Eaton DHP VR + Series Instruction Book

Instruction Book IB182917EN

Supersedes July 2018 Eective

September 2018

DHP-VR

VR-Series+ Replacement Circuit Breaker

50DHP-VR+ 250 1200A Shown

DHP-VR

VR-Ser ies+ Replacement Circuit Breaker

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.

m DANGER

IMPROPERLY INSTALLING OR MAINTAINING THESE PRODUCTS MAY CAUSE THE EQUIPMENT TO FAIL, RESULTING IN DEATH, SEVERE PERSONAL INJURY, EQUIPMENT DAMAGE AND/OR IMPROPER OPERATION.

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 BOOKLET 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 CIRCUIT BREAKERS 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, SEVERE PERSONAL INJURY, EQUIPMENT DAMAGE AND/OR IMPROPER OPERATION.

ALL SAFETY CODES, SAFETY STANDARDS AND/OR REGULATIONS AS THEY MAY BE APPLIED TO THIS TYPE OF EQUIPMENT MUST BE STRICTLY ADHERED TO.

THESE VACUUM REPLACEMENT CIRCUIT BREAKERS ARE DESIGNED TO BE INSTALLED PURSUANT TO THE AMERICAN NATIONAL STANDARDS INSTITUTE (ANSI). SERIOUS INJURY, INCLUDING DEATH, SEVERE PERSONAL INJURY, EQUIPMENT DAMAGE AND/OR IMPROPER OPERATION.

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.

Instruction Book IB182917EN September 2018 www.eaton.com

Table of Contents

DISCLAIMER OF WARRANTIES AND LIMITATION OF LIABILIT Y ii

SECTION 1: INTRODUCTION 4

1.1 VISUAL INSTRUCTION BOOKLET ESSENTIALS 4

1.2 QUICK RESPONSE CODE 4

1.3 AVAILABLE DHP-VR+ CIRCUIT BRE AKERS 4

SECT ION 2: SAFE PRACTICES 8

SECT ION 3: RECEIVING, HANDLING, AND STORAGE 9

3.1 RECEIVING 9

3.2 HANDLING 10

3.3 STORAGE 10

3.4 APPROXIMATE WEIGHT BY TYPE 10

SECT ION 4: DESCRIPTION AND OPERATION 15

4.1 VACUUM INTERRUPTER 15

4.1.1 VACUUM INTERRUPTER ASSEMBLY 15

4.1.2 CONTACT EROSION INDICATOR 15

4.1.3 CONTACT WIPE AND STROKE 16

4.2 LINE AND LOAD CONDUCTOR ASSEMBLIES 16

4.3 STORED ENERGY MECHANISM 16

4.3.1 CLOSING SPRING CHARGING 16

4.3.2 CLOSING OPERATION 16

4.3.3 TRIPPING OPERATION 17

4.3.4 TRIP-FREE OPERATION 17

4.4 CONTROL SCHEMES 17

4.4.1 TIMING 17

4.5 SECONDARY DISCONNECT CONTACT BLOCK 17

4.6 INTERLOCKS 19

4.6.1 RACKING-IN INTERLOCK 19

4.6.2 CIRCUIT BREAKER - CODE PLATE 19

4.6.3 ANTI-CLOSE INTERLOCK 19

4.6.4 FLOOR TRIPPING AND CLOSING SPRING RELEASE INTERLOCKS 19

4.6.5 RAIL LATCH 19

4.7 MISCELLANEOUS ITEMS 20

4.7.1 GROUNDING CONTACT 20

4.7.2 MOC AND TOC OPER ATIONS 20

4.7.3 OPERATIONS COUNTER 20

4.7.4 RACKING DEVICE 20

DHP-VR

VR-Ser ies+ Replacement Circuit Breaker

SECT ION 5: INSPECTION & INSTALLATION 27

5.1 EXAMINATION FOR DAMAGE 27

5.1.1 NAMEPLATE VERIFICATION 27

5.2 SURE CLO SE MECHANISM ADJUSTMENT 27

5.3 MECHANISM OPERATED CELL (MOC) SWITCH PANTOGR APH ADJUSTMENT 28

5.4 MANUAL OPERATION CHECK 28

5.5 VACUUM INTERRUPTER INTEGRITY 28

5.6 INSULATION 28

5.7 CONTACT EROSION AND WIPE 28

5.8 PRIMARY CIRCUIT RESISTANCE 28

5.9 SNUBBER ADJUSTMENT 28

5.10 ELECTRICAL OPERATIONS CHECK 28

5.11 RACKING CIRCUIT BREAKER INTO CIRCUIT BREAKER COMPARTMENT 30

5.12 REMOVING CIRCUIT BREAKER FROM CIRCUIT BREAKER COMPARTMENT 30

SECT ION 6: INSPECTION & MAINTENANCE 31

6.1 INSPECTION FREQUENCY 31

6.2 INSPECTION AND MAINTENANCE PROCEDURES 31

6.3 VACUUM INTERRUPTER INTEGRITY TEST 32

6.4 CONTACT EROSION AND WIPE 32

6.5 INSULATION 33

6.6 INSULATION INTEGRIT Y CHECK 33

6.7 PRIMARY CIRCUIT RESISTANCE CHECK 33

6.8 VR-SERIES+ CIRCUIT BREAKER ELEMENT MECHANISM CHECK 33

6.8.1 CLOSURE™ TEST (50DHP-VR+ Models) 33

6.8.2 CLOSURE™ TEST (75/150DHP-VR+ Models) 37

6.9 MAINTENANCE RECOMMENDATION 40

SECT ION 7: REPL ACEMENT PARTS 42

7.1 GENERAL 42

7.2 ORDERING INSTRUCTIONS 42

Instruction Book IB182917EN September 2018 www.eaton.com

iii

DHP-VR

VR-Ser ies+ Replacement Circuit Breaker

SECTION 1: INTRODUCTION

This instruction booklet provides information on receiving and handling, storage, installation, operation and maintenance of the DHP VR-Series Replacement circuit breakers (also referred to as VR-Series designed to be used in existing Westinghouse type DHP metal-clad switchgear. The VR-Series and mechanical performance as compared to the design ratings of the original circuit breaker. VR-Series reliable control, protection and performance, with ease of handling and maintenance. Like ratings of the VR-Series interchangeable with each other.

The VR-Series

• 10-year or 10,000 operation scheduled maintenance intervals.

When applied in “usual service conditions” as defined by IEEE C37.04-1999, the VR-Series maintenance only once every ten years or ten thousand operations, which ever comes first.

ote:N See Inspection & Maintenance section in this booklet for details.

• Increased mechanical endurance. Circuit breakers in repetitive

duty applications offer 50% more operations over conventional vacuum circuit breaker elements before parts replacement may be needed.

• Increased short circuit capability. The VR-Series+ circuit breaker

short circuit capability can be increased to 41 kA, provided a bus bracing study is performed and the switchgear is adequately braced to meet the requirements per IEEE C37.59.

Use this instruction bulletin in conjunction with the technical information provided with the original equipment order which includes electrical control schematic and wiring diagrams, outline diagrams, installations plans, and procedures for installation and maintenance of accessory items.

Satisfactory performance is dependent on proper application, correct installation, and adequate maintenance. It is very important that this installation and maintenance instruction booklet be read and followed closely to achieve optimum performance and a long useful circuit breaker life in its application.

1.1 VISUAL INSTRUCTION BOOKLET ESSENTIALS

Eaton provides additional documentation designed to enhance the technical information provided in this instruction booklet for the VR-Series (VIBE) is a digital supplemental booklet featuring user interactive content and informative videos intended to assist with the maintenance of the VR-Series available for immediate download at www.eaton.com/VR-Series.

vacuum replacement circuit breaker. The Vacuum

circuit breakers provide superior electrical

Circuit breakers provide

circuit breakers are

circuit breaker element offers:

circuit breaker element requires

circuit breakers. The Visual Instruction Booklet Essentials

circuit breaker. The VIBE document is

) are

Figure 1.1. Quick Response Code

VR-Series+ QR Code

1.2 QUICK RESPONSE CODE

VR-Series+ circuit breakers have a quick response code (QR Code) on the escutcheon of the circuit breaker front cover. This QR Code is a matrix barcode that provides direct access to download VR-Series specific documentation, such as product instruction booklets and the VIBE documentation. See Figure 1.1 for the featured VR-Series Code.

ote:N A smart phone with an adequate QR Code Scanner application must be

used. Downloading content may incur data charges from the mobile service provider.

m WARNING

SATISFACTORY PERFORMANCE OF THESE CIRCUIT BREAKERS IS CONTINGENT UPON PROPER APPLICATION, CORRECT INSTALLATION AND ADEQUATE MAINTENANCE. THIS INSTRUCTION BOOKLET MUST BE CAREFULLY READ AND FOLLOWED IN ORDER TO OBTAIN OPTIMUM PERFORMANCE FOR LONG USEFUL LIFE OF THE CIRCUIT BREAKERS. IT IS FURTHER RECOMMENDED THAT THE INSTALLATION BE PERFORMED BY AN EATON TRAINED ENGINEER OR TECHNICIAN.

VR-SERIES THEY ARE MAXIMUM RATED DEVICES. THEREFORE, THEY SHOULD NOT UNDER ANY CIRCUMSTANCE BE APPLIED OUTSIDE THEIR NAMEPLATE RATINGS.

ALL POSSIBLE CONTINGENCIES WHICH MIGHT ARISE DURING INSTALLATION, OPERATION, OR MAINTENANCE, AND ALL DETAILS AND VARIATIONS OF THIS EQUIPMENT ARE NOT COVERED BY THESE INSTRUCTIONS. IF FURTHER INFORMATION IS DESIRED BY THE PURCHASER REGARDING A PARTICULAR INSTALLATION, OPERATION, OR MAINTENANCE OF THIS EQUIPMENT, THE LOCAL EATON REPRESENTATIVE SHOULD BE CONTACTED.

1.3 AVAILABLE DHP-VR+ CIRCUIT BREAKERS

Refer to Table 1.

CIRCUIT BREAKERS ARE PROTECTIVE DEVICES, AS SUCH,

Instruction Book IB182917EN September 2018 www.eaton.com

Table 1. DHP-VR+ Availability and Interchangeability

DHP-VR

VR-Ser ies+ Replacement Circuit Breaker

Nominal 3-Phase

Maximum

Existing DHP

Circuit

Breaker Type

50DHP75 50DHP-VR

50DHEP250 50DHEP-VR

50DHP250 50DHP-VR

H50DHP250

50DHP250 50DHP-VR

75DHP500 75DHP-VR

75DVP500 75DVP-VR

150DHP500 150DHP-VR

150DVP500 150DVP-VR

H150DHP500 150DHP-VR

150DHP500 150DHP-VR

150DHP750 150DHP-VR

150DVP750 150DVP-VR

H150DHP750 150DHP-VR

150DHP750C 150DHP-VR

H150DHP750C 150DHP-VR

150DHP500/750 150DHP-VR

All circuit breakers have a 3 second short-time and 3-cycle interrupting ratings.

Non-standard rating.

Requires bus bracing study and additional switchgear bracing.

DHP-VR Circuit Breaker

Type

75 4.76 75 1200 1.36 19 60 8.8 12 19 / 32

75U

250 4.76 250 1200 / 2000 1.24 19 60 29 36 58 / 97

50DHP-VR

250H

500 8.25 500 1200 / 2000 1.25 36 95 33 41 66 / 111

500 15 500 1200 / 2000 1.30 36 95 18 23 37 / 62

500U

500H 15 500 1200 / 2000 1.30 36 95 18 23 58 / 97

500U

750 15 750 1200 / 2000 1.30 36 95 28 36 58 / 97

750H 15 750 1200 / 2000 1.30 36 95 28 36 77 / 130

750C 15 750 1200 / 2000 1.30 36 95 28 36 58 / 97

750CH 15 750 1200 / 2000 1.30 36 95 28 36 77 / 130

Voltage

kV MVA Amps K

4.76 75 1200 1.24 19 60 29 36 58 / 97

4.76 250 1200 / 2000 1.24 19 60 29 36 78 / 132

4.76 N/A 1200 / 2000 1.00 19 60 41 41 78 / 132

15 750 1200 / 2000 1.30 36 95 28 36 58 / 97

15 N/A 1200 / 2000 1.00 36 95 41 41 77 / 130

MVA Class

Existing Circuit Breaker Rated Continuous Current at 60 Hz

Rated Voltage Factor

Rated Withstand ANSI Test Voltage

Low Freq. kV RMS

Impulse kV PeakIkA RMS

Rated Short-Circuit

Closing and Maximum Sym. Interrupting Capability

KI kA RMS kA RMS / Peak

Latching /

Momentary

Capabilities

Instruction Book IB182917EN September 2018 www.eaton.com

DHP-VR

VR-Ser ies+ Replacement Circuit Breaker

C C

Table 2. Available DHP-VR+ Dimensions

Existing Circuit Breaker Rated Continuous Current at 60 Hz

Circuit Breaker Type

50DHP-VR+ 1200 / 2000 48.75 22.39 7.00 27.40 8.50 16.52

(Amps) A B C D E F

Instruction Book IB182917EN September 2018 www.eaton.com

C C

DHP-VR

VR-Ser ies+ Replacement Circuit Breaker

Table 3. Available DHP-VR+ Dimensions

Existing Circuit Breaker Rated Continuous Current at 60 Hz

Circuit Breaker Type

75/150DHP/DVP-VR

150DHP-VR

750C 1200 / 2000 73.60 31.01 10.00 38.46 10.00 19.75

500/750 1200 / 2000 60.71 31.25 10.00 34.97 10.00 19.75

(Amps) A B C D E F

Instruction Book IB182917EN September 2018 www.eaton.com

DHP-VR

VR-Ser ies+ Replacement Circuit Breaker

SECTION 2: SAFE PRACTICES

VR-Series+ circuit breakers are equipped with high speed, high energy operating mechanisms. They are designed with several builtin interlocks and safety features to provide safe and proper operating sequences.

m DANGER

TO PROTECT THE PERSONNEL ASSOCIATED WITH INSTALLATION, OPERATION, AND MAINTENANCE OF THESE CIRCUIT BREAKERS, 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 these circuit breakers.

•

Read these instructions carefully before attempting any installation, operation or maintenance of these circuit breakers.

•

Always remove the circuit breaker from the enclosure before performing any maintenance. Failure to do so could result in electrical shock leading equipment failure, resulting in death, severe personal injury, equipment damage and/or improper operation.

•

Do not work on a circuit breaker with the secondary test coupler engaged. Failure to disconnect the test coupler could result in an electrical shock leading to death, severe personal injury, equipment damage and/or improper operation.

•

Do not work on a closed circuit breaker or a circuit breaker with closing springs charged. The closing spring should be discharged and the main contacts open before working on the circuit breaker. Failure to do so could result in cutting or crushing injuries.

•

Do not use a circuit breaker by itself as the sole means of isolating a high voltage circuit. Remove the circuit breaker to the ‘Disconnect’ position and follow all lockout and tagging rules of the National Electrical Code and any and all applicable codes, regulations and work rules.

•

Do not leave the circuit breaker in an intermediate position in the circuit breaker compartment. Always have the circuit breaker either in the ‘Test’ or ‘Connect’ position. Failure to do so could result in a flash over causing the equipment to fail, resulting in death, severe personal injury, equipment damage and/or improper operation.

•

Always remove the maintenance tool from the circuit breaker after charging the closing springs.

•

Circuit breakers are equipped with safety interlocks. Do not defeat them. This may result in equipment failure, resulting in death, severe personal injury, equipment damage and/or improper operation.

Instruction Book IB182917EN September 2018 www.eaton.com

DHP-VR

VR-Ser ies+ Replacement Circuit Breaker

SECTION 3: RECEIVING, HANDLING, AND STORAGE

VR-Series+ circuit breakers 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. Accessories such as the maintenance tool, code plate, (if applicable) etc. are shipped with the circuit breaker.

3.1 RECEIVING

Until the circuit breaker is ready to be delivered to the switchgear site for installation, DO NOT remove it from the shipping crate. If the circuit breaker 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 circuit breaker for any signs of shipping damage such as broken, missing or loose hardware, damaged or deformed insulation and other components. If damaged or loss is detected, file claims immediately with the carrier and notify an Eaton representative.

Figure 3.1.a. Maintenance Tool

Figure 3.1.b. Rotary Racking Handle

Figure 3.1.c. Turning Dolly

Tools and Accessories

Maintenance Tool (Style# 94C9506G01): This tool is used to manually charge the closing springs. One maintenance tool is provided with each vacuum replacement circuit breaker.

Racking Handle (Style# 509A931G01): Optional racking handle used to drive the racking mechanism which moves the circuit breaker into and out of the circuit breaker compartment. The OEM racking handle will interface with the VR-Series breaker racking mechanism and is therefore not provided as part of the vacuum replacement circuit breaker.

Lifting Strap (Style# 94B1194G01): Optional item recommended for lifting the DHP-VR

Turning Dolly (Style# 94A9502G02): Optional item used to help maneuver circuit breaker when out of the circuit breaker compartment.

circuit breaker.

replacement circuit

Instruction Book IB182917EN September 2018 www.eaton.com

DHP-VR

VR-Ser ies+ Replacement Circuit Breaker

3.2 HANDLING

m WARNING

DO NOT USE ANY LIFTING DEVICE AS A PLATFORM FOR PERFORMING MAINTENANCE, REPAIR OR ADJUSTMENT OF THE CIRCUIT BREAKER OR FOR OPENING, CLOSING THE CONTACTS OR CHARGING THE SPRINGS. THE CIRCUIT BREAKER MAY SLIP OR FALL CAUSING SEVERE PERSONAL INJURY. ALWAYS PERFORM MAINTENANCE, REPAIR AND ADJUSTMENTS ON A WORKBENCH CAPABLE OF SUPPORTING THE CIRCUIT BREAKER TYPE.

VR-Series handled either by use of an overhead lifting device or by a fork lift truck. If containers must be skidded for any distance, it is preferable to use roller conveyors or individual pipe rollers.

Once a circuit breaker 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 the circuit breaker is ready for installation, a lifting harness in conjunction with an overhead lift or portable floor lift can be used to move the circuit breaker. If the circuit breaker is to be lifted, position the lifting device over the circuit breaker and insert the lifting harness hooks into the circuit breaker side lifting points and secure (lifting straps should have at least a 1000lbs lift capacity). Be sure the hooks are firmly attached before lifting the circuit breaker. Stand a safe distance away from the circuit breaker while lifting and moving.

Figure 3.2. Lifting the DHP-VR

circuit breaker shipping containers are designed to be

3.3 STORAGE

If the circuit breaker is to be placed in storage, maximum protection can be obtained by keeping it in the original shipping crate. Confirm that the circuit breaker is free from shipping damage and is in satisfactory operating condition before placing it in to storage.

The circuit breaker is shipped with its contacts open and closing springs discharged. The indicators on the front cover should confirm this. Insert the end of the maintenance tool into the manual charge socket opening and charge the closing springs by moving the handle up and down the full range of motion. When charging is complete the ratchet will no longer advance and the spring charged / discharged indicator displays ‘Charged’. (Figure Set 3.3). Remove the maintenance tool. Push the “manual close” operator. The circuit breaker will close as shown by the circuit breaker contacts ‘Closed’ indicator. Push the “manual trip” operator. The circuit breaker will trip as shown by the circuit breaker contacts ‘Open’ indicator. After completing this initial check, leave the closing springs ‘Discharged’ and circuit breaker contacts ‘Open’.

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. Containers 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 circulation 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

Table 4. Approximate Weight by Type

Type Amperes LBs

50DHP-VR

75/150DHP-VR

1200 475

2000 490

1200 535

2000 595

Instruction Book IB182917EN September 2018 www.eaton.com

Figure 3.3.a. Front External View of DHP-VR+ (50DHP-VR+ 250 1200A Shown)

DHP-VR

VR-Ser ies+ Replacement Circuit Breaker

8 9

12 13

Front External View

1 Operations Counter 6 Secondary Disconnect Contact Operating Rod 11 Racking Shaft

2 Spring Charged / Discharged Indicator 7 Front Cover 12 Turning Dolly Bracket

3 Circuit Breaker Contact Status Indicator 8 Push To Open Operator 13 Rail Latch

4 Secondary Disconnect Contact Engaging Handle 9 Push To Close Operator

5 Code Plate 10 Manual Charge Socket

Instruction Book IB182917EN September 2018 www.eaton.com

DHP-VR

VR-Ser ies+ Replacement Circuit Breaker

Figure 3.3.b. Rear External View of DHP-VR+ (50DHP-VR+ 250 1200A Shown)

5 6

Rear External View

1 Lifting Point 4 Primary Disconnect Contact 7 Secondary Disconnect Contact Block

2 Vacuum Interrupter 5 Snubber Bolts 8 Ground Contact

3 MOC Switch Operating Mechanism 6 Racking Nut Housing 9 Guide Channel

Instruction Book IB182917EN September 2018 www.eaton.com

Figure 3.3.c. Front External View of DHP-VR+ (150DHP-VR+ 500 1200A Shown)

DHP-VR

VR-Ser ies+ Replacement Circuit Breaker

2 3

Front External View

1 Front Cover 5 Secondary Disconnect Contact Operating Rod 9 Spring Charged / Discharged Indicator

2 Racking Shaft 6 Turning Dolly Bracket 10 Operations Counter

3 Push to Open Operator 7 Circuit Breaker Contact Status Indicator

4 Push to Close Operator 8 Manual Charge Socket

7 8

Instruction Book IB182917EN September 2018 www.eaton.com

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Eaton DHP VR + Series Instruction Book

Specifications and Main Features

Frequently Asked Questions

User Manual