Dab tsi yog qhov transformer load tap switch check?

Kuaj cov kauj ruam

1, hloov kev sib cuag tiv thaiv kev ntsuas tom qab raug hoisted tawm mus, siv cov roj transformer huv si los ntxuav, ntim, soj ntsuam lub toggle hloov yog txoj hauj lwm ntawm qhov tseem ceeb ntawm kev sib cuag tiv tauj nyob rau hauv ib sab (los yog ob sab), qhov ntsuas yuav tsum yog qhov tseem ceeb. ntws ntsuas kev sib cuag mus rau lub xeev A ib leeg, B thiab C tsuas yog tus lej rau sab (los yog ob sab) ntawm kev tiv thaiv kev tiv thaiv thiab kev ntsuas Tom qab ua tiav, peb cov ntaub ntawv theem - raug kaw raws li. Tom qab ntawd, siv Ib lub cuab yeej tshwj xeeb los hloov qhov hloov mus rau sab nraud, thiab ntsuas qhov kev sib cuag ntawm ob chav A, ob chav B thiab ob chav C (lossis sab lus). Tom qab kev ntsuas, sau peb cov ntaub ntawv theem - raws. Tshem tawm cov kab ntsuas ntsuas thiab ua kom tiav qhov kev tiv thaiv kev ntsuas.

2. Kev ntsuas kev hloov pauv ntawm kev hloov pauv: saib xyuas tias tam sim no kev sib cuag txoj haujlwm ntawm lub ntsiab ntws ntawm kev hloov pauv yog nyob rau ntawm ib sab (los yog sab), xaiv qhov kev sib cuag ntawm qhov sib txuas ntawm lub ntsiab ntws, uas yog, qhov ntsuas yuav tsum. yuav tsum tau nqa tawm thaum lub ntsiab ntws kev sib cuag yog disconnected. Siv ib leeg - caj npab choj (los yog digital multimeter) los ntsuas qhov kev hloov pauv ntawm A ib sab, B ib sab thiab C ib sab (lossis ib sab). Tom qab kev ntsuas, sau peb cov ntaub ntawv theem - raws. Tom qab ntawd siv Ib qho cuab yeej tshwj xeeb los hloov qhov hloov mus rau lwm qhov, thiab ntsuas qhov kev hloov pauv ntawm A ob, B ob thiab C ob sab (lossis sab lus). Tom qab kev ntsuas tiav lawm, sau peb cov ntaub ntawv -phase raws. Tshem tawm cov kab ntawv xeem, thiab kev ntsuas kev hloov pauv ntawm pab pawg A qhov kev hloov pauv tsis zoo ntawm pawg B txawm tias kev hloov pauv tsis kam ua tiav.

3. Hloov hloov pauv hloov waveform ntsuas:

Siv rau ntawm {{0}}}load kais hloov qhov ntsuas kev ntsuas kab ntsuas kab, schematic daim duab tsuas qhia A theem thaiv, ob theem tsuas yog raws li tib txoj kev rau kev sib txuas luv, tsuas yog B, C ntawm qhov ntsuas kev sib txuas. mus rau qhov sib txuas luv luv yuav ua tau, 0 theem pej xeem siv yam tsis tau txuas dua.

(1) Muab tso rau ntawm -load kais hloov qhov ntsuas ntsuas ntsuas hauv qhov chaw tsim nyog, thiab hauv av lub plhaub tester ntseeg tau. Hloov mus rau lub hwj chim ntawm lub tester, xyuas lub xeev pib ntawm lub tester, teem lub ntsuas thiab cov kev xaiv raws li qhov yuav tsum tau ntawm ntawm -load tap switch parameter comprehensive tester phau ntawv, thiab pib lub ntsuas rau hauv lub xeev ntsuas. tom qab kev teeb tsa thiab kev xaiv tiav.

(2), transfer switch to the other side, the instrument measuring and waveform displayed on the screen, the operation instrument of single, dual function buttons on the transition resistance and dynamic resistance, is always switching time, access time, t2 t1 singular set of resistance and odd number resistance bridge time, access time, three-phase time t3 double array resistance and contact vibration bounce over the same time, Read, judge according to the standard and manufacturer's regulations, select the printing function for waveform printing and saving.

4. Kev ntsuas kev hloov pauv nrog winding:

(1) Siv tus pas nrig tawm kom tso tawm qhov kev sim transformer

(2) Tshem tawm qhov siab siab, nruab nrab siab thiab tsis tshua muaj siab ua ntawm lub ntsiab transformer

(3) transformer ratio tester muab tso rau hauv qhov tsim nyog ntawm qhov ntsuas transformer, thiab lub plhaub hlau ntawm lub tester yog ntseeg tau hauv av. Rau kev xaim, txuas cov kab xeem mus rau lub casing A, B thiab C ntawm lub siab tswj sab raws li cov kab daj, ntsuab thiab liab, thiab txuas cov kab dub mus rau qhov nruab nrab ntawm sab;

Transformer muaj peev xwm faib khoom

4) Txuas qhov tsis yog - xeem sab rau peb - theem luv -circuit grounding feem

5) Tom qab qhov kev sib txuas ntawm lub hwj chim ntawm lub tester yog lawm, ceeb toom rau lwm tus neeg ua haujlwm kom tshem tawm qhov kev xeem

(6) Tom qab tau txais kev tso cai los ntawm tus neeg ua haujlwm ntawm qhov kev xeem, lub siab tuaj yeem siv tau, thiab lub zog ntawm lub ntsuas ntsuas tuaj yeem tig rau pib qhov kev xeem. Thaum lub sij hawm xeem, lub suab yuav tsum tau qw thiab saib xyuas yuav tsum tau ntxiv dag zog

(7) Hloov lub hwj chim ntawm lub tester, xyuas lub xeev pib ntawm lub tester, teem lub ntsuas thiab cov kev xaiv raws li qhov yuav tsum tau ntawm cov nyob rau ntawm -load tap switch parameters, thiab pib lub ntsuas rau hauv lub xeev ntsuas. tom qab kev teeb tsa thiab kev xaiv tiav;

(8) The value under the letter AB (or column) on the screen represents the resistance value of the corresponding test loop. During the test, the instrument automatically identifies the value (XXX indicates that the test line is in bad contact and should be re-connected). After the value is stable, press the "Execute" button and the screen will appear: "To be operated by electric or manual

(9) after the switch, the instrument measuring and waveform displayed on the screen, the operation instrument of single, dual function buttons on the transition resistance and dynamic resistance, is always switching time t2, t1 singular group resistance access time number of single and double bridge resistance time, access time, three-phase time t3 double array resistance and contact vibration bounce over the same time, to carry on the interpretation, According to the standard and manufacturer's regulations to judge, select the printing function for waveform printing and save

(10) Rau qhov sib xyaw ua ke ntawm -load kais hloov pauv (M- hom hloov thiab M- hom hloov), qhov hloov pauv ib txwm txav mus los ntawm khib thiab txawm, yog li ntawd cov iav xeem yuav tsum tau nqa tawm los ntawm cov lus mus rau ib qho yooj yim, thiaj li ntsuas qhov hloov pauv ntawm tus lej mus rau ib qho thiab los ntawm tus lej mus rau tus lej. Rau qhov sib xyaw ntawm -load kais hloov pauv, kev hloov pauv ntawm kev txav mus los thiab kev sib cuag zoo li qub ntawm txhua txoj haujlwm kais tsis tau rov ua dua, thiab muaj qhov sib txawv ntawm kev sib cuag nce thiab nqis, yog li lub xeev sib txawv. Yog li ntawd, tag nrho cov ntsiab lus yuav tsum tau ntsuas tsis tu ncua los ntawm 1 point (ntxiv rau N0), thiab tom qab ntawd thim rov qab kom tiav cov txheej txheem

5. Roj cia tank, ua pa apparatus thiab roj theem ntsuas yuav tsum tau soj ntsuam raws li qhov yuav tsum tau ntawm lawv cov ntaub ntawv technical.

Online roj lim yuav tsum tau kuaj xyuas raws li qhov yuav tsum tau ntawm nws cov ntaub ntawv kev; Qhib lub tshuab hluav taws xob lub thawv, xyuas seb puas muaj qhov xoob, xeb; Xyuas seb lub tshuab cua sov puas zoo li qub: sau cov naj npawb ntawm kev ua yog tias ua tau, tshawb xyuas cov haujlwm ntawm lub cev muaj zog thiab lub txee los ntawm kev khiav haujlwm ib kauj ruam thiab rov qab los. Cov khoom kuaj xyuas txhua 3 xyoos:

Nyob rau hauv cov ntaub ntawv ntawm ib txwm ua haujlwm tes, hluav taws xob hauv zos thiab chaw taws teeb ua haujlwm ntawm lub voj voog, tsis muaj qhov txawv txav;

Tshawb xyuas kev ua haujlwm nres thaum muaj xwm ceev thiab txwv cov cuab yeej;

Check operation characteristics and measure switching time before winding resistance test; If possible, measure the transition resistance, the initial difference of resistance value should not exceed ±10 percent

Kev ntsuas roj: roj kam rau ua hluav taws xob ntau dua lossis sib npaug ntawm 30kV; Yog tias nruab nrog lub lim roj online, qhov hluav taws xob yuav tsum yog 240kV. Yog tias tsis tau raws li qhov yuav tsum tau ua, cov roj yuav tsum tau lim lossis hloov nrog cov roj tshiab.