Eaton VCPW-HD User manual

Contents
Description Page
1. Introduction ...........................2
2. Description ...........................2
3. Operation.............................7
4. Maintenance .........................15
5. Utility approvals.......................15
Effective March 2016
New Document
IB131012EN
38 kV Type VCP-WHD Simple Electrical
Ground & Test Device (SEG&TD) upper
terminal instruction booklet

2
IB131012EN
Effective March 2016
38 kVType VCP-WHD Simple Electrical
Ground &Test Device (SEG&TD) upper
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 VCP-WHD 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
VCP-WHD 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 – showing stabs).

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IB131012EN
Effective March 2016
38 kVType VCP-WHD Simple Electrical
Ground &Test Device (SEG&TD) upper
terminal instruction booklet
EATON www.eaton.com
This device is deeper than the standard VCP-WHD breaker. The
stored energy closing mechanism for the power grounding breaker
is the same as used in type VCP-WHD 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.
2.1 Power grounding breaker operation
2.1.1 Closing
The power grounding breaker is closed by the remote operating
station at the end of a 50 ft. (15.24 m) long cable (supplied with the
device) upon depressing and holding the “CHARGE/CLOSE” and
“PERMIT” push-buttons (see Figure 3).
Figure 3. 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 grounding breaker 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 4).
Figure 4. 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 grounding breaker can be opened by manual operation of the
“Push to Open” button. To activate the “Push to Open” button,
insert key KD into the bottom cylinder of Lock #4 and rotate it in the
cylinder then remove key KB (see Figure 5). Turn the selector switch
to the “Open” position (see Figure 6). The “Push to Open” button is
now functional.
Figure 5. Key KD inserted and key KB removed from Lock #4.
Figure 6. Selector Switch in the “Open” position.
The grounding breaker can also be opened electrically using the
remote operating station (see Figure 3). The “OPEN” push-button
must be depressed.
ote:N For safety reasons, the breaker is prevented from opening in less than
20 seconds after closing.
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 breaker is “Open”.
• An indicator on the front panel shows the status of the
grounding breaker contacts, “Open- Ungrounded” or “Closed-
Grounded” (see Appendix A).

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IB131012EN
Effective March 2016
38 kVType VCP-WHD Simple Electrical
Ground &Test Device (SEG&TD) upper
terminal instruction booklet
EATON www.eaton.com
• The power to operate the grounding breaker 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 breaker is inadver-
tently closed on an energized circuit (see Appendix C).
• 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 7 and Table 1 for details).
Figure 7. Interlock locations on the front of the 38 kV SEG&TD.
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 or unlocked.
Figure 8. 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 9. 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 or unlocked and key 2 locked or unlocked.
Lock 1
Lock 2
Lock 3
Lock 4
Lock 5

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IB131012EN
Effective March 2016
38 kVType VCP-WHD Simple Electrical
Ground &Test Device (SEG&TD) upper
terminal instruction booklet
EATON www.eaton.com
Figure 10. 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. When one cylinder is in the “Locked” posi-
tion with the key removed, the key in the second cylinder cannot be
turned or removed from the cylinder.
Figure 11. 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. Install a customer-supplied pad lock through the
holes in the left and right lock plates to lock the plates together.
Figure 12. 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 13)
Figure 13. Location of the five interlocks 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 14).
Lock 1
Lock 2
Lock 3
Lock 4
Lock 5

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IB131012EN
Effective March 2016
38 kVType VCP-WHD Simple Electrical
Ground &Test Device (SEG&TD) upper
terminal instruction booklet
EATON www.eaton.com
Figure 14. Electrically disabled with key KU retained. Electrically
enabled with key KB retained.
2.4.2 Lock #K2 (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 15).
Figure 15. 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 16). Key KC
is removable from Lock #3 when the lock bolt is extended.
Figure 16. 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.
Figure 17. 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
operator access to the manual “Open” button. Also, in this secured
position, a Selector switch electrically disables the electrical “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 (see Figure 18).
Disabled Enabled

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IB131012EN
Effective March 2016
38 kVType VCP-WHD Simple Electrical
Ground &Test Device (SEG&TD) upper
terminal instruction booklet
EATON www.eaton.com
Figure 18. 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
19). 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 Figure 20).
Figure 19. Test port shutters in the closed position.
Figure 20. Test port shutters retaining the test probes.
3 Operation
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 breaker electrically from the far-
thest distance with the remote control switch.
9. Check for dielectric integrity at 60 kV AC across the terminals to
ground with the grounding breaker “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.
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.
2. The Selector switch is set to “Off”.
Figure 21. “Open” indicator and the selector switch in the “Off”
position.
Breaker open
indicator
Selector switch in the
“Off” position

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IB131012EN
Effective March 2016
38 kVType VCP-WHD Simple Electrical
Ground &Test Device (SEG&TD) upper
terminal instruction booklet
EATON www.eaton.com
3. Lock #1: No key “KU” is present and key “KB” is held captive.
ote:N Initially, key “KU” is delivered locked in a Utility lockbox.
Figure 22. Key KB in Lock #1 without key KU.
4. Lock #2: No key “KB” is present and key “KC” is held captive.
Figure 23. 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.
Figure 24. 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.
Figure 25. 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.

9
IB131012EN
Effective March 2016
38 kVType VCP-WHD Simple Electrical
Ground &Test Device (SEG&TD) upper
terminal instruction booklet
EATON www.eaton.com
Figure 26. 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.
Figure 27. 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.
Figure 28. 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.
Figure 29. No key in Lock #3 but lock pin extended.
Lock pin

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IB131012EN
Effective March 2016
38 kVType VCP-WHD Simple Electrical
Ground &Test Device (SEG&TD) upper
terminal instruction booklet
EATON www.eaton.com
Figure 30. 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. For detailed information, refer to I.B. 73D2551H03,
Figures 4-2 through 4-4.
ote:N It may prove beneficial to have an assistant 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 31. Positioning the slide handles for insertion or removal
from the breaker cell.
6. Once fully inserted into the breaker cell, 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” can be removed from Lock #3. At this point, the 38 kV
SEG&TD has two available positions: “Disconnect” or “Test”.
If in the disconnect position, the SEG&TD cannot be racked in
(see I.B. 73D2551H03, Figure 4-4).
7. Using the racking crank provided, engage the end of the raking
crank with the racking mechanism of the 38 kV SEG&TD (see
Figure 32). Turn the raking crank clock-wise until the SEG&TD is
fully racked into the breaker cell.
Figure 32. Engagement of the racking crank with the racking
mechanism.
8. Visually check to make sure the 38 kV SEG&TD is open and
racked into the connected position.
Figure 33. Verifying that the 38 kV SEG&TD is “Open” and
“Connected”.
9. Once the 38 kV SEG&TD is fully racked into the connected
position, place key “KC” into Lock #2 and rotate key “KC” to
mechanically unlock the SEG&TD from being closed and to
release key “KB”.
10. Place key “KB” into Lock #1 and rotate it to electrically enable
the 38 kV SEG&TD.
11. Make sure selector switch is in the “OFF” position.