Technical Principles Of Busbar Protection nyob rau hauv CNC Busbar Processing Tshuab

CNC busbar ua tshuab muaj peb qhov ua haujlwm: xuas nrig ntaus, txiav thiab folding. Nws lub luag haujlwm tseem ceeb yog ua cov tooj liab thiab txhuas busbars ntawm txawv specifications. Nws tsuas yog tsim nyog los siv cov txheej txheem sib txuas los txiav thiab txiav tooj liab thiab txhuas tuav tau yooj yim thiab nrawm. Punching (ib puag ncig lub qhov, lub duav-zoo li lub qhov), tiaj bending, ntsug dabtsi yog khoov, embossing, flattening, twisting, crimping cable pob qij txha thiab lwm yam sib txawv ua.
Ua ntej: Kev xaiv cov neeg sib txuas rau kev sib txuas hluav taws xob lossis kev sib cais hloov qhov ntsuas hluav taws xob.
Lub Circuit Court breaker lossis rho tawm hloov pauv tsis tuaj yeem siv rov pib dua relay rau lub kaw lus kaw, thiab yuav tsum tau siv ncaj qha rau kev sib cuag ntawm lub Circuit Court breaker lossis cais hloov; kev sib tiv tauj ntawm kev sib cais riam hloov rau tsheb npav sib txawv CT switching muaj cov yam ntxwv tshwj xeeb rau kev ua haujlwm ib txwm muaj thiab txhim khu kev lag luam ntawm kev tiv thaiv tsheb npav sib txawv. Qhov tseem ceeb.
Thib ob: Cov kev xaiv xaiv rau tam sim no transformers.
Niaj hnub no, electromagnetic tam sim no transformer yog ib tug hlau core tivthaiv. Nws yog ib qho nonlinear keeb. Thaum cov thawj tam sim no loj, thaum thawj tam sim no muaj ib tug loj DC tivthaiv, thaum cov hlau core muaj ib tug loj residual magnetism, thiab thaum lub thib ob load kuj loj, nws qhov chaw khiav hauj lwm yuav nkag mus rau hauv lub saturation ib feem ntawm lub magnetization nkhaus raws li tus tam sim no transformer saturation criterion teeb tsa kom tsis txhob ua yuam kev ntawm kev tiv thaiv kev sib txawv feem ntau ua rau kev ua haujlwm qeeb ntawm kev tiv thaiv kev sib txawv thaum lub tsheb npav luv luv.
Raws li qhov teeb meem ntawm tam sim no transformer saturation, tshwj xeeb tshaj yog rau kev xaiv ntawm tam sim no transformers rau txawv kev tiv thaiv ntawm high-voltage busbars, vim lub loj luv luv tam sim no thaum lub busbar yog faulty, thiab qhov txawv ntawm cov tam sim no transformers ntws los ntawm lub Sab nraud luv luv-circuit yuav loj heev, txawm tias txhua sab Yog hais tias tam sim no transformers nrog tib yam ntxwv raug xaiv, lub degree ntawm transient saturation tej zaum yuav inconsistent heev. Tsis tas li ntawd, nyob rau hauv cov nqe lus ntawm kev tiv thaiv lub hauv paus ntsiab lus, TA saturation nrhiav tau lub ntsiab ntawm harmonic braking txoj cai thiab adaptive weighted sib txawv tiv thaiv tiv thaiv TA saturation yog saws los tiv thaiv CT saturation.
Thib peb: Qhov rhiab heev ntawm qhov sib txawv ntawm lub tsheb npav yog cuam tshuam los ntawm qhov tam sim no kos tawm thaum lub caij tsheb npav sib cuam tshuam lossis kev sib cais ntawm lub tsheb npav ua haujlwm.
Rau cov tsheb npav sib txawv nrog ob lub npav ib ntu lossis ob ntu ntu nruab nrab impedance yam tsis muaj qhov sib txawv loj, lub rhiab tam sim no relay tau ntxiv rau ntawm lub npav sib txawv raws li kev tiv thaiv tsheb npav, thiab nws tau muab tso rau hauv kev siv thaum lub tsheb npav sib cuam tshuam. Tshem tawm lub tsheb npav ntawm qhov tsis sib txuas. Rau kev tiv thaiv tsheb npav sib txawv yam tsis muaj tsheb npav sib cais, nws yuav tsum tau txiav lub tsheb npav khi hloov ntawm qhov chaw tsheb npav tsis sib cuam tshuam thaum lub sijhawm hloov tsheb npav, kom tsis txhob muaj teeb meem rhiab heev ntawm kev tiv thaiv tsheb npav sib txawv.