DE1960070C - Test facility for high voltage converters - Google Patents

Description

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in the; livk.ii'Cc!) .ib.-ι -iiillcn \ iiv-; liinvcii \ vi -v heu · ■ · '!' !. 'e-cli'. 'n. di--. Ii Iu: the \\ cilcic Ui ^- Ii: κ ill cn; ¹ iiicln

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Sp.lili. MIi) .''- IC.Illk I I- -Ί de! ! 1 .1 llsli>'Ml.! 11 TM. ^- k U! "I :: II 'IC WI lk 111: i' -Λ \ CISC ill's 1111 Blll'.k CM / W CIV;>" ι Ί 'CsC lic

sp.iiUMiiiv .iii Niviiul / ι -λ ιι -I and 'mi die linlic I el ι Ic ι ικ η! 11 η den - .; π ι > ι -. C, e: kl.ii I mc 11 «IC ΙοΙμ!

shilv ι · ι ¹ ",, ι ei ι decadic EinsIcHl ι.;> ei Kmi; ■> 11.: ί ', ι.; ί ilcl mi.in iiai Ii! ι;'. ! '■' mi die lieidcu

ileiis.:!.ί K / ι. vw in itself hu dic-.c / 'wecke he' -. nuleiis.iii'iv η '.. (.. m> eirihl sich / uisciiu den

k.iiiMi to the iiii, kiMi; iiisi '.. iiii!'. li.iiü'M.ik ¹ paiali ·. ': K Icinmcn c. ti. au the h.-j dci in ii) ',. 1 dai vc-lclllcn c.ii'vcsch.iiicl wild Hihi this Knndcns.il.ir ι (, is.i Sv.liallu'1; ¹ dci koiidvusaicicn C ₁ aiieescli.illc! / U

hciMCs.eii is. d.ti.i ei / u der kapa / ilal des inciicr think ι- 'iinlei dem I "mllul.ulcr durclulie Spaimimus

'.paiiriiiu'sNcilivcii Spamiunt'slcilci kiindeiisalui s \ <<waiidierw ick Innren ci / cii;:! cn Spaimuiiiicu C ₁ and (' _.

((I im \ erhall nis | / 'I) si eh I. \ m> Ivi / ■ il.iv aiii ι he I cei laul'-paniiuni! Ί ,,,

die millli.Tc I ehlcisliilc ι: .V π ι l> c / i>): cnc \ ei hah I ((Z ₁ ι (.1

ms dci hnhen I elilcisiul'e (! IO "" iis | '· ..' ι / ,, <■ '| |' ''

. ■ ΙΊ iileiMi icliinni ¹ according to claim I. thereby <

ückeim / cichncl dal. ' slail cinei decadic Λπ, '. ιρ -is'

Ilinj'.en having Scktm.lai wk khini ¹ . des slieu- 'ι''ι (. · ('. ,,

ainicii I i.iMsl'i) ini.:iiiis ι /,) Rii s.miilichc l'ehlei- ₍ - ₍ (·, <■ ₍ (\ ^-

siulen / in Ii / cu.lmuh: the k (iin [x ^- nsali <> iis-.pan

well).' in dem Hiiickcn / wiri;: unniillelhai the full after the I IeImImIl / I hcvenine-1 icoii'in ciuibl

Sekimdaispaniumu des slieii.irmeii Tran Icinia vi then hot linsdialleii of the capacitor C, an Ior · 'I / .I / in Aiisniii / ιιημ i'.el.iiir.l u \\ i. \ Im the clamps c. ι / enlspieeliend Sclialluny. 2 /> through milllcie and high lehleislufe a (> peralioiis \ ei dv'il kondeiisaloi (', the Stioin ./ ,:

slaiker (O / '| ii'il nachlösendem Sp.innunt'sleilei ('

voij'.esilicii isl and at iienut / um 'vlcs lel / lvicu · Ί. .

der Hi ikkcii / woiu \> ί {\ dem / usaiiiMieiischliilV ss ι

pinikl (</) ilei howl S; "). innim ^ sieili ·! kapa / iialcn '' '' ''" ■ ι ',' '

der koiidensaloien ((',. Cj ahuescliallel i \ i \ <. \ au ⁽¹ '

the Spaimuiu'siediiklionspuu. I of the tension uni (C ₁ t (\) - (\

lcilei ·. aiifcsch.illel becomes ''''" ■■

I) ie ad dem koudciisaloi (\ aushiKlciidc '. Lsi then

I, I) ie I ι ΙιικΙιιημ he / iehl himself aul the Γι nlen \ on <"-. '/ ■ < ,, |.

ι ic hspa η η 11 iij's w and lernserve de I'rii lein ι ich tu Mi:

ι Irinillluni ¹ des Γ 'beiselZiuifslclilei s and I' ι ''. ■

Mwiiikels of a soklu'ii I lochspannuni'-waiullci. '(',! C, I (,

960

Use K, Ip.i /; i: il de-.

-. ι UOi K.ipa /! Uil de- k
d, e lic --mgnng fulfilled (
.id-- -L-! C -Iuk-'uhil; ^: 4i Ji

"- (', v'hl! -. sa; oi ν (
in I ι ■ ('..

•: c ■■ : i! -Ch.: Ii;: nu .ie- Koiiiien-aiors ''. ir den ■ f - .- 'Weig ii Ί - -in ;, / u! "I-olgc. cl.'! <those at IC <':'->

t ':''. Ki · ι, / Λΐ-ι>: ι- · .ic ¹ ! eir .-. ieiier.dc "^; p: i.inun>: i ^{; j} : ca ¹ '.-'ei; ii-c · Aer'e- reduced nnj.
'. ■ --ler s, .iiiiiii.ig- '.'. .-i-.e '.mi 11 ο h 1 ewi: ·'. : m -irom-. · ■. '. ■: ■; m>; de ·. N'.iÜri.! Ikai.v.nstrumcni - Λ / the

. "'^ el-ell d-.'i".Kiciini'ieüti ϋ, κί h am k -ndensa-:>^1;,.; -: - ''"M!De-.de" voltage antp.it'.idc! '.- and \ ha-

- ---! l. !! '·:.: - K. ii':; ix-iisii "ri durj, the Siinvne iier at the 1 ■ Icii V i i-jiiduiii'.incM'dungen I. - tapped V. »Ν Hi-C- !. ν ·, ο bei / ι heachic-: is. D. Ii c! E ·""λ ν d; n .ι :: - η :. Taif. '--Iuilor /, an ^ eschlossc .. - .- SJileif- ^

-. . :' in! ^1. '■■ d'.:>p-ir; iung '.'_ gic-i «her phase excited ν. i '·: and who , · <\ die Ph.iscndrelis'ufe Λ / connected' ■.-l-ieiulraii ¹ <■ mü um '»H ve ι set; Phase ciiegi wire!

i η! -, pi, eh; Jie Spannunusaufteiiunu dur-.l ·, the tension-; i -; -. ■ -. andierw iekliiiigon C,. li _: exactly the Sp.-ui- 2.-, i ^ ii-.u-aulicMuu ;. ' throughM. the K .Midensators ί _:. C ,. S ₁ ci'-ciieiiii mi iih'jeglich (.nen / ustaud in dem Ii-U'_ken. ". \\ eiL - /. Η no tension, and this zu- ■ -iiiid c-Msnni.-hi the brave Flin.-opening the slide-

l.nispneh ¹ , the division of Sjiaiinung by the. lloc! is | "Mii [-. unü-.waiu! lei" 7, not the capacitive distribution you, anyway the condensation C ₁ . C ₁ . so are the SehieiPrvonlakie der Selileifdrdiiaaordnung / - in a corresponding way. ί set, and / was then delivers 3s the SchleifdraiHanortliung / the Cberselzungsfchl-.t J ·.: -.- I lochspaniiLings'.vandieis and the F.instel-Itiiig at the Sc * ;! "If wire arrangement λ ilen here occurring incorrect angles !.

In general, <J: e SpaiiiHmgs'.sandler- . \ C I'rü fei η rieh 111 η'Jen for different areas of error. v.'e the table zciiil:

45

0.2 ί

ί 10 M 20 ^: r W) O 40 - 200 10 I. 50 i IO

The table shows the error / ■ 'in% and the lean angle Λ in minutes and also that for the connector C, dimensionally accurate / i and the l-ehlersp.'. Nnung f. ' ₍ - given in \ 'with an assumed secondary NpaniHing of (', - It) OV. that the l'riiie'nnchtung aiii decadic the w:.! r scliiedensicn nbersei / ungsverhällnisse read a · '' h under test llochspannungsViandlers; This is orderimg se characterized ue ... lab / ¹ animal capacitor C ₁ is set in decimal increments, ο can with- <■■ ', mirrored by the KcMidensaior C ₁ 100 ρ Γ, and the capacitor C, can be set in decadic terms / wi-M-Iini II) O (K) nl ^; and 10 ■;.! · 'be changeable To then' Χι ic: ^ er-i-cliiedeiisien C "her> etzuims \ Receivables ilie -.! en.:η-UlIi weaned F'ehienvi'-jicheeiiispivi hend der '. 'ib -.- lle by l'nuch.ihbatkeil de.- k -ndciisators C, -ieher / usiellei'i. miiLS'e der Koiiden-a'.oi ( , for each filerbeieicii also. ^ is ... us correspondingly dimensioned capaciK-.tsdekadc-ii hesteb.cn. whose switchover ge-Kcppeh -.chi would have to result with the decadisclien t m-.ch.iliimg des ki'ni ^J · .'tisaiiir-. ("■. / nioin see In such a case, for the lioeh-UTi iehicrher-I extremely large values for: r (',.

Here you can go wrong. d. \ o the Konden.alor ( _; with ucr iiekannien arrangement also he; the measurement in the; iit .- (. irigsiei: i-'ehlerhcreuhsstuie is used and; n this; stage one of the lower ones: i / mi Me -sung> je! ai; genden re'i-jn adapted \ received'- ^: - .. moderately high piO / eniiiale (.ienauigkeit! iahen I] UiL

\ u> LiIi these (. wounds ma .iiMier dai.iui renounce ', a;', dckadische'i Aclliau ic-, condensate -.- 'i'si', '. or,' iisi.licii iipci hai sieii ! κ'.Μΐι.μΐ. L ₁ am liir a few specific fbersei / iiiigs ^ orl · '-itnisse

I.mc eiern Fiüfen von Hochspatii-üings ^ andlerii serving l'i'ifeinric'niung /1.1 r Fi miit'iung des T ¹ FeT-X'tzung.-felilcic-, and de- faults of a HochspaniHingswanüicrs in the Tehlerbereiclis> There are differences between: large error levels i-t same level of small errors: minier error level is the same level of errors, here: high level of error it equals level of high level with inseparable capa / ilixem Voltage divider, whose low ^{-voltageHinus.scitigci 1} Kond.cn-.atiir can be switched over in decade. in which a bridge information between the grounded connection point of the two voltage converting windings and the point of assembly of the split-circuit isolators has a zero indicator, and from the low-voltage circuit of the I-hole voltage configuration converter wire via a scattering wire 9t) the phase rotating stage (e.g., ti. l.ufttransformator) a second abrasive wire assembly are fed whose Abgnlfsspannung to the Abgiilfsspaniuing the Eisten Schleifdrahtanordiiung added wink to form a accommodated in the bridge output diagonal branch to effect compensation voltage is characterized according to the F.riindung by that the secondary winding of the low-leakage transformer is provided with decadic stepped taps and for the low error level (J- 0.2%) is used, the voltage reduction of the "l'ransformatorsekundärspannung and liie high error level (i H) ¹ O) a dekadi Sch adjustable capacitor, as known per se for these purposes, is connected in parallel to the bridge output diagonal rad this capacitor is dimensioned. that it is related to the capacity of the low-voltage voltage control capacitor, where / ι is the ratio of the high error level (t K) ⁰ Z ₀ ) based on the mean error rate (-t- 2 ° o).

Fane sees another embodiment of the image before. that instead of a decadic taps having secondary winding of the stijuarmen transformer for all levels / ur production animal Compensation tension in the bridge / little immediately the full secondary voltage of the low-energy transformer is used and the door medium and high error levels an operational amplifier with a subsequent voltage divider is provided

i 960

lsi and when using the latter, the nick branch of the audience of the two communication capacities of the capacitors and .in the voltage boiling point of the voltage divider is switched on. s

The low-voltage voltage- side voltage-side voltage divider i * i, which is adjustable in decadic steps, expediently also varies continuously in a certain range in addition to its decadic gradation, because in practice it can be expected that the high-voltage side capacitor of the capacitive voltage divider is inherently constant, but in terms of its absolute value is not strictly defined according to its production. On the other hand the voltage divider ratio must correspond to the nominal overpressure, <, reduction ratio of the high-voltage converter, and therefore it offers the additional steady Variierbarkcit of niederspannungsseitiuen Spannungsteilerkondcnsators a means to adapt to the tolerances of the high-voltage side Spannungsteilerkondcnsators.

[5 of the progress achieved by the invention results due to the fact that only in the highest error level (i 10%) a decadic adjustable capacitor occurs the bridge exit line is switched on and the adjustment of the setting stages of this capacitor to the setting ranges of the low-voltage sciiigen Spiiiiiiüiigsicüerkondcnsaiors Verein fold and continue to the diagonal c Connectable decadic adjustable capacitor in its accuracy only the high error values must be adjusted up to i 10%.

The first embodiment of the invention is shown in FIG. 3 shown.

• 5 capacitor, which can be switched on by switch S ₂ , is only intended for the coarse level F - ± 10% and can be switched over in accordance with decade.

The loop wire F is designed for the error level F = ± 2%, and the error level F = ± 0.2% is generated by connecting the complex compensator formed by the two sliding wires and the air transformer / V / provided for use to the connection 1 K) of the Secondary winding 22 of the low-leakage transformer T _{2 is} applied. The capacitor C ₃ is designed according to a coefficient ρ = 5, so that the decadic comparison ιιημ of the error range is obtained by applying a smaller Mavimal cap.izitäl of the pressure condenser C, cili, lit Is unici these values l ' iir du · capacitors (',. (. and (, .Ii, subsequent K a pa / ii.it sw crtc

C _x = KX) pF.

C ₂ = K) χ (0.1 l · 0.01 t 0.001) μΙ "

MO ... KKX)) pi ',
C ₁ = ■ IO χ (0.4 (-0.04 4 0.004) μΙ · \

The primary and secondary windings of the high-voltage converter to be tested are denoted by 1.1 and 1.2 in FIG. 3.

In all l'rüfweisen is the forming of the capacitors between the Ziisammcnschlußpunkt Γ, and C ₁ bzsv.der Spaiiiumgswandlerimpedanzen 1.1 and 1.2 Fchlerspanining lying or its relative value divided by the two Sehleil-

wire taps found Λ compensated.

The second sound mode already discussed above is shown in FIG. 4 shown for example. The secondary winding of the low-leakage transformer T _{2 is designed} for the error level F = 0.2%. The ten times larger Felilerstufe is achieved that ¹ at the two connection points <i. b a voltage divider with dividing ratio K): 1 can be connected through the switch S ₁ via one of the input amplifiers OP , which reduces the error voltage tapped from the connection points to a tenth of its value. The reduced error level can then be achieved by connecting the decadic capacitor (by means of switch S _2, which causes a further reduction in the tapped error voltage.

In general, the connecting line of the two capacitors C _x and C ₂ is shielded from interference by a shield Q. which is kept at potential (/). The circuit shown in F i <\ 4 can be designed so that from the operational amplifier OP to the 90-! J-Wi resistance line is used as a Vorspannleituim for the said shield, the operational amplifier OΓ having a voltage transmission ratio I: I.

For this purpose 2 sheets of drawings

Claims (1)

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