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Document: GF07Z304 Rev. 2
INSTRUCTION MANUAL
INSTALLATION - OPERATION - MAINTENANCE
HV6FS-MLD Vacuum Circuit Breakers – Drawout Type
4.8 & 7.2kV Voltage Classes
(Fast Closing w/UV Release)
Issued: 10/2006
CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: info@ctiautomation.net
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CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: info@ctiautomation.net
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INSTRUCTION MANUAL For the Installation, Operation and Maintenance of HV6FS-MLD Vacuum Circuit Breakers – Drawout Type 4.8 & 7.2kV Voltage Classes (Fast Closing w/UV Release) Never attempt to install, operate, maintain or dispose of this equipment until WARNING 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 Servic
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CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: info@ctiautomation.net
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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 that will result in death, serious injury, and severe DANGER property damage if you do not follow instructions. Means that you might be seriously injured or killed if you do not follow WARNING instructions. Severe property
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Page 2 SAFETY 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 ta
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SAFETY Page 3 HAZARDOUS VOLTAGE will cause severe injury, death, fire, explosion and DANGER 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 CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web
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Page 4 TABLE OF CONTENTS SAFETY....................................................................................................................................................1 INTRODUCTION ......................................................................................................................................6 GENERAL DESCRIPTION.......................................................................................................................7
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TABLE OF CONTENTS Page 5 STORAGE ..............................................................................................................................................34 Storage........................................................................................................................................34 Inspection During Storage...........................................................................................................34 SPECIFICATIONS.
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Page 6 INTRODUCTION It is the intent of this manual to provide a guide for safely installing, operating and maintaining Toshiba vacuum circuit breakers. 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
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GENERAL DESCRIPTION Page 7 The Toshiba HV6FS-MLD vacuum circuit breaker described in this manual is suitable for use on systems of 4.8kV and 7.2kV voltage classes that require interrupting ratings of 16kA and 14kA respectively and a continuous current rating of 630A. The circuit breaker is intended for use in limited applications requiring small physical size and low maintenance. This breaker is designed for drawout operation using the H6A-HLS cell. The H6A-HLS ce
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Page 8 GENERAL DESCRIPTION SAFETY DEVICES Safety interlocks and guards are provided as an integral part of the equipment design. These devices are provided for safety to the operator. Never defeat, modify or DANGER bypass any safety devices, interlocks or operating mechanism. This would make the equipment unsafe. Fire, explosion, severe injury, death and property damage could occur. Do not operate this WARNING equipment unless all covers and panels
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GENERAL DESCRIPTION Page 9 INDICATORS AND CONTROLS (Fig. 4) The following front panel indicators and controls are provided: 1) On-Off Indicator - Indicates if the circuit 1 breaker is OFF (Green) or ON (Red). When the indicator reads OFF, the main contacts of the circuit breaker are open. When the 3 indication is ON, the main contacts are closed. 2) Closing Spring Status Indicator - Indicates if 4 the closing springs are CHARGED (Yellow) or DISCHARGED
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Page 10 RECEIVING, INSPECTION AND HANDLING RECEIVING AND UNPACKING The circuit breaker units are subjected to factory production testing prior to being packed and shipped. ACCEPTANCE INSPECTION Confirm that the circuit breaker and cell units are complete, correct as specified and undamaged from shipment and handling. Upon receipt of the equipment, do the following: 1) Make an immediate inspection for damage Fig. 5 Charging Handle that might have occurred during
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RECEIVING, INSPECTION AND HANDLING Page 11 HANDLING AND MOVING When handling and moving the circuit breaker and cell, the techniques shown in this section may be used. Care and caution should be used when handling the circuit breaker and cell units to avoid damage to the equipment and personal injury. Always keep the equipment in a generally upright position. Refer to Fig. 8 and Fig. 9 for the correct methods of lifting and moving the circuit breaker and cell.
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Page 12 INSTALLATION Do not install this at the installation location, a space heater should WARNING equipment in areas where be installed inside the circuit breaker enclosure. unusual service conditions NOTE: Temperature, altitude or other exist. Using this equipment conditions outside of the usual limits in other than usual service may require derating or other special conditions can result in equipment. Contact your nearest equipment failure. Toshiba representat
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INSTALLATION Page 13 MOUNTING THE CIRCUIT BREAKER CELL The circuit breaker cell is designed to mount to the floor or shelf of the installation compartment. Use two wrenches to torque CAUTION The floor or shelf to which the cell is mounted the connection to prevent should be flat and level within ± 0.5 mm ( ± 0.02 applying excessive force to in.). If there are any noticeable gaps between the terminal that can the cell base and the mounting surface, fill them damage
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Page 14 INSTALLATION GROUND CONNECTIONS The circuit breaker cell must be grounded in accordance with the requirements of the National Electrical Code, Article 250 or applicable local standards. WARNING Proper grounding connections must be made to the circuit breaker cell before incoming power is applied. It is very important that the circuit breaker and its enclosure be adequately grounded to protect the operator from injury in the event of short circuit
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INSTALLATION Page 15 CONTROL CIRCUIT CONNECTIONS Control circuit wiring is connected to the circuit breaker by means of a control plug (green color) located on the breaker front panel (Fig. 15). A control wire harness (Fig. 16) is furnished with the circuit breaker for making this connection. Using the supplied harness, connect control wiring in accordance with the appropriate wiring diagram shown in Fig. 31 in the OPERATION section of this manual.
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Page 16 INSTALLATION PLACING THE CIRCUIT BREAKER IN THE CELL Hazard of fire, explosion, DANGER severe injury, death and property damage. Circuit breaker must be OFF before installation or removal from cell. Circuit breaker contains WARNING powerful springs. Discharge springs completely before installation or servicing. Before attempting to install the circuit breaker in the cell, verify that the continuous current, voltage and interrupting ratin
