BSTJ 40: 6. November 1961: Power Systems for the TH Radio System. (Gay, R.R.; Hamilton, B.H.; Spencer, H.H.)

10.8 MB·English

Power Systems for the TH
Radio System

By KK GAY, BH, HABILYOS, and HLH, SPENCER,

The tonic sone of ja forthe TH ra equgament i rile 280
alt ae aiid fro bans of srcadmaler-allernatr ves, These
ormeliydrivn by coumerctal ge power Tad noch mutomatialy 10 ba!
tery die on tae of emaereia! pater. Tie frm ne pase i bed Lo
the isda! te of opament che le een, of sarioen Spee
fantacy, prdace de power of the reve tattage ant eaaty. One of the
nore eaaced of tee Zs the 2500201 replated eupply fort tovelng
weave hte.

‘Thr treo on cont eyuipments in ee THC nud syste
ec de per ata ualsphety a elle from 7 to 100 vo A
Toad rae of sally, a soe other performers remem fs
tslablirbed acronling inthe renitivitew of he individual loud. High
shige an objertve cornoan to all af he power enaient. Other
important bjevtves ase fexiity for gost, nly for sma

tuner, provection of penne! fromm Baan voll, aed en

1 Chosen of Late

“Toe de abe pal in one general eeu
Tame in eva lla 7 0 250 yl, ekaatrrizad eon
stat loa, telerasve to sonal volte vurcions of -E3 per cent and
fie sine reise hal ns esti geome with
passive flier
1B) Lgl velar (1290 10 $100 sale) forthe ravings tbe
chacasteried byob j por cot stailiy tyuiients nd oe se

‘nl portal and protection features
{is} Mednn wets (170, 1290, and +80 ult) fr Ube Kye
128 ue pena Svemran rwsuLAL JOUINAL, NOFFOTRRR a

Inns and vdeo unplifen the FA terial eigen, arene
Tip kN? per cent long tern sti regina nd uo rule
tensa fons a NH ao cat the Fees mange of 2 to UD eps
Ineae pase loving i praercl

fix) 421 and —21 vot forthe preetion evitehing eyipmat with
spel svingent rebailty reauieren's

12 Daan Appel

While many of He set-agye U2, 24, 18, ard 25 ox be sep
‘vey from eatland hase plats, the trave ngewe fae vltoges
Sh foo high for his typeof approork. Tostead, epoca mazonalermaor
fete re emploped te generte ke al consinaous (rm) ns pve:
‘Phe moloralieratons sre wrwnlly dein by censor ae power but
wile over to battery drive in The ever: of omsmemial power onto.

All ge voltages ne pred by de power suplits conmerted to one
‘ot the fam ae bss, A de power sappes are dsontrlized such tha
wc sage alure ean apt mons that «single o-weay broadband
Fuanel, (a exception fo tis pieipe ie the spl ths protection
Saitehing equomiet stn tedidant rotten ad eiees batory
ave ave provides} Decent of the pe pic sin ies
fhe dist ition ol once eal provides bi “ar gro

CComeeial service is curio the menmal prise we of pose
for a TH rain tation. Cider ronunetvial power fire conditions,
femeraciey pin ie pode ty single multiple dsl engin alent
toast: Power serve ary TH sytem, as bee earned hese
hse, ote 120,08 vad at Love of high power mayieanens
eae citi soto fot typical italien, needing em
se motonsdennataramcgemunts devbed fa Section IT, nas i
Tig

‘Comoe: a balan vit inte ovo ean eligving, nome
proleted and tinperceat, Psleted Ineds ace those wish ronnie
Chergeiey merine dani eomorial owes Kiltse corto Tp
{eter or noseenticl equine hae ars sopplie from separate
Misibationeubinet aed fel et ie as notmel oe Hing,
Tannitiwiig and the moturgeaeraine ot yesiber wae for reckanging
The 190-0 hatter Praetad, of easntial, equipivent hada frm, bY
far, the lange peemntaye of tbe total fre vient, a a be we
from ig. The pneu of Phe lade ceomplihod Uhrgh
1209
190 ne nn smernae TLISHENL MENAL, SOY

s.eusomer Sutnised detain cabinet. hie cabinet servos all sen=

ial building services anal per Faro sorerion expats ae
tivo In lia anstnan: engine aerator cep, o's erin
fhe when FHL syste ure cone Mth TD-2 stim AD) TH Tada
sve derived from this eabinel via an intermediate ti1ee-phase ditebu
tion eabire, his ater ans, debates power ke essentl lew seh
tu the MSA metoratentor phil, che 10evalt battery plant, the rio
tne sol ng nyse, ter Bei, ily outlet, ee

"The fem ce goer spstom ie Jesign for empleely sutoratie un
atinned operational ytnnte and, af tines, iearcasble mexatesn hon
inne, This mpplis provided by acum generate et which couples
Angry an ene chal. sytshconas induction ar moter, a de motor ex
ft muséles ae type sllerinion. Under agra opening condone the
fel insite mentally Lis de motor rom he stan 190 volt hater.
lier mesching serra sed and volte, she sel plored in nenmal
Slongtic ope ion hy ensnersing i 9 hs load and -anseetirg to wt
Thntor dives With etal tne fnsqeney, synehronous motor drive, nd
awatilly Fars! Wed, the allomatne output vole is constant and
Slate ‘rove ng voltage Iruisnat sil vareions, Lire vllege me
fore ot bows she put toe poist athe ae molars, enntelasto-
ie trrsor n.d motor deve i the exert of mzgna! Tine vllage
Sand pera’ vt fo ge dre lea he ae pus is wessor ais mat
Yollage and fequenty mig Ds operation fr out thee miles after
Dower rtatue gives the Tne chanee te sein Iefon permising a=
[ise tin Eee is onsaie acu Ur, exci arm
Semator speeds mal Hiern, snarl Inad volts, montane
fa altemator sup rote asomntie Laer to de deve util the
ingly rqucny resis os ne rage. HF the esta ofan ale
femtator gus heyond slob Ts far other che excceive =uppiy
Frequency real ns eg an tiv se mate Fae), then the a=
nl wetage meter sonvols ntiwuie teaser sn looser ee
potor are wah alan to ificate 2 Honble consis on a partir

alters

“The ncpat monitor ote altgenssor win genre gine» conssued
bnntmntl sage ile np dps bel 0 pr cea ef the arma
Dantvat value for mur Usa A ised of below 85 per cent for
tie than thrce rans Under thes say condor, the want)
Peete transfer the ol ta the tasting sre, down the alesastor
involved td case gn lara tn be given As sown in Fig 1 lento
2c common runing spe ral erga alert, Taker et
he fae any’ wu alent whe Zl rh tal shat
‘down for maine ould woe Than oe alent Fai ene Cine,
than che Lowest snakes aller gee preenceca tbe basi that
fhe at ipsa ends te elected The fast alenatons. Amini

sar serving the se ies a
2. ‘This volver sor alesis I ad 9, ig pte alles
tor 2 and ed spanesiemainy © Ade. inade on heen, baal ©
ute anvter tear aerate or rah bes. Akeroater 45 far nse
fon a plain Ine os rplace aay ober alternator for major pts. I
spe the stp sd irri a she eerste Hepes te i

tion alata req fi an

14 Poa-MatorAterneor Dest

A ow tye af eset alternate fs ben! deseo Foe
‘od SA plan fr Chis ppleation, Tesi fr edo
‘neveton; attain Geld gale sing Yor mond tetiying ede
for the alert ded ll exrkainn elena he bt ofoe sone
alse of dial gente rier

ieee har ane sg of auto nator to ape a ayeson
spel intend of a aip nce a niece ona saul eugene
fio moter. The aychnmnschetsetrsties ofthis new type of motor
are prodice by the epi eonguctoa of «i east luz rotor
‘The nor or has sadent pele, sin a relintrce type evn hres
rotor tou sinter Bing pth whic ox rnany’ ice
the spushronisg tamer fw lorie selina aor. The Ma
acai avenintry iar ion ror webring a un re
‘peetroriam, whempon the ayuchnoalzing torque pills the tea" Sate
fscicbromism with the magnetic sel of the stator, Tse rotons ge
‘siconoue option without far windings an€ wiz: psig and
“rls fr de wsiti,

Ths keeping sith the Imuskins ae maton, the de motor ie operated
small wits is rts ised by a ane at wih fe Hel con
Hae wha tne buttons Fah oe ap he bela
bck ap hatter age Trish Ting Ive prendre fie
lng peer ee Unltd eatin ty beak 90a de anes
ately, pooper oe pong a ena cee enced, and pote
iting wa the sani ate ener

The We mer sped chaotic ae desired ko en ith ano
eval aguating eet to asin peel its ee epee of weal
‘aheyete speed Zor baleey Voltages beeween 115 end 18) vot, This
WB! cen wate sesamae TErENeat JOURS, SORE Cet

merit 4 1

\

[i ed Bea
ulti ii nf Fig. ae she msm eae
ition disien te provide walvear shiv oor fed esa
Seve ntti sn ld, At the ries Suey seg 120 ve
ih thesternonemuasting, the esisanoe fa ees we ol
innate hy ev ta gem eget toyed of 80D Yom The ig

tthe ey gatenometey is etc hut wy frase in attery wogs
floor 120 voli inteass the drop aetre thi portion of dhe wxteal
Held ecu, wrt the les oval dos to bold thee drop eoiant.
Dertery volta alu 120 vole thus iaemsee Hae Bld eons Trseer
ths inst sopottinn tothe vultgy i. Poe aaple, without diodes
‘Heineman fad enone neal! waa Ube tia of 145420 o> 121,
Inherene with the dds the ntio fy inesaaed to 134 The de motor
fre rharacorntic fs designed ott this wonisesr incre i Gel
fers offers te dies snereawe fx aenanare cureneand. es mnin=
ins eprovnvlely estat sprod over Ue last eissarge wolaye

"Ren example of the de motor sve ngslatinn with varying lees
voltage, abse is ten fm Taburatoy tos dat

Tama FDC Moron Serv Rewcesnoe
Cuntinsiog with the bnusblos theme the set ues a neseaty developed
ype a llemetvor, whieh employs ut de gonerseor winding wil 1
soon ition to Curis de fr tp sterator Bed, A vlog ee
Teta eats fhe dieser earont mn theese Feld aad mains the
Toad sotge within a1 per cent from ne eto fl ad fer power
Fenton O37 e9 wns, The mathe desig together we fast sing

wgetie regaleton, ririminee eae

Frit aeplter soem
ged age ove oro sg The feet o rans ing
the allerator dive fnon uc toe msulls a 2h per ent voltage dlp

‘wer a LOD-ilseond interval tl normal outpat sltage ¥ restored,

Tig. 9 shows a eypical poe inlaw ielaling the Fe ae plant
the aeorgtedeseyeney E-val Haery pant andl te connec
visti: shine.

‘he overcame we: is. single Fane ever i wit eho
ie motat st ee en br give aes tambon onsets and the
ner tor at he oppose end to pride racy cess she estan
‘eters ‘The st moans onthe susie trmework set hs Fgh The
Iescited control equipment in the adjoining ented iy ei
Th bys 4 sintensace with ing gate and
Hinge pune

The equip ie coplese ee shop esembled and ied si
reed fo asian evden mig tle je

3
3
3
3
3

ssa
8H vm maa sarin YHeMSIENE FOOHRNAL, NOVEL

cnggveesing tor oneving initia atl Jor aelishawe One equipment bs
find Trevor are rae or each ti altrsaton fe anasto
four ais far the wliogte of seven alterators

sue Pir AC Brat

‘The diaeition exangenconts For the eos ae powerplant am eng
vied to wille fully the ripwiy of be mateclterss, wh me
inviscid sd Ie see viz co ecalee che msi,
Sn rbinhlly foe the working rain erate, "This ois considerate
nasneving acl plana inl fo aticipate Fe reqainemena and
Wiaveld enignzents whic soni make proteetion or mandy fice
Avail in fhe event of all ii n he nator alemaor pla
Felting is lesa pone afta se ctibstios ua ta Bo Dh
{reidicasy remeater stain, hon Sls qinged, av eur aormal
Fnowing mctortersatore, eae nereying oo te ay bela st

heck; the misrnnave ects supply and sea chaanel equip ate
fvealy dived between buses + and a. Far otser types of statins,
‘huh oe riteing main statins, wher asia serie ike prteetian
Sileiny. and vermin) Hilts are yequized, erefl planning of a
sssinie Lx enables the servi protien features to be met, Savions
his tater spe rogue ulltare of Evesonmclly sang mines

4s Cuong Resifers

ior general purpece ws, « numberof unregulated reins wee de
sigue rhown ia Table I

"The ete pets inom He: 2900 ae ad emg dinar
sileun dics ad oaversoenl prs tees & Hite vokage act
Iven mgs ie peovied by’ a variable transform Ide arose pot

‘tame HL — Usieounarsy Reeves

Fae cago
shee eg"
BEES ERE ante caer met
1 poner steneas 103

SIE.
a——"

1 the traneorner primar ang typi ois trated
5."The rane sarge currents He len (oops
Sher ng curt wad in eanceener prieaey wending ‘msormer
jnmag acto plo caperion ehargmg eaerent) ere corfu ht
sate bruv die fal ed rans eet breaker open. Ts
Feanent hvestigations ere led yw am seal me fj sie
tuhien maybe pass vo clowe a: a ee ted ase wae of Te 89 eee
Sulla ae
All these wotfens ar nlvin tp
sestalsne, Srvent-cae shown ig. See te ectigers se tice
dass there nealts wersey oem They hang
Seatch panels in the TH hays hyn of Resle st the by
Pecebs vlich ure engage hy eiplive ears i tin ncereide of the
Fevtior chasse’ Capetons and inlets tre mgt oe hase
inva ewnentiqnal sannee. Ax ofeu-type power trussorme” wal Ue
tlotvuonner nied fr ont wolage aston wre aun under

gd bur a aleng faiy
163 nue wens sek Mma gOS, NUN AURE 28

ed for prsonnel rote

ina except

£8 High tage Toulon Wave To

A upp wih vet spel et
fone art Trovelingewse res,

he
and iller eve The senda ate Fl