Toshiba CV-1GAU User manual

Document: VF010H10
TOSHIBA
INSTRUCTION MANUAL
INSTALLATION - OPERATION - MAINTENANCE
CV-1GAU and CV-1HAU Vacuum Contactors
1.5kV - 2.5kV Voltage Class
APPLICABLE MODEL NUMBERS
CV-1GAU
CV-1GAU-P2
CV-1GAUMIL
CV-1GAU-C
CV-1HAU
CV-1HAU-P2
CV-1HAUMIL
CV-1HAU-C
Issued:9/01
Manufactured in the USA

TOSHIBA
INSTRUCTION MANUAL
For the Installation, Operation and Maintenance of
CV-1GAU Vacuum Contactor, 1.5kV - 2.5kV 160A
CV-1HAU Vacuum Contactor, 1.5kV - 2.5kV 320A
Never attempt to install, operate, maintain or dispose of this equipment until
you have first read and understood all of the relevant product warnings and
user directions that are contained in this Instruction Manual.
To contact Toshiba, address all correspondence to:
Field Service Department
Toshiba International Corporation
13131 West Little York Road
Houston, Texas 77041 USA
or call:
[phone]
[phone]
[phone] (Canada)
Fax:[phone]
Please complete the following information for your records and retain with this manual:
Model: ___________________________________
Serial Number:_____________________________
Date of Installation: _________________________
Inspected by: ______________________________
Reference Number: _________________________
© TOSHIBA INTERNATIONAL CORPORATION, 2001
WARNING

SAFETY Page 1
IMPORTANT MESSAGES
Read this manual and follow its instructions. Signal words such as
DANGER, WARNING and CAUTION will be followed by important safety
information that must be carefully reviewed.
Indicates a situation which will result in death, serious injury, and severe
property damage if you do not follow instructions.
Means that you might be seriously injured or killed if you do not follow
instructions. Severe property damage might also occur.
Means that you might be injured if you do not follow instructions. Equipment
damage might also occur.
NOTE Gives you helpful information
READ SAFETY SIGNS
To avoid injury, you must read and follow all safety signs.
Keep the safety signs visible and in good shape. Never remove or cover any safety
signs.
DANGER
CAUTION
WARNING

SAFETY Page 2
QUALIFIED OPERATORS ONLY
Only qualified persons are to install, operate, or service this equipment according to all
applicable codes and established safety practices.
A qualified person must:
1) Carefully read the entire instruction manual.
2) Be skilled in the installation, construction or operation of the equipment and
aware of the hazards involved.
3) Be trained and authorized to safely energize, de-energize, clear, ground,
lockout and tag circuits in accordance with established safety practices.
4) Be trained and authorized to perform the service, maintenance or repair of
this equipment.
5) Be trained in the proper care and use of protective equipment such as rubber
gloves, hard hat, safety glasses, face shield, flash clothing, etc. in
accordance with established practices.
6) Be trained in rendering first aid.
SAFETY CODES
Toshiba CV-1GAU and CV-1HAU vacuum contactors are designed and built in
accordance with NEMA ICS 3-2, UL 508, CSA 22.2-14 and IEC 60470. Installations
must comply with all applicable state and local codes, adhere to all applicable National
Electric Code (NFPA 70) standards and instructions provided in this manual.

SAFETY Page 3
HAZARDOUS VOLTAGE will cause severe injury, death, fire, explosion and
property damage.
• Turn off and lock out Primary and Control Circuit Power before servicing.
• Keep all panels and covers securely in place.
• Never Defeat, Modify, or Bypass any Safety Interlocks
• Qualified Operators only
DANGER

TABLE OF CONTENTS Page 4
SAFETY ..................................................................................................................................................1
INTRODUCTION .....................................................................................................................................6
GENERAL DESCRIPTION......................................................................................................................7
Components.................................................................................................................................7
- Contactor Components ..............................................................................................................7
Indicators and Controls................................................................................................................. 8
- ON/OFF Indicator.......................................................................................................................8
- Outline Drawing..........................................................................................................................8
RECEIVING, INSPECTION AND HANDLING .........................................................................................9
Receiving and Unpacking.............................................................................................................9
Acceptance Inspection .................................................................................................................9
Handling and Moving....................................................................................................................9
- Location of Wear Gauge ............................................................................................................9
INSTALLATION.......................................................................................................................................10
Ambient Conditions......................................................................................................................10
Rating Verification........................................................................................................................10
- Label Locations
Mounting the Contactor................................................................................................................11
Main Circuit Cable Connections ...................................................................................................11
Control Circuit Connections..........................................................................................................11
- Control Terminals Location.........................................................................................................11
PRE-ENERGIZATION CHECK................................................................................................................12
General........................................................................................................................................ 12
Electrical Checks..........................................................................................................................12
OPERATION ...........................................................................................................................................13
Moving Contactor from Disconnected to Connected Position .......................................................13
Moving Contactor from Connected to Disconnected Position ....................................................... 13
- Configuration of the Drive Unit ...................................................................................................14
MAINTENANCE ......................................................................................................................................15
Maintenance Program..................................................................................................................15
Maintenance Record ....................................................................................................................15
Servicing Equipment ....................................................................................................................15
Inspection and Maintenance Types..............................................................................................16
Table 1 – Tightening Torque ........................................................................................................16
Table 2 – Check Points for Periodic Inspection ............................................................................17
Table 3 – Wear and Replacement Values ...................................................................................19

TABLE OF CONTENTS Page 5
Vacuum Check.............................................................................................................................20
- Toshiba Portable Vacuum Checker............................................................................................20
- Application of Test Voltage for Vacuum Check...........................................................................21
Electrical Service Life................................................................................................................... 22
Mechanical Service Life................................................................................................................22
- Interrupter Wipe Measurement...................................................................................................22
- Auxiliary Overtravel Measurement..............................................................................................22
- Lubrication .................................................................................................................................22
STORAGE AND DISPOSAL ...................................................................................................................23
Storage ........................................................................................................................................ 23
Inspection during Storage............................................................................................................. 23
Disposal
SPECIFICATIONS...................................................................................................................................24
Table 4 – Ratings.........................................................................................................................24
WARRANTY AND LIMITATION OF LIABILITY ......................................................................................26

INTRODUCTION Page 6
It is the intent of this manual to provide a guide for safely installing, operating and maintaining Toshiba
vacuum contactors. This manual consists of a section of general safety instructions and is marked
throughout with warning symbols. Read this manual thoroughly before installation, operation and
maintenance of this equipment.
This manual and all accompanying drawings should be considered a permanent part of the equipment.
They should be readily available for review and reference at all times. This manual is not intended to
cover all details, combinations, or variations of the equipment. Always refer to drawings accompanying
the equipment for additional details.
All safety warnings must be followed to ensure personal safety. General safety instructions are
found on pages 1 through 3. Read and save these instructions for future reference.
Follow all precautions to attain proper equipment performance and longevity.
Dimensions shown in the manual are in English and/or their metric equivalent.
This manual is divided into major sections of interest, as follows:
GENERAL DESCRIPTION – Provides a description of the equipment, information on major
components and how they function, plus rating information.
RECEIVING, INSPECTION AND HANDLING – Describes procedures for receiving, unpacking,
inspecting, and handling the contactors.
INSTALLATION – Provides information on installing the contactor.
PRE-ENERGIZATION CHECK – Provides a checklist for preparing the equipment for energization.
OPERATION – Provides information on operation of the contactor and circuit diagrams.
MAINTENANCE – Lists the basic maintenance procedures for this equipment necessary for safe and
reliable operation.
DISPOSAL – Lists procedures for the safe disposal of the equipment when the service life has expired.
STORAGE – Provides guidelines for storing new equipment for an extended period of time.
SPECIFICATIONS – Covers ratings and other specifications of the contactor.
WARRANTY AND LIMITATION OF LIABILITY – Details Toshiba International Corporation’s standard
warranty terms.

GENERAL DESCRIPTION Page 7
COMPONENTS
The Toshiba CV-1GAU and CV-1HAU vacuum
contactors described in this manual are suitable
for use on systems of 1.5kV, 160A and 1.5kV,
320A respectively.
Arc interruption is accomplished inside sealed
vacuum interrupters mounted on track-resistant
insulators. Vacuum interrupters use low-surge
contact materials, which exhibit low current
chopping levels reducing switching overvoltage.
This manual covers several models of typeforms
of CV-1GAU and CV-1HAU vacuum contactor.
Included are the basic GAU and HAU models
as well as the GAU-P2, HAU-P2, GAUMIL,
HAUMIL, GAU-C and HAU-C.
-P2 models have a fast opening time.
-MIL models are for mechanical interlocking.
-C models have a 480-550Vcontrol voltage.
Figure 1 - Front of Contactor
The information presented in this manual is
common to all models unless otherwise noted.
Refer to the Ratings Tables in the
SPECIFICATION section of this manual for
model details.
Contactor Components:
1. Power Terminals – Input
2. Insulating Frame
3. Vacuum Bottle
4. Contact Wear Checkpoint
5. Power Terminals – Load
6. Mounting Holes (Lower Not Visible)
7. Control Terminals
8. Auxiliary Contacts – Optional (2)
9. Auxiliary Contacts – Standard (2)
10. Typeform Label (Rating Label – Other side)
11. Drive Unit
12. Front Cover
13. ON/OFF Indicator
Figure 2 – Front/Right Side of Contactor
1
2
3
5
4
6
7
8
9
13
12
11
10

GENERAL DESCRIPTION Page 8
INDICATORS AND CONTROLS
The following indicator is provided:
On-Off Indicator - Indicates if the contactor is
OFF (Green) or ON (Red). When the indicator
reads OFF, the main contacts of the contactor
are open. When the indication is ON, the main
contacts are closed. See Figure 3.
Figure 3 - ON/OFF Indicator
Figure 4 – Outline Drawing