Toshiba HV6AS instruction manual Check Points for Inspection cont’d

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MAINTENANCE

Table 2. Check Points for Inspection (cont’d)

Check Point

Check Item

Check Method

Criteria

What to do

 

 

 

 

 

Auxiliary

Terminals loose

Visual

Make sure terminals are

Repair if

Switch

or disconnected

inspection.

not loose or disconnected.

disconnected.

 

 

Tighten using a

 

Tighten if loose.

 

 

screwdriver.

 

See Table 1 for

 

 

 

 

tightening torques.

 

 

 

 

 

 

Case/contacts

Visual

Make sure there is no

Replace if damaged

 

 

inspection.

damage or warping.

or warped.

 

 

 

 

 

Control

Smooth

Energize the

Breaker (motor-operated

If the circuit fails to

Circuits

movement of

control circuit.

type) should charge

operate, check the

 

motor charging

 

quickly and smoothly.

cause and repair.

 

mechanism

 

 

 

 

 

 

 

 

 

Terminals loose

Visual

Make sure terminals are

Repair if

 

or disconnected

inspection.

not loose or disconnected.

disconnected.

 

 

Tighten using a

 

Tighten if loose.

 

 

screwdriver.

 

See Table 1 for

 

 

 

 

tightening torques.

 

 

 

 

 

Insulation

Meaure main

Megger test at

Resistance should be

If the insulation

Resistance

circuit to ground

1000V.

500MΩ or greater.

resistance is low,

Measure-

 

 

 

wipe off the vacuum

ment

 

 

 

interrupter and other

 

 

 

 

insulation surfaces

 

 

 

 

 

Meaure

Megger test at

Resistance should be

with a clean dry

 

between main

1000V.

100MΩ or greater.

cloth and then

 

circuit terminals

 

 

repeat the test.

 

 

 

 

 

 

Meaure control

Megger test at

Resistance should be

 

 

circuits to

500V.

2MΩ or greater.

 

 

ground

 

 

 

 

 

 

 

 

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Contents Installation Operation Maintenance Page For the Installation, Operation and Maintenance Page Important Messages SafetyRead Safety Signs Qualified person must Safety CodesQualified Operators only Safety Table of Contents Inspection During Storage Introduction General Description Components LegendSafety Devices General DescriptionRECEIVING, Inspection and Handling Receiving and UnpackingAcceptance Inspection Never lay the circuitRECEIVING, Inspection and Handling Handling and MovingInstallation Rating VerificationInstallation Mounting the Circuit Breaker to a PanelPanel Cutout Dimensions Mounting Directly to a Shelf Mounting Breaker to Flat Plate or AnglesMain Circuit Cable Connections Pass Cable Through Insulating CylinderGround Connections Proper groundingAdditional Auxiliary Switch Optional Control Circuit ConnectionsGeneral Electrical ChecksOn red OperationManual Operation Symbol Description Electrical OperationElectrical Operation Flow Chart for MU and ML Type Breakers 125 VDC Control Circuit Schematic for U Type Circuit Breaker PR3 REC LS2 LS1 Undervoltage Trip Removing Plug From UV Trip DeviceMaintenance Maintenance ProgramMaintenance Record Servicing EquipmentRecommended Inspection and Maintenance Types Tightening TorquesCheck Points for Periodic Inspection Check Points for Inspection cont’d Vacuum Check Test EquipmentCriteria VoltageDisposal DisposalInspection During Storage StorageStorage Specifications 34 Warranty and Limitation of Liability Toshiba

HV6AS specifications

The Toshiba HV6AS is a sophisticated high-voltage IGBT (Insulated Gate Bipolar Transistor) module, primarily designed for demanding applications in industrial and energy sectors. This module stands out due to its superior performance characteristics, which allow it to handle high voltages while delivering optimal efficiency and reliability.

One of the key features of the HV6AS is its high voltage rating, typically around 650V, making it suitable for various applications including motor drives, renewable energy systems, and UPS (Uninterruptible Power Supply) systems. This voltage capacity enables the module to effectively control large power loads, ensuring excellent performance in high-demand environments.

The HV6AS adopts cutting-edge technologies that improve its operational efficiency. The design incorporates advanced thermal management features, which help in enhancing its reliability and lifespan. Integrated with a robust heat sink, the module efficiently dissipates heat generated during operation. This is crucial as increased temperatures can lead to reduced performance and potential failure.

Additionally, the HV6AS utilizes a double-sided cooling structure, which allows for superior thermal conductivity and enables the module to perform optimally in high-temperature conditions. This aspect is particularly important for applications in renewable energy, such as solar inverters, where efficiency and durability are key.

Another notable characteristic of the HV6AS is its fast switching capability. The IGBT technology allows for rapid switching between on/off states. This feature is essential in applications such as pulse-width modulation (PWM), contributing to improved power conversion efficiency. The high switching frequency capability means that systems can operate more efficiently, resulting in lower energy losses.

Toshiba’s HV6AS also focuses on enhancing productivity through simplified circuit design. Its compact form factor means that it can be easily integrated into existing systems, saving space and simplifying installation processes. The module’s compatibility with existing drive technologies allows for seamless upgrades to newer systems without significant changes to the overall architecture.

In summary, the Toshiba HV6AS is a highly versatile IGBT module characterized by its high voltage capability, advanced thermal management, fast switching speed, and compact design. These factors make it an excellent choice for a wide array of high-performance applications in various industries, driving innovation towards more efficient and sustainable power solutions. Whether in industrial automation or renewable energy, the HV6AS sets a benchmark for reliability and effectiveness in power electronics.
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