energia bateriei \u00een curentul din priz\u0103, adic\u0103 transform\u0103 curent continuu (CC) de 12V \u00een curent alternativ (AC) de 240V. AC de 240V este puterea furnizat\u0103 caselor<\/p>\n<div class=\"read-more\"><a href=\"https:\/\/www.esolar.ro\/blog\/cum-sa-alegeti-invertorul-de-curent-continuu-12-v-in-curent-alternativ-de-240-v-potrivit-pentru-panourile-fotovoltaice.html\" title=\"Read More\">Read More<\/a><\/div>\n","protected":false},"author":8,"featured_media":3518,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[29,10],"tags":[343,1693,1694,1148,800,1020],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.esolar.ro\/blog\/wp-json\/wp\/v2\/posts\/3513"}],"collection":[{"href":"https:\/\/www.esolar.ro\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.esolar.ro\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.esolar.ro\/blog\/wp-json\/wp\/v2\/users\/8"}],"replies":[{"embeddable":true,"href":"https:\/\/www.esolar.ro\/blog\/wp-json\/wp\/v2\/comments?post=3513"}],"version-history":[{"count":2,"href":"https:\/\/www.esolar.ro\/blog\/wp-json\/wp\/v2\/posts\/3513\/revisions"}],"predecessor-version":[{"id":3606,"href":"https:\/\/www.esolar.ro\/blog\/wp-json\/wp\/v2\/posts\/3513\/revisions\/3606"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.esolar.ro\/blog\/wp-json\/wp\/v2\/media\/3518"}],"wp:attachment":[{"href":"https:\/\/www.esolar.ro\/blog\/wp-json\/wp\/v2\/media?parent=3513"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.esolar.ro\/blog\/wp-json\/wp\/v2\/categories?post=3513"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.esolar.ro\/blog\/wp-json\/wp\/v2\/tags?post=3513"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}