TEST PROCEDURE:

1.The circuit breaker should be disconnected from the main circuit and be in the OFF position.

2.Connect all the line side primary terminals together and to the output of the vacuum checker or AC hi-pot machine. Connect all the load side primary terminals together and to the ground terminal of the vacuum checker or AC hi-pot machine.

3.Increase the voltage from zero to 22kV AC at a rate of approximately 2kV per second. Hold the voltage at this value for 1 minute and observe the current drawn by the interrupter.

Note: If the ammeter fluctuates violently as the voltage increases to AC22 kV, repeat the voltage increase procedure two or three times. If the current still rises when the voltage is increased, the vacuum level may be insufficient; replace the vacuum interrupter.

4. Decrease the voltage back to zero.

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.

22kV AC (31kV DC)

Voltage

Zero

1 minute

2. If the breaker fails to meet criteria 1, then repeat the

test on each pole separately to identify the damaged

interrupter or interrupters.

15 sec

15 sec

Time

Figure 34 Application of Test Voltage for Vacuum Check

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.

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.

- 29 -

Page 34 Page 36
Page 35
Image 35
Toshiba HV6CS-MU operation manual Test Procedure
Page 34 Page 36

HV6CS-MU specifications

The Toshiba HV6CS-MU is a high-performance semiconductor device, primarily designed for automotive applications, particularly in battery management systems and electric vehicles. This versatile chip is part of Toshiba's HV series, known for its reliability, robustness, and efficiency in handling high voltage operations.

One of the standout features of the HV6CS-MU is its ability to operate at high voltages, making it suitable for demanding environments where traditional components may falter. It supports voltages up to 600V, which is essential for managing the power requirements of electric and hybrid vehicles. This high voltage capability allows for efficient energy management in various systems, from power inverters to energy storage units.

Additionally, the HV6CS-MU leverages Toshiba's proprietary technologies, including advanced gate drive and protection circuits. These technologies ensure that the device operates safely and reliably under various conditions. The built-in protection features help guard against over-voltage, over-current, and thermal problems, which are critical for maintaining system integrity and longevity.

Another compelling aspect of the HV6CS-MU is its efficiency. With low on-resistance and fast switching times, it minimizes power loss during operation. This efficiency translates not only to improved performance but also to extended battery life in electric vehicles. The ability to conserve energy is paramount in today's automotive industry, where sustainability and energy efficiency are increasingly important.

Furthermore, the HV6CS-MU is designed with a robust thermal management system. It can operate at elevated temperatures without compromising performance, making it suitable for various automotive environments. This feature is particularly vital in electric vehicles, where components are often subjected to significant heat during operation.

In terms of packaging, the HV6CS-MU comes in a compact, integrated format, allowing for ease of installation within various electronic assemblies. Its small footprint makes it ideal for space-constrained applications, providing engineers with more design flexibility.

In summary, the Toshiba HV6CS-MU is a state-of-the-art semiconductor device that embodies advanced technology, high efficiency, and robust performance characteristics. Its high voltage operation, integrated protection features, and efficient energy management make it a pivotal component in modern automotive designs, particularly in the realm of electric and hybrid vehicles. As the industry continues to evolve towards electrification, devices like the HV6CS-MU will play an essential role in shaping the future of automotive technology.
Top Page Image Contents