東京精電 List of Products and Services

This is a comprehensive catalog of power supplies, testing equipment, and transformers handled by Tokyo Seiden. We offer a variety of products tailored to different applications! We also accept orders for customized products based on customer requests. ◆◆ Contents ◆◆ - High-frequency power supply - Constant frequency constant current power supply - SCR type constant voltage power supply - Sliding type constant voltage power supply - High-efficiency constant frequency constant voltage power supply - Dielectric strength tester - Insulation dielectric strength tester - High-frequency dielectric strength tester - Compact single-phase power transformer - Cut core type power transformer - Single-phase and three-phase power transformers ● For other functions and details, please download the catalog.

We introduce our specially manufactured "Voltage Transformers (VT)" and "Current Transformers (CT)." These devices convert high voltage and large current into measurable voltage and current that can be read by digital multimeters and other instruments. We can produce CTs for high voltage circuits, VTs for three-phase systems, and VTs and CTs without the hassle of primary side tap switching. We can design and manufacture for general measurement (accuracy class 0.5 to 3.0) and standard use (accuracy class 0.1 to 0.2). (Manufacturing with a ratio error of 0.05% is also possible.) 【Features】 ■ Converts high voltage and large current into measurable voltage and current for digital multimeters and other instruments ■ Capable of producing CTs for high voltage circuits and VTs for three-phase systems without the hassle of primary side tap switching ■ Design and manufacture for general measurement (accuracy class 0.5 to 3.0) and standard use (accuracy class 0.1 to 0.2) are possible *For more details, please refer to the PDF document or feel free to contact us.

The "CT-90M" is a high-precision large CT based on JIS standards. The insulation method involves full molding with epoxy resin, making it a highly reliable current transformer that demonstrates exceptional strength in electrical properties, mechanical properties, weather resistance, humidity resistance, and chemical resistance. By adopting a directional ring core with good magnetization characteristics, it excels in error characteristics and is suitable for applications that measure large currents flowing through copper bars when integrated into large equipment. 【Features】 ■ Excellent error characteristics due to the adoption of a directional ring core with good magnetization characteristics ■ Demonstrates exceptional strength in electrical properties, mechanical properties, weather resistance, humidity resistance, and chemical resistance ■ Suitable for applications that measure large currents flowing through copper bars when integrated into large equipment *For more details, please refer to the PDF document or feel free to contact us.

The "High Voltage Oil-Filled Instrument Transformer" is a voltage transformer (VT) capable of measuring high voltages of 110kV. The frequency is 50/60Hz, and the weight is approximately 620kg. It complies with JIS C1731-2. 【Features】 ■ Capable of measuring 110kV high voltage ■ Complies with JIS C1731-2 ■ Compliance standard: JIS C1731-2 ■ Primary voltage: 110kV ■ Secondary voltage: 110V ■ Rated burden: 10VA *For more details, please refer to the PDF document or feel free to contact us.

Our company performs calibration using a measurement method called comparative testing. Standard voltage transformers (VTs) and standard current transformers (CTs) are the reference VTs and CTs that have been tested at the Japan Electric Measuring Instruments Inspection Institute. Additionally, the test voltage transformers (VTx) and test current transformers (CTx) are, for example, the VTs and CTs for which we have received calibration requests from customers. For each, two values are read and compared. The values are small because they are theoretically the same ratio. *For more details, please refer to the related links page or feel free to contact us.*

Standard products are in stock and can be confirmed from the "Tokyo Seiden Stock Status" below. You can check not only the stock quantity but also the expected completion date and the expected number of units. 【Product Lineup】 　■ Power Supply Units (latest catalog available) 　■ Dielectric Strength Testers 　■ DC Uninterruptible Power Supplies 　■ Reactors (latest catalog available) 　■ Amorphous Noise Filters 　■ Load Devices 　■ Shunts 　■ Current Transformers * The latest catalog can be downloaded from this page. Regarding transactions, you can choose between direct transactions or transactions through trading companies, and we can also accommodate orders via Amazon (with the fastest response possible). http://www.tokyo-seiden.co.jp/amazon/ 【Catalog content refreshed after several years!】 We have updated the content of the catalog, including power supplies and reactors. We would be grateful if you could take a look. When considering a purchase, please refer to the related links below or feel free to inquire. * Custom products are also accepted at any time!