Toshiba HV6FS-MLD instruction manual Criteria, Voltage

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MAINTENANCE

CRITERIA:

1.If a current flow above 5 milliamperes is observed or if breakdown occurs, one or more of the interrupters has insufficient vacuum and must be replaced.

Exception: If the current exceeds 5 milliamperes the first time the voltage is brought up, reduce the voltage to zero and increase it again. It may be necessary to repeat this procedure a few times.

2.If the breaker fails to meet criteria 1, then repeat the test on each pole separately to identify the damaged interrupter or interrupters.

3.If the voltage can be held for 1 minute and the current flow does not exceed 5 milliamperes, the interrupter has a sufficient vacuum level.

After the test is complete, discharge any residual static charge from the primary terminals of the circuit breaker.

If a vacuum checker or AC hi-pot tester is not available, a DC hi potential test may be conducted. If a DC test is conducted, the test voltage must be increased to 31kV DC. The test duration for DC tests and the criteria for acceptance remain the same as for AC tests.

22kV AC

1 minute

 

(31kV DC)

 

Voltage

 

Zero

 

15 sec

15 sec

 

Time

Fig. 34 Application of Test Voltage for Vacuum Check

WARNING

Do not use DC hi-pot testers which employ unfiltered half-wave rectifiers. The peak voltages produced by these testers may exceed the recommended value of 31kV. This can result in the production of harmful X- rays and may invalidate the test results.

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 Read Safety Signs SafetyImportant Messages Qualified Operators only Safety CodesQualified person must Safety Table of Contents Warranty and Limitation of Liability SpecificationsStorage Introduction General Description Components LegendSafety Devices Interlock Release LeverIndicators and Controls Fig Indicators and ControlsReceiving and Unpacking Acceptance InspectionRECEIVING, Inspection and Handling Handling and MovingInstallation Rating VerificationInstallation Main Circuit Cable ConnectionsGround Connections Location of Ground TerminalControl Circuit Connections Control Circuit PlugPlacing the Circuit Breaker Cell Apply B9 Grease to Stab FingersEquipment and possible Placing the Circuit Breaker in the Cell cont’dTo avoid damage to Holding pin unlessElectrical shock hazard GeneralElectrical Checks Do not touch energizedOperation To Move the Circuit Breaker to the Connected PositionTo Move the Circuit Breaker to the Disconnected Position Disconnect Control Circuit PlugManual Operation PRE-ENERGIZATION CheckManual Closing Electrical Operation Manual OpeningUndervoltage Trip Electrical Operation Flow Chart Maintenance Symbol DescriptionServicing Equipment Maintenance ProgramMaintenance Record Only qualified personnel should attemptRecommended Inspection and Maintenance Types Tightening TorquesCheck Points for Periodic Inspection Check Points for Inspection cont’d Vacuum Check PrecautionsTest Procedure Test EquipmentCriteria VoltageDisposal DisposalStorage StorageInspection During Storage 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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