Siemens 8DJ20

Operation
 23(5$7,21'-'-
12.1 Closing the switch-disconnector
Fig. 42: Transformer feeder:,IWKHUHGDQGEODFNEDULVYLVLEOH
WKHVZLWFKGLVFRQQHFWRUZDVWULSSHGE\DIXVHOLQN
RUDVKXQWUHOHDVHVHH6HFWLRQ 3DJH 
)RURSHUDWLRQRIWKHWKUHHSRVLWLRQVZLWFKWKHUHLVDQ
RSHUDWLQJOHYHUZLWKEODFNKDQGOHDYDLODEOH
Danger!
,IWKHWKUHHSRVLWLRQVZLWFKGLVFRQQHFWRULVRSHUDWHG
ZLWKLQVXIILFLHQWLQVXODWLQJJDVSUHVVXUHWKLVFDQ
FDXVHDQDUFIDXOWZKLFKZLOOHQGDJHUWKHOLIHRI
SUHVHQWSHRSOHDQGGDPDJHWKHVZLWFKJHDU
Õ 'RRQO\VZLWFKLIWKHUHDG\IRUVHUYLFHLQGLFDWRULVLQ
WKHJUHHQDUHD
Õ ,IWKHUHDG\IRUVHUYLFHLQGLFDWRULVLQWKHUHGDUHD
SOHDVHREVHUYH6HFWLRQ 3DJH 
Õ &KHFNUHDGLQHVVIRUVHUYLFH
Õ 5HPRYHSDGORFNRSWLRQDO
Õ 3XVKOHYHURIORFNLQJGHYLFHLIDYDLODEOHWRWKHOHIW
DQGKROG
Õ ,QVHUWRSHUDWLQJOHYHULQWRRSHQVZLWFKLQJJDWHDW
opSRVLWLRQ
Õ 0RYHOHYHUUDSLGO\WRo,p
Õ 5HPRYHOHYHU
Õ 3XVKOHYHURIORFNLQJGHYLFHLIDYDLODEOHWRWKH
GHVLUHGSRVLWLRQDQGIL[LWWKHUHZLWKWKHSDGORFN
RSWLRQDO/HYHURIORFNLQJGHYLFHon the left:HDUWKLQJ
DQGGHHDUWKLQJLVSRVVLEOHin the centre:QR
VZLWFKLQJRSHUDWLRQSRVVLEOHon the right:WKH
VZLWFKGLVFRQQHFWRUFDQEHRSHUDWHG
1RZWKHIHHGHULVFORVHG7KHVZLWFKSRVLWLRQ
LQGLFDWRULQWKHPLPLFGLDJUDPLVLQo&/26('p
SRVLWLRQ7KHIROORZLQJILJXUHVKRZVWKHOHYHURIWKH
ORFNLQJGHYLFHLQWKHFHQWUHSRVLWLRQLHQR
VZLWFKLQJRSHUDWLRQVDUHSRVVLEOH 