Inverse Time Delay Trip; Inverse Time Delay Tripping Curves; Hand Retrieve Undervoltage Trip - Westinghouse F-11 Instructions Manual

FIG. 15. Inverse Time Delay Trip
HOLE FOR
MOUNTING
BOLT
LEVER
14
MAGNET CIRCUIT
TRIPPING
SPRING
ARMATURE
FIG. 17. Hand Retrieve Undervoltage Trip
STD.
--
SPCL. LOW TEMP.
---
OIL
3.0
1.
MINIMUM TIME DELAY
2. 50% TIME DELAY
I
3. MAX MUM TIME DELAY
TEMP.
I
I
II
1
5 10 20
40
CURRENT AMPERES
100
400
800
CURRENT PER CENT
FIG. 16. Inverse Time Delay Tripping Curves
SHAFT
RETRIEVING HANDLE
OIL
30 ° C.
70 100
1400 2000