Eaton 75 VCP-W-SGT Instruction book

Brand: Eaton

Model: 75 VCP-W-SGT

Type: Instruction book

This manual is also suitable for

Instruction Book IB182312EN

50/75/150 VCP-W

Selectable Ground and Test Device

150 VCP-W-SGT

June 2016

Supersedes October 2015

Effective

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

 WARNING

IMPROPERLY INSTALLING OR MAINTAINING THESE PRODUCTS CAN

RESULT IN DEATH, SERIOUS PERSONAL INJURY OR PROPERTY DAMAGE.

READ AND UNDERSTAND THESE INSTRUCTIONS BEFORE ATTEMPTING

ANY UNPACKING, ASSEMBLY, OPERATION OR MAINTENANCE OF THE

SELECTABLE GROUND AND TEST DEVICES.

INSTALLATION OR MAINTENANCE SHOULD BE ATTEMPTED ONLY

BY QUALIFIED PERSONNEL. THIS INSTRUCTION BOOK SHOULD NOT

BE CONSIDERED ALL INCLUSIVE REGARDING INSTALLATION OR

MAINTENANCE PROCEDURES. IF FURTHER INFORMATION IS REQUIRED,

YOU SHOULD CONSULT EATON’S ELECTRICAL SERVICES & SYSTEMS.

THE SELECTABLE GROUND AND TEST DEVICES DESCRIBED IN THIS BOOK

ARE DESIGNED AND TESTED TO OPERATE WITHIN THEIR NAMEPLATE

RATINGS. OPERATION OUTSIDE OF THESE RATINGS MAY CAUSE THE

EQUIPMENT TO FAIL, RESULTING IN DEATH, BODILY INJURY AND

PROPERTY DAMAGE.

ALL APPLICABLE CODES, SAFETY STANDARDS AND/OR REGULATIONS

RELATED TO THIS TYPE OF EQUIPMENT MUST BE STRICTLY FOLLOWED.

THESE SELECTABLE GROUND AND TEST DEVICES ARE DESIGNED TO

BE INSTALLED PURSUANT TO THE AMERICAN NATIONAL STANDARDS

INSTITUTE (ANSI). SERIOUS INJURY, INCLUDING DEATH, CAN RESULT

FROM FAILURE TO FOLLOW THE PROCEDURES OUTLINED IN THIS

MANUAL.

DISCLAIMER OF WARRANTIES AND LIMITATION OF LIABILITY

The information, recommendations, descriptions and safety notations in this document are based on Eaton’s experience and judgment and

may not cover all contingencies. If further information is required, an Eaton sales office should be consulted. Sale of the product shown in

this literature is subject to the terms and conditions outlined in appropriate Eaton selling policies or other contractual agreement between

Eaton and the purchaser.

THERE ARE NO UNDERSTANDINGS, AGREEMENTS, WARRANTIES, EXPRESSED OR IMPLIED, INCLUDING WARRANTIES OF FITNESS

FOR A PARTICULAR PURPOSE OR MERCHANTABILITY, OTHER THAN THOSE SPECIFICALLY SET OUT IN ANY EXISTING CONTRACT

BETWEEN THE PARTIES. ANY SUCH CONTRACT STATES THE ENTIRE OBLIGATION OF EATON. THE CONTENTS OF THIS DOCUMENT

SHALL NOT BECOME PART OF OR MODIFY ANY CONTRACT BETWEEN THE PARTIES.

In no event will Eaton be responsible to the purchaser or user in contract, in tort (including negligence), strict liability or other-wise for any

special, indirect, incidental or consequential damage or loss whatsoever, including but not limited to damage or loss of use of equipment,

plant or power system, cost of capital, loss of power, additional expenses in the use of existing power facilities, or claims against the

purchaser or user by its customers resulting from the use of the information, recommendations and descriptions contained herein. The

information contained in this manual is subject to change without notice.

This product was manufactured by Eaton at the Power Breaker

Center (PBC): 310 Maxwell Avenue, Greenwood, SC 29646.

All possible contingencies which may arise during installation,

operation or maintenance, and all details and variations of this

equipment do not purport to be covered by these instructions. If

further information is desired by purchaser regarding his particular

installation, operation or maintenance of particular equipment,

contact an Eaton representative.

iii

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

Table of Contents

SECTION 1: INTRODUCTION 4

1.1 AVAILABLE 150 VCP-W SELECTABLE

GROUND AND TEST DEVICES 4

SECTION 2: SAFE PRACTICES 6

SECTION 3: RECEIVING, HANDLING, AND STORAGE 7

3.1 RECEIVING 7

3.2 HANDLING 7

3.3 STORAGE 8

3.4 APPROXIMATE WEIGHT BY TYPE 8

SECTION 4: DESCRIPTION AND OPERATION 11

4.1 INSULATING BARRIERS 11

4.2 BUSHINGS AND DISCONNECTING CONTACT ASSEMBLIES 11

4.3 GROUNDING CONTACTS 11

4.4 BREAKER-CELL CODING PLATES 11

4.5 CELL POSITION DESCRIPTION 11

4.6 DEVICE AMPERAGE CONVERSION PROCEDURE 13

SECTION 5: INSTALLATION & INSPECTION 14

5.1 EXAMINATION FOR DAMAGE 14

5.1.1 NAMEPLATE VERIFICATION 14

5.2 OPERATING PROCEDURE 14

5.5 INSERTION PROCEDURE 16

5.5 REMOVAL PROCEDURE 16

SECTION 6: INSPECTION AND MAINTENANCE 18

6.1 INTRODUCTION 18

6.2 FREQUENCY OF INSPECTION 18

6.3 INSPECTION AND MAINTENANCE PROCEDURES 18

6.4 INSULATION INTEGRITY CHECK 18

SECTION 7: REPLACEMENT OF COMPONENTS 19

7.1 GENERAL 19

7.1.1 ORDERING INSTRUCTIONS 19

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

SECTION 1: INTRODUCTION

The purpose of this book is to provide instructions for receiving and

handling, storage, installation, operation and maintenance of 150

VCP-W Selectable Ground and Test Devices. This selectable ground

and test device is designed to be used in existing Westinghouse,

Cutler-Hammer, or Eaton Type VCP-W metal-clad switchgear.

Type VCP-W selectable ground and test devices are designed for

insertion into the breaker compartment to gain access to the primary

stationary contacts. It provides convenient means to:

1. Ground a circuit for maintenance work;

2. Apply potential for testing; and/or,

3. Access both bus and line circuits for “phasing out” tests.

4. Depending on customer specification, key interlocks may be

deleted. Line/Load and Phase labeling may be optionally provided.

 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.

 WARNING

SATISFACTORY PERFORMANCE OF SELECTABLE GROUND AND TEST

DEVICES IS CONTINGENT UPON PROPER APPLICATION, CORRECT

INSTALLATION AND ADEQUATE MAINTENANCE. THIS INSTRUCTION

BOOK MUST BE CAREFULLY READ AND FOLLOWED IN ORDER TO OBTAIN

OPTIMUM PERFORMANCE FOR LONG USEFUL LIFE OF THE SELECTABLE

GROUND AND TEST DEVICES.

THESE SELECTABLE GROUND AND TEST DEVICES ARE PERSONNEL

PROTECTIVE DEVICES, AS SUCH, THEY ARE MAXIMUM RATED DEVICES.

THEREFORE, THEY SHOULD NOT UNDER ANY CIRCUMSTANCES BE

APPLIED OUTSIDE THEIR NAMEPLATE RATINGS.

1.1 AVAILABLE 150 VCP-W SELECTABLE GROUND AND

TEST DEVICES

Refer to Table 1.

Table 1. 150 VCP-W Selectable Ground and Test Device Availability and Interchangeability

Nominal Voltage Class

(kV)

Existing Breaker MVA

Ratings

Sized For Circuit

Breaker Compartment

(Amps)

Rated Short-Time Current

kA / RMS

Symmetrical

Rated Momentary Current

kA / Peak

BIL Capability

(kV)

5 36 / 49 1200 / 2000 / 3000 50 97 / 132 60

7.5 41 1200 / 2000 / 3000 50 111 95

15 23 / 41 / 50 1200 / 2000 / 3000 50 62 / 109 / 130 95

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

Table 2. VCP-W Selectable Ground and Test Device Dimensions

Breaker Type

Sized For

Circuit Breaker

Compartment

(Amps) A B C D E F G H I J K

150 VCP-W 500 Dual 1200 / 2000 28.50 26.76 10.00 27.81 12.00 14.13 20.88 24.63 2.25 27.80 29.55

150 VCP-W 500 Dual 3000 28.50 26.76 10.00 27.96 12.00 14.13 20.88 24.63 2.25 27.80 29.55

C C

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

SECTION 2: SAFE PRACTICES

Selectable Ground and Test Devices are designed with several built-in

interlocks and safety features to provide safe and proper operating

sequences.

 DANGER

TO PROTECT THE PERSONNEL ASSOCIATED WITH INSTALLATION,

OPERATION, AND MAINTENANCE OF THE SELECTABLE GROUND AND TEST

DEVICES, THE FOLLOWING PRACTICES MUST BE FOLLOWED:

•

Only qualified persons, as defined in the National Electrical

Safety Code, who are familiar with the installation and

maintenance of medium voltage circuits and equipment,

should be permitted to work on the selectable ground and

test device.

•

Read these instructions carefully before attempting any

installation, operation or maintenance of the selectable

ground and test device.

•

Always remove the selectable ground and test device from

the enclosure before performing any maintenance on the

device. Failure to do so could result in electrical shock leading

to death, severe personnel injury or property damage.

•

Do not leave the selectable ground and test device in an

intermediate position in the cell. Always have the selectable

ground and test device either in the DISCONNECT or

CONNECTED position. Failure to do so could result in a

flash over and possible death, personnel injury or property

damage.

•

Keep all insulating surfaces, which include primary support

insulation and insulation barriers, clean and dry.

•

Check all primary circuit connections to make certain they are

clean and tight.

•

Take extreme care while using this device to avoid contacting

“live” or “hot” (energized) terminals.

•

These selectable ground and test devices are equipped with

safety interlocks. Do not defeat them. This may result in

death, bodily injury or equipment damage.

•

Correctly identify LINE and BUS terminals for the breaker

compartment before using this device. Remember that line

connection may be on lower terminals when installed in

upper compartment of 2-high switchgear.

•

Store the device in a clean, dry area free from dust, dirt,

moisture, etc.

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

SECTION 3: RECEIVING, HANDLING, AND

STORAGE

Selectable ground and test (SG&T) devices are subjected to

complete factory production tests and inspection before being

packed. They are shipped in packages designed to provide maximum

protection to the equipment during shipment and storage and at the

same time to provide convenient handling.

3.1 RECEIVING

Until the selectable ground and test device is ready to be delivered

to the switchgear site for installation, DO NOT remove it from the

shipping crate. If the selectable ground and test device is to be

placed in storage, maximum protection can be obtained by keeping

it in its crate.

Upon receipt of the equipment, inspect the crates for any signs of

damage or rough handling. Open the crates carefully to avoid any

damage to the contents. Use a nail puller rather than a crow bar

when required.

When opening the crates, be careful that any loose items or

hardware are not discarded with the packing material. Check the

contents of each package against the packing list. Examine the

selectable ground and test device for any signs of shipping damage

such as broken, missing or loose hardware, damaged or deformed

insulation and other components. File claims immediately with the

carrier if damage or loss is detected and notify the nearest Eaton’s

Electrical Services & System office.

Tools and Accessories

Racking Handle:

The racking handle is used to drive the racking

mechanism which moves the SG&T device into and out of the

cell. This racking handle is the same one provided with the original

VCP-W Vacuum Circuit Breaker and therefore is not provided as part

of the SG&T device. (Figure 3.1.1)

Figure 3.1.1. Racking Handle

3.2 HANDLING

 WARNING

DO NOT USE ANY LIFTING DEVICE AS A PLATFORM FOR PERFORMING

MAINTENANCE, REPAIR OR ADJUSTMENT. THE SELECTABLE GROUND

AND TEST DEVICE MAY SLIP OR FALL CAUSING SEVERE PERSONAL

INJURY. ALWAYS PERFORM MAINTENANCE, REPAIR AND ADJUSTMENTS

ON A WORKBENCH CAPABLE OF SUPPORTING THE SELECTABLE GROUND

AND TEST DEVICE TYPE.

VCP-W selectable ground and test device shipping containers are

designed to be handled by a forklift truck. If containers must be

skidded for any distance, it is preferable to use roller conveyors or

individual pipe rollers.

Once a SG&T device has been inspected for shipping damage, it is

best to return it to its original shipping crate until it is ready to be

installed in the Metal-Clad Switchgear.

When a selectable ground and test device is ready for installation, a

lifting harness in conjunction with an overhead lift or portable floor

lift can be used to move a SG&T device. This could be preferable to

rolling the SG&T device on the floor using self-contained wheels.

If the SG&T device is to be lifted, position the lifting device (lifting

straps should have at least a 1600 lb capacity) over the SG&T. Stand

a safe distance away from the device while lifting and moving.

Figure 3.2. Lifting 150 VCP-W-SG&T

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

3.3 STORAGE

If the selectable ground and test device is to be placed in storage,

maximum protection can be obtained by keeping it in the original

shipping crate. Before placing it in storage, checks should be made

to make sure that the SG&T device is free from shipping damage

and is in satisfactory operating condition.

Outdoor storage is NOT recommended. If unavoidable, the outdoor

location must be well drained and a temporary shelter from sun,

rain, snow, corrosive fumes, dust, dirt, falling objects, excessive

moisture, etc. must be provided. Container should be arranged to

permit free circulation of air on all sides and temporary heaters

should be used to minimize condensation. Moisture can cause

rusting of metal parts and deterioration of high voltage insulation.

A heat level of approximately 400 watts for each 100 cubic feet of

volume is recommended with the heaters distributed uniformly

throughout the structure near the floor.

Indoor storage should be in a building with sufficient heat and

circulations to prevent condensation. If the building is not heated,

the same general rule for heat as for outdoor storage should be

applied.

3.4 APPROXIMATE WEIGHT BY TYPE

Refer to Table 3.

Table 3. Approximate Weight by Type

Type Amperes LBs

50/75/150 VCP-W-SGT 50 1200 / 2000 / 3000 316

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

Figure 3.3.a. Front External View of 150 VCP-W SG&T Device

Front External View (150 VCP-W SG&T Shown)

1 Lock-out / Tag-out Ring 4 Kirk

Key Interlock* 7 Lift / Pull Handle

2 Friction Hinge 5 Spring Loaded Kirk

Lock Bolt* 8 Ground Contact

3 Selector Blade Latch Ring 6 Code Plate

ote:N * May be deleted at option of end user.

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

Figure 3.3.b. Rear External View of 150 VCP-W SG&T Device

Back External View (150 VCP-W SG&T Shown)

1 Lifting Point 2 Primary Disconnects (1200A / 2000A Shown)

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

SECTION 4: DESCRIPTION AND OPERATION

The SG&T is a draw out device that can be inserted into a circuit

breaker cubicle in the same manner as the 150 VCP-W Circuit

Breaker. It can be ordered as a single terminal device or a double

terminal selectable ground and test device. Each terminal is isolated

from each other and the ground bus connections by insulating

barriers. The upper and lower terminals are accessible upon opening

the respective front hinged door. The ground connection is easily

accessible on the lower front section of the device (Figure 3.3.a).

Interchangeable primary disconnects allow the SG&T device to be

converted between the available amperes for this device. (1200A /

2000A and 3000A)

 WARNING

IT IS MOST IMPORTANT THAT THE LOAD OR LINE TERMINALS BE

CORRECTLY IDENTIFIED FOR EACH COMPARTMENT BEFORE USING THIS

DEVICE.

Type 150 VCP-W Selectable Ground & Test devices are also available

with either the upper or lower terminals only.

4.1 INSULATING BARRIERS

Insulating barriers are GPO-3 glastic material used to isolate the

primary terminals from each other and the ground connections.

4.2 BUSHINGS AND DISCONNECTING CONTACT

ASSEMBLIES

The upper and lower bushings, which are the primary circuit

terminals of the selectable ground and test device, consist of

silver plated insulated conductors. Multiple finger type primary

disconnecting contacts at the ends of the conductors provides

means for connecting and disconnecting the SG&T device to the bus

terminals in the switchgear compartment. (Figure 3.5)

4.3 GROUNDING CONTACTS

The grounding contact is an assembly of spring-loaded fingers,

which ground the device by engaging the switchgear cell grounding

bus when the SG&T device is levered into the “connect” position.

The ground contact is located at the lower section of the device, on

the truck, and visible from the front of the device. (Figure 3.3.a)

4.4 BREAKER-CELL CODING PLATES

 NOTICE

CODE PLATES WILL BE SUPPLIED PER SWITCHGEAR REQUIREMENTS AND

THEREFORE AMPERAGE/RATED SHORT-TIME CURRENT ARRANGEMENTS

WILL NOT BE COVERED IN THIS MANUAL. DETAILED INFORMATION

ON THE SPECIFIC CODE PLATE OPTIONS WILL BE PROVIDED WITH THE

CUSTOMER ORDER.

This is a combination of a notched plate in the cell and interference

bars on the breaker, so that only appropriately rated breakers can be

put into the cell (Figure 3.3.a).

 WARNING

FOR 1200A/2000A/3000A UNIVERSAL SELECTABLE GROUND & TEST

DEVICES A CODE PLATE HAS BEEN FACTORY INSTALLED TO MATCH THE

RATING OF THE FACTORY-INSTALLED PRIMARY DISCONNECTS. ENSURE

THAT THE CORRECT PRIMARY DISCONNECTS AND CODE PLATES HAVE

BEEN INSTALLED FOR THE CORRECT APPLICATION.

4.5 CELL POSITION DESCRIPTION

Position A: This is the withdrawn position. In the withdrawn position,

the selectable ground and test device is out of the cell. The racking

handle is not required for this position.

Position B: As the SG&T device is pushed into the cell, it will reach a

mechanical stop. This is the “disconnect” position.

Position C: Continue rotating the racking handle until the rotating

handle turns freely, and the SG&T device stops moving. The device

will have reached the “connect” position. (Figure 5.11) Remove the

racking handle.

Figure 4.1. Installed Code Plate (1200A/50kA Unit Shown)

Figure 4.2. Primary Disconnect Installed (3000A)

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

Figure 4.5. Primary Disconnect Shim Removal (3000A) Figure 4.8. Primary Disconnect Installed (1200A/2000A)

Figure 4.6. Primary Disconnect Installation (1200A/2000A)

Figure 4.4. Primary Disconnect Removal (3000A) Figure 4.7. Primary Disconnect Hardware Installation

(1200A/2000A))

Figure 4.3. Primary Disconnect Hardware Removal (3000A)

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

4.6 DEVICE AMPERAGE CONVERSION PROCEDURE

The VCP-W-SGT may be optionally provided with interchangeable

primary disconnects. When so equipped, the extra primary

disconnects and code plates are boxed separately.

The primary circuit terminals of the selectable ground and

test device consists of silver plated copper conductors with

interchangeable primary disconnects. The same primary

disconnects are used for 1200 and 2000 ampere applications; the

SG&T must be converted for 3000 ampere SG&T use. Primary

disconnecting contacts are bolted to the lead assemblies; these

primary disconnects are configured to engage the circuit breaker

compartment primary disconnects. It is critical to confirm that

1200/2000 ampere primary disconnects are installed prior to

insertion in 1200/2000 ampere circuit breaker compartments;

likewise for tests in 3000 ampere circuit breaker compartments.

THIS CONVERSION ALSO REQUIRES A CODE PLATE CHANGE

PRIOR TO RACKING THE SG&T INTO ITS CIRCUIT BREAKER

COMPARTMENT. Follow the procedure below to convert from one

primary current design to the other.

a. With the selectable ground and test device located in an

appropriate work area, remove the existing primary disconnects

installed on the SG&T. Retain the hardware for re-use. Figure 4.3.

b. After removing the primary disconnect assembly, locate the

primary disconnects to be installed and install them on the

lead assemblies using the hardware just removed. The primary

disconnects just removed should be properly stored to avoid

potential damage. Figure 4.4.

ote:N Ensure shims are installed as shown in Figure 4.5 for the 3000A

configuration.

c. THE GROUND AND TEST CODE PLATE MUST BE CHANGED AT

THIS TIME. The SG&T device will be blocked from full insertion in

the circuit breaker compartment until the code plate is changed.

The code plate is a mandatory safety feature that must not be

removed and/or discarded.

d. Left hand and right hand code plates are installed on the lower

part of the SG&T frame below ‘C’ phase. The right hand code

plate is mounted adjacent to rail to which the wheels are

attached; the left hand code plate is mounted to the left of the

right hand code plate. The left hand code plate is used for the

continuous current rating, the right hand code plate corresponds

to the short circuit capabilities of the device. Eaton offers many

code plate combinations for accepting or rejecting devices

based on their continuous current rating, short circuit current

rating, speed of contact parting (3-cycle or 5-cycle) and other

classifications; consult your Eaton representative for complete

code plate availability. Table 4.1 provides the code plate

information for 15 kV SG&T devices that have a short time rating

of 50 kA.

Table 4.

Nominal Voltage /

Short Time Rating

Cubicle Current

Rating

Cycle Class Device LH Code LH Style Code

Plate

Device RH Code RH Style Code

Plate

15 / 50 1200 5 K = 1 12000 8061A47H06 10012 8061A42H01

15 / 50 2000 5 K = 1 11000 8061A38H06 10012 8061A42H01

15 / 50 3000 5 K = 1 20000 8061A40H06 10012 8061A42H01

Example: If the SG&T is to be used only in switchgear rated for 48-49 kA, only the Left Hand code plate would be changed to allow insertion of the 1200A,

2000A, or 3000A configured device.

Figure 4.9. 50/75/150 VCP-W with optional LINE/LOAD and

PHASE labels

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

SECTION 5: INSTALLATION & INSPECTION

 WARNING

BEFORE PLACING THE SELECTABLE GROUND AND TEST DEVICE IN

SERVICE, CAREFULLY FOLLOW THE INSTALLATION PROCEDURE BELOW

AND THE SAFE PRACTICES SET FORTH IN SECTION 2. NOT FOLLOWING

THE PROCEDURE MAY RESULT IN INCORRECT SG&T DEVICE OPERATION

LEADING TO DEATH, BODILY INJURY, AND PROPERTY DAMAGE.

When the SG&T device is first used and each time it is used in the

future, it should be carefully examined and checked to make sure it

is operating correctly.

5.1 EXAMINATION FOR DAMAGE

Examine the selectable ground and test device for loose or obviously

damaged parts. Never attempt to install nor operate a damaged

selectable ground and test device.

5.1.1 NAMEPLATE VERIFICATION

Verify the information on the new SG&T device matches the

information on the purchase order. If any discrepancies exist,

notify Eaton’s Electrical Services & Systems for resolution prior to

proceeding.

 DANGER

FAILURE TO IDENTIFY THE ENERGIZED TERMINALS INSIDE THE

SWITCHGEAR CIRCUIT BREAKER COMPARTMENT WILL CAUSE DEATH,

SERIOUS INJURY, AND/OR PROPERTY DAMAGE. USE NOT ONLY A

RIGOROUS LOCK-OUT, TAG-OUT SCHEME BUT ALSO LOCALIZED TESTING

WITH APPROVED TESTING PROBES TO CONFIRM THAT THE CIRCUIT TO BE

GROUNDED IS DE-ENERGIZED. CONFIRM THAT FOREIGN POWER SOURCES

ARE NOT BACK-FEEDING INTO THE DE-ENERGIZED BUS.

 CAUTION

WHEN THE SELECTABLE GROUND AND TEST DEVICE IS RACKED TO

THE ‘CONNECTED’ POSITION IN THE SWITCHGEAR CIRCUIT BREAKER

COMPARTMENT, THE LINE AND LOAD PRIMARY DISCONNECTS ENGAGE

THE STATIONARY PRIMARIES. IF ONE SET OF PRIMARIES IS ENERGIZED,

IT IS STRONGLY ADVISED THAT THE TERMINAL ACCESS DOOR REMAIN

CLOSED AND LOCKED TO BLOCK ACCESS TO THOSE TERMINALS. THE

KIRK™ LOCKS (WHEN PROVIDED) SHOULD BE INCORPORATED IN A ‘LOCK-

OUT, TAG-OUT’ SCHEME. USE APPROPRIATE LOCKING PROVISIONS TO

PREVENT INADVERTENT ACCESS. THIS SELECTABLE GROUND AND TEST

DEVICE MUST BE OPERATED BY A QUALIFIED OPERATOR USING A WELL

MAINTAINED AND CERTIFIED ‘HOT STICK’.

 NOTICE

BECAUSE THERE ARE UNIQUE APPLICATIONS AND A VAST VARIETY OF

POWER SYSTEMS, THE SAFE OPERATING PROCEDURE FOR THE USE OF

THIS SELECTABLE G&T MUST BE DEVELOPED BY THE END USER BEFORE

THE SELECTABLE GROUND AND TEST DEVICE IS INSTALLED IN THE

CIRCUIT BREAKER COMPARTMENT.

5.2 OPERATING PROCEDURE

Please totally familiarize all SG&T users with this operating

procedure prior to inserting the SG&T into the circuit breaker

compartment.

5.2.1 SELECTABLE GROUND AND TEST DEVICE

PREPARATION

Use the following guidelines to prepare the SG&T for insertion in a

circuit breaker compartment.

a. This selectable ground and test device has a hotstick operable

moving blade that is retained in a neutral position between the

upper and lower terminals by a metal retainer. When the latch

ring handles are at a 90 degree angle to the front of the SG&T,

the selector blades are retained in the neutral, parked position.

Confirm that the removable insulating barriers are in place

above and below the selector blades. THIS SG&T MUST BE

INSTALLED IN THE CIRCUIT BREAKER COMPARTMENT WITH

THESE SELECTOR BLADES IN THE NEUTRAL POSITION.

b. For SG&T devices equipped with Kirk™ Locks on the terminal

access doors, use the Kirk™ key provided to release the special

bolt that is held by the Kirk™ locking system. Slide this bolt

from the Kirk™ lock on the SG&T front cover to allow the door

to be opened. The special bolt is retained on the door. See

Figure 5.1.

c. Access the terminal set to be grounded by opening the upper

or lower access door. The access doors have friction-style

hinges that will hold the access door open. (See Figure 5.2).

The tension of these friction hinges may be adjusted using a

Phillips-type screw driver.

d. Locate the three insulating barriers that separate the

neutral position of the selector blades from the terminal set

compartment to be grounded (Figure 5.3). Each of these three

barriers must be removed to allow selector blade to swing to

the terminals to be grounded. These removable barriers should

be safely stored for re-installation before returning the SG&T

to its storage area. These barriers should be removed prior

to installing the SG&T in the circuit breaker compartment and

re-installed after the SG&T has been removed from the circuit

breaker compartment.

e. Close the terminal access door prior to installing the G&T in the

circuit breaker compartment.

f. Install the SG&T in the circuit breaker compartment following

the instructions in paragraph 5.4 of this instruction bulletin.

Use the Personal Protective Equipment (PPE) required by local

authorities having jurisdiction.

5.2.2 SELECTABLE GROUND AND TEST DEVICE

OPERATION

The following procedures are intended to supplement, but not

replace, the site specific instructions developed by authorities having

jurisdiction for use of this selectable ground and test device.

a. Using the appropriate PPE, open the terminal access door for

the terminals to be grounded. Verify that the SG&T terminals

are de-energized. Confirm that the friction hinges of the

terminal access door holds the door open. Start at phase ‘a’,

the pole to the left as one faces the SG&T.

b. The terminal selector blade is moved from the neutral, parked

position by using the hook of a ‘hotstick’ to move the latch

ring to the left slightly to free the blade from its retainer. A

downward force on the latch ring will move the blade to the

lower terminal; upward force on the latch ring will move the

blade to the upper terminal. A mechanism in the blades spreads

them slightly as the latch ring is moved to allow proper blade

engagement with the stationary blades; a clamping and latching

action is applied once the blade engages its mating terminal.

c. Repeat steps ‘b’ for the center pole and the right pole of the

SG&T respectively.

d. With the selector blades fully engaged in the terminals, the

blades are latched so that they cannot swing open in the event

that the circuit is inadvertently energized.

e. With the terminals safely grounded, perform the tasks and tests

required as required. When that work is complete, proceed to

step ‘f’.

f. Use the hotstick to hook the selector blade latch ring on the

selector blade (Figure 5.4 and 5.5). Move the latch ring to move

the blade toward the neutral position between the terminals,

Figure 5.6. Move the blade slightly to the left to clear the

retaining ‘ears’ of the neutral position retainer then allow the

blade to move to the right so that it is retained by the retainer.

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

Figure 5.3. Selector Blade

Figure 5.6. Utilizing Hot Stick To Engage Selector Blade

Figure 5.5. Selector Blade Disengaged (Shown in Upper Position)

Figure 5.7. Selector Blade Engaged (Shown in Upper Position)

Figure 5.4. Removing Insulating Barrier

Figure 5.2. Access Door Friction Hinge

Figure 5.1. Spring Loaded Kirk

Lock Bolt

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

g. Repeat steps ‘f’ for the remaining selector blades of the SG&T

terminals.

h. Replace the removable barriers into their respective retainers

before proceeding to the next step (Figure 5.3).

i. Close the terminal set door and secure it with the special

Kirk™ lock bolt (if so equipped.) The Kirk™ Lock bolt is pushed

through the door hasp and into the Kirk™ lock itself. Turn the

Kirk™ key to retain the special bolt and release the Kirk™ key

from the lock cylinder. (Figure 5.1).

j. If the other set of terminals are to be accessed and grounded,

start at ‘a’ above to ground the other set of terminals, if the

SG&T is the six terminal type.

k. When all tests are complete, return the selector blades to the

neutral position and re-install the removable barriers.

l. The SG&T may now be removed from the switchgear circuit

breaker compartment using the removal procedure in Section

5.5.

 DANGER

FAILURE TO RETURN THE SELECTABLE BLADES TO THE NEUTRAL

POSITION INSIDE THE SG&T AFTER TESTING IS COMPLETE WILL CAUSE

DEATH, SERIOUS INJURY, AND/OR PROPERTY DAMAGE. A THREE

PHASE BOLTED FAULT WILL OCCUR IF THE CIRCUIT IS INADVERTENTLY

ENERGIZED.

5.5 INSERTION PROCEDURE

 CAUTION

THE MAIN SWITCHGEAR BUS AND SWITCHGEAR LOAD CONNECTIONS

ARE CONNECTED WHEN THIS GROUND AND TEST DEVICE IS RACKED TO

THE ‘CONNECTED’ POSITION. ALL PRIMARY CIRCUITS MUST BE FULLY

DE-ENERGIZED, LOCKED AND TAGGED OUT TO PREVENT INADVERTENT

ENERGIZATION. CONFIRM THAT LINE AND LOAD PRIMARY CIRCUITS

ARE NOT BACKFED THROUGH SECONDARY CONTROL CIRCUITS SUCH AS

POTENTIAL TRANSFORMERS OR CONTROL POWER TRANSFORMERS. THIS

GROUND AND TEST DEVICE MUST BE OPERATED ONLY WITH A WELL

MAINTAINED AND CERTIFIED ‘HOT STICK’.

 DANGER

FAILURE TO REMOVE ALL SOURCES OF POWER FROM THE CIRCUIT

BREAKER COMPARTMENT BEING GROUNDED WILL RESULT IN PERSONAL

INJURY AND PROPERTY DAMAGE. APPROPRIATE PERSONAL PROTECTIVE

EQUIPMENT (PPE) MUST BE IN PLACE PRIOR TO OPERATING THIS SG&T.

 WARNING

EXAMINE THE INSIDE OF THE CELL BEFORE INSERTING THE SG&T FOR

EXCESSIVE DIRT OR ANYTHING THAT MIGHT INTERFERE WITH THE SG&T

TRAVEL.

KEEP HANDS OFF THE TOP EDGE OF THE FRONT BARRIER WHEN PUSHING

A SG&T INTO A CELL. FAILURE TO DO SO COULD RESULT IN BODILY

INJURY, IF FINGERS BECOME WEDGED BETWEEN THE SG&T AND THE

CELL. USE BOTH FULLY OPENED HANDS FLAT ON THE FRONT OF THE SG&T

TO ADVANCE INTO THE STRUCTURE.

If the VCP-W SG&T is being inserted into an upper compartment

or will be positioned in a lower compartment without the use of a

drawout ramp or dockable dolly, the extension rails must first be

put in position. Carefully engage the left and right extension rails to

the fixed structure rails and ensure they are properly seated in place

(Figure 5.9). Once the extension rails are properly in place, the SG&T

can be carefully loaded on the extension rails using an overhead lifter

and lifting yoke. Remove the lifting yoke when the SG&T is securely

seated on the extension rails.

Figure 5.9. Inserting Guide Rails

Figure 5.10. Racking the SG&T Device

Push the SG&T into the compartment until the Disconnect/Test

position is reached as confirmed by a metallic sound of the racking

latch engaging the racking nut (Figures 5.10). Once the SG&T is in

the Disconnect/Test position, the extension rails can be removed.

 WARNING

DO NOT USE ANY TOOL OTHER THAN THE RACKING-IN CRANK PROVIDED

TO LEVER THE SG&T FROM TEST OR CONNECTED POSITIONS. CORRECT

OPERATION OF SOME OF THE INTERLOCKS IS DEPENDENT ON USE OF THE

PROVIDED RACKING CRANK. PERSONAL INJURY OR EQUIPMENT DAMAGE

COULD RESULT FROM THE USE A TOOL OTHER THAN THE PROPER

RACKING-IN CRANK.

To move the VCP-W SG&T to the CONNECTED position, engage

the racking-in crank with the structure mounted racking shaft

(Figure 5.10). Turn the racking-in crank in a clockwise direction and

the SG&T will move slowly toward the rear of the structure. When

the SG&T reaches the CONNECTED position (Figure 5.11), it will

become impossible to continue turning the racking-in crank. The

CONNECTED position will also be indicated by a red flag indicator

just below the racking device.

5.5 REMOVAL PROCEDURE

To remove the SG&T device from the CONNECTED position, engage

the racking handle onto the circuit breaker compartment mounted

racking shaft. Turn the racking handle counterclockwise until the

SG&T reaches the ‘disconnect/test’ position. When the ‘disconnect/

test’ position is reached, it will not be possible to turn the racking

handle any further. The ‘disconnect/test’ position is indicated by a

green indicator below the racking device.

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

Figure 5.11. SG&T Device In Connect Position

Figure 5.12. Removing SG&T using Lift / Pull Handle

To remove the SG&T from the cell, install the extension guide rails.

Pull up on the Lift/Pull Handle as shown in Figure 5.12 then pull the

device out onto the extension rails. Use a lifting yoke and overhead

lifter to remove the SG&T from the extension rails.

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

SECTION 6: INSPECTION AND

MAINTENANCE

6.1 INTRODUCTION

 DANGER

DO NOT WORK ON A SELECTABLE GROUND AND TEST DEVICE IN THE

“CONNECTED” POSITION.

DO NOT DEFEAT ANY SAFETY INTERLOCKS.

FAILURE TO FOLLOW ANY OF THESE INSTRUCTIONS MAY CAUSE DEATH,

SERIOUS BODILY INJURY, OR PROPERTY DAMAGE. SEE SECTION 2 - SAFE

PRACTICES FOR MORE INFORMATION.

6.2 FREQUENCY OF INSPECTION

Inspect the selectable ground and test device at least once a year or

before each use, especially in a severe service condition.

6.3 INSPECTION AND MAINTENANCE PROCEDURES

Insulation

Visually inspect all insulating barriers. Ensure that there is not

dirt visible on the surface of any of the barriers. If dirt is found,

clean with a lint-free cloth. If a solvent is required to cut dirt, used

Stoddard’s Solvent (Eaton part number 55812CA) or commercial

equivalent.

Hardware

Visually inspect all hardware. Replace any damaged or missing

hardware with parts equivalent to those provided with the selectable

ground and test device.

Power Frequency Withstand Test

Individually energize each terminal (without cables, but with

insulating barriers) with the frame and device ground connection

system and all other terminals grounded. See Section 6-4 for

procedure.

6.4 INSULATION INTEGRITY CHECK

A sinusoidal AC voltage shall have a crest value of no less than 1.414

times the rated power frequency withstand voltage value specified,

and shall be applied to each terminal as specified in Section 6.3. The

frequency shall be within +/- 20% of the rated power frequency. For

5kV, the test voltage shall be gradually increased from zero to 15 kV

rms and held for 1 minute without flashover. For 7.5kV and 15kV, the

test voltage shall be gradually increased from zero to 27kV rms and

held for 1 minute without flashover.

Instruction Book IB182312EN June 2016 www.eaton.com

50/75/150 VCP-W

Selectable Ground and Test Device

SECTION 7: REPLACEMENT OF

COMPONENTS

7.1 GENERAL

In order to minimize production downtime, it is recommended that

an adequate quantity of spare parts carried in stock. The quantity

will vary from customer to customer, depending upon the service

severity and continuity requirements. Each customer should develop

his own level based on operating experience.

7.1.1 ORDERING INSTRUCTIONS

1. Always specify the selectable ground and test device rating

information and general order number, from the nameplate.

2. Describe the item, give the style number, and specify the

quantity required.

3. Specify the method of shipping desired.

4. Send all orders or correspondence to the nearest Eaton’s

Electrical Services & Systems sales office.

5. Include negotiation number with order when applicable.

Table 5. Common Replacement Parts

ITEMS DESCRIPTIONS

CURRENT

EATON STYLE

NUMBER

DISCONNECTS

Primary

Disconnects

1200 / 2000 Primary Disconnect Assembly 94B8000G98

3000 Primary Disconnect Assembly 94B8000G99

Eaton

1000 Eaton Boulevard

Cleveland, OH 44122

United States

Eaton.com

Printed in USA

Publication No. IB182312EN

June 2016

Eaton is a registered trademark.

All trademarks are property

of their respective owners.

Eaton 75 VCP-W-SGT Instruction book

Brand: Eaton

Model: 75 VCP-W-SGT

Type: Instruction book

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