| 摘要 |
FIELD: electricity.SUBSTANCE: system of connection to current-carrying lines consisting of current-carrying shell line, first current-carrying line, second current-carrying line and third current-carrying line includes: first control module capable to connect with the first current-carrying line and stay in serial connection with first electricity receiver in the well, connected to the second current-carrying line; second control module capable to connect with the second current-carrying line and stay in serial connection with second electricity receiver in the well, connected to the first current-carrying line; third control module capable to connect with the first current-carrying line and stay in serial connection with third electricity receiver in the well, connected to the third current-carrying line; and fourth control module capable to connect with the first current-carrying line and stay in serial connection with fourth electricity receiver in the well, connected to current-carrying line of the shell. When the first control module feeds current to the first electricity receiver in the well, second, third and fourth control modules feed uncontrolled current to the second, third and fourth electricity receivers in the well, respectively.EFFECT: efficient power supply to well devices, particularly reduced number or complete elimination of electric power receivers of well devices, fed by uncontrolled current or obtaining electric power in other uncontrolled ways, due to isolation of current fed to receiver.18 cl, 6 dwg |
