Yuav Ua Li Cas CT Primary Injection Test

CT test & CT Secondary Injection Test yuav tsum ua kom tiav ua ntej CT Primary Injection Test. Tam sim no peb muaj kev ntseeg siab tias tag nrho cov CT thib ob Circuit Court raug txheeb xyuas, yog li ntawd, peb tuaj yeem txhaj cov tam sim no siab ntawm thawj sab nrog rau cov khoom siv thawj zaug tam sim no. Tab sis ua ntej txhaj tshuaj, peb yuav tsum mus rau ib qho kev kuaj xyuas thiab kev kuaj pom kom paub tseeb tias:

Kev tshuaj xyuas qhov muag
I. Tsis muaj kev puas tsuaj rau lub cev
II. Kev sib txuas raws li kev pom zoo kos duab
III. Ferrules Ok
IV. Tightness ntawm tag nrho cov kev sib txuas Ok
V. Cais tag nrho cov high-impedance relays.
VI. Muab tag nrho cov relays ntawm 'tawm ntawm qhov chaw pabcuam' txhawm rau tiv thaiv kev mus ncig tsis raug

Peb Cov Txheej Txheem
I. Core Identification
II. Cov piv txwv tam sim no & Kev lees paub rau luv / cais cov chaw rau Kev Sib Txuas Thib Ob
III. Bus Bar Stability & rhiab heev

Kev txhaj tshuaj thawj zaug
Thaum Lub Sij Hawm Txhaum Cai, peb cov kauj ruam uas tau hais los saum toj no yuav tsum tau txheeb xyuas ntawm qhov sib txawv ntawm cov khoom siv tam sim no. Rau kev txheeb xyuas cov tub ntxhais txhaj tshuaj 20% ntawm qhov qis tshaj Primary Rated tam sim no & luv tag nrho cov kev tiv thaiv & ntsuas cores ib los ntawm ib qho. Xyuas kom tseeb tias qhov shorted core theem nrab tam sim no yuav tsum yog xoom.
Ib yam li ntawd, rau luv luv thiab cais tawm nrog rau CT piv kev pom zoo txhaj tshuaj 40% & Txhaj hauv ob kauj ruam.

1. Theem rau hauv av
2. Theem mus rau theem

Nyob rau hauv kauj ruam 1 txhaj tshuaj nyob rau hauv tag nrho cov theem ib tug los ntawm ib tug nrog rau siv rau hauv av thiab xyuas kom meej tias tam sim no yuav tsum muaj nyob rau hauv tsuas yog txhaj theem thiab nruab nrab nrog loj npaum li cas. Hauv kauj ruam 2 txhaj tshuaj nyob rau theem mus rau theem nrog txhua qhov sib xyaw ua ke thiab xyuas kom tseeb tias qhov nruab nrab tam sim no yog xoom. Ntsuas qhov tam sim no ntawm tag nrho cov terminals, kuaj keyboards, relays, BCU's, IED's & meters, tom qab ntawd ntsuas qhov tam sim no los ntawm cov cuab yeej tso saib (los ntawm thawj lub davhlau ya nyob twg mus rau lub cuab yeej tso saib thiab txheeb xyuas qhov sib piv ntawm CT.

Txawm li cas los xij, rau kev ruaj ntseg thiab rhiab heev txhaj 10% ntawm qhov siab tshaj plaws thawj ntsuas tam sim no. Thaum lub sij hawm ib txwm txhaj tshuaj, qhov loj ntawm qhov sib txawv tam sim no ntawm cov khoom tiv thaiv busbar yuav tsum yog xoom tab sis thaum peb thim rov qab lossis sib pauv qhov kev sib txuas thib ob nrog lub jumper, tam sim no peb yuav tau txais qhov sib txawv tam sim no hauv kev tiv thaiv relay.

Nco tseg:
• Xyuas kom tseeb tias thaum thawj zaug txhaj tshuaj, tsis muaj suab nrov los ntawm CT hauv kev sim.
• normalize tag nrho cov circuits
• Nyob rau hauv rooj plaub, ntau tshaj ib qho CT koom nrog, ces cov thawj txhaj tshuaj tam sim no yuav tsum raug txwv rau qhov tsawg kawg nkaus qhov ntsuas tam sim no.