Page 110 - Electrician -1st Year - TT
P. 110
ApXÕ KTu ùW³vhPôo CûQdLl G]úY, ªuRûPLs R , R , R B¡VûYL°p
1 2 3
Th¥ÚdÏm ùTôÝÕ LôhÓ¡\Õ. (Fig 6). ùNpÛm LWihPô]Õ, ùNpX úYi¥V
LWihPôL CpXôUp ªL ªLd Ïû\Yô]
A[YôLúY CÚdÏm.
CR]Õ Ø¥Yô]Õ NôRôWQUôL ùNpX
úYi¥V LWih¥u U§lûTl úTôp
ètßdLQdLô] UPeÏ A§LUô]
LWihPô]Õ, CkR Nôoh Nodëh¥p
ùNpÛm.
Nôoh Nodëh HtTÓm ùTôÝÕ, LWih
B]Õ TYo úNôo³u Tô£¥q
Øû]«XõÚkÕ CûQl× YVoL°u Y¯VôL
TYo úNôo³u ùSL¥q Øû]dÏ úXô¥u
Y¯VôLf ùNpXôUp úSW¥VôLj §Úm©
YkÕ®Ó¡\Õ. (Fig 8)
TdL CûQl©p ÏßfÏf Ñtß Utßm
§\kR Ñtß (Shorts and opens in parallel circuits):
ªuÑt±p A¥dL¥ HtTPd á¥V CWiÓ Nôoh NodëhPô]Õ AfÑt±p Es[
TÝÕL[ôYÕ, ETLWQeLs, ARôYÕ úL©sLs
• ÏßdÏ Ñtß (short circuit) Ñ®hÑLs úTôu\ûYLs G¬kÕ
®Óm ¨ûX HtTPd LôWQUô¡\Õ.
• §\kR Ñtß (open circuit)
Nodëh¥p CûQdLlThÓs[
TdL CûQl©p HtTÓm ÏßdÏ Ñtß
(Shorts in parallel circuit) : Fig 7-p ‘a’ Utßm ‘b’ ETLWQeLs, G¬kÕ ®ÓYûR R®olTRtLôL
TôÕLôl× ETLWQeL[ô] @lëv (fuse)
×s°LÞd¡ûP«p Es[ Nôoh-I
Nodëh ©úWdLo úTôu\ûYLû[l
LôhÓ¡\Õ.
TVuTÓj§ NodëhûP §\dL ùNnV
ûYdLXôm. (Fig 9 a & 9b).
úTWXp Nodëh¥û]l TôÕLôlTRtÏ
TVuTÓjRlTÓm @lëv-I Nodëh¥p
ùUôjR LWihÓm ùNpÛªPj§úXô
(ApXÕ) JqùYôÚ ¡û[fÑt±úXô
CûQdLlTP úYiÓm. (Fig 10a & b)
TdL CûQl©p HtTÓm §\kR Ñtß
CÕ, Nodëh¥u ªuRûPûV éwVm (zero)
(Opens in parallel circuit) : ùTôÕYô] ûX²p
A[®tÏ Ïû\lTRtÏ LôWQUô¡\Õ.
A Gu\ ×s°«p ªuÑtß §\kR ¨ûX«p
BûLVôp, ‘ab’ ×s°LÞd¡ûP«p Es[ Es[Õ GuTûR (Fig 11)-p
úYôphúPw-B]Õ H\dÏû\V éwVUôL LôhPlThÓs[Õ. AÕ GkR LWihÓm
(zero) CÚdÏm (Km ®§«uT¥)
90 TYo : GXdh¬μVu (NSQF - Revised 2022) R.T. Ex.No. 1.3.31 & 32
