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CWhûP EúXôLj ÕûQ NôokR A§L ThûPVô]Õ Yû[kÕ JÚ BoUfãûWj
ªuÑûU ®Ó®l× (ûTùUhPôXõd KYo Rôe¡l ©¥j§ÚdÏm JÚ h¬l ÄYûWf
úXôÓ ¬Äv) AûUl×Pàm Es[Õ. ÑZt± BoUfãûW ùNôXõ]ôn¥u LôkRl
×Xj§tÏs ùLôiÓ YÚ¡\Õ.
ùNôXõ]ônPô]Õ JYo-úXôÓ ApXÕ
§¼ùW] GtTÓm `ôoh Nodëh
ªuú]ôhPm 700 NRÅR A[®tÏf
ùNpÛmúTôÕ R²lThP Øû\«p
ØÝûUVôLf ùNVpThÓ BoUfãûW
Ruàs DodÏm YûL«p
Y¥YûUdLlThÓs[Õ.
Nodëh ©úWdL¬u ®Ó®lTô]Õ (tripping)
BWmTd LhP YûL ªuú]ôhP A[Ü (130
ØRp 400 NRÅRm YûW) ùYlTm NôokR
SPY¥dûLVôp ¨LrjRlùTß¡\Õ.
CûP¨ûX YûL ªuú]ôhP A[Ü 400
ØRp 700 NRÅRm YûW ùYlTm Utßm
LôkRm NôokR SPY¥dûLVôp
¨LrjRlùTß¡\Õ. ªuú]ôhP A[Ü 700
ªuú]ôhPUô]Õ £pYo ¡WôûTh¥]ôp NRÅR A[ûYÙm Rôi¥f ùNpÛmúTôÕ
ùNnVlThP CWiÓ LôuúPdh Øû]Ls ØÝûUÙm LôkRm NôokR SPY¥dûLVôp
Y¯VôL ùNp¡\Õ. C§p JÚ LôuúPdh UhÓúU ¨LrjRlùTß¡\Õ.
Øû] ¨ûXVô]RôLÜm Utù\ôuß
MCB-L°u ©¬ÜLs (Categories of MCBs)
SLWdá¥VRôLÜm CÚdÏm.
CuúPôLl (Indo Kopp) úTôu\ ϱl©hP
CWiÓ LôuúPdh Øû]LÞdϪûPúV
EtTj§Vô[oLs MCB-dLû[ ‘L’ º¬v, ‘G’
Es[ CûPùY°«p HtTÓm ®pY¥Yj
º¬v, ‘DC’ º¬v G] êuß ®RUô]
¾l©ZmûTd LhÓlTÓjRÜm ®ûWkÕ
©¬ÜL°p EtTj§ ùNn¡\ôoLs.
APdLÜm ¾l©Zm× HtTÓm AWeûL ê¥V
¨ûX«p AV² Uôt\jûRd LhÓlTÓjÕm ‘L’ º¬v MCBs-dLs (‘L’ series MCBs)
BodfãhLs CÚdÏm. Bodfãh¥p ‘L’ º¬v MCB-dLs ùW³v¥q (Resistive)
YôÙdLs ùY°úV\ £u]g£ß úXôÓPu á¥V ªuÑtû\l TôÕLôdL
CûPùY°LÞPu á¥V EúXôL YûXl Y¥YûUdLlThÓs[].
©u]p AûUdLlTh¥ÚdÏm.
CûY ùLnNoLs, KYuLs Utßm
MCB-dL°p JYo-úXôÓ Utßm `ôoh ùTôÕYô] ûXh¥e Øû\LÞdÏ £\kRÕ.
Nodëh¥tÏ G§WôL ùNVpTP ùYlTm
‘G’ º¬v MCBs- dLs (‘G’ series MCBs)
Utßm LôkRm NôokR ®Ó®l× (ùRoUp
úUdù]h¥d ¬Äv) AûUl× CÚdÏm. ‘G’ º¬v MCB-dLs CuPd¥q (inductive)
ùYlTm NôokR ûTùUhPôXõd úXôÓPu á¥V ªuÑtû\l TôÕLôdL
ThûPVô]Õ JYo-úXôÓ BY§XõÚkÕ Y¥YûUdLlThÓs[]. ‘G’ º¬v MCB-dLs
TôÕLôd¡\Õ. `ôoh Nodëh ªuú]ôhPm úUôhPôoLs, Ho Li¥`uLs,
Utßm JYo-úXôÓ BY§XõÚkÕm 100 ûLdLÚ®Ls, úaúXô_u ®[dÏLs
NR®Rj§tÏm úUXô] TôÕLôlûT LôkRm úTôu\Ytû\l TôÕLôdL ELkRÕ.
NôokR ùNôXõ]ônÓ RÚ¡\Õ. ‘DC’ º¬v MCB-dLs (‘DC’ series MCBs)
úYûX ùNnÙm ®Rm (Working) ‘DC’ º¬v MCB-dLs DC ªu]ÝjRm 220
úYôph YûW TVuTÓjR ELkRûY. CRu
¨oQ«dLlThP CVpTô] ªuú]ôhP
رÜj Rôeϧ\u 6kA YûW CÚdÏm.
A[Ü 130 NRÅRj§tÏm úUXôL
CRu h¬l©e ÏQô§NVm ‘L’ Utßm ‘G’
A§L¬dÏmúTôÕ ùYlT¨ûX
º¬v MCB-dLû[l úTôuú\ CÚdÏm. DC
A§L¬lTR]ôp ûTùUhPôXõd
LuhúWôpLs, CW«p Gg´uLs, ¼Np
TYo : GXdh¬μVu (NSQF - Revised 2022) R.T. Ex.No. 1.7.62 205
