1.4
1.4-06
BREAKER
ୟഗ
NF1:ဣଚگუഘୟഗ
֡ፕ
8/!ൽᄩդLjഄݣዃڟ٪ݣ࿋ዃDŽ2/:Džă
ୟഗ၄ሞᅙጚԢ৽ჃLjᅜሏႜă
2/5/8!֡ፕຩႾǖ؏
7. Remove the racking handle and replace it into its storage
locaƟon (Fig. 1.9).
Now the breaker is ready to operate.
ǖ؏֡ፕ࿋ዃ
؏ዐڦୟഗ࿋ዃ ዷᄲጎዃ ޤዺጎዃ ୟഗࠀీ ୟഗோڦ࿋ዃ
ౚࢇ ౚࢇ ᅜཚࡗႁۉۯݛ๕֡ፕୟഗLjጚԢ߾ፕ ࠲Կ
ݴ ౚࢇ
ᅜཚࡗႁۉۯݛ๕֡ፕୟഗ
࠲Կ
ᅜ֪ࢅᄓୟഗࢅۉୟ֡ፕ
ݴ ݴ
ኻీཚࡗႁݛ๕֡ፕୟഗ
࠲Կ
փీୟഗٗୟഗ߰ዐൽ
ݴ ݴ
ኻీཚࡗႁݛ๕֡ፕୟഗ
ٶ
ᅜୟഗٗୟഗ߰ዐൽ
1.4.7 Sequence of operaƟon: CasseƩe
DPOOFDUFEDŽথDž
UFTUDŽ֪Dž!
EJTDPOOFDUFEDŽDž
XJUIESBXODŽ؏Dž
Table 1.21: CasseƩe OperaƟng PosiƟons
Circuit Breaker
Pos. in the CasseƩe
Primary Disconnects Second. Disconnects Circuit Breaker FuncƟonality
Circuit Breaker Door
PosiƟon
CONNECTED
TEST
DISCONNECTED
WITHDRAWN
engaged
disengaged
disengaged
disengaged disengaged
disengaged
engaged
engaged
closed
closed
closed
open
circuit breaker may be operated both mechanically
or electrically ready for service
circuit breaker may be operated both mechanically or electrically
circuit breaker and control circuit operaƟons may be tested and veriĮed
circuit breaker may be operated only mechanically
circuit breaker may not be removed from the circuit breaker compartment
circuit breaker may be operated only mechanically
circuit breaker may be removed from the circuit breaker compartment
$
%
!2/:ǖᄩդ٪ݣ࿋ዃ
Gjh/!2/:;!Sbdljoh!Iboemf!Tupsbhf!Mpdbujpo
!2/21ǖᄩդᆩ
Gjh/!2/21;!Sbdljoh!Iboemf!vtf
!2/22ǖཉࠓஅۤ࿋ዃ
B*!ཉࠓڔӱஅۤ࿋ዃ
C*!ཉࠓ࿋ዃኸ๖
Gjh/!2/22;!Sbdljoh!Tdsfx!Mpdbujpo
B*!Sbdljoh!Tivuufs!tdsfx!mpdbujpo
C*!Sbdljoh!qptjujpo!joejdbujpo
!2/23ǖୟഗ࿋ᇀྼႪ࿋ዃ
Gjh/!2/23;!Djsdvju!Csfblfs!jo!
Nbjoufobodf!Qptjujpo