Eaton 50 VCP-TR16 Technical manual

IB131016EN For more information visit: www.Eaton.com
Instructions for the Use, Operation and Maintenance of
Types VCP-T and VCP-TR Vacuum Circuit Breakers
IB131016EN Effective November 2017
VCP-TR Fixed (up to 25kA)
VCP-T Drawout (up to 25kA)
VCP-TR Fixed (up to 40kA)
VCP-T Drawout (up to 40kA)

Instruction Book
Effective: November 2017 Page iii
IB131016EN For more information visit: www.Eaton.com
WARNING
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 CIRCUIT BREAKERS.
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 CONTACT EATON
THE CIRCUIT BREAKER ELEMENTS 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 SAFETY CODES, SAFETY STANDARDS
AND/OR REGULATIONS AS THEY MAY BE
APPLIED TO THIS TYPE OF EQUIPMENT MUST BE
STRICTLY ADHERED TO.
SERIOUS INJURY, INCLUDING DEATH, CAN
RESULT FROM FAILURE TO FOLLOW THE
PROCEDURES OUTLINED IN THIS MANUAL.
THESE CIRCUIT BREAKER ELEMENTS ARE SOLD
PURSUANT TO A NON-STANDARD PURCHASING
AGREEMENT WHICH LIMITS THE LIABILITY OF
THE MANUFACTURER.
Eaton Corporation
Moon Township, PA. 15108
All possible contingencies which may arise during installation, operation or maintenance, and all details and
variations of this equipment do no 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.

Instruction Book
Page iv Effective: November 2017
For more information visit: www.Eaton.com IB131016EN
TABLE OF CONTENTS Page
SECTION 1: INTRODUCTION
1-1 VCP-T and VCP-TR Vacuum Circuit Breaker Ratings.................................................................................................................................. 1
1-2 Types VCP-T and VCP-TR Outlines and Dimensions ................................................................................................................................. 4
SECTION 2: SAFE PRACTICES
SECTION 3: RECEIVING, HANDLING AND STORAGE
3-1 Receiving .....................................................................................................................................................................................................12
3-2 Handling .......................................................................................................................................................................................................12
3-2.1 Unpacking .................................................................................................................................................................................. 12
3-2.2 Lifting (up to 25kA) ..................................................................................................................................................................... 13
3-2.3 Lifting (up to 40kA) ..................................................................................................................................................................... 13
3-3 Storage ....................................................................................................................................................................................................... 14
3-4 Typical Breaker and Cassette Weights ...................................................................................................................................................... 15
SECTION 4: INSTALLATION AND WIRING
4-1 Initial Inspection ......................................................................................................................................................................................... 22
4-2 Electrical Clearances ................................................................................................................................................................................. 22
4-3 Interphase Barriers...................................................................................................................................................................................... 22
4-4 Front Cover ................................................................................................................................................................................................ 22
4-5 Installing Fixed Circuit Breaker .................................................................................................................................................................. 22
4-5.1 Fixed Mechanical Interfaces ...................................................................................................................................................... 22
4-5.2 Fixed Electrical Interfaces ......................................................................................................................................................... 22
4-6 Installing Drawout Circuit Breaker............................................................................................................................................................... 23
4-6.1 Drawout Mechanical Interfaces ................................................................................................................................................. 23
4-6.2 Circuit Breaker Positioning ........................................................................................................................................................ 24
4-6.3 Drawout Electrical Interfaces ..................................................................................................................................................... 26
4-6.4 Levering Circuit Breaker ............................................................................................................................................................ 28
SECTION 5: DESCRIPTION AND OPERATION
5-1 Introduction ................................................................................................................................................................................................ 31
5-2 Vacuum Interrupter Assembly .................................................................................................................................................................... 31
5-2.1 Contact Erosion Indicator (up to 25kA) ...................................................................................................................................... 34
5-2.2 Contact Wipe and Stroke (up to 25kA) ...................................................................................................................................... 34
5-2.3 Contact Wipe and Erosion (up to 40kA)..................................................................................................................................... 34
5-3 Stored Energy Mechanism ......................................................................................................................................................................... 35
5-3.1 Manual Operation ...................................................................................................................................................................... 35
5-3.2 Electrical Operation ................................................................................................................................................................... 36
5-3.3 Trip Free Operation ................................................................................................................................................................... 36
5-3.4 Anti-Pump Feature .................................................................................................................................................................... 36
5-3.5 Latch Check Switch ................................................................................................................................................................... 36
5-3.6 Mechanical Interlocks ................................................................................................................................................................ 36
5-4 Connection Diagrams ...................................................................................................................................................................................37
5-4.1 Timing .........................................................................................................................................................................................37
5-4.2 Sensors........................................................................................................................................................................................37
5-5.4 Trip Actuator ...............................................................................................................................................................................37
5-6 Accessory Devices Secondary Connections ................................................................................................................................................43
5-5 Electronic Tripping System ..........................................................................................................................................................................43
5-5.1 Microprocessor-Based Trip Unit..................................................................................................................................................44
5-5.2 Rating Plug .................................................................................................................................................................................44
5-5.3 Current.........................................................................................................................................................................................45
5-6.1 Plug-in Electrical Accessories......................................................................................................................................................46
5-6.2 Internal Electrical Accessories.....................................................................................................................................................47
5-6.3 Mechanical Accessories .............................................................................................................................................................49
SECTION 6: INSPECTION AND MAINTENANCE
6-1 Introduction ..................................................................................................................................................................................................50
6-2 Frequency of Inspection and Maintenance .................................................................................................................................................50

Instruction Book
Effective: November 2017 Page v
IB131016EN For more information visit: www.Eaton.com
6-3 Vacuum Interrupter Integrity Test .................................................................................................................................................................49
6-4 Contact Erosion (up to 25kA) .......................................................................................................................................................................51
6-5 Contact Wipe (up to 25kA) ...........................................................................................................................................................................51
6-6 Insulation ......................................................................................................................................................................................................54
6-7 Insulation Integrity Check..............................................................................................................................................................................54
6-8 Primary Circuit Resistance Check ...............................................................................................................................................................54
6-9 Mechanism Check .......................................................................................................................................................................................54
6-10 Lubrication ...................................................................................................................................................................................................54
6-11 Troubleshooting ...........................................................................................................................................................................................54
6-14 End of Life Procedures…………………………………………………………………………………………………………………………………..59
6-15 Failure Reporting………………………………………………………………………………………………………………………………………….59
SECTION 7: RENEWAL PARTS
7-1 General ........................................................................................................................................................................................................59
7-2 Ordering Instructions.....................................................................................................................................................................................59
7-3 Mechanism and Related Parts .....................................................................................................................................................................60
7-4 Current Path..................................................................................................................................................................................................61
7-5 Electrical Attachments ..................................................................................................................................................................................62
7-6 Other Breaker Related Parts.........................................................................................................................................................................65
7-7 Trip Unit and Related Parts...........................................................................................................................................................................68
LIST OF FIGURES
1-1 VCP-TR Fixed Breaker Outlines (except 25kA, 2000/2500A and all 31.5/40kA)...................................................................................4
1-2 VCP-T Drawout Breaker Outlines (except 25kA, 2000A and all 31.5/40kA) .........................................................................................5
1-3 VCP-T Breaker Cassette Outlines (except 25kA, 2000A and all 31.5/40kA) .........................................................................................6
1-4 VCP-TR Fixed Breaker Outlines (25kA, 2000/2500A and all 31.5/40kA) ..............................................................................................7
1-5 VCP-T Drawout Breaker Outlines (25kA, 2000A and all 31.5/40kA) .....................................................................................................8
1-6 VCP-T Breaker Cassette Outlines (25kA, 2000A and all 31.5/40kA) ....................................................................................................9
-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
3-1 Fixed Breaker Shown Mounted on Pallet .............................................................................................................................................12
3-2 Keyed Shipping Clamp Being Removed from Fixed Breaker ..............................................................................................................13
3-3 Optional Lifting Sling Shown on 40kA Breaker ....................................................................................................................................13
3-3a 40kA Breaker Shown Being Lifted with Optional Lifting Slings ............................................................................................................13
3-4 Preferred Lifting Method Using Lifting Yoke To Lift 25kA Breaker .......................................................................................................14
3-4a Preferred Lifting Method Using Lifting Yoke To Lift 40kA Breaker .......................................................................................................14
3-5 Front and Rear Views All VCP-TR Fixed (except 25kA, 2000/2500A and all 31.5/40kA) ....................................................................16
3-6 Front and Rear Views All VCP-T Drawout (except 25kA, 2000A and all 31.5/40kA) ..........................................................................17
3-7 Front and Rear Views Drawout Cassette (except 25kA, 2000A and all 31.5/40kA) ............................................................................18
3-8 Front and Rear Views VCP-T Drawout Breaker (25kA, 2000A and all 31.5/40kA) ..............................................................................19
3-9 Front and Rear Views Drawout Cassette (25kA, 2000A and all 31.5/40kA).........................................................................................20
3-10 Typical VCP-T Front Cover...................................................................................................................................................................21
4-1 Typical Fixed Non-Automatic VCP-TR 15KV Circuit Breaker...............................................................................................................23
4-2 Bottom View of VCP-TR Circuit Breaker showing Mounting Holes .....................................................................................................23
4-3 Cassette Rejection Interlock Pin Positioning .......................................................................................................................................24
4-4 Position Circuit Breaker with Lifter on Removable Extension Rails .....................................................................................................25
4-5 Breaker Shoot Bolts Against Cassette..................................................................................................................................................25
4-6 Shoot Bolt Handle in Up (Locked) Position...........................................................................................................................................25
4-7 Shoot Bolt Handle Shown in Position “C” - Shoot Bolts Protrude Fully from Cradle ............................................................................26
4-8 Shoot Bolt Handle Shown in Position “B” - Shoot Bolts Protrude Partially from Cradle .......................................................................26
4-9 Shoot Bolt Handle Shown in Position “A” - Shoot Bolts Retracted Fully Inside Cradle ........................................................................26
4-10 Circuit Breaker Umbilical Cord Shown Connected to Breaker Prior to Breaker Insertion ....................................................................27
4-11 Secondary Connector Viewed from Rear of Breaker............................................................................................................................27
4-12 Cassette Secondary Connector and Interlock Lever ...........................................................................................................................27
4-13 Drawout Cassette with Primary Safety Shutters Open Showing Fixed Primary Stabs ........................................................................28
4-14 Circuit Breaker Shown in Levered Out (DISCONNECT) Position - Correct for Breaker Positioning ...................................................28
4-15 Circuit Breaker Shown in Levered In (CONNECT) Position - Incorrect for Breaker Positioning...........................................................28

Instruction Book
Page vi Effective: November 2017
For more information visit: www.Eaton.com IB131016EN
4-16 Cradle Mounted Levering Mechanism .....................................................................................................................................................29
4-17 Levering Circuit Breaker ..........................................................................................................................................................................29
4-18 Circuit Breaker Connected as Indicated by Fully Connected Position Label ...........................................................................................29
4-19 Circuit Breaker Shown in CONNECT Position with Secondary Connections Made ................................................................................30
4-20 Primary Safety Shutters Shown in Open Position with Fixed Primary Stabs Exposed.............................................................................30
4-21 Padlocking Device on Side of Cassette ...................................................................................................................................................30
5-1 Rigid Frame Construction ........................................................................................................................................................................31
5-2 VCP-TR Fixed Non-automatic Circuit Breaker (Front Cover Removed) ..................................................................................................32
5-3 VCP-T Drawout Circuit Breaker (Front Cover Removed) ........................................................................................................................33
5-4 Typical Fixed 50 VCP-TR Interrupter Assembly ......................................................................................................................................34
5-5 Typical Drawout 150 VCP-T Interrupter Assembly ..................................................................................................................................34
5-6 Breaker Closing Springs Being Manually Charged...................................................................................................................................35
5-7 Motor Operator Shown Installed ..............................................................................................................................................................36
5-8 Typical Cover Mounted Key Interlock ......................................................................................................................................................36
5-9 Typical Mechanical Cable Interlock .........................................................................................................................................................37
5-10 VCP-T and VCP-TR Non Trip Unit Connection Diagram .........................................................................................................................38
5-11 VCP-T and VCP-TR with 520V Trip Unit Connection Diagram.................................................................................................................39
5-12 VCP-T and VCP-TR with 1150V Trip Unit Connection Diagram...............................................................................................................40
5-12A VCP-T and VCP-TR with 520MCV Trip Unit Connection Diagram...........................................................................................................41
5-13 VCP-T Drawout Umbilical Cord and Connector Wiring Diagram .............................................................................................................42
5-14 Secondary Connectors Shown Mounted without Secondary Protective Hood in Place ..........................................................................37
5-15 Top View Secondary Connectors ............................................................................................................................................................43
5-16 Secondary Male Connector with Female Pins .........................................................................................................................................43
5-17 Optional Terminal Block ...........................................................................................................................................................................43
5-18 AMP Secondary Wiring Removal Tool (AMP#305183) ...........................................................................................................................43
5-19 Digitrip RMS 1 150Vi Programmable Trip Unit Installed in VCP-T Circuit Breaker...................................................................................44
5-20 Hand Held Tester......................................................................................................................................................................................44
5-21 Through-The-Window Electrical Accessories ..........................................................................................................................................46
5-22 Shunt Trip Device ....................................................................................................................................................................................46
5-23 Spring Release Device ............................................................................................................................................................................46
5-24 Undervoltage Release Device .................................................................................................................................................................47
5-25 Rugged Motor Operator............................................................................................................................................................................48
5-26 Auxiliary Switch ........................................................................................................................................................................................48
5-27 Pushbutton Cover Mounted .....................................................................................................................................................................49
5-28 Door Escutcheon and Gasket ..................................................................................................................................................................49
6-1 Contact Erosion Mark Visible on Stem ....................................................................................................................................................53
6-2 Contact Wipe Inspection Area .................................................................................................................................................................53
6-3 Satisfactory Contact Wipe Condition with Breaker Closed ......................................................................................................................53
6-4 Unsatisfactory Contact Wipe Condition with Breaker Closed ..................................................................................................................53
6-5 Contact Wipe Measurement 40kA Breaker...............................................................................................................................................54
6-6 40kA Breaker Contact Wipe Graphic .......................................................................................................................................................54
6-7 Circuit Breaker Lubrication .......................................................................................................................................................................58
6-8 Drawout Cassette Lubrication ..................................................................................................................................................................59
LIST OF TABLES
Table Title Page
1.1 VCP-T and VCP-TR Ratings ......................................................................................................................................................................2
3.1 Circuit Breaker and Cassette Weights .....................................................................................................................................................15
4.1 Cassette Rejection Interlock Pin Locations...............................................................................................................................................23
5.1 Digitrip Trip Units .....................................................................................................................................................................................44
5.2 Current Sensors and Matching Rating Plugs ...........................................................................................................................................45
5.3 Shunt Trip Ratings ...................................................................................................................................................................................47
5.4 Spring Release Ratings ...........................................................................................................................................................................47
5.5 Undervoltage Release Ratings ................................................................................................................................................................47
5.6 Motor Operator Ratings ...........................................................................................................................................................................48
5.7 Auxiliary Switch Contacts Interrupting Capacities.....................................................................................................................................48
6.1 Inspection and Maintenance Procedures .................................................................................................................................................51
6.2 Test Voltage..............................................................................................................................................................................................52
6.3 Typical Resistance Measurements ..........................................................................................................................................................55
6.4 Troubleshooting Guide..............................................................................................................................................................................56

Instruction Book
Effective: November 2017 Page 1
IB131016EN For more information visit: www.Eaton.com
SECTION 1: INTRODUCTION
The purpose of this book is to provide instructions for
unpacking, storage, use operation and maintenance
of VCP-T drawout type and VCP-TR fixed type
Vacuum Circuit Breakers. VCP-T and VCP-TR are
compact vacuum interrupting elements designed for
applications such as: mine power centers, portable
power stations, fixed breaker or drawout switchgear
and portable generators, all without compromising
metal clad expectations. VCP-T and VCP-TR
breakers were specifically designed to provide proven
reliable performance in a small package. The circuit
breakers are available in voltage classes of 4.76, 8.25
and 15.0 kV. They are tested in accordance with ANSI
C37.04 and C37.09 (Table 1.1).
1-1 VCP-T and VCP-TR Vacuum Breaker Ratings
Refer to Tables 1.1 and 1.2 on pages 2 and 3.
The circuit breaker's nameplate provides complete
rating information. Reliable control and protection for
medium voltage equipment and circuits are achieved
through the use of VCP-T and VCP-TR Vacuum
Breakers.
WARNING
SATISFACTORY PERFORMANCE OF THESE
BREAKERS 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
CIRCUIT BREAKERS.
VCP-T and VCP-TR CIRCUIT BREAKERS ARE
PROTECTIVE DEVICES, AS SUCH, THEY ARE
MAXIMUM RATED DEVICES. THEREFORE, THEY
SHOULD NOT UNDER ANY CIRCUMSTANCES BE
APPLIED OUTSIDE THEIR NAMEPLATE RATINGS.

Instruction Book
Effective: November 2017 Page 2
For more information visit: www.Eaton.com IB131016EN
Table 1.1 VCP-T and VCP-TR Ratings (ANSI C37. 04 and C37. 09) (continued on next page)
Identification Rated Values
Circuit
Breaker
Type
Voltage
Class
Insulation Level Continuous
Current
Short Circuit `
Breaking
Current
Short Circuit
Making
Current
Mechanical
Endurance
C - O
Power
Frequency
Impulse
Withstand
kV rms kV rms kV Peak Amperes kA rms kA Peak Operations
50 VCP-T16
and
50 VCP-TR16 4.76 19 60 600
1200
160016 42
10000
10000
10000
50 VCP-T20
and
50 VCP-TR20 4.76 19 60 600
1200
1 60020 52
10000
10000
10000
50 VCP-T25
and
50 VCP-TR25 4.76 19 60
600
1200
1600
2000
2500
25 65
10000
10000
10000
10000
10000
50 VCP-T32
and
50 VCP-TR32 4.76 19 60
600
1200
2000
2500
31.5 82
10000
10000
10000
10000
50 VCP-T40
and
50 VCP-TR40 4.76 19 60
600
1200
2000
2500
40 104
10000
10000
10000
10000
75 VCP-T16
and
75 VCP-TR16 8.25 20 60600
1200
160016 42
10000
10000
10000
75 VCP-T20
and
75 VCP-TR20 8.25 20 60600
1200
160020 52
10000
10000
10000
75 VCP-T25
and
75 VCP-TR25 8.25 20 60
600
1200
1600
2000
2500
25 65
10000
10000
10000
10000
10000
75 VCP-T32
and
75 VCP-TR32 8.25 20 60
600
1200
2000
2500
31.5 82
10000
10000
10000
10000
75 VCP-T40
and
75 VCP-TR40 8.25 20 60
600
6040
1200
2000
2500
40 104
10000
10000
10000
10000
 Use 15kV Breaker and Cassette when 95kV Impulse Withstand required  Also 2 Second Short Time Current Rating
 1600A and 2500A available as fixed VCP-TR circuit breaker only

Instruction Book
Effective: November 2017 Page 3
IB131016EN For more information visit: www.Eaton.com
Table 1.1 VCP-T and VCP-TR Ratings (ANSI C37. 04 and C37. 09) (continued from previous page)
Identification Rated Values
Circuit
Breaker
Type
Voltage
Class
Insulation Level Continuous
Current
Short Circuit `
Breaking
Current
Short Circuit
Making
Current
Mechanical
Endurance
C - O
Power
Frequency
Impulse
Withstand
kV rms kV rms kV Peak Amperes kA rms kA Peak Operations
150 VCP-T16
and
150 VCP-TR16 15 36 95 600
1200
160016 42
10000
10000
10000
150 VCP-T20
and
150 VCP-TR20 15 36 95 600
1200
160020 52
10000
10000
10000
150 VCP-T25
and
150 VCP-TR25 15 36 95
600
1200
1600
2000
2500
25 65
10000
10000
10000
10000
150 VCP-T32
and
150 VCP-TR32 15 36 95
600
1200
2000
2500
31.5 82
10000
10000
10000
10000
150 VCP-T40
and
150 VCP-TR40 15 36 95
600
1200
2000
2500
40 104
10000
10000
10000
10000
Use 15kV Breaker and Cassette when 95kV Impulse Withstand required Also 2 Second Short Time Current Rating
1600A and 2500A available as fixed VCP-TR circuit breaker only
Tested for capacitor switching capabilities. “General Purpose” to ANSI C37: Cable charging = 25A. "Definite Purpose" to ANSI C37:
Back-to-back equals 250A and 1000A. Ratings of 250 and 1000A cover capacitor bank applications from 75 to 1000A.
Inrush current and frequency rating = 18 kApk at 2.4 kHz.

Instruction Book
Effective: November 2017 Page 4
For more information visit: www.Eaton.com IB131016EN
1-2 Types VCP-T and VCP-TR Outlines and Dimensions (Circuit Breakers and Drawout Cassettes)
Figure 1-1 VCP-TR Fixed Breaker Outlines in inches [mm] (except 25kA, 2000/2500A and all 31.5/40kA)