I. Kev Npaj thiab Txheej Txheem Tsim
Qhia meej txog Motor Parameters thiab Requirements
Txiav txim siab qhov tseem ceeb ntawm lub cev muaj zog: qhov hluav taws xob (xws li peb-theem 380V / ib zaug-theem 220V), lub zog, ntsuas tam sim no, pib txoj kev (ncaj- ntawm- kab pib / hnub qub- delta pib / qhov sib txawv zaus pib), thiab tswj kev ua haujlwm ceev (rau pem hauv ntej / rov qab nrawm).
Txhais daim ntawv thov scenarios: piv txwv li, rhiav kev sib dhos kab motors, conveyor khoom motors. Xav txog kev tiv thaiv overload, luv - tiv thaiv Circuit Court, thiab IP ntsuam xyuas (waterproof thiab dustproof theem).
Xaiv Circuit Topology thiab Tswj hom
Yooj yim pib- nres Circuit Court: Haum rau qis- lub zog tsav (tsawg dua lossis sib npaug li 7.5kW). Tsim los ntawm Circuit Court breakers, contactors, thermal relays, thiab cov nyees khawm, nws paub lub cev muaj zog pib, nres, thiab kev tiv thaiv overload.
Forward/reverse rotation tswj Circuit Court: Siv ob pawg ntawm contactors nrog kev cuam tshuam kev ua haujlwm los tiv thaiv theem - mus rau -theem luv Circuit Court, ua kom lub cev muaj zog rau pem hauv ntej thiab rov qab hloov.
Hnub qub-delta txo-voltage pib circuit: Haum rau siab - lub zog tsav (Ntau dua lossis sib npaug rau 15kW). Nws txo qhov pib tam sim no los tiv thaiv daim phiaj hluav taws xob thiab lub cev muaj zog.
Hloov pauv zaus tswj Circuit Court: Ua tiav kev tswj xyuas lub cev muaj zog los ntawm kev hloov pauv zaus, muaj lub zog txuag thiab kev tswj xyuas siab. Zoo tagnrho rau kev ceev- kho qhov xwm txheej (piv txwv li, kiv cua, twj tso kua dej).
Kev xaiv cov khoom siv hluav taws xob
| Hom Lub Npe | Kev xaiv hauv paus | Piv txwv |
|---|---|---|
| Circuit Breaker (QF) | Rated tam sim no yog 1.2-1.5 npaug ntawm lub cev muaj zog ntsuas tam sim no; kev tawg muaj peev xwm sib npaug ntawm daim phiaj hluav taws xob | Moulded Case Circuit Breaker (MCCB) / Miniature Circuit Breaker (MCB) |
| Contactor (KM) | Rated voltage phim lub hwj chim mov; rated tam sim no Ntau tshaj los yog sib npaug rau lub cev muaj zog rated tam sim no | AC contactor (piv txwv li, CJX2 series) |
| Thermal Relay (FR) | Teem caij tam sim no=lub cev muaj zog ntsuas tam sim no, paub txog kev tiv thaiv overload | JR20 series thermal relay |
| Khawm / Hloov | Tswj Circuit Court voltage (feem ntau AC220V / DC24V); xaiv ib txwm qhib (pib) / ib txwm kaw (nres) hom | LA38 series khawm |
| Hlau | Tam sim no - nqa peev ntau dua lossis sib npaug rau lub cev muaj zog tam sim no; xav txog txoj kev tso (nto mounting / conduit installation) | Copper tub ntxhais cables (BV / BVR). Lub zog loj dua yuav tsum muaj cov kab hlau loj dua |
| Kev tiv thaiv Cheebtsam | Fuses (luv- tiv thaiv Circuit Court), surge protectors (xov xwm tiv thaiv) | RT18 series fuses |
II. Kos duab hluav taws xob Schematic thiab Wiring Diagram
Kos duab hluav taws xob Schematic
Paub qhov txawv ntawm covlub ntsiab Circuit Court(lub hwj chim mov → Circuit Court breaker → contactor → thermal relay → motor) thiab covtswj Circuit Court(khawm → contactor coil → thermal relay feem ntau kaw kev sib cuag).
Txais yuav lub teb chaws tus qauv hluav taws xob cov cim (xws li GB/T 4728), kos cov qauv qauv, tsis muaj, thiab cov lej davhlau ya nyob twg los xyuas kom meej cov logic (piv txwv li, kev sib cuam tshuam thiab tus kheej -lock circuits).
Piv txwv (logic of simple start-stop circuit for three-the motors):
Nias lub pob pib → contactor coil energizes → main contacts close → motor runs.
Contactor auxiliary ib txwm qhib hu rau tus kheej - xauv → lub cev muaj zog txuas ntxiv mus tom qab tso lub pob.
Nias lub khawm nres / thermal relay overload action → coil de-energizes → motor nres.
Kos duab kab kos
Kos raws li cov qauv tsim tiag tiag, kos cov kab hauv kab, kab kab uas hla, thiab cov lej thaiv cov lej kom yooj yim ntawm - qhov chaw thaiv.
Cov hlau rau lub hauv paus tseem ceeb yuav tsum yog tuab, thaum cov hlau nyias nyias (piv txwv li, 1.5mm²) tuaj yeem siv rau kev tswj xyuas Circuit Court.
III. Nyob rau ntawm -Tshooj Xov Tooj thiab Sib Tham
Cov kab mob Specifications
Tso lub ntsiab Circuit Court thiab tswj Circuit Court nyias kom tsis txhob cuam tshuam; kom siab -voltage circuits (380V/220V) deb ntawm qis-voltage circuits (piv txwv li, zaus converter kab sib txuas lus).
Sau cov xov hlau kom meej meej, xyuas kom ruaj ntseg thaiv thaiv kev sib txuas yam tsis muaj xoob; tuav ib tug nruab nrab hlau dabtsi yog khoov vojvoog kom tiv thaiv kev puas tsuaj ntawm rwb thaiv tsev.
Xaim lub thawv rau lub cev muaj zog raws li daim ntawv teev npe (piv txwv li, hnub qub Y / delta △ txoj kev sib txuas). Kev xaim tsis raug yuav hlawv lub cev muaj zog.
Cov kauj ruam
Txhim kho cov khoom siv hluav taws xob: Nruab cov hluav taws xob hluav taws xob, cov contactors, thermal relays, thiab lwm yam, ntawm cov lus qhia hauv lub thawv xa khoom.
Main circuit wiring: Fais fab input → Circuit Court breaker → contactor main contact → thermal relay heating elements → motor terminals.
Tswj Circuit Court thaiv: Tswj fais fab mov → nres khawm (ib txwm kaw) → khawm pib (ib txwm qhib) → contactor coil → thermal relay nquag kaw → tswj fais fab mov tsis zoo ncej.
Kev tiv thaiv hauv av: Txhim khu kev ntseeg hauv pem teb lub cev muaj zog thiab lub thawv ntim khoom vaj tsev (PE xaim), nrog rau kev tiv thaiv hauv av tsawg dua los yog sib npaug ntawm 4Ω los tiv thaiv hluav taws xob vim kev xau.
IV. Kev Ua Haujlwm thiab Kev Txais
Ua ntej-Kev tshuaj xyuas fais fab
Siv multimeter los ntsuas qhov rwb thaiv tsev ntawm lub ntsiab Circuit Court (Ntau dua lossis sib npaug ntawm 1MΩ) txhawm rau tiv thaiv luv luv; tshawb xyuas seb cov xaim puas zoo ib yam nrog cov duab kos, thiab seb puas muaj cov kab hluav taws xob tsis raug lossis ploj lawm.
Manually sim seb tus contactor ua haujlwm yooj yim, thiab seb lub thermal relay teeb tam sim no puas yog.
Tsis muaj -load Commissioning
Disconnect lub cev muaj zog los ntawm lub load, nias lub pob pib tom qab lub hwj chim rau, saib seb lub cev muaj zog rotation kev taw qhia thiab ceev yog zoo li qub, thiab xyuas seb qhov txawv txav los yog overheating.
Ntsuam xyuas seb qhov nres thiab qhov chaw nres tsheb thaum muaj xwm txheej ceev puas ntseeg tau, thiab seb lub thermal relay overload tiv thaiv puas siv tau (luv luv -circuit lub thermal relay hu rau simulate overload).
Load Commissioning
Txuas lub load thiab maj mam nce lub load; saib seb lub cev muaj zog tam sim no nyob rau hauv qhov ntsuas qhov ntsuas thiab seb qhov ntsuas kub li cas yog qhov qub.
Sau cov kev khiav hauj lwm tsis (voltage, tam sim no, kub) los xyuas kom meej lub Circuit Court raws li qhov yuav tsum tau ntau lawm.
V. Cov Lus Qhia Txog Kev Nyab Xeeb thiab Kev Tu
Tag nrho cov xaim thiab commissioning ua haujlwm yuav tsum tau ua nrog lub hwj chim tawm. Dai lub cim "No Switching On" los tiv thaiv hluav taws xob poob siab.
Lub Circuit Court yuav tsum ua raws li lub teb chaws hluav taws xob installation specifications (piv txwv li, GB 50254Code rau Kev Tsim Kho thiab Kev Txais Kev Txhim Kho Hluav Taws Xob ntawm Tsawg-voltage Electrical Apparatus).
Tsis tu ncua xyuas seb cov xov hlau thiab cov khoom puas muaj kev laus los yog xoob, thiab hloov cov khoom puas hauv lub sijhawm kom tsis txhob muaj qhov yuam kev.
