Comprehensive Catalog of Power Supplies, Testing Equipment, and Transformers

Tokyo Seiden Corporation Power Supplies, Testing Equipment, Transformers 'Comprehensive Catalog' Free Distribution!

last updated Jul 19, 2023

Special instrument transformer

It is possible to manufacture VT and CT for three-phase use without the hassle of switching primary side taps.

last updated Jul 19, 2023

High-precision current transformer 'CT-90M'

The adoption of a directionally oriented ring core with excellent magnetic characteristics results in superior error characteristics!

last updated Jul 19, 2023

High voltage oil-filled instrument transformer

Capable of measuring 110kV high voltage! This is a transformer for high voltage oil-filled instruments in accordance with JIS C1731-2.

last updated Jul 19, 2023

Measurement methods for current transformers (calibration methods).

Reading and comparing two values! An introduction to the measurement method (calibration method) of current transformers.

last updated Jul 19, 2023

[Same-day response for estimates] Providing the latest inventory information for power supplies, reactors, and other products.

Immediate quotes and quick shipping to solve your problems! Products in stock can be delivered within one week.

last updated Sep 08, 2025