Eaton VCPW-HD User manual

Contents
Description Page
1. Introduction ...........................2
2. Description ...........................2
3. Operation.............................7
4. Maintenance .........................18
5. Utility approvals.......................18
Appendix A ..........................19
Appendix B ..........................21
Appendix C ..........................27
Effective November 2017
Instruction Booklet IB131024EN
38 kV Type VCPW-HD Simple Electrical
Ground & Test Device (SEG&TD) lower
terminal instruction booklet

2
Instruction Booklet IB131024EN
Effective November 2017
38 kVType VCPW-HD Simple Electrical
Ground &Test Device (SEG&TD) lower
terminal instruction booklet
EATON www.eaton.com
CAUTION
BECAUSE OF THE UNIQUE APPLICATION AND VAST VARIETY OF SYSTEM/
USER REQUIREMENTS, SPECIFIC SAFE OPERATING PROCEDURES FOR THE
USE OF THIS DEVICE MUST BE DEVELOPED BY THE USER.
1. Introduction
38 kV Type VCPW-HD Simple Electrical Ground & Test Device
(SEG&TD) assemblies are designed with all the bus work completely
insulated for safety.
Since the current carrying parts are not readily accessible, the type
38 kV SEG&TD is designed for insertion into the switchgear com-
partment to gain access to the primary stationary contacts. It pro-
vides a convenient means to:
• Ground the circuit for maintenance work and
• Apply potential for cable testing.
2. Description
The 38 kV SEG&TD (see Figure 1) is a draw-out element that can be
inserted into a switchgear compartment in the same manner as a
VCPW-HD circuit breaker. This device is equipped with a set of three
upper terminals (stabs) (see Figure 2).
Figure 1. 38 kV SEG&TD (front view).
Figure 2. 38 kV SEG&TD (rear view – Power grounding 38kV
SEG&TD operation configuration). Follow steps 2.1 - 3.4
Figure 3. 38 kV SEG&TD (rear view – Test probes & testing
feeder configuration). Follow steps 3.5 – 3.9
This device has longer depth than the standard VCPW-HD breaker.
The stored energy closing mechanism for the power grounding
breaker is the same as used in type VCPW-HD breakers. It is
capable of applying the ground against a “Live” circuit if operational
errors have not cleared the circuit. However, in such a case, the
relaying at the source of power is expected to cause the source
interrupter to clear the circuit.

3
Instruction Booklet IB131024EN
Effective November 2017
38 kVType VCPW-HD Simple Electrical
Ground &Test Device (SEG&TD) lower
terminal instruction booklet
EATON www.eaton.com
2.1 Power grounding 38kV SEG&TD operation
2.1.1 Closing
The power grounding 38kV SEG&TD is closed by the remote operat-
ing station at the end of a 50 ft (15.24 m) long cable (supplied with
the device) upon depressing the “CLOSE” button (see Figure 4).
Figure 4. Push-buttons on the Remote Operating Control.
1. The closing springs start to charge.
2. After the springs are fully charged, they automatically discharge
to close the grounding breaker contacts.
Once the 38kV SEG&TD is closed, it can be locked in the “Closed”
position by removing the cable from the receptacle on the device
and rotating key KB and removing key KD from Lock #4 (see
Figure 5).
Figure 5. Key KD removed from Lock #4.
ote:N The device can also be locked in the “Closed” position by the mechani-
cal lift lock. Please see Section 2.3.3 for details.
2.1.2 Opening
The power grounding 38kV SEG&TD can be “Opened” by manually
depressing the red “Push to Open” button (shown in figure 7) or
using the Remote “Open” Button (shown in Figure 4).
• To manually activate the red “Push to Open” button (shown in
Figure 7):
• Insert key KD into the bottom cylinder of Lock #4 and rotate it
in the cylinder then remove key KB (Figure 6). Turn the selec-
tor switch to the “Open” position (see Figure 7). The “Push to
Open” button is now functional.
Figure 6. Key KD inserted and key KB removed from Lock #4.
Figure 7. Selector Switch in the “Open” position.
• To electrically activate the Remote Operating Control “Open” but-
ton (shown in Figure 4), by installing remote cable (see Figure 4):
• Insert key KD into the bottom cylinder of Lock #4 and rotate it
in the cylinder then remove key KB (Figure 6). Turn the selec-
tor switch to the “Open” position (see Figure 7). The Remote
Operating Control “Open” button (shown in Figure 4) is now
functional to electrically operate.
ote:N For safety reasons, the breaker is prevented from opening in less than
20 seconds after closing.

4
Instruction Booklet IB131024EN
Effective November 2017
38 kVType VCPW-HD Simple Electrical
Ground &Test Device (SEG&TD) lower
terminal instruction booklet
EATON www.eaton.com
2.2 38 kV SEG&TD interlocks and safety features
The 38 kV SEG&TD is designed to provide as many interlocks and
safety features as practical for the personnel performing any of the
operations described herein.
The device cannot be levered into or out of the “Connected” posi-
tion unless the grounding 38kV SEG&TD is “Open”.
• An indicator on the front panel shows the status of the
grounding 38kV SEG&TD contacts, “Open- Ungrounded” or
“Closed-Grounded”.
• The power to operate the grounding 38kV SEG&TD in this
device is obtained through the secondary disconnect in the
switchgear compartment.
• The grounding breaker cannot be opened electrically in less
than 20 seconds after closing. This feature permits the source
interrupter to clear a fault if the grounding 38kV SEG&TD is
inadvertently closed on an energized circuit.
• The control switch cable is connected to the device with a
twist lock connector.
WARNING
IMPROPER USE CAN RESULT IN DEATH, SERIOUS PERSONAL INJURY, OR
PROPERTY DAMAGE.
2.3 Interlocks - basic elements description
There are five interlocks located on the front of the 38 kV SEG&TD.
They are labeled as Lock #1 through Lock #5. The labels also identify
the key(s) to be used in the locks as KB, KC, KD, and KU. Locks #1,
#2, and #4 are two cylinder locks while locks #3 and #5 are single
cylin¬der locks (see Figure 8 and Table 1 for details).
Figure 8. Interlock locations on the front of the 38 kV SEG&TD.
Lock #1
Lock #2
Lock #3
Lock #4
Lock #5
Mechanical lift lock
Table 1. 38 kV SEG&TD interlock details.
Lock # of cylinders Key(s) required
Lock #1 2 KB KU
Lock #2 2 KB KC
Lock #3 1 KC -
Lock #4 2 KB KD
Lock #5 1 KD -
There is also a mechanical lift lock that, when locked, prevents the
operation of the “Push to Open” and “Push to Close” buttons.
2.3.1 Single cylinder locks
Single cylinder locks are used in two positions on the 38 kV
SEG&TD: Locks #3 and #5. Single cylinder locks have two positions:
locked (see Figure 10) or unlocked (see Figure 9).
Figure 9. Typical single cylinder lock (38 kV SEG&TD Lock #5
shown).
In a single cylinder lock, when the key is inserted into the lock and
turned to the “locked” position, the associated 38 kV SEG&TD func-
tion will be inoperable and the key can be removed. When the key
is in the lock and turned to the “unlocked” position, the associated
38 kV SEG&TD function will be operable and the key is captive in
the lock.
Figure 10. Typical single cylinder lock in the “Locked” position
with the key ready for removal.
2.3.2 Two cylinder locks
Two cylinder locks are used in three positions on the 38 kV SEG&TD:
Locks #1, #2, and #4. Two cylinder locks have four positions (two for
each key): key 1 locked (see Figure 11) or unlocked and key 2 locked
or unlocked (see Figure 12).

5
Instruction Booklet IB131024EN
Effective November 2017
38 kVType VCPW-HD Simple Electrical
Ground &Test Device (SEG&TD) lower
terminal instruction booklet
EATON www.eaton.com
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.
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).
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).
Lock #1
Lock #2
Lock #3
Lock #4
Lock #5
Manual
charging slot
Open timer
adjustment
Charging
spring status
indicator
Female 3 pin
receptacle
Selector
switch
Shoot
bolts
Operations
counter
SEG&TD
status

6
Instruction Booklet IB131024EN
Effective November 2017
38 kVType VCPW-HD Simple Electrical
Ground &Test Device (SEG&TD) lower
terminal instruction booklet
EATON www.eaton.com
Figure 15. Electrically disabled with key KU retained. Electrically
enabled with key KB retained.
2.4.2 Lock #2 (keys KB and KC)
The Lock #2 interlock is a two cylinder lock used to mechanically lock
the 38 kV SEG&TD in the “Open” position. The device is locked in
the “Open” position when key KB is in the “Unlocked” position and
key KC has been rotated to the “Locked” position and removed from
the lock (see Figure 16).
Figure 16. Lock #2 locks the SEG&TD in the “Open” position
with key KB retained.
2.4.3 Lock #3 (key KC)
The Lock #3 interlock is a single cylinder lock that, when locked, pre-
vents the 38 kV SEG&TD from insertion into, or removal from, the
switchgear compartment.
In this design, the Lock #3 in the locked position (lock pin extended)
blocks the 38 kV SEG&TD slide handles from being moved to allow
insertion into or removal from the SEG&TD (see Figure 17). Key KC
is removable from Lock #3 when the lock bolt is extended.
Figure 17. Lock #3 with the locking pin extended and the slide
handles locked in position.
ote:N Key KC normally resides in Lock #2 when not being used in Lock #3.
2.4.4 Lock #4 (keys KB and KD)
The Lock #4 interlock is a two cylinder lock used to mechanically lock
the 38 kV SEG&TD in the ”Closed-Grounded” position.
In this design, the Lock #4 interlock is a two cylinder lock used with
the “Closed Locking Device” to prevent the 38 kV SEG&TD from
being opened. When the SEG&TD is in the “Open-Ungrounded”
position, the “Closed Locking Device” is disabled. Key KD is
retained when the lock pin is retracted. When the SEG&TD is
“Closed-Grounded”, the “Closed Locking Device” is free to move
to the right. The lock bolt can now be extended and the “Closed
Locking Device” will be held in the secured “Closed-Grounded” posi-
tion. Key KD is now removable from Lock #4 (see Figure 18).
Figure 18. Lock #4 locks the SEG&TD in the “Closed-Grounded”
position with key KB retained.
In this secured position, the “Closed Locking Device” has blocked
the ability to depress the red manual “Push to Open” button (refer-
ence location Figure 22). Also, in this secured position, the Selector
switch electrically disables the Remote Operating Control “Open”
function; and a mechanical interlock holds the main contacts in the
closed position even if the mechanism is tripped. A padlock hasp
is provided for securing the “CLOSED-Grounded” position with a
customer-supplied padlock for purpose of “Lockout Tag Out” (see
Figure 19).
Disabled Enabled

7
Instruction Booklet IB131024EN
Effective November 2017
38 kVType VCPW-HD Simple Electrical
Ground &Test Device (SEG&TD) lower
terminal instruction booklet
EATON www.eaton.com
Figure 19. Selector switch and the padlock provisions.
2.4.5 Lock #5 (key KD)
The Lock #5 interlock is a single cylinder lock used to open and lock
the test port shutters. When rotated, key KD moves the lock pin into
the locked and unlocked positions. Key KD is normally in Lock #4
and is available for use in Lock #5 only when the 38 kV SEG&TD is
locked “Closed-Grounded”.
Key KD is removable from Lock #5 in two extended bolt positions.
One position is when the Test Port shutters are closed (see Figure
20). The second position is when the Test Probes are inserted in the
Test Ports and they are being retained by the “detent” position of
the shutter (see Figures 21 & 49).
Figure 20. Test port shutters in the closed position.
Figure 21. Test port shutters retaining the test probes.
3 Operation (Lower SEG&TD)
3.1 Safe practices
WARNING
THE 38 KV SEG&TD IS A SAFETY-RELATED DEVICE. IT MUST BE
RECOGNIZED THAT IMPROPER USE CAN RESULT IN DEATH, SERIOUS
PERSONAL INJURY, OR PROPERTY DAMAGE. THAT IS WHY IT IS
IMPORTANT THAT THE USER DEVELOP SPECIFIC AND SAFE OPERATING
PROCEDURES FOR ITS USE.
The following general safe practices are recommended.
1. The 38 kV SEG&TD cannot be stored in a switchgear compart-
ment. It can only be stored in its storage compartment.
CAUTION
DO NOT STORE THE 38 KV SEG&TD IN THE SWITCHGEAR COMPARTMENT.
2. Store the 38 kV SEG&TD in a clean, dry area free from dust,
dirt, moisture, etc.
3. Keep all insulating surfaces, which include primary support insu-
lation and insulation barriers, clean and dry.
4. Check all primary circuit connections to make certain that they
are clean and tight.
5. Permit only authorized trained personnel to use this device.
6. Take extreme care while using this device to avoid contacting
“Live” or “Hot” (energized) terminals.
7. Do not remove the 38 kV SEG&TD front panel while using this
device.
8. Always “Close” the grounding 38 kV SEG&TD electrically from
the farthest distance with the remote control switch.
9. Check for dielectric vacuum integrity at 60 kV AC across the ter-
minals to ground with the grounding 38 kV SEG&TD “Open”.
3.2 Operating the 38 kV SEG&TD using the five interlocks
3.2.1 Initial 38 kV SEG&TD condition and interlock positions
When delivered, the following should be true of the 38 kV SEG&TD
(Refer to Table 2).
ote:N If any of these initial conditions and/or interlock positions is incorrect,
contact your Eaton Representative.
1. The 38 kV SEG&TD is in the “Open” position (showing 38 kV
SEG&TD open indicator as shown in Figure 22).
2. The Selector switch is set to “Off”.
Figure 22. “Open” indicator and the selector switch in the “Off”
position.
Breaker open
indicator
Selector switch in the
“Off” position

8
Instruction Booklet IB131024EN
Effective November 2017
38 kVType VCPW-HD Simple Electrical
Ground &Test Device (SEG&TD) lower
terminal instruction booklet
EATON www.eaton.com
3. Lock #1: No key “KU” is present and key “KB” is held captive
(see Figure 23).
ote:N Initially, key “KU” is delivered locked in a Utility lockbox.
Figure 23. Key KB in Lock #1 without key KU.
4. Lock #2: No key “KB” is present and key “KC” is held captive
(see Figure 24).
Figure 24. Key KC in Lock #2 without key KB.
5. Lock #3: No key “KC” is present and the lock pin is extended
locking the slide handles in the extended position so the 38 kV
SEG&TD cannot be inserted or removed from the switchgear
compartment (see Figure 25).
Figure 25. No key in Lock #3 and lock pin extended to lock the
slide handles.
6. Lock #4: No key “KB”’ is present and key “KD” is held captive
(see Figure 26).
Figure 26. Key KD in Lock #4 without key KB.
7. Lock #5: No key “KD” is present and the lock pin is extended
locking the Test Port Shutter in the “Closed” position (see
Figure 27).

9
Instruction Booklet IB131024EN
Effective November 2017
38 kVType VCPW-HD Simple Electrical
Ground &Test Device (SEG&TD) lower
terminal instruction booklet
EATON www.eaton.com
Figure 27. No key in Lock #5 but lock pin extended to lock the
test port shutter.
Table 2. Initial condition – summary key locations and
conditions.
Key Location Condition
Key KB Lock #1 – top Captive
Key KC Lock #2 – bottom Captive
Key KD Lock #4 – bottom Captive
Key KU Out of 38 kV SEG&TD and
in utility lockbox
Free
3.3 Grounding the incoming feeder
To ground the incoming feeder, proceed with the steps that follow.
ote:N The steps that follow assume that the interlock conditions and key
positions are as detailed in Section 3.2.1.
1. Obtain key “KU” from the Utility lockbox.
2. Insert key “KU” into the bottom cylinder of Lock #1. Rotate key
“KU” to release key “KB” and to move the associated switch to
electrically disable the 38 kV SEG&TD (see Figure 28).
Figure 28. Key “KB” in top cylinder and key “KU” in bottom
cylinder of Lock #1.
3. Move key “KB” to Lock #2 and insert it into the top cylinder.
Rotate existing key “KC” in the bottom cylinder of Lock #2 to
lock key “KB” and release key “KC”. This action mechanically
locks the SEG&TD in the “Open” condition (see Figure 29).
Figure 29. Key “KB” in top cylinder and key “KC” in bottom
cylinder of Lock #2.
4. Move key “KC” to Lock #3 and insert it into the cylinder.
Rotate key “KC” to retract the locking pin to release the slide
handles to allow the 38 kV SEG&TD to be inserted into the
breaker cell (see Figures 29 and 30).
Figure 30. No key in Lock #3 but lock pin extended.
Lock pin

10
Instruction Booklet IB131024EN
Effective November 2017
38 kVType VCPW-HD Simple Electrical
Ground &Test Device (SEG&TD) lower
terminal instruction booklet
EATON www.eaton.com
Figure 31. Key “KC” in Lock #3 with the lock pin retracted.
5. Align the 38 kV SEG&TD with the breaker cell to be tested.
Move and hold the slide handles towards the center of the 38
kV SEG&TD then insert the SEG&TD into the breaker cell to
be tested (see Figure 32). For “Quick Installation Guide” see
Figures 33-35. For detailed “Step-by-Step Installation Guide”
see Appendix B.
ote:N It may prove beneficial to have an assistant or use the 38kV VCP-HD
Cradle Assist Kit (style No. 71C2570G01) to help with inserting the 38 kV
SEG&TD into the breaker cell due to the weight of the device and the location
of the slide handles.
Figure 32. Positioning the slide handles for insertion or removal
from the breaker cell.
Figure 33. VCPW-HD Racking Screw rotational position when
fully in CONNECT & TEST positions.
Figure 34. VCPW-HD Cell slots for Breake Shoot Bolt Pin inser-
tion for DISCONNECT and TEST position.
6. Once fully inserted into the breaker cell (Test Position Slot –
Figure 34), release the slide handles and rotate key “KC” to the
“Locked” position. This will extend the locking pin for Lock #3
to lock the slide handles and the SEG&TD within the breaker
cell. At this point, key “KC” remains in Lock #3 until the 38kV
SEG&TD “Racking” operation is complete.
ote:N When inserting the 38 kV SEG&TD there are two available positions
(shown in Figure 34): “Disconnect” or “Test”. If in the “Disconnect” posi-
tion as shown in (Figure 35), the 38kV SEG&TD cannot be racked in. Follow
instructions in the description under (Figures 35) and reference (Figure 34)
showing the “TEST” position slot that will permit the 38kV SEG&TD to be
racked in.
Figure 35. VCPW-HD Shoot Bolt Handles must be pulled and
held inward when inserting breaker into the DISCONNECT and
TEST positions. Be sure the handles return to the outward posi-
tion when the breaker is placed in the TEST position or breaker
will not be able to be racked in. Breaker cannot be racked when
in the DISCONNECT position.