Page 201 - Electrician -1st Year - TT

ùYlTSõûX Utßm JlTPoj§ (Tempera- Nôo´e¡u úTôÕ CÚdÏm ªu]ÝjRjûR
ture and specific gravity) ®P ¥vNôo´e¡u úTôÕ CÚdÏm

GXdhúWôûXh¥u ùYlT¨ûX 27ºC «Ûm ªu]ÝjRm Ïû\YôL CÚlTR]ôp Yôh-
Utßm JlTPoj§ 1.250 0.010 BLÜm aYo ®û]§\]ô]Õ GlúTôÕm Bm©Vo-
TWôU¬dLlTP úYiÓm. aYo ®û]§\û] ®Pd Ïû\YôLúY
A§L ùYlT¨ûXVô]Õ, A§LUôL NpúTh CÚdÏm.
UôÜ T¥YRtÏm Tô£h¥q ©ú[hL[ó Yôh - aYo ®û]§\u =
Yû[YR\óÏm LôWQUôL CÚd¡\Õ.
Ah ®û]§\u x ¥vNôo´u
Ïû\TôÓLs (Defects)
úTôÕs[ NWôN¬ úYôph
• L¥] NpúTh UôÜ T¥Rp
Nôo´u úTôÕs[ NWôN¬
• ©ú[hLs Yû[Rp
úYôph
• Tϧ ÏßdÏfÑtß
L¥] NpúTh UôÜ T¥Rp (Hard sulphation):
Watt - hour efficiency
ªuLXjûR A[®tÏ A§LUôL ¥vNôo_ó
ùNnYRôÛm, ¥vNôo_ó B] ¨ûXVõp ¿iP = AH efficiency × Average volts on discharge
SôhLs ûYj§ÚlTRôÛm CWiÓ Average volts on charge
GXdhúWôÓL°Ûm NpúThPô]Õ
ªuLXj§u Nôo´e Utßm ¥vNôo´e
L¥]Uô] UôÜdLh¥VôLl T¥kÕ
ÑZt£«u úTôÕ CPmùTßm úY§«Vp
ªuLXj§u EsªuRûPûV A§L¬dLf
Uôt\ SPY¥dûLLs EeLs TôoûYdLôLd
ùNn¡\Õ. Cd L¥] NpúTh UôÜ T¥Rp
¸úZ ùLôÓdLlThÓs[Õ.
Ïû\TôhûP h¬d¡s Nôo_ó
Gu\ûZdLlTÓm Ïû\kR A[®Xô] ¨dLp CÚm× ªuLXm (The nickel iron cell)
ªuú]ôhPjûR ¿iP úSWm ÃfNôo_ó (Fig 8)
ùNnYRu êXm ¿dL Ø¥Ùm. Fig 8
©ú[hLs Yû[Rp (Buckling) : ARõL
A[®Xô] Nôo_õe, ¥vNôo_õe, Øû\Vt\
GXdhúWôûXh Utßm A§L ùYlT¨ûX
LôWQUôL GXdhúWôÓLs Yû[YÕ ‘Td°e’
Guß A±VlTÓ¡\Õ.
Tϧ ÏßdÏfÑtß (Partial short) :
©ú[hL°XõÚkÕ (GXdhúWôÓL°XõÚkÕ)
ùLôhÓ¡\ LNÓLs Tô£h¥q Utßm
ùSLh¥q GXdhúWôÓLÞd¡ûPúV
ÏßdÏfÑtû\ EiPôdÏ¡u\]. CRu
LôWQUôL ϱl©hP AkR ªuLXm
¥vNôo´e LôWQUôL A§L ùYlTjûR
HtTÓjÕ¡\Õ. CmUô§¬Vô] ªu
LXj§tÏl T§XôL קV Juß Uôt\lTP Ød¡Vl TϧLs
úYiÓm.
• úSoªu RLÓ (Positive plate)
®û]§\u (Efficiency): CÕ CWiÓ
Y¯L°p LQd¡PlTÓ¡\Õ • G§oªu RLÓ (Negative plate)
• Bm©Vo-aYo ®û]§\u • ª]óTÏ LûWNp (Electrolyte)
• Yôh-aYo ®û]§\u • ùLôsLXu (Container)
Ah ®û]§\u = AÜh×h Ah ¥vNôow • ©¬lTôuLs (Separators)

Cu×h Ah Nôow úSoªu RLPô]Õ ¨dLp ûahWôdûNÓ
Output in AH discharge ¥ël Utßm ARu ÁÕ Õû[ÙûPV G@Ï
AH efficiency =
Input in AH charge SôPô®]ôp Ñt\lThÓ AÕ G@Ï Lm©«p
ûYdLlTh¥ÚdÏm.

TYo : GXdh¬μVu (NSQF - Revised 2022) R.T. Ex.No. 1.6.57 181