Eaton VCP-W, Инструкции по установке, эксплуатации и техническому обслуживанию, Страница: 4 / 81

IB131006EN
Page v
Effective 07/2017
SECTION 5: DESCRIPTION AND OPERATION
5-1 Introduction ................................................................................................................................................ 25
5-2 Interrupter Assembly .................................................................................................................................. 25
5-2.1 Vacuum Interrupter .................................................................................................................. 25
5-2.2 Contact Erosion Indication ....................................................................................................... 26
5-2.3 “T” Cutout Loading Spring Indicator ......................................................................................... 26
5-2.4 Contact Wipe and Stroke ......................................................................................................... 26
5-2.5 Phase Barrier ........................................................................................................................... 26
5-3 Stored
Energy Mechanism ........................................................................................................................ 28
5-3.1 Operation of Stored Energy Mechanism ..................................................................................... 28
5-3.2 Charging ....................................................................................................................................... 31
5-3.3 Closing Operation ....................................................................................................................31
5-3.4 Tripping Operation ...................................................................................................................31
5-3.5 Trip Free Operation ...................................................................................................................... 31
5-4 Control Schemes .................................................................................................................................31
5-4.1 Timing .....................................................................................................................................35
5-4.2 Secondary Disconnects ...........................................................................................................35
5-4.3 Undervoltage Trip Device ........................................................................................................35
5-5 Interlocks and Interfacing .....................................................................................................................36
5-6 Levering Mechanism ............................................................................................................................36
5-7 Operations Counter ..............................................................................................................................36
5-8 Ground Contact....................................................................................................................................36
5-9 MOC and TOC Switch Operations .......................................................................................................36
SECTION 6: INSPECTION, MAINTENANCE AND TROUBLESHOOTING
6-1 Introduction ..........................................................................................................................................37
6-2 Frequency of Inspection and Maintenance ...........................................................................................37
6-2.1
Qualified Personnel ...............................................................................................................37
6-2.2 General Torque Guidelines ....................................................................................................38
6-3 Inspection and Maintenance Procedures .............................................................................................38
6-4 Vacuum Interrupter Integrity Test .........................................................................................................40
6-5 Contact Erosion and Wipe ...................................................................................................................41
6-6 Insulation .............................................................................................................................................41
6-7 Insulation Integrity Check .....................................................................................................................42
6-8 Primary Circuit Resistance Check ........................................................................................................43
6-9 Mechanism Check ...............................................................................................................................43
6-9.1 CloSure
TM
Test .......................................................................................................................43
6-10 Lubrication ...........................................................................................................................................47
6-11 Troubleshooting Chart .........................................................................................................................50
6-12 End of Life Procedure…………………………………………………………………………………………...50
6-13 Failure Reporting…………………………………………………………………………………………………50
SECTION 7: RENEWAL PARTS
7-1 General ..............................................................................................................................................51
7-1.1 Ordering Instructions .............................................................................................................51
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