Types D and DV recloser installation instructions
◆Types D and DV reclosers sense and interrupt fault currents on single-phase lines of distribution systems. The recloser automatically recloses and restores service if the fault is temporary. If the fault is permanent, the recloser locks open after the second, third, or fourth interruption depending upon its setting.
◆The recloser may be made non-reclosing (locks open after the first interruption) by actuating an external lever.
◆Sensing of fault currents is provided by a trip coil which is connected in series with the recloser contacts and can carry its rated line current. Continuous current and minimum trip values of the recloser can be changed by changing the coil.
◆Contact closing energy, as well as energy to charge the opening springs, is supplied by a high-voltage closing solenoid which is connected phase-to-ground on the source side of the recloser. A low-voltage closing solenoid, which is energized by an auxiliary AC or DC low-voltage source, is also available.
◆The opening sequences of the recloser can be all fast, all retarded, or a combination of both. In addition, one of four different time-current characteristics is available for the retarded opening sequences (Figure 1).
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User's Guide |
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Please see the document for details |
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English Chinese Chinese and English Japanese |
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2015/12/18 |
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Rev. 1 |
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MN280030EN |
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1.5 MB |
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