Page 307 - Electrician -1st Year - TT
P. 307
vúLu¥Vm (Scandium) Utßm ûPv êu\ôYÕ ÕYdÏm Es GXdhWôPôL
©úWô£Vm (Dysprosium) úTôu\Yt±u áhÓ úYûX ùNn¡\Õ.
ϱl©hP GûXhPôL TVuTÓjRlTÓ¡\Õ.
Bod ¥ël©u JÚ Øû]«p Ballast-«XõÚkÕ
CkR AúVôûPhv (iodides) ®[d¡u
ùT\lTÓm A§L §\kR Ñtß ªu]ÝjRm
¨\UôûX (spectral) §\u ®¨úVôLjûR
ÕYdÏm GXdhWôÓ Utßm CVdÏm
LhÓlTÓjÕ¡\Õ.
GXdhWôÓ B¡VYt±tÏ CûPúV JÚ Bod
EiPôdÏ¡\Õ. ®[dÏ ØÝ AÜh×hûP
Fig 2
AûPkRÜPu JÚ ûT-ùUhPôXõd (bi-metal-
lic) Ñ®hf probe-ûV ÏßdÏ Ñtß HtTÓj§
ÕYdÏm BodûV Õi¥d¡\Õ.
Õ¥l× (pulse) ÕYdLm Øû\ 'MH'
®[dÏL°p ÕYdÏm probe GXdhWôÓ
CpûX. Õ¥l× ÕYdLm JÝeÏ Øû\«p
ELN2488C2 A§L ªu]ÝjR Õ¥l× (ϱlTôL 3 ØRp 5
¡úXô úYôph) úSW¥VôL CVeÏm
ÕYdLlTÓ¡\Õ. úUÛm probe Utßm
Esú[ Es[ Bod ¥ël©p CWiÓ GXdhWôÓLÞdÏ ùNÛjRlThÓ ®[dÏ
GXdhWôÓLÞdÏ CûPúV JÚ Bod¡p ûTùUhPôXõd Ñ®hf CkR Øû\«p
EiPôd¡ Jüõ EtTj§ ùNnVlTÓ¡\Õ. Es ¿dLlTÓ¡\Õ.
Bod ¥ël quartz-Bp ùNnVlThÓs[Õ. probe GXdhWôÓ CpXôRRôp Bod ¥ël©u
ExQ ¨ûX 1000°C YûW«Ûm AÝjRm Ø¥®p pinch (or seal) TWl× Ïû\YRôp ØÝ
3 ApXÕ 4 Y° UiPXUôL (atmosphere) AÝjRm A§LUôL ùYlT CZl× Ïû\¡\Õ.
CÚdÏm.
'MH' ®[d¡u SuûULs (Advantages of MH
'MH' ®[dûL ÕYdÏYRtÏ A§LUô] Lamps)
ÕYdÏm ªu]ÝjRjûR GXdhWôÓLÞdÏ
CûPúV ùNÛj§ YôÙûY AV²VôdLm (ion- • ªL £\kR ¨\jûR A°d¡\Õ.
ize) ùNnVlTÓ¡\Õ. ùY° Eû\ ùTôÕYôL • Lf£RUô] A[Ü (Compact Size)
úTôúWô£XõúLh (Borosilicate) LiQô¥Vôp
• TpÕû\ YpXûU (Versatility)
ùNnVlThÓs[Õ.
• A§L §\u (High Efficiency)
EúXôL 'HL' ®[dûL ùRPeÏm Øû\
(Starting Metal Halide Lamps) : 'MH' ®[dûL • NôRLUô] ÑtßfãZp ®û[Ü (Positive En-
ÕYdL CWiÓ Øû\Ls TVuTÓjRl vironmental Impact)
TÓ¡\Õ. AûY probe ÕYdLm Utßm Õ¥l× • ¿iP BÙh LôXm (Long Life)
(pulse) ÕYdLm.
• SpX RWm YônkR Jüõ (Better Light Quality)
¥ël©Ûs[ BodûL AV²VôdLm (ignite)
• Y¥YûUdLd á¥V YiQm (Designable
ùNnVlThÓ probe ÕYdLm Øû\«p
Color)
TVuTÓjRlTÓ¡\Õ.
• ªLÜm Øuú]±V ùRô¯pÖhTm (The
C§p êuß GXdhWôÓLs Es[Õ. CWiÓ Most Advanced Technology)
GXdhWôÓLs BodûL TWôU¬dLÜm.
TYo : GXdh¬μVu (NSQF - Revised 2022) R.T. Ex.No. 1.9.80 287
