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Published byMerry Casey Modified over 9 years ago
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Electrical Apparatus Dan Melkey Power Line Supply “This workforce solution was funded by a grant awarded by the U.S. Department of Labor’s Employment and Training Administration. The solution was created by the grantee and does not necessarily reflect the official position of the U.S. Department of Labor. The Department of Labor makes no guarantees, warranties, or assurances of any kind, express or implied, with respect to such information, including any information on linked sites and including, but not limited to, accuracy of the information or its completeness, timeliness, usefulness, adequacy, continued availability, or ownership.” This work by Alpena Community College’s Sustainable Solutions for Northeast Michigan, a Department of Labor, TAACCCT funded project, is licensed under the Creative Commons Attribution 4.0 International License. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
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Types of Reclosers
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RECLOSER CONTROL Hydraulic Vs Electronic
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HYDRAULIC RECLOSER OPERATION
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Fast Curve
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Contacts Reclosing
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Delayed Curve
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Lock Out
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Type H Maintenance: http://www.cooperindustries.com/content/dam/publi c/powersystems/resources/library/280_ReclosersCo ntrols/S280103.pdf Type L Maintenance: http://www.cooperindustries.com/content/dam/publi c/powersystems/resources/library/280_ReclosersCo ntrols/S280151.pdf
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ELETRONIC RECLOSERS Recloser + Control
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INTERRUPTER MEDIUM Oil Vs Vacuum
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Oil Interruption
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Vacuum Interruption
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SINGLE PHASE vs THREE PHASE vs TRIPLE/SINGLE
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SINGLE PHASE Can be Hydraulic or Electronic
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THREE PHASE (Gang Operated)
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Three-Phase TRIPLE/SINGLE
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Mode A: Three phase trip, three phase lockout Mode B: Single phase trip, three phase lockout Mode C: Single phase trip, single phase lockout Triple-Single
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RECLOSER DIELECTRIC INSULATION Oil Vs Air Vs Solid Vs SF6
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Oil Dielectric
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WE/VWE Closing Coil Recloser requires voltage from source side for closing Closing coil connected between bushings 3 & 5 High voltage closing vs low voltage closing
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Air Dielectric
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Solid Dielectric
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SF6 Dielectric
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Selection Factors System Voltage Maximum Fault Current Maximum Load Current Minimum Fault Current Single Phase or Three Phase
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Operation In single/single mode, pulling down one yellow handle trips and locks out just that unit. To close, push yellow handle up then hit close button in control. Non-reclosing will cause just a faulted phase(s) to lockout. HLT causes all phases to lockout if there is a fault.
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Installation Control runs off AC which needs to be brought into the F6 control. Control has a 24V battery for backup. Ground the F6 control cabinet.
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If Recloser Fails to Respond Check “ALARM” functionality for problem information Inspect for closing voltage Check control cable connections Verify yellow handle is up
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Substation Equipment
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QUESTIONS ???
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