Eaton 150VCP-WG50 - Page 5

I.B. 32-255-1G
Page v
Effective 12/02
PAGE
5-3 Stored Energy Mechanism................................................................................................................................24
5-3.1 Operation of Stored Energy Mechanism ..............................................................................................24
5-3.2 Charging...............................................................................................................................................27
5-3.3 Closing Operation.................................................................................................................................27
5-3.4 Tripping Operation................................................................................................................................27
5-3.5 Trip Free Operation..............................................................................................................................27
5-4 Control Schemes...............................................................................................................................................27
5-4.1 Timing...................................................................................................................................................29
5-4.2 Secondary Disconnects........................................................................................................................29
5-4.3 Undervoltage Trip Device.....................................................................................................................29
5-5 Interlocks and Interfacing ..................................................................................................................................31
5-6 Levering Mechanism .........................................................................................................................................31
5-7 Operations Counter...........................................................................................................................................31
5-8 Ground Contact.................................................................................................................................................31
5-9 MOC and TOC Switch Operations ....................................................................................................................31
SECTION 6 INSPECTION, MAINTENANCE AND TROUBLESHOOTING
6-1 Introduction........................................................................................................................................................32
6-2 Frequency of Inspection and Maintenance .......................................................................................................32
6-2.1 Qualified Personnel..............................................................................................................................32
6-2.2 General Torque Guidelines ..................................................................................................................32
6-3 Inspection and Maintenance Procedures..........................................................................................................34
6-4 Vacuum Interrupter Integrity Test......................................................................................................................35
6-5 Contact Erosion and Wipe.................................................................................................................................36
6-6 Insulation...........................................................................................................................................................36
6-7 Insulation Integrity Check..................................................................................................................................37
6-8 Primary Circuit Resistance Check.....................................................................................................................38
6-9 Mechanism Check.............................................................................................................................................38
6-9.1 CloSure
TM
Test .....................................................................................................................................38
6-10 Lubrication.........................................................................................................................................................42
6-11 Troubleshooting Chart.......................................................................................................................................43
SECTION 7 RENEWAL PARTS
7-1 General .............................................................................................................................................................46
7-1.1 Ordering Instructions............................................................................................................................46