Page 189 - Electrician 1st year - TP

TYo (Power) T«t£ 1.5.56
ªuT¦Vô[o þ AC ªuÑtßLs (AC Circuits)

3 úTv 4 Lm©Ls AûUl©p JÚ úTv³p ÏßdÏ Ñtß HtThÓ®hP
¨ûX«p Ut\ CWiÓ úTvL°u ªuú]ôhPm Utßm ªu]ÝjRjûR
A[®Pp Utßm SpX ¨ûX«Ûs[ AûUl×Pu Jl©ÓRp (Measure
current and voltage of two phases in case of one phase is short circuited in three phase
four wire system and compare with healthy system)
úSôdLeLs: ClT«t£«u Ø¥®p ¿eLs ùT\ úYi¥V §\uLs
• ªuÑtû\ CûQjÕ úNôRû] ùNnVÜm
• SpX ¨ûX«Ûs[ Ñt±p ªuú]ôhPm Utßm ªu]ÝjRjûR A[®Pp
• JÚ úTv³p A§LTÞ/ ÏßdÏ Ñtß HtTÓm úTôÕ Ut\ CWiÓ úTvL°u
¨ûXûV N¬TôojRp
• CWiÓ ¨ûXL°Ûm ªuú]ôhPm Utßm ªu]ÝjRjûR T§Ü ùNnRp.

úRûYVô]ûYLs (Requirements)
LÚ®Ls/NôR]eLs/CVk§WeLs
(Tools / Equipment) • 3 , Nlû[ úTôoÓ 3 , 4 Lm©Ls 1 No.
• MI AmÁhPo 0 - 10A 2 Nos. ùTôÚhLs (Materials)
• MI AmÁhPo 0 - 20A 1 No. • SP Ñ®hf 250V / 16A 2 Nos.
• MI úYôph ÁhPo 0 - 300V 3 Nos. • CûQdÏm Lm©Ls úRûYVô] A[Ü
• TÞ 240V/ 1500 W 4 Nos. • TPIC Ñ®hf 415V / 16A 1 No.
ùNnØû\
SûPØû\«p úTv ûXû] ÏßdÏ Ñtß ùNnV Ø¥VôÕ. AqYôß ùNnYÕ
ATôVLWUô]Õ. úUÛm ªuÑtû\ ¨ßj§ ®Óm. ÏßdÏ Ñtß ¨ûXûV EÚYôdL
TÞ ªuú]ôhPjûR CÚ UPeLôd¡ JÚ ÏßdÏ Ñtß ¨ûXûV JÚ úT³p
EiPôdLXôm.

1 Fig þ1p Lôi©jÕs[T¥ ªuÑtû\ Utßm ªu]ÝjRjûR AhPYûQ«p
CûQdLÜm. T§Ü ùNnVÜm.
33 úTv Nlû[ûV “OFF” ùNnÕ Ñ®hf SW
2
“ON” ùNnVÜm.
43 úTv Nlû[ûV “ON” ùNnÕ
ªuú]ôhPm Utßm ªu]ÝjR
A[ÜLû[ AhPYûQ«p T§Ü
ùNnVÜm.
5 Nlû[ûV “OFF” ùNnÕ YV¬eûL ©¬dLÜm.
©u]o Aû]jÕ ùTôÚhLû[Ùm
ETLWQeLû[Ùm §Úl© ùLôÓjÕ
®PÜm.
6 EeLs úYûXûV T«tßS¬Pm Lôi©jÕ
23 úTv Nlû[ûV “ON” ùNnÕ ©\Ï SW N¬TôojÕd ùLôs[Üm.
1
Ñ®hfûN “ON” ùNnVÜm. ªuú]ôhPm ¾oÜ (Conclusion): __________________________.
AhPYûQ 1

Y.Gi SW - ON SW - ON & SW ON
1 1 2
1 A 1 V 1 A 1 V 1
2 A 2 V 2 A 2 V 2
3 A V A V
3 3 3 3
165