Page 389 - Electrician -1st Year - TT

2 úLô¬u Y¥YjûR A¥lTûPVôL çiPl ùTßm ¥Wôuv@TôoUoLû[
ùLôiÓ YûLlTÓjÕRp úLôo YûL vùPl Al ¥Wôuv@TôoUoLs ( step-up
¥Wôuv@TôoUoLs (Classification based transformers) Guß AûZdLlTÓ¡\Õ.
on the shape of core)
• vùPl PÜu ¥Wôuv@TôoUoLs
• úLôo YûL ¥Wôuv@TôoUoLs (Core (Step-down Transformers): ©ûWU¬
type transformers): úLôo YûL ûY«u¥e¡tÏ RWlTÓm êX
¥Wôuv@TôoUoL°p ©ûWU¬ Utßm ªu]ÝjRjûR ®P Ïû\Yô]
ùNLiP¬ CÚ úYß TϧL°p ApXÕ ªu]ÝjRjûR ùNLiP¬«p çiPl
LôpL°p Ñt\l Th¥ÚdÏm. (AhPYûQ ùTßm ¥Wôuv@TôoUoLû[ vùPl
1þp Fig 1) PÜu ªuUôt±Ls (step-down transformers)
Guß AûZdLlTÓ¡\Õ.

• R²ûUlTÓjÕm ¥Wôuv@TôoUoLs
(Isolation transformers): ©ûWU¬
ûY«u¥e¡tÏ RWlTÓm êX
ªu]ÝjRj§u AúR A[ûY ùNLiP¬
ûY«u¥e¡p çiPl ùTßm
¥Wôuv@TôoUoL°u JußdÏ Juß
ApXÕ R²ûUlTÓjÕm (one-to-one or iso-
lation transformers) ¥Wôuv@TôoUoLs
G]lTÓ¡\Õ.
4 £e¡s úTv Utßm 3 úTv
¥Wôuv@TôoUoLs (Single phase and three
phase transformers): AhPYûQ 1
Fig 4-p LôhPlThÓs[ ¥Wôuv@TôoUo
• ù`pYûL ¥Wôuv@TôoUoLs (Shell
£e¡s úTv AC ùU«²p CûQlTRtÏ
type transformers): Fig 2-p Lôh¥Ùs[Õ
Y¥YûUdLl ThÓs[Õ. 3 úTv AC
úTôp ©ûWU¬ Utßm ùNLiP¬
ùU«²p CûQlTRtLô]
CWiÓm úLô¬u JÚ TôLj§p/ Lô-p
¥Wôuv@TôoUoLÞm ¡ûPd¡u\].
Ñt\lTh¥ÚdÏm. CÕ ùTÚmTôÛm
CûYLs Tô≠ úTv ¥Wôuv@TôoUoLs
ªu]ÝjRm Utßm TYo Guß AûZdLl TÓ¡\Õ. (AhPYûQ 1
¥Wôuv@TôoUoL[ôL TVuTÓjRl Fig 5). ùRô¯t NôûXLÞdÏ ªuNôWjûR
TÓ¡\Õ. (AhPYûQ 1þp Fig 2)
®¨úVôLm ùNnV 3 úTv ¥Wôuv
• ¬e YûL ¥Wôuv@TôoUoLs (Ring type @TôoUoLs TVuTÓjRlTÓ¡\Õ.
transformers): C§p úLôo YhPUôLúYô
5 TVuTôh¥u A¥lTûP«Xô]
ApXÕ AûW YhPUôLúYô
YûLLs (Classification based on application):
ùNnVlThÓs[Õ. (Fig 3) CûR úNojÕ
JÚ Yû[Vm (ring) úTôu\ AûUl× TVuTôÓLs GiQt\ûYVôL CÚlTRôp
EÚYôdLlTÓ¡\Õ. A§L ªu]ÝjRm ¥Wôuv@TôoUoL°u YûLLÞm
Utßm ªuú]ôhPjûR A[dL GiQt\ûYL[ôL CÚd¡u\]. AûYL°p
CuvÓÚùUuh ¥Wôuv @TôoUoL°p £X Th¥V≠PlThÓs[].
CÕ TVuTÓjRlTÓ¡\Õ. CuvÓìùUuh ¥Wôuv@TôoUoLs (In-
3 ªuUôtß ®¡Rm A¥lTûP«Xô] strument Transformers): ¡≠l Bu AmÁhPo,
YûLLs (Classification based on the Transfor- KYo úXôÓ ¥¬l ªuÑtß ØR≠V].
mation ratio) LôuvPuh úYôphúP_ó
• vùPl Al ¥Wôuv@TôoUoLs (Step- ¥Wôuv@TôoUoLs (Constant voltage trans-
up Transformers): ©ûWU¬ ûY«u¥e¡tÏ formers): Õp≠VUô] NôR]eL°p
RWlTÓm êX ªu]ÝjRjûR ®P NUuTÓjRlThP ªu]ÝjR Nlû[
A§LUô] ªu]ÝjRjûR ùNLiP¬«p YZeÏRp.

TYo : GXdh¬μVu (NSQF - Revised 2022) R.T. Ex.No. 1.12.98 369