iiiINSTALLATION, OPERATION AND MAINTENANCE INSTRUCTIONS MN285006EN March 2018
Contents
DISCLAIMER OF WARRANTIES AND LIMITATION OF LIABILITY ................................... II
Safety instructions .............................................................................. iv
PRODUCT INFORMATION ................................................................... 1
Introduction ....................................................................................1
Acceptance and initial inspection ...................................................................1
Handling and storage .............................................................................1
Standards .....................................................................................1
Quality standards. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1
Product description ..............................................................................1
VFI switchgear operation ..........................................................................1
Electronic control ................................................................................2
Loadbreak switch. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2
Vacuum fault interrupters .........................................................................2
Bushings ......................................................................................2
Cabinet construction .............................................................................3
Standard features ...............................................................................3
Interrupter duty cycle ............................................................................3
Switch test sequence ............................................................................3
Finish .........................................................................................3
Nameplate .....................................................................................3
Operating handles ...............................................................................3
Weight ........................................................................................4
Special certifications .............................................................................4
INSTALLATION PROCEDURE ................................................................ 4
OPERATION .............................................................................. 5
Application .....................................................................................6
Vacuum fault interrupters .........................................................................6
LOADBREAK SWITCH ...................................................................... 6
MAINTENANCE INFORMATION .............................................................. 6
Maintenance inspection procedure ..................................................................6
Internal inspection and repair ......................................................................7
Insulating fluid maintenance .......................................................................7
Frequency of maintenance ........................................................................8
Types of fluid samples ............................................................................8
Fluid sampling guidelines .........................................................................8
Fuid fill guidelines ...............................................................................9
Fluid testing ....................................................................................9
Replacement parts .............................................................................10
TESTING .................................................................................11
High-potential withstand testing of vacuum interrupters ................................................11
Trip and control testing ..........................................................................11