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GEK-45404
2
DESCRIPTION................................................................................................................................................... 3
APPLICATION................................................................................................................................................... 4
RATINGS............................................................................................................................................................ 5
BURDENS .......................................................................................................................................................... 6
OPERATING CHARACTERISTICS................................................................................................................. 8
CONSTRUCTION.............................................................................................................................................. 9
RECEIVING, HANDLING, AND STORAGE ................................................................................................ 10
RECEIVING.................................................................................................................................................. 10
HANDLING .................................................................................................................................................. 10
STORAGE..................................................................................................................................................... 10
ACCEPTANCE TESTS.................................................................................................................................... 10
VISUAL INSPECTION ................................................................................................................................ 10
MECHANICAL INSPECTION..................................................................................................................... 11
ELECTRICAL TESTS.................................................................................................................................. 12
Drawout Relays - General.......................................................................................................................... 12
Power Requirements - General.................................................................................................................. 12
Pickup-voltage Test ................................................................................................................................... 12
Time-voltage Test...................................................................................................................................... 12
INSTALLATION.............................................................................................................................................. 13
INSPECTION................................................................................................................................................ 13
LOCATION................................................................................................................................................... 13
MOUNTING ................................................................................................................................................. 13
CONNECTIONS........................................................................................................................................... 13
GROUND CONNECTIONS......................................................................................................................... 13
OPERATION .................................................................................................................................................... 13
ADJUSTMENTS........................................................................................................................................... 14
Target and Seal-in Unit.............................................................................................................................. 14
Voltage Setting .......................................................................................................................................... 14
Time Setting............................................................................................................................................... 15
PERIODIC CHECKS AND ROUTINE MAINTENANCE.............................................................................. 15
MAINTENANCE.............................................................................................................................................. 15
DISK AND BEARINGS ............................................................................................................................... 15
CONTACT CLEANING............................................................................................................................... 16
SERVICING...................................................................................................................................................... 16
RENEWAL PARTS.......................................................................................................................................... 16
LIST OF ILLUSTRATIONS ............................................................................................................................ 17
Cover Photo(8043180)
These instructions do not purport to cover all details or variations in equipment nor provide for every possible
contingency to be met in connection with installation, operation or maintenance. Should further information be desired
or should particular problems arise which are not covered sufficiently for the purchaser's purposes, the matter should be
referred to the General Electric Company.
To the extent required the products described herein meet applicable ANSI, IEEE and NEMA standards; but no
such assurance is given with respect to local codes and ordinances because they vary greatly.
OVERVOLTAGE RELAYS
TYPES IAV51D, IAV51K, IAV52C, IAV52D, IAV52K