Page 18

PRE-ENERGIZATION CHECK

GENERAL

BEFORE ENERGIZING THE CIRCUIT BREAKER for the first time, follow the procedure below to verify that the equipment is properly installed and functional.

ELECTRICAL CHECKS

Electrical shock hazard. WARNING Do not touch energized

components during a test using auxiliary power.

DANGER

Hazardous Voltage. Turn off and lock out all primary and control circuit power sources prior to performing this pre-energization check.

An electrical insulation resistance test should be performed to verify that the circuit breaker and associated field wiring are free from short circuits and grounds. Refer to the MAINTENANCE Section of this manual for additional information.

WARNING

WARNING

Do not operate this equipment until a complete safety inspection has been made.

Do not energize damaged equipment that has not been repaired or verified.

WARNING

Hazardous voltages are present during dielectric testing which can result in serious injury or death. High potential tests should be performed only by qualified personnel.

WARNING

WARNING

Do not remove, cover or destroy any safety signs.

Do not operate this equipment until all panels and covers have been installed.

The circuit breaker must be set to the OFF position before energizing incoming power.

All blocks or other temporary braces used for shipment must be removed.

Before closing the enclosure, all metal chips, scrap wire and other debris left over from installation must be cleaned out.

Cover all unused openings. Install all panels, guards and covers.

A supply of spare parts should be established.

Instruction manuals and diagrams should be collected and filed.

Page 21 Page 23
Page 22
Image 22
Toshiba HV6AS instruction manual General, Electrical Checks
Page 21 Page 23

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.
Top Page Image Contents