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Warning: Table './ssm_restore/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:1454:\"Table 'ssm_restore.cache_filter' doesn't exist\nquery: UPDATE cache_filter SET data = ' <p></p><p>Pozdrav narode,<br />\\nnov sam na forumu, prvo mi je javljanje. Pitanja ce prstati, kad se zalaufam ni dete mi nije ravno.</p>\\n<p>Elem, nabavio sam inverter za REL zavarivanje pre nekih mesec dana, ucenje je u toku. Medjutim, nerazumem proizvodjacke oznake za polaritet sa kutije elektroda.</p>\\n<p>Koristio sam rutilne elektrode> elektroda povezana na + pol, a kles in /home/admin/domains/samsvojmajstor.com/public_html/portal/includes/database.mysql.inc on line 135

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Warning: Table './ssm_restore/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:337:\"Table 'ssm_restore.cache_filter' doesn't exist\nquery: UPDATE cache_filter SET data = ' <p></p><p>Polarizacija se uvek odnosi na elektrodu.</p>\\n ', created = 1685193622, expire = 1685280022, headers = '', serialized = 0 WHERE cid = '1:56d6793de7332656f73a2f71df4f42c2'\";s:5:\"%file\";s:76:\"/home/admin/domains/samsvojmajstor.com/public_html/portal/includes/cache.inc\";s:5:\"%line\";i:108;}', 3, '', 'http://www.samsvojmajstor.com/po in /home/admin/domains/samsvojmajstor.com/public_html/portal/includes/database.mysql.inc on line 135

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Warning: Table './ssm_restore/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:386:\"Table 'ssm_restore.cache_filter' doesn't exist\nquery: UPDATE cache_filter SET data = ' <p></p><p>Знам да незнам, а све што знам научио сам од неког.</p>\\n ', created = 1685193622, expire = 1685280022, headers = '', serialized = 0 WHERE cid = '3:2931e432294a1643b5ed309e8d1117fc'\";s:5:\"%file\";s:76:\"/home/admin/domains/samsvojmajstor.com/public_html/portal/includes/cache.inc\";s:5:\"%line\";i:108;}', 3, � in /home/admin/domains/samsvojmajstor.com/public_html/portal/includes/database.mysql.inc on line 135

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Warning: Table './ssm_restore/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:2745:\"Table 'ssm_restore.cache_filter' doesn't exist\nquery: UPDATE cache_filter SET data = ' <p></p><p><div class=\\"bb-quote\\"><b>Millos wrote:</b><blockquote class=\\"bb-quote-body\\">... Medjutim, nerazumem proizvodjacke oznake za polaritet sa kutije elektroda.<br />\\nKoristio sam rutilne elektrode> elektroda povezana na + pol, a klesta mase na - (minus) pol. (Nadam se da sam to uradio ispravno)<br />\\nKupio sam k in /home/admin/domains/samsvojmajstor.com/public_html/portal/includes/database.mysql.inc on line 135

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Warning: Table './ssm_restore/watchdog' is marked as crashed and should be repaired query: INSERT INTO watchdog (uid, type, message, variables, severity, link, location, referer, hostname, timestamp) VALUES (0, 'php', '%message in %file on line %line.', 'a:4:{s:6:\"%error\";s:12:\"user warning\";s:8:\"%message\";s:553:\"Table 'ssm_restore.cache_filter' doesn't exist\nquery: UPDATE cache_filter SET data = ' <p></p><p>Hvala obojici na brzim i kvalitetnim odgovorima. Postupacu u skladu sa preporukom proizvodjaca, naravno. Dilema razresena.</p>\\n<p>P.S. Iz radoznalosti > naveli ste sta su negativne strane stavljanja bazicne na minus, a koje su pozitivne?</p>\\n ', created = 1685193622, expire = 1685280022, headers = '', serialized = 0 WHERE cid = '1:f1eed52b2fdb37ad65e122b27e3 in /home/admin/domains/samsvojmajstor.com/public_html/portal/includes/database.mysql.inc on line 135

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Polaritet elektrode na REL inverteru
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Naslovna > Forums > Uradi sam > Bravarija > Polaritet elektrode na REL inverteru

Polaritet elektrode na REL inverteru

Submitted by Millos on Thu, 11/12/2014 - 06:20

Pozdrav narode,
nov sam na forumu, prvo mi je javljanje. Pitanja ce prstati, kad se zalaufam ni dete mi nije ravno.

Elem, nabavio sam inverter za REL zavarivanje pre nekih mesec dana, ucenje je u toku. Medjutim, nerazumem proizvodjacke oznake za polaritet sa kutije elektroda.

Koristio sam rutilne elektrode> elektroda povezana na + pol, a klesta mase na - (minus) pol. (Nadam se da sam to uradio ispravno)

Kupio sam kutiju bazicnih i na njoj je oznaka = +, ~. Znam da je ~ oznaka za naizmenicnu struju, = oznaka za jednosmernu struju, a ono sto ne znam je: da li + znaci staviti elektrodu na + ili staviti masu na + pol ?

Probao sam odgovor da pronadjem na stranim forumima na engleskom jeziku - na svakom forumu brdo strucnjaka i brdo suprotsvaljenih misljenja i objasnjenja zasto staviti bazicnu na + ili na -, nista se ni sa cim ne podudara, ne mogu da povezem sta je ispravno. Naravno da prihvatam i ocekujem individualno misljenje zasto staviti bazicnu na plus ili na minus, ali me pre svega zanima sta ovaj proizvodjac sugerise da se koristi.

Thu, 11/12/2014 - 08:47
Polarizacija se uvek odnosi
#2 [1]
branimir
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Polarizacija se uvek odnosi na elektrodu.

Знам да незнам, а све што знам научио сам од неког.

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Thu, 11/12/2014 - 12:03
.
#3 [3]
zoran_i
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Millos wrote:
... Medjutim, nerazumem proizvodjacke oznake za polaritet sa kutije elektroda.
Koristio sam rutilne elektrode> elektroda povezana na + pol, a klesta mase na - (minus) pol. (Nadam se da sam to uradio ispravno)
Kupio sam kutiju bazicnih i na njoj je oznaka = +, ~. Znam da je ~ oznaka za naizmenicnu struju, = oznaka za jednosmernu struju, a ono sto ne znam je: da li + znaci staviti elektrodu na + ili staviti masu na + pol ?
Probao sam odgovor da pronadjem na stranim forumima na engleskom jeziku - na svakom forumu brdo strucnjaka i brdo suprotsvaljenih misljenja i objasnjenja zasto staviti bazicnu na + ili na -, nista se ni sa cim ne podudara, ne mogu da povezem sta je ispravno. Naravno da prihvatam i ocekujem individualno misljenje zasto staviti bazicnu na plus ili na minus, ali me pre svega zanima sta ovaj proizvodjac sugerise da se koristi.

Ono sto stavi proizvodjac na kutiju, to je najispravnije. Tada elektroda daje svoje maksimalne performanse.

A gore ti je vec receno, oznaka na kutiji elektrode se ondosi na povezivanje elektrode. AKo na kutiji pise +, onda elektroda ide na plus, a masa na -.

Postoje razlozi zasto neko stavlja klasicnu bazicnu elektrodu na minus, medjutim ti nemoj. To rade ljudi koji su svesni sta rade, znaju da gube nesto ali zato nesto drugo dobiju na drugoj strani. U Nemackoj, na nekim brodskim dizalicama, sam video coveka da to radi, na vrlo odgovornom spoju. Objasnjenje je u principu "od dva zla biram manje" i kada saslusas problem moras da se slozis da je to u tom momentu najbolji izbor...
A "zlo", kada se stavi bazicna na - pol jeste da je luk manje stabilan, manja je penetracija a zbog nestabilnosti luka, dolazi do upumpavanja kiseonika u tecni metal, doduse neki mali % ali i to je dovoljno da se oslabi metal vara, pre svega udarna zilavost.
Ispitivanje bi pokazalo tacne rezultate u svakom konkretnom slucaju, ali grubo mozemo pretpostaviti da ako bazicna elektroda ima garantovanu zilavost na -40C na + polu, kada se stavi na -pol, zbog onog upumpavanja kiseonika (i mozda azota) garantovana zilavost ce biti tek na -20C. Verovatno ce pasti i cvrstoca za neki procenat.

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Thu, 11/12/2014 - 16:38
Hvala obojici na brzim i
#4 [5]
Millos
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Hvala obojici na brzim i kvalitetnim odgovorima. Postupacu u skladu sa preporukom proizvodjaca, naravno. Dilema razresena.

P.S. Iz radoznalosti > naveli ste sta su negativne strane stavljanja bazicne na minus, a koje su pozitivne?

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[1] http://www.samsvojmajstor.com/portal/forums/uradi-sam/bravarija/polaritet-elektrode-na-rel-inverteru#comment-406652
[2] http://www.samsvojmajstor.com/portal/users/branimir
[3] http://www.samsvojmajstor.com/portal/forums/uradi-sam/bravarija/polaritet-elektrode-na-rel-inverteru#comment-406659
[4] http://www.samsvojmajstor.com/portal/users/zorani
[5] http://www.samsvojmajstor.com/portal/forums/uradi-sam/bravarija/polaritet-elektrode-na-rel-inverteru#comment-406664
[6] http://www.samsvojmajstor.com/portal/users/millos
[7] http://www.samsvojmajstor.com/portal/forums/uradi-sam/bravarija