{"id":1653,"date":"2025-05-15T04:08:26","date_gmt":"2025-05-15T04:08:26","guid":{"rendered":"https:\/\/www.dioda.ro\/blog\/?p=1653"},"modified":"2025-05-15T11:06:05","modified_gmt":"2025-05-15T11:06:05","slug":"releul-de-monitorizare-si-control-pentru-protectie-la-supra-si-subtensiune-hrn-31-caracteristici-functionare-instalare-si-configurare","status":"publish","type":"post","link":"https:\/\/www.dioda.ro\/blog\/instalatii-electrice\/releul-de-monitorizare-si-control-pentru-protectie-la-supra-si-subtensiune-hrn-31-caracteristici-functionare-instalare-si-configurare\/","title":{"rendered":"Releul de monitorizare \u0219i control pentru protectie la Supra si Subtensiune HRN-31: Caracteristici, func\u021bionare, instalare \u0219i configurare"},"content":{"rendered":"\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image.png\"><img loading=\"lazy\" decoding=\"async\" width=\"600\" height=\"472\" src=\"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image.png\" alt=\"\" class=\"wp-image-1654\" srcset=\"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image.png 600w, https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-300x236.png 300w\" sizes=\"auto, (max-width: 600px) 100vw, 600px\" \/><\/a><\/figure>\n\n\n\n<p>Releul de monitorizare \u0219i control <a href=\"https:\/\/www.dioda.ro\/hrn-31-002471450\/pid\/73434.html\">HRN-31<\/a> este un dispozitiv esen\u021bial pentru protec\u021bia instala\u021biilor electrice, fiind proiectat s\u0103 monitorizeze \u0219i s\u0103 controleze tensiunea \u00een circuite monofazate. Acesta previne deteriorarea echipamentelor electrice cauzat\u0103 de varia\u021biile de tensiune, asigur\u00e2nd astfel siguran\u021ba \u0219i eficien\u021ba sistemului electric.<\/p>\n\n\n\n<h2>Caracteristici tehnice principale<\/h2>\n<p class=\"first:mt-1.5\"><a href=\"https:\/\/www.dioda.ro\/hrn-31-002471450\/pid\/73434.html\">HRN-31<\/a> este un releu de monitorizare a tensiunii, capabil s\u0103 func\u021bioneze at\u00e2t pe curent alternativ (AC), c\u00e2t \u0219i pe curent continuu (DC), \u00een intervalul de 48-276 V. Printre cele mai importante caracteristici se num\u0103r\u0103:<\/p>\n<ul class=\"list-disc\">\n<li class=\"ml-4\">Monitorizeaz\u0103 at\u00e2t supratensiunea (Umax), c\u00e2t \u0219i subtensiunea (Umin), cu praguri reglabile.<\/li>\n<li class=\"ml-4\">Permite ajustarea fin\u0103 a nivelurilor de tensiune monitorizate, Umin fiind setat procentual fa\u021b\u0103 de Umax.<\/li>\n<li class=\"ml-4\">Ofer\u0103 o \u00eent\u00e2rziere reglabil\u0103 la reac\u021bionare, pentru a evita decupl\u0103rile la fluctua\u021bii scurte de tensiune.<\/li>\n<li class=\"ml-4\">Are func\u021bie de memorare a st\u0103rii de defect (Latch), cu posibilitate de resetare extern\u0103.<\/li>\n<li class=\"ml-4\">M\u0103soar\u0103 valoarea efectiv\u0103 real\u0103 a tensiunii (TRUE RMS), ceea ce \u00eel face potrivit \u0219i pentru surse cu forme de und\u0103 distorsionate.<\/li>\n<li class=\"ml-4\">Ie\u0219ire cu un contact comutator (CO) de 16A, potrivit pentru comanda unui contactor sau a altor echipamente de putere.<\/li>\n<li class=\"ml-4\">Carcas\u0103 compact\u0103, de 1 modul, pentru montaj pe \u0219in\u0103 DIN \u00een tablouri electrice.<\/li>\n<li class=\"ml-4\">Alimentarea se face direct din tensiunea monitorizat\u0103, f\u0103r\u0103 surs\u0103 suplimentar\u0103 de alimentare.<\/li>\n<\/ul>\n\n\n\n<h2>Func\u021bionare<\/h2>\n<p class=\"first:mt-1.5\">Releul <a href=\"https:\/\/www.dioda.ro\/hrn-31-002471450\/pid\/73434.html\">HRN-31<\/a> monitorizeaz\u0103 permanent tensiunea de alimentare a circuitului protejat. Dac\u0103 tensiunea dep\u0103\u0219e\u0219te limita superioar\u0103 (Umax) sau scade sub limita inferioar\u0103 (Umin), releul ac\u021bioneaz\u0103 contactul de ie\u0219ire, deconect\u00e2nd alimentarea c\u0103tre consumatori sau comand\u00e2nd un contactor. Astfel, echipamentele sensibile sunt protejate \u00eempotriva avariilor cauzate de supratensiuni sau subtensiuni.<\/p>\n<p class=\"first:mt-1.5\">Func\u021bia de \u00eent\u00e2rziere la reac\u021bionare permite ignorarea fluctua\u021biilor scurte, evit\u00e2nd decupl\u0103rile inutile. De asemenea, func\u021bia de memorare a defectului (Latch) asigur\u0103 men\u021binerea st\u0103rii de alarm\u0103 p\u00e2n\u0103 la resetarea manual\u0103 sau extern\u0103, ceea ce este util pentru diagnosticarea problemelor.<\/p>\n<p>\u00a0<\/p>\n<p>Avertizare! Dispozitivul este proiectat pentru conectare la re\u0163ea monofazat\u0103 sau la circuit de curent continuu (\u00een func\u0163ie de tip trebuie respectate domeniile de tensiune) \u0219i trebuie instalat \u00een conformitate cu reglement\u0103rile \u0219i standardele \u00een vigoare . Instalarea, conectarea, setarea \u0219i operarea pot fi efectuate numai de c\u0103tre o persoan\u0103 cu califi care electrotehnic\u0103 corespunz\u0103toare, care este familiarizat\u0103 cu instruc\u0163iunile \u0219i cu func\u0163ionarea dispozitivului Dispozitivul este prev\u0103zut cu protec\u0163ie \u00eempotriva v\u00e2rfurilor de supratensiune \u0219i a \u00eentreruperilor din re\u0163eaua de alimentare. Pentru asigurarea acestor func\u0163ii de protec\u0163ie trebuie s\u0103 fi e prezente \u00een instala\u0163ie mijloace de protec\u0163ie compatibile de nivel \u00eenalt (A, B, C) \u0219i conform normelor asigurat\u0103 protec\u0163ia contra perturba\u0163iilor ce pot fi datorate de dispozitivele conectate (contactoare, motoare, sarcini inductive). \u00cenainte de montarea dispozitivului v\u0103 asigura\u0163i c\u0103 instala\u0163ia nu este sub tensiune \u0219i \u00eentrerup\u0103torul principal este \u00een pozi\u0163ia \u201eDECONECTAT\u201d. Nu instala\u0163i dispozitivul la instala\u0163ii cu perturb\u0103ri electromagnetice mari. La instalarea corect\u0103 a dispozitivului asigura\u0163i o circula\u0163ie ideal\u0103 a aerului astfel \u00eenc\u00e2t, la o func\u0163ionare \u00eendelungat\u0103 \u0219i o temperatur\u0103 a mediului ambiant mai ridicat\u0103 s\u0103 nu se dep\u0103\u0219easc\u0103 temperatura maxim\u0103 de lucru a dispoztivului. Pentru instalare folosi\u0163i \u0219urubelni\u0163a de 2 mm. Ave\u0163i \u00een vedere c\u0103 este vorba de un dispozitiv electronic \u0219i la montarea acestuia proceda\u0163i ca atare. Func\u0163ionarea f\u0103r\u0103 probleme a dispozitivului depinde \u0219i de modul \u00een care afost transportat, depozitat. Dac\u0103 descoperi\u0163i existen\u0163a unei deterior\u0103ri, deform\u0103ri, nefunc\u0163ionarea sau lipsa unor p\u0103r\u0163i componente, nu instala\u0163i acest dispozitiv \u0219i reclama\u0163i-l la v\u00e2nz\u0103tor. Dispotitivul poate fi demontat dup\u0103 expirarea perioadei de exploatare, reciclat \u0219i dup\u0103 caz depozitat \u00een siguran\u0163\u0103.<\/p>\n\n\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-1.png\"><img loading=\"lazy\" decoding=\"async\" width=\"439\" height=\"567\" src=\"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-1.png\" alt=\"\" class=\"wp-image-1655\" srcset=\"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-1.png 439w, https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-1-232x300.png 232w\" sizes=\"auto, (max-width: 439px) 100vw, 439px\" \/><\/a><\/figure>\n\n\n\n<p>1. Borna intr\u0103rii de control (R)<br \/>2. Indicarea tensiunii de alimentare\/ monitorizate<br \/>3. Setarea func\u021biei<br \/>4. Setarea nivelului inferior (Umin)<br \/>5. Bornele tensiunii de alimentare\/ monitorizate (A1-A2)<br \/>6. Indicarea st\u0103rilor de func\u021bionare<br \/>7. Setarea nivelului superior (Umax)<br \/>8. Setarea timpului de \u00eent\u00e2rziere<br \/>9. Contact de ie\u0219ire 2 (25-26-28), doar HRN-3x\/2<br \/>10. Contact de ie\u0219ire 1 (15-16-18)<\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-2.png\"><img loading=\"lazy\" decoding=\"async\" width=\"498\" height=\"301\" src=\"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-2.png\" alt=\"\" class=\"wp-image-1656\" srcset=\"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-2.png 498w, https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-2-300x181.png 300w\" sizes=\"auto, (max-width: 498px) 100vw, 498px\" \/><\/a><\/figure>\n\n\n\n<h2>Instalare<\/h2>\n<p class=\"first:mt-1.5\">Instalarea <a href=\"https:\/\/www.dioda.ro\/hrn-31-002471450\/pid\/73434.html\">HRN-31<\/a> se face u\u0219or, pe \u0219in\u0103 DIN, \u00een tabloul electric general. Schema de conectare presupune interpunerea releului \u00eentre sursa de alimentare \u0219i circuitul protejat. Pentru sarcini mari sau pentru protec\u021bia mai multor circuite, se recomand\u0103 utilizarea unui contactor modular comandat de releu.<\/p>\n<p class=\"first:mt-1.5\">Pa\u0219ii de baz\u0103 pentru instalare sunt:<\/p>\n<ol class=\"list-decimal\">\n<li class=\"ml-4\">Monta\u021bi releul pe \u0219ina DIN \u00een tabloul electric.<\/li>\n<li class=\"ml-4\">Conecta\u021bi bornele de alimentare la faz\u0103 \u0219i nul (L, N) sau la sursa DC, respect\u00e2nd polaritatea.<\/li>\n<li class=\"ml-4\">Conecta\u021bi ie\u0219irea releului la circuitul de comand\u0103 al contactorului sau direct la sarcina de protejat, \u00een func\u021bie de aplica\u021bie.<\/li>\n<li class=\"ml-4\">Asigura\u021bi-v\u0103 c\u0103 tensiunea de alimentare se \u00eencadreaz\u0103 \u00een intervalul 48-276 V AC\/DC.<\/li>\n<\/ol>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-4.png\"><img loading=\"lazy\" decoding=\"async\" width=\"442\" height=\"162\" src=\"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-4.png\" alt=\"\" class=\"wp-image-1658\" srcset=\"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-4.png 442w, https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-4-300x110.png 300w\" sizes=\"auto, (max-width: 442px) 100vw, 442px\" \/><\/a><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-5.png\"><img loading=\"lazy\" decoding=\"async\" width=\"550\" height=\"766\" src=\"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-5.png\" alt=\"\" class=\"wp-image-1660\" srcset=\"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-5.png 550w, https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image-5-215x300.png 215w\" sizes=\"auto, (max-width: 550px) 100vw, 550px\" \/><\/a><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>Releul de monitorizare \u0219i control HRN-31 este un dispozitiv esen\u021bial pentru protec\u021bia instala\u021biilor electrice, fiind proiectat s\u0103 monitorizeze \u0219i s\u0103 controleze tensiunea \u00een circuite monofazate. Acesta previne deteriorarea echipamentelor electrice cauzat\u0103 de varia\u021biile de tensiune, asigur\u00e2nd astfel siguran\u021ba \u0219i eficien\u021ba sistemului electric. Caracteristici tehnice principale HRN-31 este un releu de monitorizare a tensiunii, capabil s\u0103 &#8230; <a title=\"Releul de monitorizare \u0219i control pentru protectie la Supra si Subtensiune HRN-31: Caracteristici, func\u021bionare, instalare \u0219i configurare\" class=\"read-more\" href=\"https:\/\/www.dioda.ro\/blog\/instalatii-electrice\/releul-de-monitorizare-si-control-pentru-protectie-la-supra-si-subtensiune-hrn-31-caracteristici-functionare-instalare-si-configurare\/\" aria-label=\"Read more about Releul de monitorizare \u0219i control pentru protectie la Supra si Subtensiune HRN-31: Caracteristici, func\u021bionare, instalare \u0219i configurare\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":1654,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[88],"tags":[93,92,91],"class_list":["post-1653","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-instalatii-electrice","tag-protectie","tag-subtensiune","tag-supratensiune"],"jetpack_publicize_connections":[],"jetpack_featured_media_url":"https:\/\/www.dioda.ro\/blog\/wp-content\/uploads\/2025\/05\/image.png","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p8WdYv-qF","jetpack_likes_enabled":true,"_links":{"self":[{"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/posts\/1653","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/comments?post=1653"}],"version-history":[{"count":2,"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/posts\/1653\/revisions"}],"predecessor-version":[{"id":1661,"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/posts\/1653\/revisions\/1661"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/media\/1654"}],"wp:attachment":[{"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/media?parent=1653"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/categories?post=1653"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.dioda.ro\/blog\/wp-json\/wp\/v2\/tags?post=1653"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}