{"id":2231,"date":"2025-10-31T09:43:00","date_gmt":"2025-10-31T01:43:00","guid":{"rendered":"https:\/\/www.britecelectric.com\/?post_type=blog&p=2231"},"modified":"2025-11-03T16:21:24","modified_gmt":"2025-11-03T08:21:24","slug":"types-of-industrial-surge-protection-devices-and-graded-protection-strategies","status":"publish","type":"blog","link":"https:\/\/www.britecelectric.com\/hu\/blog\/types-of-industrial-surge-protection-devices-and-graded-protection-strategies\/","title":{"rendered":"Az ipari t\u00falfesz\u00fclts\u00e9g-v\u00e9delmi eszk\u00f6z\u00f6k t\u00edpusai \u00e9s fokozatos v\u00e9delmi strat\u00e9gi\u00e1k"},"content":{"rendered":"
Ez a cikk szisztematikusan bemutatja a t\u00edpusokat, az oszt\u00e1lyoz\u00e1si m\u00f3dszereket \u00e9s a hat\u00e9kony oszt\u00e1lyozott v\u00e9delmi rendszer fel\u00e9p\u00edt\u00e9s\u00e9t ipari t\u00falfesz\u00fclts\u00e9gv\u00e9d\u0151k (SPD)<\/strong><\/a>.<\/div>\r\n \r\n

Oszt\u00e1lyoz\u00e1s m\u0171szaki elv \u00e9s kis\u00fcl\u00e9si kapacit\u00e1s szerint<\/h2>\r\n
Ez az SPD alapvet\u0151 oszt\u00e1lyoz\u00e1si m\u00f3dszere, amely k\u00f6zvetlen\u00fcl meghat\u00e1rozza az alkalmaz\u00e1si forgat\u00f3k\u00f6nyveket \u00e9s a v\u00e9delmi szinteket, \u00e9s \u00e1ltal\u00e1ban olyan nemzetk\u00f6zi szabv\u00e1nyokon alapul, mint az IEC 61643.<\/div>\r\n\"BR-25M<\/a>\r\n

1. t\u00edpus (1. t\u00edpus\/T1): Energiakis\u00fcl\u00e9s<\/h3>\r\n
Technikai alapelv: <\/strong>1-es t\u00edpus\u00fa t\u00falfesz\u00fclts\u00e9g-v\u00e9delmi k\u00e9sz\u00fcl\u00e9kek<\/a> jellemz\u0151en szikrak\u00f6zt haszn\u00e1l k\u00f6zponti elemk\u00e9nt. F\u0151 jellemz\u0151je a nagy l\u00f6k\u00e9s\u00e1ram kis\u00fcl\u00e9si k\u00e9pess\u00e9ge.<\/div>\r\n
Kis\u00fct\u00e9si k\u00e9pess\u00e9g: <\/strong>K\u00e9pes ellen\u00e1llni a k\u00f6zvetlen vill\u00e1mcsap\u00e1soknak vagy r\u00e9szleges vill\u00e1m\u00e1ramnak \u00e9s kibocs\u00e1tani azokat (10\/350 \u00b5s-os hull\u00e1mform\u00e1t szimul\u00e1lva); a teszt\u00e1ramok jellemz\u0151en el\u00e9rhetik a t\u00edz kiloampert.<\/div>\r\n
Alkalmaz\u00e1si forgat\u00f3k\u00f6nyvek: <\/strong>Primarily installed at the entrance of the building's main distribution cabinet (MDB) as a primary protection device to release lightning current from external lines (e.g., power lines).<\/div>\r\n \r\n\r\n\"BR-20<\/a>\r\n

2. t\u00edpus (Type 2\/T2): Fesz\u00fclts\u00e9ghat\u00e1rol\u00f3<\/h3>\r\n
M\u0171szaki elv: A k\u00f6zponti elem egy varisztor (MOV). Norm\u00e1l fesz\u00fclts\u00e9g mellett a MOV nagy ellen\u00e1ll\u00e1st mutat; ha t\u00falfesz\u00fclts\u00e9g l\u00e9p fel, ellen\u00e1ll\u00e1sa meredeken cs\u00f6kken, megker\u00fclve az \u00e1ramot \u00e9s biztons\u00e1gos szintre szor\u00edtva a fesz\u00fclts\u00e9get.<\/div>\r\n
Kis\u00fct\u00e9si kapacit\u00e1s: 2-es t\u00edpus\u00fa t\u00falfesz\u00fclts\u00e9g-v\u00e9delmi k\u00e9sz\u00fcl\u00e9kek<\/a> Induk\u00e1lt vill\u00e1mcsap\u00e1sok \u00e9s \u00fczemi t\u00falfesz\u00fclts\u00e9gek kis\u00fct\u00e9s\u00e9re szolg\u00e1l (8\/20\u00b5s hull\u00e1mform\u00e1t szimul\u00e1lva), a kis\u00fcl\u00e9si kapacit\u00e1s jellemz\u0151en t\u00f6bb ezer \u00e9s t\u00f6bb t\u00edzezer amper k\u00f6z\u00f6tt van.<\/div>\r\n
Alkalmaz\u00e1si forgat\u00f3k\u00f6nyvek: A f\u0151 eloszt\u00f3szekr\u00e9ny ut\u00e1n az eloszt\u00f3szekr\u00e9nybe (eloszt\u00f3panel, SDB) vagy a fontos berendez\u00e9sek kapcsol\u00f3szekr\u00e9nye el\u00e9 telep\u00edtve, m\u00e1sodlagos v\u00e9delemk\u00e9nt szolg\u00e1lva a legt\u00f6bb elektromos berendez\u00e9s v\u00e9delm\u00e9re.<\/div>\r\n\"BR-230<\/a>\r\n

3. t\u00edpus (Type 3\/T3): Speci\u00e1lis v\u00e9delem<\/h3>\r\n
M\u0171szaki elv: \u00c1ltal\u00e1ban finomabb MOV-okat, g\u00e1zkis\u00fcl\u00e9si cs\u00f6veket vagy TVS-di\u00f3d\u00e1kat alkalmaz, ami rendk\u00edv\u00fcl gyors reakci\u00f3t \u00e9s alacsonyabb marad\u00e9kfesz\u00fclts\u00e9get (v\u00e9delmi szint) eredm\u00e9nyez.<\/div>\r\n
Kis\u00fcl\u00e9si kapacit\u00e1s: A kis\u00fcl\u00e9si kapacit\u00e1s viszonylag kicsi, els\u0151sorban a marad\u00e9k t\u00falfesz\u00fclts\u00e9g tov\u00e1bbi elnyom\u00e1s\u00e1ra szolg\u00e1l.<\/div>\r\n
Alkalmaz\u00e1si forgat\u00f3k\u00f6nyvek: 3-as t\u00edpus\u00fa t\u00falfesz\u00fclts\u00e9g-v\u00e9delmi k\u00e9sz\u00fcl\u00e9kek<\/a> installed very close to the protected equipment, such as in the equipment's socket or socket board, for fine protection. It usually needs to be used in conjunction with a Type 2 SPD and cannot be installed alone.<\/div>\r\n \r\n\r\n\"BR-12.5M<\/a>\r\n

Kombin\u00e1lt Spd (1+2. t\u00edpus): Integr\u00e1lt megold\u00e1s<\/h3>\r\n
M\u0171szaki elv: Ez a k\u00e9sz\u00fcl\u00e9k egy 1-es t\u00edpus\u00fa szikrak\u00f6zt \u00e9s egy 2-es t\u00edpus\u00fa varisztort tartalmaz, amelyek a nagy kis\u00fct\u00e9si k\u00e9pess\u00e9g \u00e9s az alacsony v\u00e9delmi szint el\u0151nyeit k\u00edn\u00e1lj\u00e1k.<\/div>\r\n
Alkalmaz\u00e1si forgat\u00f3k\u00f6nyvek: Kombin\u00e1lt SPD (Type 1+2) t\u00falfesz\u00fclts\u00e9g-v\u00e9delmi k\u00e9sz\u00fcl\u00e9kek<\/a> korl\u00e1tozott helyig\u00e9ny\u0171 vagy egyszer\u0171s\u00edtett kialak\u00edt\u00e1st ig\u00e9nyl\u0151 alkalmaz\u00e1sokhoz alkalmas. K\u00f6zvetlen\u00fcl az \u00e9p\u00fclet bej\u00e1rat\u00e1n\u00e1l l\u00e9v\u0151 f\u0151eloszt\u00f3 szekr\u00e9nybe szerelhet\u0151, kombin\u00e1lt els\u0151 \u00e9s m\u00e1sodik szint\u0171 v\u00e9delmet biztos\u00edtva.<\/div>\r\n \r\n

Az ipari t\u00falfesz\u00fclts\u00e9g-v\u00e9delmi eszk\u00f6z\u00f6k kiterjesztett oszt\u00e1lyoz\u00e1sa<\/h2>\r\n
Az ipari SPD-k az alaptechnol\u00f3giai t\u00edpusokon k\u00edv\u00fcl m\u00e1s m\u00e9retek szerint is besorolhat\u00f3k.<\/div>\r\n

Oszt\u00e1lyoz\u00e1s \u00e1ramforr\u00e1s t\u00edpusa szerint<\/h3>\r\n
V\u00e1ltakoz\u00f3 \u00e1ram\u00fa t\u00e1pegys\u00e9g SPD: AC t\u00e1pell\u00e1t\u00e1si rendszerek, p\u00e9ld\u00e1ul 380V\/220V ipari \u00e1ramh\u00e1l\u00f3zatok v\u00e9delm\u00e9re szolg\u00e1l.<\/div>\r\n
Egyen\u00e1ram\u00fa t\u00e1pegys\u00e9g SPD: Egyen\u00e1ram\u00fa t\u00e1pell\u00e1t\u00e1si rendszerek, p\u00e9ld\u00e1ul fotovoltaikus energiatermel\u0151 rendszerek, egyen\u00e1ram\u00fa motorhajt\u00e1sok \u00e9s kommunik\u00e1ci\u00f3s b\u00e1zis\u00e1llom\u00e1sok t\u00e1pegys\u00e9geinek v\u00e9delm\u00e9re szolg\u00e1l.<\/div>\r\n \r\n

AC Power SPD VS Dc Power SPD<\/h4>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Funkci\u00f3<\/th>\r\nAC Power SPD<\/th>\r\nDC Power SPD<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
Els\u0151dleges alkalmaz\u00e1s<\/strong><\/td>\r\nF\u0151 elektromos panelek, alpanelek, el\u00e1gaz\u00f3 \u00e1ramk\u00f6r\u00f6k otthonokban, irod\u00e1kban \u00e9s ipari l\u00e9tes\u00edtm\u00e9nyekben.<\/td>\r\nNapelemes napelemes rendszerek, akkumul\u00e1tort\u00e1rol\u00f3 rendszerek, elektromos j\u00e1rm\u0171vek t\u00f6lt\u0151\u00e1llom\u00e1sai, t\u00e1vk\u00f6zl\u00e9s, aut\u00f3ipar, tengeri \u00e9s t\u00f6megk\u00f6zleked\u00e9s.<\/td>\r\n<\/tr>\r\n
Rendszerfesz\u00fclts\u00e9g<\/strong><\/td>\r\nK\u00f6veti a szabv\u00e1nyos v\u00e1ltakoz\u00f3 fesz\u00fclts\u00e9geket (pl. 120V, 230V, 400V, 480V).<\/td>\r\nEr\u0151sen v\u00e1ltoztathat\u00f3 (pl. 12V, 24V, 48V akkumul\u00e1torokhoz; 600V-t\u00f3l 1500V-ig szol\u00e1rh\u00farokhoz).<\/td>\r\n<\/tr>\r\n
Jelenlegi viselked\u00e9s<\/strong><\/td>\r\nV\u00e1ltakoz\u00f3 \u00e1ram.<\/strong>\u00a0A fesz\u00fclts\u00e9g m\u00e1sodpercenk\u00e9nt 100 vagy 120 alkalommal l\u00e9pi \u00e1t a null\u00e1t. Ez seg\u00edt\u00a0eloltani az elektromos \u00edvet<\/strong>.<\/td>\r\nEgyen\u00e1ram.<\/strong>\u00a0A fesz\u00fclts\u00e9g \u00e1lland\u00f3 \u00e9s nem l\u00e9pi \u00e1t a null\u00e1t. Ez teszi\u00a0az \u00edvel\u00e9s sokkal tart\u00f3sabb \u00e9s vesz\u00e9lyesebb<\/strong>.<\/td>\r\n<\/tr>\r\n
Key Design Challenge<\/strong><\/td>\r\nTranziens t\u00falfesz\u00fclts\u00e9gek kezel\u00e9se. A v\u00e1lt\u00f3\u00e1ram nulla keresztez\u00e9se term\u00e9szetesen seg\u00edti a megszak\u00edt\u00e1sk\u00f6vet\u0151 \u00e1ramot.<\/td>\r\n\u00cdv elnyom\u00e1s.<\/strong>\u00a0The primary challenge is to safely quench the \"follow current\" from the DC source after a surge event without the SPD catching fire.<\/td>\r\n<\/tr>\r\n
Bels\u0151 technol\u00f3gia \u00e9s alkatr\u00e9szek<\/strong><\/td>\r\nEls\u0151sorban felhaszn\u00e1l\u00e1sra\u00a0F\u00e9moxid-varisztorok (MOV-k)<\/strong>\u00a0\u00e9s n\u00e9ha Gas Discharge Tubes (GDT). A tervek viszonylag egyszer\u0171ek.<\/td>\r\nRobusztusabb\u00a0MOV-ok<\/strong>\u00a0speci\u00e1lis \u00edvolt\u00f3 kamr\u00e1kkal\/t\u00f6lt\u0151anyagokkal. S\u00falyosabb t\u00e1maszkod\u00e1s\u00a0GDT-k<\/strong>\u00a0kifejezetten egyen\u00e1ramra tervezett, amely biztons\u00e1gosan kezeli a folyamatos egyenfesz\u00fclts\u00e9get sziv\u00e1rg\u00e1s n\u00e9lk\u00fcl.<\/td>\r\n<\/tr>\r\n
N\u00e9vleges fesz\u00fclts\u00e9g (Uc)<\/strong><\/td>\r\nSzabv\u00e1nyos AC RMS fesz\u00fclts\u00e9geken (pl. 275V, 320V, 440V) folyamatos m\u0171k\u00f6d\u00e9sre m\u00e9retezett.<\/td>\r\nFolyamatos m\u0171k\u00f6d\u00e9sre m\u00e9retezett az adott egyen\u00e1ram\u00fa rendszerfesz\u00fclts\u00e9g mellett (pl. 1000V DC, 1500V DC).<\/td>\r\n<\/tr>\r\n
Lekapcsol\u00e1s \u00e9s biztons\u00e1g<\/strong><\/td>\r\nGyakran tartalmaz termikus szakaszol\u00f3kat a sok t\u00falfesz\u00fclts\u00e9g miatt leromlott MOV biztons\u00e1gos meghib\u00e1sod\u00e1s\u00e1ra.<\/td>\r\nKritikus \u00e9s robusztusabb.<\/strong>\u00a0Fejlett hibamechanizmusok sz\u00fcks\u00e9gesek ahhoz, hogy az SPD-t fizikailag lev\u00e1laszts\u00e1k az egyen\u00e1ramforr\u00e1sr\u00f3l hibamentesen, mivel a tart\u00f3s egyen\u00e1ram\u00fa \u00edv komoly t\u0171zvesz\u00e9lyt jelent.<\/td>\r\n<\/tr>\r\n
Tan\u00fas\u00edt\u00e1si szabv\u00e1nyok<\/strong><\/td>\r\nUL 1449 (\u00c9szak-Amerika), IEC 61643-11 (Nemzetk\u00f6zi).<\/td>\r\nUL 1449 (meghat\u00e1rozott egyen\u00e1ram\u00fa alkalmaz\u00e1sokhoz), IEC 61643-11, UL 497B, valamint a PV-rendszerekre vonatkoz\u00f3 speci\u00e1lis szabv\u00e1nyok, mint p\u00e9ld\u00e1ul az IEC 62548.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n \r\n

Oszt\u00e1lyoz\u00e1s jelt\u00edpus szerint<\/h3>\r\n
Az ipari k\u00f6rnyezet nemcsak elektromos vezet\u00e9keket tartalmaz, hanem sz\u00e1mos jel- \u00e9s vez\u00e9rl\u0151vezet\u00e9ket is. A jel SPD-ket kifejezetten ezeknek a kisfesz\u00fclts\u00e9g\u0171 vezet\u00e9keknek a v\u00e9delm\u00e9re tervezt\u00e9k, mint p\u00e9ld\u00e1ul:<\/div>\r\n
\u25cf H\u00e1l\u00f3zati\/Ethernet SPD<\/div>\r\n
\u25cf RS-232\/485\/422 soros port SPD<\/div>\r\n
\u25cf Anal\u00f3g\/digit\u00e1lis I\/O SPD<\/div>\r\n
\u25cf Koaxi\u00e1lis k\u00e1bel SPD (vide\u00f3 megfigyel\u00e9shez, antenn\u00e1khoz stb.)<\/div>\r\n \r\n

Szerel\u00e9si szerkezet szerinti oszt\u00e1lyoz\u00e1s<\/h3>\r\n

Plug-in t\u00falfesz\u00fclts\u00e9g-v\u00e9delmi eszk\u00f6z\u00f6k<\/h4>\r\n
\u00dagy n\u00e9z ki, mint egy adapter, \u00e9s k\u00f6zvetlen\u00fcl a fali aljzatba csatlakoztathat\u00f3. F\u0151leg egyetlen eszk\u00f6z v\u00e9delm\u00e9re szolg\u00e1l, \u00e9s a 3-as t\u00edpushoz tartozik.<\/div>\r\n \r\n

Modul\u00e1ris t\u00falfesz\u00fclts\u00e9g-v\u00e9delmi eszk\u00f6z\u00f6k<\/h4>\r\n
A szabv\u00e1nyos modul\u00e1ris fel\u00e9p\u00edt\u00e9s lehet\u0151v\u00e9 teszi, hogy az eloszt\u00f3szekr\u00e9nyben DIN-s\u00ednre szerelhet\u0151, ak\u00e1rcsak egy megszak\u00edt\u00f3. Ez a leggyakoribb forma az ipari alkalmaz\u00e1sokban, megk\u00f6nny\u00edtve a telep\u00edt\u00e9st, a cser\u00e9t \u00e9s az \u00e1llapotfel\u00fcgyeletet (t\u00e1vjelz\u0151 \u00e9rintkez\u0151k\u00f6n kereszt\u00fcl). Az 1-es \u00e9s a 2-es t\u00edpus t\u00f6bbnyire ebb\u0151l a t\u00edpusb\u00f3l \u00e1ll.<\/div>\r\n \r\n

Doboz t\u00edpus\u00fa t\u00falfesz\u00fclts\u00e9g-v\u00e9delmi eszk\u00f6z\u00f6k<\/h4>\r\n
Az SPD modulok, biztos\u00edt\u00e9kok vagy megszak\u00edt\u00f3k egyetlen v\u00e9d\u0151burkolatba vannak integr\u00e1lva, amelyet \u00e1ltal\u00e1ban k\u00fclt\u00e9ri vagy terepi berendez\u00e9sek dobozaiban haszn\u00e1lnak.<\/div>\r\n \r\n

Hogyan \u00e9p\u00edts\u00fcnk fel l\u00e9pcs\u0151zetes (l\u00e9pcs\u0151s) v\u00e9delmi rendszert?<\/h2>\r\n
Egyetlen SPD nem tud t\u00f6k\u00e9letes v\u00e9delmet ny\u00fajtani, ez\u00e9rt t\u00f6bbszint\u0171 (vagy l\u00e9pcs\u0151zetes) v\u00e9delmi strat\u00e9gi\u00e1ra van sz\u00fcks\u00e9g.<\/div>\r\n

A fokozatos v\u00e9delem elve<\/h4>\r\n
The core concept of graded protection is \"step-by-step discharge and layer-by-layer clamping.\"<\/div>\r\n
1. szint (Type 1\/Type 1+2): A f\u0151 bej\u00f6v\u0151 vezet\u00e9ken felveszi \u00e9s kis\u00fcti a hatalmas t\u00falfesz\u00fclts\u00e9g t\u00falnyom\u00f3 r\u00e9sz\u00e9t, \u00edgy a t\u00f6bb kilovoltos t\u00falfesz\u00fclts\u00e9get alacsonyabb szintre (pl. 1500-2500V) korl\u00e1tozza.<\/div>\r\n
2. szint (2. t\u00edpus): Az eloszt\u00f3 panelen tov\u00e1bb kis\u00fcti az 1. szintet \u00e1thatol\u00f3 marad\u00e9k t\u00falfesz\u00fclts\u00e9geket, \u00e9s biztons\u00e1gosabb szintre szor\u00edtja a fesz\u00fclts\u00e9get (pl. 1000-1500 V).<\/div>\r\n
3. szint (3. t\u00edpus): A berendez\u00e9s el\u00fcls\u0151 r\u00e9sz\u00e9n biztos\u00edtja a kisebb marad\u00e9k t\u00falfesz\u00fclts\u00e9gek v\u00e9gs\u0151 elnyom\u00e1s\u00e1t, a lehet\u0151 legalacsonyabb marad\u00e9kfesz\u00fclts\u00e9get k\u00edn\u00e1lva (\u00e1ltal\u00e1ban 1000 V alatt), biztos\u00edtva a prec\u00edzi\u00f3s berendez\u00e9sek portjainak abszol\u00fat biztons\u00e1g\u00e1t.<\/div>\r\n
Egy bizonyos vonalt\u00e1vols\u00e1got (\u00e1ltal\u00e1ban t\u00f6bb mint 10 m\u00e9tert) be kell tartani az SPD egyes szintjei k\u00f6z\u00f6tt, hogy a vonal impedanci\u00e1j\u00e1t az energiakoordin\u00e1ci\u00f3hoz felhaszn\u00e1lhassuk. Ha a t\u00e1vols\u00e1g nem elegend\u0151, lev\u00e1laszt\u00f3 alkatr\u00e9szekre (p\u00e9ld\u00e1ul dedik\u00e1lt lev\u00e1laszt\u00f3 induktorokra vagy megfelel\u0151 biztos\u00edt\u00e9kokra\/megszak\u00edt\u00f3kra) van sz\u00fcks\u00e9g annak biztos\u00edt\u00e1s\u00e1ra, hogy az SPD minden szintje \u00f6sszehangolt sorrendben m\u0171k\u00f6dj\u00f6n.<\/div>\r\n \r\n

P\u00e9lda Spd konfigur\u00e1ci\u00f3ra tipikus ipari forgat\u00f3k\u00f6nyvekben<\/h4>\r\n
Forgat\u00f3k\u00f6nyv: Automatiz\u00e1lt gy\u00e1rt\u00f3sorvez\u00e9rl\u0151 k\u00f6zpont<\/div>\r\n
F\u0151 eloszt\u00f3 helyis\u00e9g (MDB): Telep\u00edtsen 1+2 t\u00edpus\u00fa SPD-ket, hogy megv\u00e9dje az eg\u00e9sz \u00e9p\u00fclet t\u00e1pell\u00e1t\u00e1s\u00e1t.<\/div>\r\n
Gy\u00e1rt\u00f3sori vez\u00e9rl\u0151szekr\u00e9ny (SDB): 2-es t\u00edpus\u00fa SPD-ket telep\u00edtsen az alapvet\u0151 vez\u00e9rl\u0151egys\u00e9gek, p\u00e9ld\u00e1ul a PLC-k \u00e9s a frekvenciav\u00e1lt\u00f3k t\u00e1pell\u00e1t\u00e1s\u00e1nak v\u00e9delm\u00e9re.<\/div>\r\n
PLC I\/O modul el\u00fcls\u0151 r\u00e9sz: Szerelje fel a jel-SPD-ket a vez\u00e9rl\u0151 jelvezet\u00e9kekre (pl. 24 V DC).<\/div>\r\n
M\u00e9rn\u00f6ki munka\u00e1llom\u00e1s: A sz\u00e1m\u00edt\u00f3g\u00e9p \u00e9s a programoz\u00f3 v\u00e9delme \u00e9rdek\u00e9ben haszn\u00e1ljon 3-as t\u00edpus\u00fa SPD aljzatk\u00e1rty\u00e1kat az aljzatokon.<\/div>\r\n
M\u0171hely h\u00e1l\u00f3zati kapcsol\u00f3: Telep\u00edtse az Ethernet SPD-ket a h\u00e1l\u00f3zati portokra.<\/div>\r\n \r\n

GYIK<\/h2>\r\n
Hogyan v\u00e1lasszuk ki a megfelel\u0151 SPD-t\u00edpust a webhely felt\u00e9telei alapj\u00e1n?<\/strong><\/div>\r\n
1. l\u00e9p\u00e9s: Hat\u00e1rozza meg a telep\u00edt\u00e9s hely\u00e9t. V\u00e1lassza a T1 vagy T1+2 f\u0151 bej\u00f6v\u0151 vonali szekr\u00e9nyt; T2 az eloszt\u00f3szekr\u00e9nyhez; \u00e9s T3 a berendez\u00e9s el\u00fcls\u0151 r\u00e9sz\u00e9hez.<\/div>\r\n
2. l\u00e9p\u00e9s: Ellen\u0151rizze a kulcsparam\u00e9tereket. A maxim\u00e1lis folyamatos \u00fczemi fesz\u00fclts\u00e9gnek (Uc) nagyobbnak kell lennie, mint a helyi elektromos h\u00e1l\u00f3zatban el\u0151fordul\u00f3 legmagasabb fesz\u00fclts\u00e9g; a n\u00e9vleges kis\u00fcl\u00e9si \u00e1ramnak (In) \u00e9s a maxim\u00e1lis kis\u00fcl\u00e9si \u00e1ramnak (Imax) meg kell felelnie a telep\u00edt\u00e9si pont vill\u00e1mv\u00e9delmi szintje (LPL) k\u00f6vetelm\u00e9nyeinek; a fesz\u00fclts\u00e9gv\u00e9delmi szintnek (Up) alacsonyabbnak kell lennie, mint a v\u00e9dett berendez\u00e9s ellen\u00e1ll\u00e1si fesz\u00fclts\u00e9g\u00e9rt\u00e9ke.<\/div>\r\n
3. l\u00e9p\u00e9s: Vegye figyelembe az egy\u00e9b t\u00e9nyez\u0151ket is, p\u00e9ld\u00e1ul az \u00e1ramell\u00e1t\u00f3 rendszert (AC\/DC), a telep\u00edt\u00e9si m\u00f3dot (modul\u00e1ris\/doboz t\u00edpus\u00fa), az \u00e1llapotjelz\u00e9st \u00e9s a t\u00e1vjelz\u00e9si funkci\u00f3k k\u00f6vetelm\u00e9nyeit.<\/div>\r\n \r\n
Az ipari SPD napi ellen\u0151rz\u00e9se \u00e9s karbantart\u00e1sa<\/strong><\/div>\r\n
Rendszeres szemrev\u00e9telez\u00e9s: Ellen\u0151rizze az SPD-t fizikai s\u00e9r\u00fcl\u00e9sek, p\u00e9ld\u00e1ul reped\u00e9sek vagy \u00e9g\u00e9si nyomok szempontj\u00e1b\u00f3l.<\/div>\r\n
Figyelje meg az \u00e1llapotjelz\u0151t: A legt\u00f6bb SPD-nek van sz\u00ednk\u00f3dolt ablaka (z\u00f6ld\/piros). A z\u00f6ld a norm\u00e1l m\u0171k\u00f6d\u00e9st, a piros pedig a meghib\u00e1sod\u00e1st jelzi, amely azonnali cser\u00e9t ig\u00e9nyel.<\/div>\r\n
Vezessen karbantart\u00e1si napl\u00f3t: Jegyezze fel a telep\u00edt\u00e9s d\u00e1tum\u00e1t, az els\u0151 ellen\u0151rz\u00e9s d\u00e1tum\u00e1t \u00e9s a k\u00e9s\u0151bbi ellen\u0151rz\u00e9s r\u00e9szleteit. M\u00e9g norm\u00e1l \u00e1llapotban is az SPD-k \u00e9lettartama korl\u00e1tozott; id\u0151szakonk\u00e9nt (pl. 3-5 \u00e9vente) vagy nagyobb t\u00falfesz\u00fclts\u00e9g-esem\u00e9ny ut\u00e1n javasolt ellen\u0151rizni vagy cser\u00e9lni.<\/div>\r\n
Professzion\u00e1lis tesztel\u00e9s: Speci\u00e1lis m\u0171szerekkel m\u00e9rje meg a varisztor sziv\u00e1rg\u00f3 \u00e1ram\u00e1t, \u00e9s \u00e9rt\u00e9kelje a teljes\u00edtm\u00e9ny roml\u00e1s\u00e1t.<\/div>\r\n \r\n
Megakad\u00e1lyozhatj\u00e1k a t\u00falfesz\u00fclts\u00e9g-v\u00e9delmi eszk\u00f6z\u00f6k a megszak\u00edt\u00f3k kiold\u00e1s\u00e1t?<\/strong><\/div>\r\n
Az SPD els\u0151dleges feladata, hogy megakad\u00e1lyozza a berendez\u00e9s t\u00falfesz\u00fclts\u00e9g \u00e1ltali k\u00e1rosod\u00e1s\u00e1t, nem pedig a megszak\u00edt\u00f3k kiold\u00e1s\u00e1t.<\/div>\r\n \r\n

K\u00f6vetkeztet\u00e9s<\/h2>\r\n
A k\u00fcl\u00f6nb\u00f6z\u0151 t\u00edpus\u00fa ipari t\u00falfesz\u00fclts\u00e9g-v\u00e9delmi k\u00e9sz\u00fcl\u00e9kek (SPD) (t1, t2, t3) m\u0171szaki alapelveinek \u00e9s alkalmaz\u00e1si forgat\u00f3k\u00f6nyveinek meg\u00e9rt\u00e9s\u00e9vel, valamint az er\u0151s\u00e1ram\u00fa \u00e9s jelvezet\u00e9kek \u00e1tfog\u00f3 v\u00e9delm\u00e9vel kombin\u00e1lva hat\u00e9kony hierarchikus (l\u00e9p\u00e9sr\u0151l l\u00e9p\u00e9sre) v\u00e9delmi rendszert \u00e9p\u00edthet\u00fcnk fel.<\/div>","protected":false},"featured_media":1601,"parent":0,"menu_order":107,"template":"","meta":{"_acf_changed":false},"blog_category":[9],"class_list":["post-2231","blog","type-blog","status-publish","has-post-thumbnail","hentry","blog_category-industry-news"],"acf":{"des":"This article provides a detailed analysis of the Type 1\/2\/3 industrial surge protection devices (SPD) and their technical principles, explains how to construct an effective hierarchical (step-by-step) protection strategy to ensure the safety of industrial equipment, and answers common selection and maintenance questions.","txt":"
This article will systematically introduce the types, classification methods, and how to build an effective graded protection system for industrial surge protectors (SPD)<\/strong><\/a>.<\/div>\r\n \r\n

Classification By Technical Principle And Discharge Capacity<\/h2>\r\n
This is the core classification method for SPD, which directly determines their application scenarios and protection levels, and is usually based on international standards such as IEC 61643.<\/div>\r\n\"BR-25M<\/a>\r\n

Type 1 (Type 1\/T1): Energy Discharge<\/h3>\r\n
Technical Principle: <\/strong>Type 1 surge protection devices<\/a> typically uses a spark gap as its core component. Its main characteristic is its high surge current discharge capability.<\/div>\r\n
Discharge Capability: <\/strong>Capable of withstanding and releasing direct lightning strikes or partial lightning current (simulating a 10\/350\u00b5s waveform); test currents can typically reach tens of kiloamperes.<\/div>\r\n
Application Scenarios: <\/strong>Primarily installed at the entrance of the building's main distribution cabinet (MDB) as a primary protection device to release lightning current from external lines (e.g., power lines).<\/div>\r\n \r\n\r\n\"BR-20<\/a>\r\n

Type 2 (Type 2\/T2): Voltage Limiter<\/h3>\r\n
Technical Principle: The core component is a varistor (MOV). Under normal voltage, the MOV exhibits high resistance; when a surge overvoltage occurs, its resistance drops sharply, bypassing the current and clamping the voltage to a safe level.<\/div>\r\n
Discharge Capacity: Type 2 surge protection devices<\/a> Used to discharge induced lightning strikes and operational overvoltages (simulating 8\/20\u00b5s waveform), with a discharge capacity typically ranging from several thousand to tens of thousands of amperes.<\/div>\r\n
Application Scenarios: Installed downstream of the main distribution cabinet in the distribution cabinet (distribution panel, SDB) or before the control cabinet of important equipment, serving as secondary protection to provide protection for most electrical equipment.<\/div>\r\n\"BR-230<\/a>\r\n

Type 3 (Type 3\/T3): Advanced Protection<\/h3>\r\n
Technical Principle: Typically employs finer MOVs, gas discharge tubes, or TVS diodes, resulting in extremely fast response and lower residual voltage (protection level).<\/div>\r\n
Discharge Capacity: The discharge capacity is relatively small, primarily used to further suppress residual surge voltage.<\/div>\r\n
Application Scenarios: Type 3 surge protection devices<\/a> installed very close to the protected equipment, such as in the equipment's socket or socket board, for fine protection. It usually needs to be used in conjunction with a Type 2 SPD and cannot be installed alone.<\/div>\r\n \r\n\r\n\"BR-12.5M<\/a>\r\n

Combined Spd (Type 1+2): Integrated Solution<\/h3>\r\n
Technical Principle: This device integrates a Type 1 spark gap and a Type 2 varistor, offering the advantages of high discharge capability and low protection level.<\/div>\r\n
Application Scenarios: Combined SPD (Type 1+2) surge protection devices<\/a> suitable for applications with limited space or requiring simplified design. It can be directly installed in the main distribution cabinet at the building entrance, providing combined first- and second-level protection.<\/div>\r\n \r\n

Extended Classification Of Industrial Surge Protection Devices<\/h2>\r\n
In addition to core technology types, industrial SPDs can also be classified according to other dimensions.<\/div>\r\n

Classification By Power Source Type<\/h3>\r\n
AC power supply SPD: Used to protect AC power supply systems, such as 380V\/220V industrial power grids.<\/div>\r\n
DC power supply SPD: Used to protect DC power supply systems, such as photovoltaic power generation systems, DC motor drives, and communication base station power supplies.<\/div>\r\n \r\n

AC Power SPD VS Dc Power SPD<\/h4>\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Feature<\/th>\r\nAC Power SPD<\/th>\r\nDC Power SPD<\/th>\r\n<\/tr>\r\n<\/thead>\r\n
Primary Application<\/strong><\/td>\r\nMain electrical panels, sub-panels, branch circuits in homes, offices, and industrial facilities.<\/td>\r\nSolar PV arrays, battery storage systems, EV charging stations, telecommunications, automotive, marine, and public transport.<\/td>\r\n<\/tr>\r\n
System Voltage<\/strong><\/td>\r\nFollows standard AC voltages (e.g., 120V, 230V, 400V, 480V).<\/td>\r\nHighly variable (e.g., 12V, 24V, 48V for batteries; 600V to 1500V for solar strings).<\/td>\r\n<\/tr>\r\n
Current Behavior<\/strong><\/td>\r\nAlternating Current.<\/strong>\u00a0The voltage crosses zero 100 or 120 times per second. This helps\u00a0extinguish an electrical arc<\/strong>.<\/td>\r\nDirect Current.<\/strong>\u00a0The voltage is constant and does not cross zero. This makes\u00a0arcing much more sustained and dangerous<\/strong>.<\/td>\r\n<\/tr>\r\n
Key Design Challenge<\/strong><\/td>\r\nManaging transient overvoltages. The zero-crossing of AC naturally helps interrupt follow current.<\/td>\r\nArc Suppression.<\/strong>\u00a0The primary challenge is to safely quench the \"follow current\" from the DC source after a surge event without the SPD catching fire.<\/td>\r\n<\/tr>\r\n
Internal Technology & Components<\/strong><\/td>\r\nPrimarily uses\u00a0Metal Oxide Varistors (MOVs)<\/strong>\u00a0and sometimes Gas Discharge Tubes (GDTs). Designs are relatively straightforward.<\/td>\r\nUses more robust\u00a0MOVs<\/strong>\u00a0with special arc-quenching chambers\/fillers. Heavier reliance on\u00a0GDTs<\/strong>\u00a0specifically designed for DC, which can safely handle the continuous DC voltage without leaking.<\/td>\r\n<\/tr>\r\n
Voltage Rating (Uc)<\/strong><\/td>\r\nRated for continuous operation at standard AC RMS voltages (e.g., 275V, 320V, 440V).<\/td>\r\nRated for continuous operation at the specific DC system voltage (e.g., 1000V DC, 1500V DC).<\/td>\r\n<\/tr>\r\n
Disconnection & Safety<\/strong><\/td>\r\nOften includes thermal disconnectors to safely fail an MOV that has been degraded by many surges.<\/td>\r\nCritical and more robust.<\/strong>\u00a0Requires advanced failure mechanisms to physically disconnect the SPD from the DC source in a fail-safe manner, as a sustained DC arc is a major fire hazard.<\/td>\r\n<\/tr>\r\n
Certification Standards<\/strong><\/td>\r\nUL 1449 (North America), IEC 61643-11 (International).<\/td>\r\nUL 1449 (for specific DC applications), IEC 61643-11, UL 497B, and specific standards for PV systems like IEC 62548.<\/td>\r\n<\/tr>\r\n<\/tbody>\r\n<\/table>\r\n \r\n

Classification By Signal Type<\/h3>\r\n
Industrial environments contain not only power lines but also numerous signal and control lines. Signal SPDs are specifically designed to protect these low-voltage lines, such as:<\/div>\r\n
\u25cf Network\/Ethernet SPD<\/div>\r\n
\u25cf RS-232\/485\/422 Serial Port SPD<\/div>\r\n
\u25cf Analog\/Digital I\/O SPD<\/div>\r\n
\u25cf Coaxial Cable SPD (used for video surveillance, antennas, etc.)<\/div>\r\n \r\n

Classification By Mounting Structure<\/h3>\r\n

Plug-In Surge Protective Devices<\/h4>\r\n
It looks like an adapter and plugs directly into a wall socket. It is mainly used to protect a single device and belongs to Type 3.<\/div>\r\n \r\n

Modular Surge Protective Devices<\/h4>\r\n
The standard modular design allows it to be mounted on a DIN rail in a distribution cabinet, just like a circuit breaker. This is the most common form in industrial applications, facilitating installation, replacement, and condition monitoring (via remote signaling contacts). Type 1 and Type 2 are mostly of this type.<\/div>\r\n \r\n

Box-Type Surge Protective Devices<\/h4>\r\n
SPD modules, fuses, or circuit breakers are integrated into a single protective enclosure, which is commonly used in outdoor or field equipment boxes.<\/div>\r\n \r\n

How To Build A Tiered (Stepped) Protection System?<\/h2>\r\n
A single SPD cannot provide perfect protection, so a tiered (or stepped) protection strategy is required.<\/div>\r\n

Principle Of Tiered Protection<\/h4>\r\n
The core concept of graded protection is \"step-by-step discharge and layer-by-layer clamping.\"<\/div>\r\n
Level 1 (Type 1\/Type 1+2): At the main incoming line, it absorbs and discharges the vast majority of the massive surge energy, limiting overvoltages of several kilovolts to a lower level (e.g., 1500-2500V).<\/div>\r\n
Level 2 (Type 2): At the distribution panel, it further discharges residual surges that have penetrated Level 1 and clamps the voltage to a safer level (e.g., 1000-1500V).<\/div>\r\n
Level 3 (Type 3): At the front end of the equipment, it provides final suppression of minor residual surges, offering the lowest possible residual voltage (typically below 1000V), ensuring the absolute safety of precision equipment ports.<\/div>\r\n
A certain line distance (generally recommended to be more than 10 meters) needs to be maintained between each level of SPD to utilize line impedance for energy coordination. If the distance is insufficient, decoupling components (such as dedicated decoupling inductors or appropriate fuses\/circuit breakers) are required to ensure that each level of SPD operates in a coordinated sequence.<\/div>\r\n \r\n

Example Of Spd Configuration In Typical Industrial Scenarios<\/h4>\r\n
Scenario: Automated Production Line Control Center<\/div>\r\n
Main Distribution Room (MDB): Install Type 1+2 SPDs to protect the power input to the entire building.<\/div>\r\n
Production Line Control Cabinet (SDB): Install Type 2 SPDs to protect the power supply to core control units such as PLCs and frequency converters.<\/div>\r\n
PLC I\/O Module Front: Install signal SPDs on control signal lines (e.g., 24V DC).<\/div>\r\n
Engineer Workstation: Use Type 3 SPD socket boards on the sockets to protect the computer and programmer.<\/div>\r\n
Workshop Network Switch: Install Ethernet SPDs on the network ports.<\/div>\r\n \r\n

FAQ<\/h2>\r\n
How To Select The Appropriate SPD Type Based On Site Conditions?<\/strong><\/div>\r\n
Step 1: Determine the installation location. Select T1 or T1+2 for the main incoming line cabinet; T2 for the distribution cabinet; and T3 for the equipment front end.<\/div>\r\n
Step 2: Check key parameters. The maximum continuous operating voltage (Uc) must be greater than the highest voltage that may occur in the local power grid; the nominal discharge current (In) and maximum discharge current (Imax) must meet the lightning protection level (LPL) requirements of the installation point; the voltage protection level (Up) should be lower than the withstand voltage value of the protected equipment.<\/div>\r\n
Step 3: Consider other factors, such as the power supply system (AC\/DC), installation method (modular\/box-type), status indication, and remote signaling function requirements.<\/div>\r\n \r\n
Daily Inspection And Maintenance Of Industrial SPD<\/strong><\/div>\r\n
Regular visual inspection: Check the SPD for physical damage, such as cracks or burn marks.<\/div>\r\n
Observe the status indicator: Most SPDs have a color-coded window (green\/red) indicator. Green indicates normal operation, and red indicates failure, requiring immediate replacement.<\/div>\r\n
Keep a maintenance log: Record the installation date, initial inspection date, and subsequent inspection details. Even when in normal condition, SPDs have a limited lifespan; it is recommended to inspect or replace them periodically (e.g., every 3-5 years) or after a major surge event.<\/div>\r\n
Professional testing: Use specialized instruments to measure the leakage current of the varistor and assess for performance degradation.<\/div>\r\n \r\n
Can Surge Protection Devices Prevent Circuit Breakers From Tripping?<\/strong><\/div>\r\n
The primary function of an SPD is to prevent equipment from being damaged by overvoltage, not to prevent circuit breakers from tripping.<\/div>\r\n \r\n

Conclusion<\/h2>\r\n
Understanding the technical principles and application scenarios of different types of industrial surge protection devices (SPD) (t1, t2, t3), and combining them with comprehensive protection of power and signal lines, we can build an effective hierarchical (step-by-step) protection system.<\/div>"},"_links":{"self":[{"href":"https:\/\/www.britecelectric.com\/hu\/wp-json\/wp\/v2\/blog\/2231","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.britecelectric.com\/hu\/wp-json\/wp\/v2\/blog"}],"about":[{"href":"https:\/\/www.britecelectric.com\/hu\/wp-json\/wp\/v2\/types\/blog"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.britecelectric.com\/hu\/wp-json\/wp\/v2\/media\/1601"}],"wp:attachment":[{"href":"https:\/\/www.britecelectric.com\/hu\/wp-json\/wp\/v2\/media?parent=2231"}],"wp:term":[{"taxonomy":"blog_category","embeddable":true,"href":"https:\/\/www.britecelectric.com\/hu\/wp-json\/wp\/v2\/blog_category?post=2231"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}