Protection Engineering Basics and Schemes Protection Engineering | Page 66

2.2.3 Change over Switch
Is change over position switch. It is basically a
combination of make and break position.
Change over Switch
2.2.4 Delay Switches
In this type of switches, time delay is introduced in these
switches, these switches are needed where we need
time delay for breaking and completion of switches.
As you see the above switch is Time delay make/pick up
switch
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