Toshiba HV6FS-MLD instruction manual General Description, Components Legend

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GENERAL DESCRIPTION

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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 The H6A-HLS cell allows the circuit breaker to be withdrawn for service without requiring manual disconnection of line, load and control wiring.

The circuit breaker is a motor-operated type. The motor is used to charge the closing springs and to close the breaker upon command. The circuit breaker can be tripped electrically.

Arc interruption is accomplished inside sealed vacuum interrupters mounted on track-resistant insulators. Vacuum interrupters use low-surge contact materials that exhibit low current chopping levels reducing switching overvoltages.

Fig. 1 and Fig. 2 illustrate and identify the major components of the circuit breaker and cell.

COMPONENTS LEGEND:

Circuit Breaker (Fig. 1):

1)Manual charging handle

2)Manual trip lever

3)On-Off indicator

4)Spring charge indicator

5)Operations counter

6)Secondary control circuit plug

7)Interlock release lever

8)Primary stab fingers

9)Manual close lever (Not shown in Figure)

Cell (Fig. 2):

1)Breaker guide rails

2)Main terminal shutter

3)Breaker holding pin

Fig. 1 Type HV6FS-MLD Circuit Breaker

Fig. 2 Type H6A-HLS Circuit Breaker Cell

CTi Automation - Phone: 800.894.0412 - Fax: 208.368.0415 - Web: www.ctiautomation.net - Email: info@ctiautomation.net

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Contents Installation Operation Maintenance Page Toshiba International Corporation Page Important Messages SafetyRead Safety Signs Qualified person must Safety CodesQualified Operators only Safety Table of Contents Storage SpecificationsWarranty and Limitation of Liability Introduction Components Legend General DescriptionInterlock Release Lever Safety DevicesIndicators and Controls Indicators and Controls FigAcceptance Inspection Receiving and UnpackingHandling and Moving RECEIVING, Inspection and HandlingRating Verification InstallationMain Circuit Cable Connections InstallationLocation of Ground Terminal Ground ConnectionsControl Circuit Plug Control Circuit ConnectionsApply B9 Grease to Stab Fingers Placing the Circuit Breaker CellHolding pin unless Placing the Circuit Breaker in the Cell cont’dTo avoid damage to Equipment and possibleDo not touch energized GeneralElectrical Checks Electrical shock hazardTo Move the Circuit Breaker to the Connected Position OperationDisconnect Control Circuit Plug To Move the Circuit Breaker to the Disconnected PositionManual Closing PRE-ENERGIZATION CheckManual Operation Undervoltage Trip Manual OpeningElectrical Operation Electrical Operation Flow Chart Symbol Description MaintenanceOnly qualified personnel should attempt Maintenance ProgramMaintenance Record Servicing EquipmentTightening Torques Recommended Inspection and Maintenance TypesCheck Points for Periodic Inspection Check Points for Inspection cont’d Test Equipment PrecautionsTest Procedure Vacuum CheckVoltage CriteriaDisposal DisposalInspection During Storage StorageStorage Specifications 34 Warranty and Limitation of Liability

HV6FS-MLD specifications

The Toshiba HV6FS-MLD is a high-performance semiconductor designed for various applications such as inverters, power supplies, and automotive systems. This device is particularly noted for its efficiency and reliability in managing high voltage levels, making it an essential component in modern electronic systems.

One of the standout features of the HV6FS-MLD is its superior power handling capacity. Designed to accommodate high voltage operations, this device ensures minimal energy loss during the conversion and regulation processes. The incorporation of advanced materials contributes to its ability to withstand high temperatures without compromising performance, making it suitable for harsh environments.

Another key technology integrated into the HV6FS-MLD is Toshiba’s Isolated Gate Drive technology. This technology enhances the safety and stability of the device by preventing unwanted current flow, which is particularly crucial in high-voltage applications. The isolated gate drive also allows for better control and reliability when interfacing with different circuit topologies.

The HV6FS-MLD is characterized by its compact design, which enables it to fit into space-constrained environments without sacrificing power capabilities. This compactness does not impair its performance; rather, it ensures that devices are not only efficient but also adaptable to various designs. Furthermore, the device is equipped with integrated protection features, including over-voltage protection and thermal shutdown mechanisms, which safeguard both the HV6FS-MLD itself and the larger system in which it operates.

Moreover, the HV6FS-MLD supports a wide operating temperature range, making it versatile for applications ranging from consumer electronics to industrial systems. This adaptability is crucial as manufacturers increasingly demand components that can perform reliably across varying conditions.

Toshiba's commitment to quality and innovation is reflected in the HV6FS-MLD’s robust performance and longevity. The component’s reliability is further enhanced by rigorous testing protocols that ensure it meets stringent industry standards. As electronic systems continue to evolve, the HV6FS-MLD stands out as a dependable solution for powering the next generation of devices.

In conclusion, the Toshiba HV6FS-MLD is an advanced semiconductor solution that embodies efficiency, reliability, and versatility, making it an invaluable asset in the design and implementation of modern electronic systems.
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