Page 238 - Content.pmd

A.C ùYp¥e hWôuv@TôoUo Utßm ùYp¥e ù_]úWhPo (A.C. weld-
ing transformer and welding generator)
úSôdLeLs: ClTôPj§u Ø¥®p ¿eLs ùT\ úYi¥V A±Ü §\uLs
• A.C ùYp¥e hWôuv@TôoU¬u AmNeLû[l Tt±d áßRp
• A.C ùYp¥e CVk§Wj§u SuûULs Utßm ¾ûULû[l Tt±Ùm áßRp.

A.C ùYp¥e hWôuv @TôoUo (AC welding A.C ùYp¥e ªu ®¨úVôLm A§L
transformer) Bm©VûWÙm Ïû\kR KpúPû_Ùm
CÕ ØRuûU ªu ®¨úVôLjûR ùYp¥e ùLôi¥ÚdÏm.
ùNnVd á¥V A.C ªu ®¨úVôLUôL Uôt\d
CÕ JÚ vùPl PÜu (STEP-DOWN)
á¥V JÚ YûL ùYp¥e Gk§WUôÏm. hWôuvTôoUo (Rôr YÓdÏ ªu Uôt±)
(Figs 1 & 2)
BÏm. CÕ, CÕ ØRuûU ªu ®¨úVôL
KpúPû_ (220 (A) 440 V) ùYp¥e ªu
®¨úVôL §\kR ªu Ñtß KpúPw (OCV) BL
40 Utßm 100 KphLÞd¡ûPúV Ïû\d¡\Õ.
ØRuûU ªu ®¨úVôL Ïû\kR
ªuú]ôhPjûR úRûYVô] A§L A[Ü
ùYp¥e ªuú]ôhPUôL ètßd LQdLô]
ApXÕ B«Wm LQdLô] Bm©VWôL
A§L¬d¡\Õ.

JÚ A.C ùYp¥e hWôuv @TôoUûW A.C
ØRuûU ªu ®¨úVôLm Cu± CVdL
Ø¥VôÕ.

SuûULs (Advantages)
– BWmT ùNXÜ Ïû\Ü

– TWôU¬l× ùNXÜ Ïû\Ü
– úUd]h¥d ®û[®]ôp Bod
Tô§lTûP¡\Õ. CÕ Bod lú[ô BÏm.

Bod lú[ô BÏmúTôÕ EiPôÏm
úUd]h¥d ÑZt£.

Ïû\TôÓLs (Disadvantages)

vùT`p GXdhWôÓ Utßm ûXh
úLôhúPÓ (light coated), CÚmTt\
EúXôLeLs B¡V] ùYp¥e ùNnYRtÏ
A.C ØRuûU ªu ®¨úVôLm GuTÕ A§L
ùTôÚjRUô]ûYVpX.
KpúPû_Ùm Ïû\kR Bm©VûWÙm
ùLôi¥ÚdÏm. vùT`p TôÕLôl× Øu GfN¬dûLLs
CpXôUp A.C TVuTPôÕ.

D.C Bod ùYp¥e¡u CVk§WeLs (D.C. Arc-welding machines)

úSôdLeLs: ClTôPj§u Ø¥®p ¿eLs ùT\ úYi¥V A±Ü §\uLs
• D.C ùYp¥e CVk§Wj§u AmNeLs Tt±d áßRp
• SuûULs Utßm ¾ûULs Tt±d áßRp.

úUôhPôo ù_]úWhPo ùNh (Fig 1) (Motor AC ApXÕ DC úUôhP¬]ôp úYûX
generator set)
ùNn¡u\Õ
Bod ùYp¥e¡tLôL DC ù_]úWh ùNn¡\Õ..

£_õ & Gm: @©hPo (NSQF - Revised 2022) R.T. for Ex.1.4.56 217