Puas Hloov Tau Qhov Tam Sim No ntawm RDJ2 Series Thermal Relay Tau Dawb? Demystify Motor Protection Setting Logic thiab Overload Threshold

Hauv kev tswj kev lag luam txhua hnub, kev saib xyuas cov khoom siv thiab kev teeb tsa hluav taws xob, muaj kev ua haujlwm tsis raug: ntau tus neeg ua haujlwm tig lub pob qhov hloov kho tam sim no ntawm lub thermal relay raws li qhov xav tau. Lawv tsuas xav tias tig lub tam sim no kom tsis txhob tripping thiab tig qis ua rau kev tiv thaiv muaj kev nkag siab ntau dua, kho qhov teeb tsa tam sim no ua lub qhov hloov kho tau nrog kev ywj pheej random.

Tshwj xeeb tshaj yog thaum muab kev pabRDJ2 series thermal relay — ib qho cuab yeej tiv thaiv lub cev muaj zog uas siv tau dav thiab muaj kev ntsuas siab hauv kev lag luam — qhov kev hloov kho tsis raws li kev paub dhau los no yuav ua rau muaj teeb meem me me xws li kev ua yuam kev ntau zaus thiab kev kaw cov kab ntau lawm. Hauv cov xwm txheej hnyav, nws yuav hlawv cov xov hlau ntawm lub cev muaj zog, ua rau cov khoom siv puas tsuaj, thiab txawm tias coj kev phom sij rau kev nyab xeeb hluav taws xob.

Niaj hnub no, siv People Electric RDJ2 series thermal relay ua lub hauv paus, peb yuav piav qhia kom meej tias vim li cas qhov teeb tsa tam sim no ntawm lub thermal relay tsis tuaj yeem hloov kho tau raws li qhov xav tau, tshuaj xyuas cov kev teeb tsa kev tshaj lij ntawm kev tiv thaiv lub cev muaj zog, thiab coj koj kom teeb tsa qhov overload threshold kom raug rau kev ua haujlwm ntawm cov khoom siv nyab xeeb thiab ruaj khov.

1. Ua Kom Tawg Qhov Kev Nkag Siab Yuam Kev: 3 Qhov Kev Pheej Hmoo Zais Cia ntawm Kev Kho Qhov Tam Sim No Thermal Relay

Cov neeg siv feem ntau muaj kev nkag siab yuam kev txog qhovRDJ2 thermal relay: nws tsis yog qhov hloov pauv yooj yim tam sim no, tab sis yogntsuas kub rau cov cav tov hauv kev lag luam. Qhov teeb tsa tam sim no (Ir) yog qhov tseem ceeb tiv thaiv qhov tseem ceeb, thiab txhua qhov ntsuas tau calibrated nruj me ntsis raws li cov qauv hluav taws xob thoob ntiaj teb thiab cov yam ntxwv ntawm lub cev muaj zog. Kev kho qhov muag tsis pom kev yuav ua rau muaj peb qhov kev pheej hmoo loj hauv qab no:

⭕️Tam Sim No Siab Dhau → Kev Tiv Thaiv Lub Cev Muaj Zog Tsis Ua Haujlwm Tag Nrho

Yog tias koj kho lub pob qhov rooj rau qhov tam sim no siab dhau, nws zoo ib yam li tshem tawm lub hau tiv thaiv kev nyab xeeb rau lub cev muaj zog. Thaum lub cev muaj zog ntsib kev thauj khoom ntau dhau, xauv lub rotor lossis poob theem, lub voj voog tam sim no nce siab heev, tab sis RDJ2 thermal relay tsis ua haujlwm raws sijhawm. Lub bimetallic strip sab hauv tsis tuaj yeem ua rau lub tshuab tripping, ua rau muaj kev kub ntxhov ntawm cov windings ntawm lub cev muaj zog, laus ntawm cov txheej rwb thaiv tsev, thiab lub cev muaj zog hlawv tas mus li.

⭕️Tam Sim No Tsis Muaj Zog Dhau → FFalse Tripping & Kev Cuam Tshuam Ntau Lawm

Yog tias qhov teeb tsa tam sim no raug kho qis dhau, lub thermal relay yuav mus ua ntej txawm tias thaum lub cev muaj zog pib thiab hloov pauv ib ntus. Kev pib-nres ntawm cov kiv cua, cov twj tso dej, cov khoom siv thiab lwm yam khoom siv yuav tsis tsuas yog cuam tshuam rau lub sijhawm tsim khoom xwb tab sis kuj ua rau cov contactors, circuit breakers thiab lwm yam khoom siv hluav taws xob hnav thiab laus sai dua.

⭕️Tsis quav ntsej txog Kev Tiv Thaiv Kev Poob Qib → Qhov Ua Txhaum Me Me Hloov Mus Ua Qhov Xwm Txheej Loj

Kev ua haujlwm poob theem ntawm cov cav peb-theem muaj qhov tsis sib npaug ntawm cov tam sim no siab heev, uas yog qhov ua rau lub cev muaj zog hlawv tawm. Yog tias qhov teeb tsa tam sim no tsis phim qhov tam sim no ntsuas ntawm lub cev muaj zog, qhov ua haujlwm tiv thaiv kev poob theem ntawm RDJ2 thermal relay yuav tsis ua haujlwm li qub. Nws tsis tuaj yeem ua haujlwm sai thaum ib theem raug txiav tawm, thaum kawg ua rau ob-theem overload thiab lub cev muaj zog puas tsuaj.

Hauv ntej: Qhov teeb tsa tam sim no ntawm RDJ2 thermal relay yog qhov kev nyab xeeb calibrated kev tshaj lij phim nrog lub cev muaj zog ntsuas tam sim no, cov yam ntxwv ntawm kev thauj khoom thiab cov xwm txheej ib puag ncig, thiab yuav tsum tsis txhob hloov kho random los ntawm kev paub dhau los.

2. Lub Ntsiab Cai Ua Haujlwm ntawm RDJ2 Thermal Relay: Vim Li Cas Yuav Tsum Muaj Kev Teeb Tsa Nruj

Yuav kom nkag siab txog qhov tseem ceeb ntawm qhov teeb tsa tam sim no, peb yuav tsum xub paub txog lub hauv paus ntsiab lus ua haujlwm ntawm RDJ2 series thermal relay.

Cov koob RDJ2 (hom LR2) yog ib qhobimetallic strip thermal overload relay, haum rau AC 50Hz/60Hz, qhov ntsuas hluav taws xob ua haujlwm txog li 660V thiab qhov ntsuas tam sim no ntawm 0.10A txog 630A. Nws yog tsim tshwj xeeb rau kev tiv thaiv lub cev muaj zog overload thiab kev tiv thaiv kev poob theem, ua raws li IEC60947-4-1 tus qauv thoob ntiaj teb.

Nws txoj kev tiv thaiv kev tshaj lij ua raws li kev tsim qauv kev lag luam nruj heev:

1. Txoj Cai ntawm Bimetallic Strip Tripping: Cov hluav taws xob circuit ntws los ntawm lub cua sov, khoov lub bimetallic strip los ntawm cua sov, thawb lub tshuab tripping qauv kom txiav tawm lub tswj circuit thiab nres lub cev muaj zog ntawm contactor.

2. Kev Them Nyiaj Kub Ib puag ncig: Tswj kev tiv thaiv kom raug raws li qhov kub thiab txias ntawm -5 ℃ txog +40 ℃, tsis muaj kev cuam tshuam ntawm qhov kub thiab txias.

3. Kev Tiv Thaiv Kev Poob Qib Precision: Txheeb xyuas qhov tsis sib npaug ntawm peb theem tam sim no sai sai thiab ua rau muaj kev tiv thaiv txhim khu kev qha.

4. Hom Pib Dua Ob Zaug: Txhawb kev hloov ntawm kev pib dua tsis siv neeg thiab kev pib dua tes kom hloov kho tau rau ntau yam xwm txheej txij nkawm hauv tsev.

5. Khawm Kuaj & Nres: Kev tshuaj xyuas tiag tiag ntawm kev ywj pheej ntawm kev hla mus los, nruab nrog lub hau tiv thaiv hluav taws xob thiab lub cuab yeej xauv tsis ua haujlwm rau kev ua haujlwm zoo dua.

Lub hauv paus ntawm tag nrho cov kev tiv thaiv system yog nyob rau hauvteeb tsa tam sim no — nws txiav txim siab qhov pib tam sim no thiab lub sijhawm ua haujlwm ntawm bimetallic strip deformation. Txhua qhov kev hloov pauv ntawm qhov chaw teeb tsa tus qauv yuav ua rau tag nrho lub cev muaj zog tiv thaiv tsis ua haujlwm.

3. RDJ2 Thermal Relay Setting Current Breakdown: Qauv, Qhov Kev Kho Kom Zoo & Phau Ntawv Qhia Sib Xws

Cov koob RDJ2 suav nrog tsib tus qauv tseem ceeb:RDJ2-25, RDJ2-36, RDJ2-93, RDJ2-200, RDJ2-630, nrog rau qhov teeb tsa tam sim no ntawm 0.1A txog 630A. Nws phim zoo kawg nkaus rau cov cav me me uas muaj zog rau cov cav lag luam muaj zog, thiab txhua tus qauv muaj qhov kev hloov kho uas tau teeb tsa kom raug.

⭕️Qauv Tseem Ceeb & Tus Qauv Teeb Tsa Tam Sim No

Qauv Khoom	Tam sim no ntsuas	Teem Qhov Kev Hloov Kho Tam Sim No	Sib phim AC Contactor
RDJ2-25	25A	0.1 ~ 0.16A / 0.16 ~ 0.25A / ... / 17 ~ 25A	CJX2-09~32
RDJ2-36	36A	23~32A / 28~36A	CJX2-32
RDJ2-93	93A	23 ~ 32A / 30 ~ 40A / ... / 80 ~ 93A	CJX2-40~95
RDJ2-200	200A	80~125A / 100~160A / 125~200A	CJX2-115~225
RDJ2-630	630A	160~250A / ... / 400~630A	CJX2-185~630

⭕️ Chav Kawm Tripping & Cov Yam Ntxim Saib Xyuas Overload Threshold

Lub RDJ2 thermal relay ua raws li lub teb chaws thiab IEC cov qauv nrog cov chav kawm tripping ruaj khov:Chav Kawm 10A rau RDJ2-25/36thiabChav Kawm 10 rau RDJ2-93/200/630Qhov overload threshold thiab lub sijhawm ua haujlwm yog lub Hoobkas calibrated thiab tsis tuaj yeem hloov pauv arbitrarily:

● 1.05 zaug teeb tsa tam sim no: Tsis muaj kev ua haujlwm hauv ntau tshaj 2 teev nyob rau hauv lub xeev txias kom ntseeg tau tias lub sijhawm ua haujlwm ib txwm nyob rau hauv qhov ntsuas load.

● 1.2 zaug teeb tsa tam sim no: Yuav tsum mus ncig tsis pub dhau 2 teev nyob rau hauv lub xeev kub rau kev tiv thaiv kev overload tseem ceeb.

● 1.5 zaug teeb tsa tam sim no: Mus ncig tsis pub dhau 2 feeb (Chav Kawm 10A) / 4 feeb (Chav Kawm 10) rau kev tiv thaiv sai tiv thaiv kev thauj khoom nruab nrab.

● 7.2 zaug teeb tsa tam sim no: Mus ncig hauv 2 ~ 10 vib nas this thaum txias los tiv thaiv lub cev muaj zog ntawm kev xauv rotor thiab kev pheej hmoo ua ntej luv luv.

Rau qhov ua txhaum ntawm peb theem poob (tam sim no tsis sib npaug), RDJ2 raug teeb tsa nrog qhov txwv tshwj xeeb: nws yuav mus tsis pub dhau 2 teev thaum ob theem nqa tam sim no thiab ib theem qhib-circuited, zam kom tsis txhob muaj kev kub hnyiab ntawm lub cev muaj zog los ntawm kev poob theem.

Txhua yam kev teeb tsa yog tsim los kom phim qhov nkhaus ntawm lub cev muaj zog thermal endurance. Kev teeb tsa tam sim no tsis raug yuav ua rau lub sijhawm ua haujlwm tsis raug thiab poob kev ua haujlwm tiv thaiv.

4. Kev Teeb Tsa Tiv Thaiv Lub Cev Muaj Zog: Cov Cai Sib Tw Txheem rau RDJ2 Thermal Relay

Vim tias kev hloov kho random tsis raug tso cai, yuav ua li cas teeb tsa qhov tam sim no zoo tshaj plaws rau RDJ2 kom raug? Txoj cai tseem ceeb yog: Siv lub cev muaj zog ntsuas tam sim no ua tus qauv, thiab ua qhov kev hloov kho zoo raws li hom thauj khoom thiab cov xwm txheej ib puag ncig, ua raws li GB50055-2011 Code rau Kev Tsim Hluav Taws Xob ntawm General Electric Equipment.

⭕️ Cov Ntsiab Cai Teeb Tsa Thoob Ntiaj Teb rau Txhua Qhov Xwm Txheej Kev Siv

● Tus qauv thauj khoom (kiv cua, twj dej, conveyors): Teeb Tam Sim No = Lub Cev Muaj Zog Rated Tam Sim No × 0.95~1.05

● Lub nra hnyav thaum pib ua haujlwm (cov tshuab tsoo, cov tshuab sib tsoo pob, cov tshuab stamping): Kev teeb tsa tam sim no = Lub cev muaj zog ntsuas tam sim no × 1.1~1.2 kom tsis txhob muaj kev cuam tshuam cuav los ntawm kev pib ua haujlwm tam sim no

● Cov khoom siv pib-nres nquag (cranes, elevators): Teem qhov tam sim no rau 1.1 npaug ntawm qhov tam sim no ntsuas nrog RDJ2 qhov kub thiab txias kom tiv thaiv kev sib sau ua ke ntawm cov cua sov tsis raug

⭕️ Cov Kauj Ruam Qhia Txog Kev Teeb tsa rau RDJ2 Thermal Relay

1.Tshawb xyuas daim ntawv teev npe ntawm lub cev muaj zog thiab sau cialub cev muaj zog ntsuas tam sim no (Hauv)ua qhov kev teeb tsa benchmark xwb.

2.Xaiv tus qauv RDJ2 kom raug kom ntseeg tau tias qhov kev hloov kho ntawm relay npog tag nrho cov hluav taws xob ntsuas ntawm lub cev muaj zog.

3.Kho lub pob qhov rooj thiab teeb tsa tus xub nrog tus nqi tam sim no uas tau teeb tsa, tom qab ntawd xauv lub cuab yeej tiv thaiv kev ua haujlwm tsis raug.

4.Nias lub pob TEST ntawm RDJ2 vaj huam sib luag kom paub tseeb tias qhov kev hloov pauv ntawm kev hla mus los.

5.Xaiv qhov pib dua tshiab lossis pib dua tes raws li qhov xav tau kev ua haujlwm thiab kev saib xyuas tiag tiag.

⭕️Kev Kho Kom Zoo Dua Qhov Kub thiab Txias (Qhov Zoo Tshaj Plaws ntawm RDJ2)

Nruab nrog kev them nyiaj kub uas ua tiav, RDJ2 hloov kho rau -5 ℃ ~ + 40 ℃ ib puag ncig ua haujlwm:

● Kub siab tshaj 35℃: Kho qhov teeb tsa tam sim no kom txog 0.9 npaug ntawm qhov tam sim no uas lub cev muaj zog ntsuas

● Qhov kub qis dua 0℃: Kho qhov teeb tsa tam sim no txog li 1.1 npaug ntawm lub cev muaj zog ntsuas tam sim no

● Qhov siab tshaj 2000m nrog rau qhov chaw tsis muaj corrosive thiab tsis muaj plua plav: Teem raws li tus qauv ntsuas tus nqi ncaj qha