Toshiba HV6AS instruction manual Recommended Inspection and Maintenance Types, Tightening Torques

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MAINTENANCE

RECOMMENDED INSPECTION AND MAINTENANCE TYPES

NOTE: Refer to the SAFETY section of this manual for important information.

A.Acceptance Inspection

This inspection confirms that the circuit breaker unit is complete, correct as specified, and undamaged from shipment. The procedure for this inspection is outlined in the

RECEIVING, INSPECTION AND HANDLING section of this manual.

B.Patrol Inspection

Inspection is made of the condition of the circuit breaker while it is energized. Check that no unusual sounds or smells exist externally.

Inspection Frequency: Once every 6 months

C.Periodic Inspection

Inspection is performed wth the circuit breaker de-energized. The lubrication of sliding and rotating parts is checked and the mechanism is lubricated if needed.

Inspection Frequency: Once every 1-3 years or every 3000 operations (normal). Once every 6 years (detailed).

Refer to Table 2 for the schedule of Periodic Inspections.

D.Unscheduled Inspection

Inspections are implemented as required. Inspection Frequency: As needed

NOTE: The inspection frequency and points to be inspected may vary from the above recommendations depending on the status of use, frequency of switching, amount of current interrupted and other factors.

Screw

 

Nominal

Tightening Torque

Dia.

 

M4

15-20 kgf-cm

 

13-17 in-lb

M5

30-40 kgf-cm ()

 

26-34 in-lb

M6

50-65 kgf-cm ()

 

43-56 in-lb

M8

120-150 kgf-cm ()

 

9-11 ft-lb

M10

250-315 kgf-cm ()

 

18-23 ft-lb

M12

450-565 kgf-cm ()

 

32-41 ft-lb

Table 1 Tightening Torques

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Contents Installation Operation Maintenance Page For the Installation, Operation and Maintenance Page Safety Read Safety SignsImportant Messages Safety Codes Qualified Operators onlyQualified person must Safety Table of Contents Inspection During Storage Introduction General Description Components LegendSafety Devices General DescriptionAcceptance Inspection RECEIVING, Inspection and HandlingReceiving and Unpacking 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 ChecksOperation Manual OperationOn red 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 Record MaintenanceMaintenance Program Servicing EquipmentRecommended Inspection and Maintenance Types Tightening TorquesCheck Points for Periodic Inspection Check Points for Inspection cont’d Vacuum Check Test EquipmentCriteria VoltageDisposal DisposalStorage StorageInspection During Storage 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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