電研精機研究所 List of Products and Services

This is a small, low-cost "Noise Cut Transformer" developed with a focus on general-purpose electronic devices for mass production and portable electronic devices. By utilizing a newly developed noise prevention mechanism (which has been patented), it effectively blocks normal mode noise across a wide frequency range that cannot be prevented by conventional isolation transformers or shielded transformers, thereby significantly improving the noise resistance of the connected devices, all at a low cost. Additionally, its wide-band common mode noise blocking capability protects the load devices from surges caused by induced lightning. In addition to standard voltage models, we can also produce units at your desired voltage through made-to-order production, allowing for replacement of the power transformer in the connected devices. Furthermore, it can eliminate the need for other noise prevention components such as power filters.

• Substation equipment

This is a small, low-cost "Noise Cut Transformer" developed with a focus on general-purpose electronic devices for mass production and portable electronic devices. By utilizing a newly developed noise prevention mechanism (which has been patented), it effectively blocks normal mode noise across a wide frequency range that cannot be prevented by standard isolation transformers or shielded transformers, thereby significantly improving the noise resistance of the connected devices, all at a low price. Additionally, its wide-band common mode noise blocking capability protects the load devices from surges caused by induced lightning. In addition to standard voltage models, we can also produce units at your desired voltage through made-to-order production, allowing for replacement of the power transformer in the connected devices. Furthermore, it can eliminate the need for other noise prevention components such as power filters.

• Power distribution and control panels

This is a small, low-cost "Noise Cut Transformer" developed with a focus on general-purpose electronic devices for mass production and portable electronic devices. By utilizing a newly developed noise prevention mechanism (which has been patented), it effectively blocks normal mode noise across a wide frequency range that cannot be prevented by standard isolation transformers or shielded transformers, thereby significantly improving the noise resistance of the connected devices. Additionally, its wideband common mode noise blocking capability protects the load devices from surges caused by induced lightning. In addition to standard voltage models, we can also produce units with custom voltages upon request, allowing for replacement of the power transformer in the connected devices. Furthermore, it can eliminate the need for other noise prevention components such as power filters.

• Substation equipment

This is a small, low-cost "Noise Cut Transformer" developed with a focus on general-purpose electronic devices for mass production and portable electronic devices. By utilizing a newly developed noise prevention mechanism (which has been patented), it effectively blocks normal mode noise across a wide frequency range that cannot be prevented by standard isolation transformers or shielded transformers, thereby significantly improving the noise resistance of the connected devices, all at a low cost. Additionally, its wideband common mode noise blocking capability protects load devices from surges caused by induced lightning. In addition to standard voltage products, we can also produce units with custom voltages upon request, allowing for replacement of the power transformer in connected devices. Furthermore, it can eliminate the need for other noise prevention components such as power filters.

• Internet System

Lightning protection + surge-resistant transformer, impulse withstand voltage 30kV, insulation withstand voltage AC 10kV. This is a "Noise Cut Transformer" that is fully equipped with the specifications and performance of a surge-resistant transformer, achieving excellent cost performance and compactness. It also prevents sharp overvoltages during lightning surges that cannot be protected by lightning arresters. This is a product registered under the old NETIS system.

• Substation equipment

This is a "Noise Cut Transformer" developed to prevent malfunctions and communication disruptions caused by noise associated with the rapidly increasing use of "general-purpose inverters." Of course, it can also be used for other applications. The noise generated by conventional inverters has been difficult to sufficiently mitigate with LC filters and similar devices. This is due to the presence of a significant amount of noise in the frequency range below 100 kHz, where the effectiveness of the filters diminishes, as well as issues such as leakage current when filters are used, and the influence of grounding conditions and the impedance of power and load devices. The NCT-J is a trump card that can solve these problems all at once.

• Substation equipment

The lightning surge that intrudes into the power line and reaches one coil of the lightning protection transformer first attempts to transfer electrostatically (through capacitive coupling) to the other coil. However, if the transformer has a shielding plate, this can be effectively prevented. Following that, a slower electromagnetic transfer (through inductive coupling) occurs, and there has been no lightning protection transformer equipped with a structure to prevent this; they have relied on added capacitors and varistors, which have been insufficient to protect low-resistance information devices and precision electronic equipment. However, a structure like the "Noise Cut Transformer" that prevents high-frequency magnetic flux from the lightning surge from crossing to the secondary side can also prevent this electromagnetic transfer. The NCT-K type takes advantage of this characteristic, featuring high voltage insulation that withstands the impact of lightning surges, excellent shielding with a very low impedance triple structure, and is designed and manufactured to easily divert powerful lightning surges to the ground, almost completely preventing them from escaping to the load side, making it a "Noise Cut Transformer for lightning protection."

• Substation equipment

This is a medium-capacity noise filter transformer that complies with UL standards. It is a model certified under the UL standard for insulation materials "UL1446" and the UL standards for construction "UL5085-1, UL5085-2." This product will be custom-made according to your specifications.

• Substation equipment

It is a slim model.

• Substation equipment

This product has been developed through efforts since 1960, revealing the theoretically most superior design and obtaining patents for its structure and manufacturing methods. It has been made commercially available by improving the manufacturing methods and materials. The core shape and coil arrangement are of an off-axis eccentric twist design, exhibiting outstanding performance from several kHz to GHz. It is primarily used in laboratories, space development, laser-related equipment, precision experimental instruments, and for measuring minute signals.

• Substation equipment

The Noise Isolation AC Automatic Voltage Regulator "Noise Cut AVR" has a long history since our company's founding and boasts high quality and reliability, having received almost no complaints from users. It is a stabilized power supply (line conditioner) that protects electrical and electronic devices from power troubles such as high-frequency noise, harmonics, voltage fluctuations, and instantaneous power outages within 1/4 cycle, while supplying ideal power. Moreover, the longest-serving units have been in operation for over 45 years, showing no signs of aging in their characteristics. We are also open to consultations regarding compliance with standards such as SEMI. ● For more details, please contact us or download related materials.

• Substation equipment

This is an optimal power supply device for EMI measurement, combining a high-efficiency, low-cost inverter-type frequency converter with a noise-cut transformer. It is resistant to external disturbances and provides a stable sine wave power supply free of noise to the test equipment at the required voltage and frequency. It is compact, lightweight, and low-cost, reducing equipment burden, easy to operate, and does not incur high running costs such as electricity bills. *For more details, please contact us or download the catalog.*

• Substation equipment

The Noise-Cutting UPS PI-N type protects electronic devices from the fear of momentary power outages. It perfectly responds to noise and voltage fluctuations, serving as an uninterruptible power supply that safeguards your information assets. For momentary outages, it provides perfect backup with its "complete no-break mechanism." Additionally, by incorporating the renowned "Noise-Cutting Transformer" from Dengen Seiki Research Institute, it can almost completely block line noise up to ultra-high frequencies. Furthermore, it includes a constant voltage and frequency correction feature to stabilize voltage fluctuations, waveform distortion, and frequency variations, supplying a clean and stable sine wave. The Noise-Cutting UPS addresses all power supply issues related to "momentary outages, noise, and voltage fluctuations." 【Features】 ○ Adopts a complete no-break mechanism ○ Equipped with a noise-cutting transformer ○ High-performance battery included ○ Strong against load and gentle on power lines ○ Easy to operate, with ample safety considerations For more details, please contact us or download the catalog.

• Substation equipment

Our "Noise Trouble Consultation Room" was established in 1983 as a specialized technical department for noise trouble measures. Since then, we have received consultations on various noise disturbances amounting to 3,000 cases annually and have been working on their resolution. To date, we have accumulated an extensive track record and rich experience, receiving significant recognition from various sectors.

• Lightning protection