#Japan #Tokyo #insulation materials #JFE Tech Research #EV Insulation

JFE Tech Research Launches Life Testing Services

JFE Tech Research, based in Chiyoda, Tokyo, has recently unveiled its cutting-edge service aimed at assessing the durability of insulating materials and components used in electric vehicles (EVs) and industrial machinery. Utilizing pulse wave voltage that simulates the switching operation of high-performance inverters, this novel service called Voltage-time testing (V-t testing) is set to make significant contributions to the insulation technology development landscape.

Background and Challenges

In recent years, there has been a notable push towards improving the performance of inverter-driven systems within the EV and industrial machinery sectors. This shift has led to an increased demand for insulation materials, such as those found in motor windings, which must now withstand higher pulse voltage performances than ever before. The sharp surge voltages generated during inverter switching operations can cause insulation degradation that traditional sinusoidal-based voltage assessments fail to predict. Consequently, there has been a strong demand from the industry for lifetime predictions that faithfully replicate the real driving environment through V-t testing.

Addressing Industry Needs

To address this escalating need, JFE Tech Research has invested in the latest high-voltage pulsed power supply for V-t testing and various environmental testing facilities. This positions the company as a premier provider of certified evaluation services in Japan, boasting unmatched environmental adaptability.

Service Features

1. Accurate Replication of Inverter Drive Waveforms

• - High-precision pulse waveforms with a rise time of less than 150 ns.
• - Alternating square waves applied continuously in both positive and negative forms.
• - Precision control of surge voltage and rise speeds to replicate real operating conditions closely.
• - The ability to evaluate insulation failure time accurately up to catastrophic breakdown.

2. Wide Range of V-t Testing Environments

• - Test voltage range: 0 to ±5 kV.
• - Repetition frequency: 0.1 to 30 kHz.
• - Minimum pulse width: 300 ns.
• - Unique environmental testing capabilities:

- Temperature extremes from -70 to 200 °C.
- Humidity control ranging from 20 to 98% RH.
- Low-pressure environments starting at 300 Pa.
- Oil medium tests to simulate various usage conditions.

The array of capabilities ensures thorough insulation lifetime evaluations under virtually any operating environment imaginable.

3. High Precision in Predicting Material Lifetimes

From the results obtained in V-t testing, JFE Tech Research is able to derive a mathematical relationship between the applied voltage and time to insulation failure. This process allows for highly accurate predictions of lifespan under practical usage conditions.

Additional Technological Support

JFE Tech Research provides a comprehensive suite of services beyond V-t testing, including partial discharge evaluations and materials analysis. This multidimensional technical support is designed to foster the rapid advancement of insulation material development in mobility, industrial machinery, power generation, and power electronics sectors. The company is committed to continuously expanding its measurement technology as a means to shorten product development cycles and enhance quality for its clients.

For more technical information, please visit:

• - Voltage-time Testing
• - Partial Discharge Measurements in High-Temperature Environments
• - Evaluation of Resins and Composite Materials

About JFE Tech Research

Company Name: JFE Tech Research, Inc.
Head Office: 4th floor, Otemachi Building, 1-6 Otemachi, Chiyoda-ku, Tokyo
CEO: Kazuhira Hanazawa
Business Activities: Tailored testing and experimental planning, measurement, data analysis, evaluation, consulting, and measuring device development.
Website: JFE Tech Research

For press inquiries, please contact the sales division:
Email: [email protected]
URL: Contact Us

Conclusion

This newly launched service by JFE Tech Research represents a significant leap forward in the evaluation of insulation materials used in advanced technological applications, ensuring that manufacturers and developers can confidently innovate in the rapidly evolving fields of electric vehicles and industrial machinery.