東京精電 List of Products and Services

The "TWV Series" is a series of AC dielectric withstand testers with output voltages up to AC 20kV and capacities up to 2.5kVA, including models with 3kV (30VA), 5kV (500VA), and 10kV (500VA). It can perform dielectric withstand tests and insulation resistance tests similar to the conventional TWV series, featuring functions such as "voltage compare function," "pass/fail judgment function with upper and lower limit settings," and "timer function." Additionally, the TWV series can accommodate output voltages up to AC 100kV and capacities up to 5kVA. *Note: When the dielectric withstand output voltage is 10kV or higher, the output terminals will be separate for dielectric withstand testing and insulation resistance testing. 【Features】 ■ Voltage compare function ■ Pass/fail judgment function with upper and lower limit settings ■ Timer function *For more details, please refer to the PDF materials or feel free to contact us.

The "Inclined Plate Method Tracking Resistance Tester" complies with the contaminated liquid inclined plate method (step-up tracking method) of IEC60587 and is also compatible with the testing of IEC61730-1 (international standard for solar cell modules), allowing for the evaluation of tracking resistance. By using contaminated liquid and an inclined plate test specimen to measure tracking resistance and erosion resistance, it enables the assessment of electrical insulating materials under harsh environmental conditions at commercial frequencies (48-62Hz). 【Features】 ■ Complies with the step-up tracking method ■ Compatible with testing of international standards for solar cell modules ■ Capable of evaluating electrical insulating materials *For more details, please refer to the PDF document or feel free to contact us.

The "Portable DC Voltage Withstanding Test Device" is an apparatus used for conducting dielectric strength tests on semiconductor rectifiers such as diodes and thyristors. Although it has a DC output, the output voltage waveform is a half-wave rectified waveform of the input voltage waveform. The maximum test voltage is 8kV peak, with a peak value of 8kV. Since the output terminals are floating, grounding either the positive or negative terminal allows for an output of +8kV / -8kV. It features a convenient carrying handle. (A shoulder strap can also be attached.) 【Features】 ■ DC output ■ Maximum test voltage of 8kV peak ■ Peak value of 8kV ■ Convenient carrying handle ■ Shoulder strap can also be attached *For more details, please refer to the PDF document or feel free to contact us.

The "Pinhole Tester" is a device that generates stable high DC voltage to conduct dielectric strength tests on the coatings of electrolytic capacitors. It can inspect for holes or scratches in the outer film of the electrolytic capacitor. The test is performed by applying voltage between an electrode that wraps around the outside of the tube and the case of the electrolytic capacitor. It can be turned ON/OFF remotely and comes with an acrylic cover to prevent accidental operation. 【Features】 ■ Generates stable high DC voltage for testing ■ Remote ON/OFF capability ■ Includes an acrylic cover to prevent accidental operation *For more details, please refer to the PDF document or feel free to contact us.

At Tokyo Seiden, we offer a variety of optional items that can be used with the "TWV Series," including various probes for testing, gloves and boots for safe testing, rubber mats, remote boxes for operation from a distance, and jigs for start-up inspections. 【Lineup】 ■Rotating lights ■Safety equipment ■Remote operation ■Test probes ■Test cables ■Inspection jigs *For more details, please refer to the PDF materials or feel free to contact us.

The "Insulation Material Tester" is a testing device used to evaluate the properties of insulation materials (such as tracking resistance, arc resistance, and flammability). Tests can be conducted based on standards such as UL, IEC, DIN, ASTM, JIS, and JEC. There are devices for accelerated testing of insulation degradation due to tracking, such as tracking resistance testing equipment; devices for testing flammability using heating wires (such as nichrome wire); and devices for evaluating insulation degradation caused by arc discharge, such as arc resistance testing equipment. This document provides detailed information about each testing device. 【Product Lineup】 ■ Tracking Resistance Testing Equipment ■ Heating Wire Flammability Testing Equipment ■ Arc Resistance Testing Equipment ■ Arc Ignition Resistance Testing Equipment *For more details, please refer to the PDF document or feel free to contact us.

This is a testing device that corresponds to insulation resistance tests for solar cell modules and fuel cells. It can be used for testing solar cells (modules and arrays) and fuel cells (cells and stacks). [Examples] - Solar cells for a 750kW solar power generation system - Open circuit voltage: 470V - For testing at DC voltage: 470V × 1.5 = 705V *For more details, please refer to the PDF document or feel free to contact us.

The "DC/AC High Voltage Tester" is a testing device that can perform both DC voltage tests and AC voltage tests. This device can be used for low-voltage turn-on tests of thyristor modules within power conversion devices. The output polarity of the DC can be switched. The trip current settings can be configured separately for the DC side and the AC side. The output voltage is adjusted with a 3kVA slider. 【Features】 ■ Capable of performing DC voltage tests ■ Capable of performing AC voltage tests ■ DC output polarity can be switched ■ Trip current settings can be configured individually *You can check the stock status from the related link.

The "Induced Dielectric Strength Tester" is a testing device used to evaluate the insulation strength between windings and layers of transformers and similar equipment. The induced dielectric strength test applies high voltage at a frequency higher than the rated frequency to prevent excessive no-load current. The "High-Frequency Dielectric Strength Tester" can apply even higher frequencies. It can be used for accelerated testing of insulation performance in motor windings and induction heating coils, as well as serving as a high-frequency output power source. Similar to the dielectric strength tester, it allows for the setting of test duration and cutoff current. 【Product Lineup】 ■ Induced Dielectric Strength Tester - Inverter power supply type - Linear amplifier power supply type ■ High-Frequency Dielectric Strength Tester - Linear amplifier power supply type *For more details, please refer to the PDF document or feel free to contact us.

The "Induction Dielectric Strength Tester" is an induction dielectric strength tester that can vary the output frequency from 50 to 400 Hz. It is capable of testing the insulation strength between the windings of transformers, between winding layers, between turns, and between terminals. It has a pass/fail judgment function that allows you to set upper and lower limits for current values and a timer function. The voltage compare function ensures that testing does not begin until the output voltage set by the voltage adjustment knob falls within ±3% of the reference voltage value, allowing for accurate testing. 【Features】 ■ Pass/fail judgment function ■ Timer function ■ Voltage compare function ■ Equipped with RS-232C interface ■ Customizable options available *For more details, please refer to the PDF document or feel free to contact us.

Voltage withstand tests based on various standards are possible! A voltage withstand tester that enhances the accuracy of tests with a variety of features. 【Features】 ○ Equipped with a lamp timer function ○ Contact check function to prevent incorrect pass judgments ○ Achieves stable output ○ Equipped with a memory function ○ The fluorescent display tube has excellent visibility and is very easy to read, allowing for quick confirmation of test status and results ○ Easy-to-use operation panel ○ Automatic testing function ○ Input voltage free ○ Interlock function ○ Standard equipped with external I/O, RS-232C, and GPIB ● For other features and details, please download the catalog.

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.

The device is a tester for conducting breakdown tests on wires and insulating materials. It increases voltage at a constant speed and holds the display of the voltage at the time of insulation breakdown. After reaching the set voltage, it can start a timer, allowing it to function as a dielectric strength tester as well. Additionally, we have a track record of producing products equipped with features such as constant temperature chambers and simultaneous testing capabilities for three circuits. Output current, voltage, and rise speed can be customized, so please feel free to contact us. 【Features】 ■ Tester for conducting breakdown tests on wires and insulating materials ■ Increases voltage at a constant speed and holds the display of the voltage at the time of insulation breakdown ■ Can start a timer after reaching the set voltage, allowing it to function as a dielectric strength tester ■ Customizable output current, voltage, and rise speed *For more details, please refer to the PDF materials or feel free to contact us.

This product is a testing device that applies voltage to insulating materials and evaluates the breakdown value of the insulating material. It can continuously apply a constant voltage or evaluate the breakdown value by increasing the voltage at a constant rate. It can be manufactured according to the testing content specified by various standards and criteria, and we will design each tank according to the desired shape for tests in air or oil. 【Features】 - A testing device that applies voltage to insulating materials and evaluates the breakdown value of the insulating materials. - Capable of continuously applying a constant voltage or evaluating the breakdown value by increasing the voltage at a constant rate. - Can be manufactured according to the testing content specified by various standards and criteria (such as JIS-C2110). - Electrodes can be produced to match the shape of the insulating materials (film, sheet, wire, etc.). - Has a proven track record in insulation breakdown testing of wires (polyester fibers, enamel fibers, glass fibers, meta-aramid fibers, etc.). *For more details, please refer to the PDF document or feel free to contact us.

This device allows for evaluation tests close to real-world conditions without the need to mount SiC semiconductors or devices used in combination with SiC semiconductors onto actual equipment. Under conditions similar to those of actual equipment installation, it is possible to verify waveforms using various measuring instruments for loss, heat generation, noise, and durability. Additionally, due to its regenerative function, it enables large-capacity testing with low power consumption. It can also be applied to testing devices for automotive reactors, IGBTs, and IPMs other than SiC semiconductors. 【Features】 - Enables evaluation tests close to real-world conditions without mounting devices used in combination with SiC semiconductors onto actual equipment. - Allows verification of waveforms for loss, heat generation, noise, and durability using various measuring instruments under conditions similar to actual equipment installation. - Achieves large-capacity testing with low power consumption due to its regenerative function. - Can also be applied to testing devices for automotive reactors, IGBTs, and IPMs other than SiC semiconductors. *For more details, please refer to the PDF document or feel free to contact us.

This coil can achieve test results equivalent to those obtained when passing a large current with a small current during clamp meter testing. Since it is made solely of copper wire, it is very inexpensive and can be produced in a short lead time. The number of coil turns and dimensions can also be changed. Additionally, the section that passes through the clamp is straight, which increases the occupancy rate. 【Features】 - Made solely of copper wire, making it very inexpensive and able to be produced in a short lead time. - The number of coil turns and dimensions can be changed. - By passing multiple turns of the coil through the clamp, it gains ampere-turns (AT), allowing tests similar to those conducted with a large current even with a small current. - The section that passes through the clamp is straight, increasing the occupancy rate. *For more details, please refer to the PDF document or feel free to contact us.

The TS-EB0316 is an AC dielectric withstand tester that boosts an input of AC 200V to a constant speed up to 5kV to 70kV for conducting dielectric strength tests. The test is completed by turning off the output with the stop button. Additionally, if excessive current flows during application, the output will be cut off. 【Features】 ■ Boosts input AC 200V to 5kV to 70kV at a constant speed ■ Conducts dielectric strength tests ■ Test is completed by turning off the output with the stop button ■ Cuts off output if excessive current flows during application *You can check the stock status from the related links.

The TS-EB0299 is a testing device that applies AC voltage to a capacitor using a constant-speed boost to investigate the breakdown voltage. It allows for settings such as speed and cutoff current. It also has functions for AC dielectric strength testing. The boost speed can be set over a wide range from 25V/second to 500V/second. Additionally, the output capacity is 10kVA, allowing for testing of capacitors with large capacitance. 【Features】 ■ Boost speed can be set over a wide range from 25V/second to 500V/second ■ Output capacity of 10kVA allows for testing of capacitors with large capacitance ■ Cutoff current can be set over a wide range from 10mA to 990mA ■ Voltage settings can also be adjusted manually *For more details, please refer to the related link page or feel free to contact us.

The TS-EF0167 is a device that charges a capacitor block and discharges a large current using a thyristor. It can be used for evaluating large current DC CTs. The discharge current value is determined by the charging voltage. Additionally, when the charging voltage reaches the set value, it automatically transitions to discharge, and the peak value of the current that flowed is held on the ammeter display. 【Features】 ■ The discharge current value is determined by the charging voltage. ■ It automatically transitions to discharge when the charging voltage reaches the set value. ■ The peak value of the current that flowed is held on the ammeter display. ■ The current display shows the value of peak current × 200 (AT). *For more details, please refer to the related links or feel free to contact us.

The TS-EB0315 is a DC high voltage tester that boosts AC100V to an output voltage of DC 0 to 20kV for insulation breakdown tests or dielectric strength tests. Voltage adjustment is performed using a motor-driven voltage regulator. In terms of safety, door signals, a lower limit start for the voltage regulator, and a soundproof sample box are provided. 【Specifications (partial)】 ■Dimensions - Main unit: W433×H717×D503 (mm) (excluding protrusions) - Sample box: W350×H620×D350 (mm) (excluding protrusions) ■Weight - Main unit: approximately 90kg - Sample box: approximately 20kg *You can check the stock status from the related links.

The "TS-EB0321" is designed to step up single-phase AC 100V to single-phase AC 2kV for insulation breakdown testing. The test case is equipped with an interlock function that stops the test when the door is opened, and it will also stop the test if the door opens during the test. Testing can be conducted using a two-hand switch remote box. 【Features】 ■ Steps up single-phase AC 100V to single-phase AC 2kV for insulation breakdown testing ■ The test case is equipped with an interlock function that stops the test when the door is opened; it will also stop the test if the door opens during the test ■ Testing can be conducted using a two-hand switch remote box *For more details, please refer to the related links 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!

The "TS-EB0270" is a device for performing insulation resistance tests, capable of conducting short-time breakdown tests and dielectric strength tests. It allows for a wide range of testing through output voltage switching. Automatic and manual voltage rise tests are also possible. Additionally, it can record and display breakdown voltage, and transfer data to a computer. For safety, it includes discharge relays, door detection and locking, mat switches, and signal lights. 【Features】 - Improved multifunctionality and operability through touch panel operation and display - Wide range of testing possible with 25kV/50kV and 100kV output - LAN connection available, allowing data recorded internally to be transferred to a computer - Printer connection is also possible, enabling printing of data for a specified number of times *For more details, please download the PDF or feel free to contact us.

Our company offers calibration services, including shunts (dividers), based on a traceability system that is traced to national standards using standard instruments. Calibration is performed based on product specifications, following our calibration standards for calibration items, calibration range, and calibration points. Upon request, we will issue calibration reports, calibration certificates, and traceability system diagrams that record calibration data. For JCSS calibration, it is possible to outsource to external organizations through our company. We also accept calibration services for products from other companies. Please consult us regarding costs and testing details in such cases. 【Features】 ■ Calibration using standard instruments traced to national standards based on a traceability system ■ If there are issues with calibration results, we will inquire about repairs and adjustments ■ Calibration is conducted based on product specifications, following our calibration standards for calibration items, calibration range, and calibration points ■ Completed calibration items will have a label affixed to the product indicating the calibration date *For more details, please refer to the related links or feel free to contact us.