Switch Information

69 kV, 600 A, Single Pole Switch

SWITCH
CONFIG.
BIL kV
(T:T-T:G)
VOLTAGE
RATING kV
CURRENT
RATING A
OPERATING
MECHANISM
TYPE
CONTROL
VOLTAGE
OUTLINE
DRAWING
 VES
SWITCH
ORDERING
NO.
1 POLE 350 46 600 SOLENOID 120 VAC 1002864 1002863G1

 

This switch is used to short insertion resistors on an arc furnace having a 69 kV primary voltage.   This switch is solenoid operated because to prevent overheating the resistors the resistors must be shorted at 100 milliseconds after being energized.  Only the solenoid operated switch has the precision to meet this timing requirement. This switch contains one form A (e.g. normal open) and one form B (e.g. normal closed) auxiliary contact.  A control for operating this switch is shown here.  The repair parts except for the pull rods and the line-to-ground insulators are the same as for the 34 kV switch shown here.

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