Hwj huam zoo
Ntau yam teeb meem yuav ua los ntawm cov hwjchim tsis zoo, tshwj xeeb tshaj yog nyob rau hnub no txoj microelectronics. Yav tag los, hluav taws xob disturbances rau mechanical khoom mus unnoticed. Tam sim no, tsis tas li ntawd, hluav taws xob disturbances yuav chim hnub no lub high-tech khoom haujlwm loj heev.
Kwv yees li ntawm 80 feem pua ntawm cov hwjchim zoo keeb kwm ntawm tus neeg sab nrauv hais txog lub meter. Nws tseem ceeb heev rau cov tswv tsev, tswj, designers thiab lwm cov neeg siv high-tech cov neeg siv to taub thiab kawm kom tsis txhob muaj hwj huam disturbances. Ntsuam xyuas cov nram qab no rau ib tug general overview ntawm cov hwjchim zoo:
Thaj chaw thiab me coj mus muag: Hwj huam zoo nyob rau hauv koj lub tsev (PDF)
Coj mus muag/industrial: To taub thiab tsis txhob coj mus muag disturbances (PDF)
Hwj huam zoo thiab voltage stability
Nws yog ib qho zoo rau koj cov hluav taws xob voltage los sib txawv nyob rau hauv cov ntaub ntawv txwv. Cov fluctuations no yuav ua tau los ntawm lub lag luam ntawm lub chaw tso dej fais fab tuag thiab tis lawv, ntawm lwm yam. Cov kev hloov no yuav tsis ua teeb meem rau koj cov khoom los yog tej chaw. Tej yam khoom siv hauv hluav taws xob tej zaum yuav rhiab heev rau cov fluctuations, tsis tas li ntawd, uas tej zaum yuav ua teeb meem.
Koj yog lub luag hauj lwm los muab tej li yuav tsum tau tiv thaiv koj rhiab khoom uas tsis tau khiav lag luam nyob rau hauv lub voltage variations ntawm peb cov kev pab cuam hluav taws xob. Hluav taws xob txoj cai 2, rau cov ntaub ntawv nrog rau California Public Utilities Commission, specifies cov variations. PG& E tsis yog liable rau koj cov khoom los yog lwm yam kev puas tsuaj los ntawm variations nyob rau hauv qhov kev pab cuam voltage uas nyob rau hauv txoj cai no.
Ntsuam xyuas hluav taws xob txoj cai 2 (PDF)
Hwj huam zoo
Hwj huam zoo teeb meem arise thaum lawv incompatibility tshwm sim ntawm lub HWJ HUAM AC thiab cov khoom. Xws li qhov zoo tshaj ntawm cov AC distribution lawv los yog cov AC voltage yuav ua rau muaj teeb meem zoo. Yuav kom nrhiav tau cov tshuaj los yog tov, nws tseem ceeb heev uas yuav tau tshawb xyuas cov teeb meem kom yog. Ib txhia raug fais fab zoo yog:
- Txheej txheem yuam kev
- Soft failures xws li lub computer reset los yog lockout
- Nyuaj tsis ua hauj lwm ntawm electronic components
- Nuisance tripping nyob rau hauv cov khoom tswj cov khoom
Analyze fais fab zoo
Thaum analyzing ib tug neeg hwj huam zoo, nws tseem ceeb heev uas yuav tau khaws ib tug teeb meem log. Qhov no yuav pab txuas qhov teeb meem rau lwm yam txheej xwm xws li khoom ua haujlwm los yog txawm tias cov teeb meem. Xyuas SEB PG&E tus "Checklist los daws teeb meem rau rhiab khoom" pab qhia thiab mitigate fais fab teeb meem rau rhiab khoom.
Cov checklist muaj lus nug txog koj yuav tsum teb nyob rau hauv koj cov teeb meem log kom paub tseeb tias ua tau thiab tov. Thaum koj twb kuaj tau qhov teeb meem (e.g., voltage sags, outages, impulses, harmonics, hluav taws xob nrov, voltage thiab tam sim no imbalances, cuam tshuam los yog wiring thiab grounding, etc.) kom yog, koj yuav tiv thaiv tau kev ntsuas los mitigate qhov teeb meem. Tej zaum cov tshuaj yuav yooj yim li kho koj cov khoom kom nws rhiab rhiab rau cov hwjchim variations. Nco ntsoov kho nyob rau hauv ib tug txiv neej uas tsis void tej warranties.
Download cov checklist los daws teeb meem rau rhiab khoom (PDF)
Hwj huam Notes
Peb PG& E hwj huam Notes rau hauv qab no tej zaum yuav pab koj paub thiab daws tau koj cov teeb meem zoo los yog kev txhawj xeeb.
- Kawm txog lub hwj huam harmonics, lawv tej teeb meem thiab cov tshuaj.
Download Power System Harmonics (PDF) - Kawm txog voltage ntau yam, hwj huam components, hluav taws xob disturbances thiab ntau dua.
Download To Taub Fais Fab Characteristics (PDF) - Ntsuam xyuas peb lub computer kev lag luam guideline rau cov ntaub ntawv hluav taws xob tis.
Download Voltage Tolerance Boundary (PDF) - Kawm seb yuav ua li cas sags, lawv tej yam thiab tej zaum yuav tau tov.
Download Short Duration Voltage Sags yuav ua rau cuam tshuam kev thauj (PDF) - Kawm kom tiv thaiv tau tej chaw, khoom siv los yog ib tug neeg twg.
Download Lightning protection (PDF) - Ntsuam xyuas cov yooj yim ntawm telecommunication cuam tshuam.
Download Telecommunications Interference (PDF) - Kawm cov kev kawm uas av tsim thiab muaj feem xyuam rau NEC grounding. Kev taw qhia ntxiv yog hais dhau lub NEC yuav tsum tsim kom muaj kev kawm ntau yam uas rhiab electronic khoom hauv pem teb.
Download Kev Kawm Av thiab Wiring rau rhiab khoom (PDF)
- Ntsuam xyuas ib qho kev piav txog kev khiav hauj lwm thiab kawm txog nuisance tripping teeb meem.
Download Desensitizing Electric Motor Controls (PDF) - Kawm seb lub hwj huam hloov yog xam thiab thaum twg nws yuav tsim nyog los kho cov lus.
Download Economics ntawm cov hwjchim Correction nyob rau hauv cov chaw loj, >400kW (PDF) - Kawm txog voltage thiab tam sim no ntsuas cov-sinusoidal AC fais fab.
Download Voltage thiab tam sim no ntsuas cov-Sinusoidal AC hwj huam (PDF) - No Hwj Huam Note tham txog qhib-theem kev tiv thaiv txog tej teeb meem rau motors.
Download Qhib-theem kev tiv thaiv teeb meem rau Motors (PDF)
- Kawm seb yuav xaiv ib qho transient voltage surge suppressor rau koj xav tau.
Download Surge Suppressors (PDF) - Kawm seb yuav xaiv ib UPS rau me me, standalone, ib zaug xwb computer applications.
Download Uninterruptible Power Mov (PDF) - Daim ntawv ceeb toom no tsom rua cov tshuaj los voltage sags.
Download Voltage Sag caij-los ntawm Mitigation hauv Sequence los ua nqi (PDF)
- Kawm seb yuav ua li cas thiaj li yuav siv tau kab reactors los yog DC txuas reactors rau variable zaus drives (VFDs).
Download Cov Ntaub Ntawv Ntawm Kab Reactors los yog DC Link Reactors rau Variable-Frequency Drives (PDF) - Muas ib VFD? Koj yuav qhia tau kom lub caij-los ntawm kev xaiv, tiam sis koj yuav tsum tau kev pab tsav tsheb mus siv lawv.
Download Methods rau Mitigating Voltage Sag tej yam rau Variable-Frequency Drives (PDF) - Kawm yooj yim precautions koj yuav coj kom tsis txhob premature tsis ua hauj lwm hauv koj drives.
Download Nyhuv ntawm Variable-Frequency Drive Output Voltage rau Motor Insulation (PDF) - Minimize EMI teeb meem los ntawm separating thiab shielding hwj huam conductors los ntawm kev tswj cov cwjpwm.
Download solutions rau EMI teeb meem ntawm kev zov me nyuam ntawm Variable-Frequency Drives (PDF)
Hwj huam zoo Bulletins
PG& E lub hwj huam zoo Bulletins kuj yuav pab koj paub thiab daws tau koj cov teeb meem zoo los yog kev txhawj xeeb.
Ib lub thawv dub yog ib tug ntaus ntawv los yog lawv nrog lwm wires uas supposedly yuav ua tau ib yam dab tsi beneficial. Muaj ntau zaus, yog dab tsi nyob rau hauv lub thawv yog ib tug tsis. Ntau li thiab lub nruab rau lub lag luam thov kom lub hwj huam zoo los yog reliability ntawm hluav taws xob. Ib txhia li kuj thov txuag zog. Feem ntau cov neeg pab leg ntaubntawv yuav tsis tseeb los yog tsis tau qhia raws li cov qauv kev lag luam. Kawm ntxiv nyob rau hauv peb Bulletin rau cov kawm.
Koj puas tau raug tom thaum koj kov ib hlau fixture nyob ze ib pas dej ua luam dej los yog thaum koj kov lub showerhead fixture hauv koj lub tsev? Thiab rau tej teb, koj tau pom ib txo rau mis nyuj ntau lawm? Cov no tej zaum yuav yog cov tsos mob ntawm tus mob stray voltage. Kawm ntxiv nyob rau hauv peb Bulletin rau cov kawm.
Interruptions hauv manufacturing txheej txheem yuav kim heev. Lawv yuav ua rau lab tus las nyiaj poob nyiaj ib hnub twg. Tej interruptions yuav tau them rau voltage sag txheej xwm, uas yog qhov tseem ceeb tshaj plaws fais fab txojkev muaj ntau industrial cov neeg muas zaub, tshwj xeeb tshaj yog cov neeg uas muaj ib txoj kev. Kawm ntxiv nyob rau hauv peb Bulletin rau cov kawm.
Cov chaw muab kev pab cuam ntau ntxiv
Yog xav paub ntxiv
Yog koj muaj lus nug los yog xav tau ntaub ntawv ntxiv, email peb ntawm PowerQualityWeb@pge.com.