Eaton VCPW-HD Instruction Booklet page 5

38 kV Type VCPW-HD Simple Electrical
Ground & Test Device (SEG&TD) lower
terminal instruction booklet
Figure 11. Typical two cylinder lock (38 kV SEG&TD Lock #1
shown with one key in the "Locked" position).
In a two cylinder lock, one key must be inserted and turned to
the "locked" position to enable the other key to be turned to the
"unlocked" position. The key that is in the "locked" position can be
removed from the lock as shown in (Figure 12). When one cylinder is
in the "Locked" position with the key removed, the key in the
second cylinder cannot be turned or removed from the cylinder.
Figure 12. Typical two cylinder lock with one key in the
"Locked" position and one key in the "Unlocked" position with
the key ready for removal (38 kV SEG&TD Lock #4 shown).
2.3.3 Mechanical lift lock
The mechanical lift lock prevents the operation of the "Push to
Open" and "Push to Close" buttons. To activate the lift lock, slide the
left lock plate up until the hole in the plate aligns with the hole in the
right lock plate as shown in (Figure 13). Install a customer-supplied
pad lock through the holes in the left and right lock plates to lock the
plates together.
Instruction Booklet IB131024EN
Figure 13. Activating the mechanical lift lock.
2.4 38 kV SEG&TD interlock functions
There are five interlocks located on the front of the 38 kV SEG&TD
(see Figure 14).
Lock #5
Operations
counter
SEG&TD
status
Lock #2
Lock #3
Figure 14. Location of the five interlocks and features on the
front of the 38 kV SEG&TD.
2.4.1 Lock #1 (keys KU and KB)
The Lock #1 interlock is a two cylinder transfer lock associated with
a switch that is used to electrically enable or disable the electrically
operated (E.O.) 38 kV SEG&TD. The switch is electrically disabled
when key KU is inserted, turned, and retained in the "Unlocked"
position. The switch is electrically enabled when key KB is inserted,
turned, and retained (see Figure 15).
Effective November 2017
Manual
charging slot
Open timer
adjustment
Charging
spring status
indicator
Lock #4
Female 3 pin
receptacle
Lock #1
Selector
switch
Shoot
bolts
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