東京精電 List of Products and Services

The AC Constant Current Power Supply "CCFT Series" and the High Current Generation Power Supply "PS-HB0097" are both products that provide high-performance current generation power supplies. They achieve high-precision current supply tailored to specific needs and are widely used in experiments and industrial applications. 【AC Constant Current Power Supply "CCFT Series"】 - Achieves high-precision current control with a linear amplifier design. - Features variable frequency and variable constant current functions using PLL and linear methods. - Can be equipped with a rack mount adapter, and control is possible via GP-IB or BCD interface as an option. 【High Current Generation Power Supply "PS-HB0097"】 - A high current generation power supply equipped with a manual slider. - Includes a built-in breaker for overcurrent protection. - Capable of outputting from single-phase AC 5V to 400A, with manual adjustment via the slider. *For more details, please refer to the related links or feel free to contact us.

• Other power sources

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.

• Testing Equipment and Devices

The PS-HB0097 is a high current generation power supply that incorporates a manual slider and a current generating transformer into a case. It features a breaker for the ON/OFF of the input power and overcurrent protection, as well as a power lamp and an ammeter. Additionally, we also offer the AC constant current power supply "CCFT series." 【Specifications (excerpt)】 <General Specifications> ■Dimensions: 362(W) × 350(D) × 466(H) (excluding protrusions), floor-standing type case, secondary side terminals are connected via transformer output wires (crimp terminal 2-R150-16) ■Cooling method: Natural air cooling (for a time rating of 20 minutes) <Electrical Specifications> ■Output: Single-phase AC 5V-400A, manually adjustable via slider ■Overcurrent protection: Input breaker *For more details, please refer to the related links or feel free to contact us.

• Other power sources

The "CCFT Series" is an AC constant current power supply using a linear amplifier. It is a product that features variable frequency and variable constant current power supply capabilities through PLL and linear methods, with the ability to control constant current in a sine wave form in response to load fluctuations. The standard variable current range is from 0A to capacity (VA) / maximum output voltage (V), but by using an external output transformer, it is possible to adjust the variable current range to the required size. 【Features】 ■ Linear amplifier type ■ Rack mount adapter compatible ■ Control via GP-IB or BCD interface (optional) *For more details, please refer to the related links or feel free to contact us.

• Power Supplies

The "CVFT-D Series" is a variable frequency variable voltage stabilized power supply device. It employs a crystal oscillator as the frequency reference and uses a phase-locked loop (PLL) for a synthesizer method, allowing the output frequency to be digitally set. Additionally, through the use of P-ROM, D/A converters, and linear amplifier methods, it outputs a stable sine wave voltage with low distortion. This device is used for evaluating electronic equipment in various power supply environments. 【Features】 ■ Digital operation and display sections ■ Output voltage is variable from 0 to 140/280 (single-phase) ■ Output capacity ranges from 250VA (CVFT1-250HA) to 10KVA (power factor 0.85 to 1) ■ Series with single-phase output and three-phase output (three-phase four-wire) ■ Output frequency (sine wave) is variable from 10 to 99.9 (0.1Hz steps) / 1000Hz (1Hz steps) ■ Outputs a clean sine wave voltage with a distortion rate of 0.5% or less (45.0 to 99.9Hz) *For more details, please refer to the related links or feel free to contact us.

• Power Supplies

The TS-EE0194 is a high-current resistor with terminals attached to the resistance element. By installing it on a heat sink or water cooling plate, it allows for high current flow. It is suitable for the development and evaluation of various batteries. 【Specifications】 ■ Rated current: 400A ■ Resistance value: 5mΩ ■ Power consumption: 800W (cooling is required) ■ Voltage withstand and insulation resistance: 2000V for 1 minute, over 10MΩ ■ Dimensions: W620×D92×H40 (mm) *For more details, please refer to the related links or feel free to contact us.

• Resistors

The PS-HC0102 is a manual DC variable power supply designed for charging and discharging capacitors. It steps up three-phase 200V using a voltage regulator and transformer, outputting a full-wave rectified waveform. Discharge is done using a thyristor type, resulting in lower noise compared to relay types. It can output a maximum of 2000V and 2.5A. 【Features】 ■ Maximum output of 2000V and 2.5A ■ Steps up three-phase 200V using a voltage regulator and transformer, outputting a full-wave rectified waveform Charges with 12-phase full-wave rectification ■ Discharge is done using a thyristor type, resulting in lower noise compared to relay types *For more details, please refer to the related links or feel free to contact us.

• Other power sources

The PS-HB0103 is a power supply that generates large currents ranging from AC5A to 100A, 40A to 800A, and 100A to 2000A from a single-phase AC200V source. The output current is variable through a motor-driven sliding type voltage regulator, and in automatic mode, it features constant current control. In manual mode, voltage can be adjusted using a push-button switch, allowing for current adjustments while monitoring the output current. 【General Specifications】 ■Dimensions: 500 (W) × 1400 (H) × 900 (D) mm (including the patrol light, excluding protrusions) ■Weight: Approximately 215 kg ■Cooling: Natural air cooling *For more details, please refer to the related links or feel free to contact us.

• Other power sources

The PS-HB0104 is a power supply that generates large currents ranging from AC100A to AC2000A from a single-phase AC200V source. The output current is variable through a sliding-type voltage regulator and can be adjusted using a manual handle. The external dimensions are 802 (W) × 1350 (H) × 802 (D) mm, and the weight is approximately 270 kg. 【General Specifications】 ■ External Dimensions: 802 (W) × 1350 (H) × 802 (D) mm * Includes casters, but does not include cable hooks, output terminals, protruding parts such as handles, or rotating lights. ■ Weight: Approximately 270 kg ■ Cooling: Natural air cooling * For more details, please refer to the related links or feel free to contact us.

• Other power sources

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.

• Testing Equipment and Devices

The PS-HD0063 is an AC/DC high-voltage power supply that converts AC 100V to either AC 0–50kV or DC 0–+50kV and DC 0–-50kV. Voltage and frequency settings are performed using a constant frequency and constant voltage power supply, ensuring stable output voltage. Please feel free to contact us when you need assistance. 【General Specifications】 ■Dimensions - When three units are arranged: W2183×H1392×D1003 (mm) *Excluding protrusions. - One unit: W723×H1392×D1003 (mm) *Including rubber feet, excluding protrusions. ■Weight: Approximately 1000 kg or less (total weight of AC unit and ±DC unit) *Please move in three separate units during transportation. ■Insulation Resistance and Dielectric Strength: Input ⇔ Ground Insulation Resistance: DC 500V, 10MΩ or more Dielectric Strength: AC 1500V for 1 minute *In a state where internal protective components are removed. *For more details, please refer to the related links or feel free to contact us.

• Other power sources

The "SUC Series" is an uninterruptible power supply (UPS) that can charge batteries not only from AC input but also from natural energy sources such as solar panels. There are a total of eight models available, based on combinations of power (capacity) and battery voltage (12V/24V). It features two operating modes: UPS mode (normal UPS operation) and SAV mode (natural energy priority), with SAV mode designed to operate with expected power supply from solar panels. 【Features】 - Capable of charging batteries from natural energy sources such as solar panels - A total of eight models available - Two operating modes: UPS mode (normal UPS operation) and SAV mode (natural energy priority) - Frequency phase is aligned during output switching *For more details, please refer to the related links or feel free to contact us.

• UPS/Uninterruptible Power Supply

The "TS-EB0320" is a power supply device used for inspecting components that operate at three-phase AC 220V and are boosted to three-phase AC 6.6kV for use in a 6600V distribution system. It consists of a slide transformer and a high-voltage transformer, with manual voltage adjustment. The external dimensions are W900×H1262×D600mm, and all four casters are movable and equipped with locks. 【General Specifications (Partial)】 ■ External dimensions: W900×H1262×D600 (mm) (including casters) All casters (4) are movable and equipped with locks ■ Weight: Approximately 270kg ■ Cooling method: Natural air cooling ■ Insulation resistance: Input-output and ground DC 500V 10MΩ or more *For more details, please refer to the related links or feel free to contact us.

• Other power sources

The TS-EE0182 is a three-phase resistive load device that incorporates power resistors. The load can be set using a manual switch on the panel. Additionally, the input voltage can be set using a switch to toggle between 200V and 400V. Please feel free to contact us when you need assistance. 【General Specifications】 ■Dimensions: W400×D582×H1084mm (including casters) Four swivel casters, two of which have brakes ■Weight: Approximately 80kg ■Cooling method: Forced air cooling *For more details, please refer to the related links or feel free to contact us.

• Electronic Load Unit

The TS-EE0179 is a three-phase, three-wire resistive load device that uses power resistors. It consists of a load section and a timer section, housed in an outdoor-compatible panel. The load section can be turned ON/OFF via a toggle switch on the front panel and also through external input. The timer section outputs ON/OFF signals to the external input of the load section by executing a program. 【General Specifications】 ■Dimensions: W680mm × D800mm × H1190mm ■Weight: Approximately 130kg ■Installation Location: Outdoor ■Cooling Method: Forced air cooling *For more details, please refer to the related links or feel free to contact us.

• Electronic Load Unit

The PS-HC0101 is a non-isolated 80kW three-phase rectifier unit. It converts three-phase AC 150V into DC. The external dimensions are W572mm x H451mm x D500mm, and it is cooled by forced air cooling using a fan. 【Specifications】 ■ External dimensions: W572mm x H451mm x D500mm (excluding protrusions) ■ Cooling: Forced air cooling by fan (Fan power supply AC100V 2A or less) ■ Input ・ Voltage: Three-phase AC150V ・ Frequency: 50/60Hz ■ Output ・ Voltage: DC200V ・ Capacity: 80kW *For more details, please refer to the related links or feel free to contact us.

• Other power sources

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.

• Other power sources

The PS-HB0094 is a three-phase constant current power supply composed of a motor-driven voltage regulator and a transformer. It generates alternating current of 2500Arms or 500Arms across three circuits, with each circuit operating independently. Single-phase output using only the U phase is also possible, and operation can be performed via the operation panel or remotely (RS-232C). 【Features】 ■ Composed of a motor-driven voltage regulator and transformer ■ Generates alternating current of 2500Arms or 500Arms across three circuits ■ Single-phase output using only the U phase is possible ■ Operation can be performed via the operation panel or remotely (RS-232C) *For more details, please refer to the related links or feel free to contact us.

• Other power sources

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.

• Other power sources

The PS-HC0092 converts three-phase 200V to DC 10V, supplying power to the load. It has a simple configuration that only steps down three-phase AC with a transformer and performs six-phase half-wave rectification, capable of outputting 2000A. The input and output are isolated by the transformer, and it has a proven track record as a power supply for vapor deposition machines. 【Features】 ■ Simple configuration that only steps down three-phase AC with a transformer and performs six-phase half-wave rectification ■ Output terminals are copper bars, with a built-in shunt for current measurement ■ Input and output are isolated by the transformer ■ Proven track record as a power supply for vapor deposition machines *For more details, please refer to the related links or feel free to contact us.

• Other power sources

The TS-EB0258 is a high-voltage application testing device composed of an operation panel, a sliding type constant voltage power supply, and eight high-voltage transformers. It converts commercial 200V to 0–50kV and applies it to the test specimen. Each of the eight circuits can be operated and set individually. The application time is measured by a timer, and if an overcurrent occurs during application, the output will be cut off. 【Features】 ■ Simultaneous testing of eight units ■ Converts commercial 200V to 0–50kV and applies it to the test specimen ■ Application time is measured by a timer ■ Output is cut off in case of overcurrent during application *For more details, please refer to the related link page or feel free to contact us.

• Power Supplies

The "RR3-6K (TS-EE0163)" is a three-phase resistive load device that incorporates power resistors. The circuit configuration consists of two circuits of 0.5kW, one circuit of 1kW, and two circuits of 2kW in three phases. The load can be set using the manual switch on the panel. 【General Specifications】 ■ Cooling Method: Forced Air Cooling ■ Dimensions: W440×H610×D360 (mm) (excluding protrusions) ■ Weight: Approximately 28Kg *For more details, please refer to the related link page or feel free to contact us.

• Electronic Load Unit

The TS-EE0164 is a natural air-cooled reactor box for single-phase use. By setting a short bar on the terminal block at the top of the main unit, you can select the reactor to be connected. 【General Specifications】 ■ Cooling Method: Natural Air Cooling ■ Dimensions: W450×H650×D340 (mm) (excluding casters and protrusions) ■ Weight: Approximately 120 kg *For more details, please refer to the related link page or feel free to contact us.

• Electronic Load Unit

The PS-HB0096 is a noise filter that is inserted into a three-phase 400V line. Dimensions are W590×D360×H560mm (excluding protrusions and suspension bolts). The cooling method employs natural air cooling. 【General Specifications】 ■ Cooling Method: Natural Air Cooling ■ Dimensions: W590×D360×H560 (mm) (excluding protrusions and suspension bolts) ■ Weight: Total: Approximately 150Kg (Reactor AF0573: Approximately 50kg, Reactor AF0574: Approximately 70kg) *For more details, please refer to the related link page or feel free to contact us.

• filter

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.

• Weather resistance test

The "TR-AC0915" is a half-wave rectifier device that grounds one side of an AC step-up transformer and connects a high-voltage rectifier in series on the other side. The rectifier consists of two circuits, one for (+) and one for (−), and each circuit is equipped with a protective resistor. 【Features】 ■ Grounds one side of the AC step-up transformer and connects a high-voltage rectifier in series on the other side ■ The rectifier has two circuits, one for (+) and one for (−) ■ Each circuit includes a protective resistor *For more details, please refer to the related link page or feel free to contact us.

• Charger

The "RLC3-4KAC (TS-EE0168)" is a three-phase forced air-cooled power factor variable load device. The rated capacity is based on continuous rated values, and both inductive loads (L load) and capacitive loads (C load) can be set independently. It can continuously vary within the range of lagging power factor and leading power factor from 0.1 to 1.0. 【Features】 ■ Rated capacity is based on continuous rated values ■ Inductive loads and capacitive loads can be set independently ■ Can continuously vary within the range of lagging power factor and leading power factor from 0.1 to 1.0 *For more details, please refer to the related link page or feel free to contact us.

• Electronic Load Unit

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.*

• Other FA equipment

The "Power Inductor for Large Current Smoothing" features a ferrite core with excellent frequency characteristics and a flat rectangular winding coil (edgewise coil), making it suitable for high frequency and large current applications. The heat resistance class is F. We offer two models: "AG1341" with an inductance of 3.5μH and "AG1391" with 27μH. 【Features】 ■ Usable for high frequency and large current ■ Heat resistance class is F *For more details, please refer to the related link page or feel free to contact us.

• Inductor Coil

The PS-HC0100 is a DC power supply device with regenerative functionality. It is suitable for motor inverter drives and regenerates energy from the motor back to the power supply side. By incorporating an active filter, it suppresses input harmonic currents with high power factor. Additionally, it adopts a three-phase interleaved method in the DC-DC section for low ripple, and the output can be externally set from DC 90V to DC 150V. 【Features】 ■ Suitable for motor inverter drives ■ Regenerates energy from the motor back to the power supply side ■ Incorporates an active filter to suppress input harmonic currents with high power factor ■ Adopts a three-phase interleaved method in the DC-DC section for low ripple ■ Output can be externally set from DC 90V to DC 150V *For more details, please refer to the related link page or feel free to contact us.

• Power Supplies

The "High-Frequency Ripple Superimposed Power Supply" is a power supply device that applies direct current to test objects such as capacitors while flowing ripple current for evaluation. Direct current can be applied up to 1600V. It is equipped with protection features for output overcurrent, overvoltage, and overheating. 【Features】 ■ Applies direct current to test objects such as capacitors while flowing ripple current ■ Conducts evaluations ■ Direct current can be applied up to 1600V *For more details, please refer to the related link page or feel free to contact us.

• Power Supplies

The PS-HB0097 is a high-current power supply that incorporates a manual slider and a current-generating transformer into a case. It uses natural air cooling (rated for 20 minutes of continuous use). A breaker is provided for the ON/OFF control of the input power and for overcurrent protection, along with a power lamp and an ammeter. 【Features】 ■ Incorporates a manual slider and a current-generating transformer into the case ■ Includes a breaker for ON/OFF control of the input power and for overcurrent protection ■ Equipped with a power lamp and an ammeter *For more details, please refer to the related link page or feel free to contact us.

• Power Supplies

The TS-EE0169 is a three-phase induction load device for inverters. It has no magnetic saturation and exhibits good frequency characteristics. Due to the high current and significant high-frequency components, it utilizes an air-core reactor without a magnetic core. Additionally, it employs forced air cooling as its cooling method. 【Features】 ■ High current with significant high-frequency components ■ Air-core reactor without a magnetic core ■ No magnetic saturation ■ Good frequency characteristics *For more details, please refer to the related link page or feel free to contact us.

• Electronic Load Unit

The TS-EE0167 is a load device that simulates the cable impedance of the system. The dimensions are W1300×D400×H1350 (excluding protrusions and anchor parts). It employs forced air cooling using an internal fan motor. 【General Specifications】 ■Dimensions: W1300×D400×H1350 (excluding protrusions and anchor parts) ■Weight: Approximately 200kg ■Cooling Method: Forced air cooling using an internal fan motor (no temperature control function) *For more details, please refer to the related link page or feel free to contact us.

• Electronic Load Unit

The "High-Frequency Transformer and Power Inductor" is mounted on Toshiba Device & Storage's 1.6kW AC-DC power supply reference board for servers. This power supply achieves a conversion efficiency of 93% (Vin=230V, at 100% load) at an 80Plus Platinum level in a 1U size, constructed by combining various advanced technologies. In addition to the "AN0536" mounted on the 1.6kW server power supply, we also offer the "AN0543" and "AN0545," which have been designed for the next generation of power supplies. 【Features】 ■ Mounted on a 1.6kW AC-DC server power supply reference board ■ Constructed by combining various advanced technologies ■ Circuit and design information is available online ■ Also mounted on newly designed power boards for the next generation *For more details, please refer to the related link page or feel free to contact us.

• Inductor Coil

The "SD-DC0157" is a manual sliding voltage regulator that can output up to 440V. Unlike power supplies that use semiconductors, it is resistant to instantaneous overcurrent and comes with casters for easy movement of the equipment. It is housed in a case, ensuring that the charging parts are not exposed and providing safety. Additionally, it features a simple structure that allows you to obtain the desired voltage by manually turning the handle, making it easy to operate. 【Features】 ■ Capable of outputting up to 440V with an input voltage of 200V ■ Strong against instantaneous overcurrent, unlike power supplies that use semiconductors ■ Simple structure that allows you to obtain the desired voltage by turning the handle ■ Safe with a case that prevents exposure of the charging parts ■ Easy to move the equipment with casters *For more details, please refer to the related link page or feel free to contact us.

• Optical Measuring Instruments

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.

• Testing Equipment and Devices

The PS-HB0092 is a low-voltage high-current power supply that converts three-phase 200V to 0–7000A across three circuits to supply power to loads. The control is independent for each of the three circuits, and the voltage adjustment is motor-driven. It consists of a pressure regulator panel, a transformer panel, and a control panel. 【Features】 ■ Converts three-phase 200V to 0–7000A across three circuits to supply power to loads ■ Independent control for each of the three circuits ■ Voltage adjustment is motor-driven ■ Composed of a pressure regulator panel, a transformer panel, and a control panel *For more details, please refer to the related link page or feel free to contact us.

• Power Supplies

A "shunt resistor" is a type of resistor used in current measurement, where current flows through the resistor and the voltage drop across it is measured. It is also used for high-precision measurements to convert current into voltage for measurement. Recently, it has been widely used as a sensor to send measurement values to digital panel meters and control circuits through detection circuits/converters. 【Features】 ■ A resistor used in current measurement, where current flows through the resistor and the voltage drop is measured. ■ Used for high-precision measurements to convert current into voltage for measurement. ■ Recently widely used as a sensor to send measurement values to digital panel meters and control circuits through detection circuits/converters. ■ A method to detect and measure the voltage generated by the resistance of the shunt. *For more details, please refer to the PDF document or feel free to contact us.

• Resistors

Tokyo Seiden Co., Ltd. provides repair services for power supplies and dielectric strength testers, among other products. First, please provide the model number, serial number, details of the malfunction, and the return address for the product you wish to have repaired. Based on the information received, we will submit a quotation for the inspection of the faulty parts. Please send the repair item to our factory, where we will conduct an inspection of the faulty parts. If repair is possible, we will submit a quotation for the repair costs and, after receiving your order, we will proceed with the work. Once the repair is complete, we will return the product to the specified address. *For more details, please refer to the PDF document or feel free to contact us.

• Calibration and repair

The "current-limiting reactor" is a product used in AC circuits connected in series to limit the short-circuit current during a short-circuit fault. It is used for protection during short circuits in facilities such as power receiving equipment. It must withstand the enormous short-circuit current both electrically and mechanically, which is why it is built robustly. While providing mechanical and thermal protection, it also aims to reduce the breaking capacity of the circuit breakers in the power receiving equipment. 【Features】 ■ Connected in series in AC circuits ■ Limits short-circuit current during faults ■ Reduces the breaking capacity of circuit breakers in power receiving equipment ■ Robust construction ■ Must be fixed with a separate insulating structure during installation *For more details, please refer to the PDF document or feel free to contact us.

• Other electronic parts

This product is a reactor that allows for easy adjustment of the inductance value (L value) by moving the iron core up and down through handle operation. Since it can change a wide range of L values with a single unit, it is possible to reduce costs and labor by preparing several types of reactors and switching terminals. The L value is changed by varying the gap of the iron core; moving the iron core upward decreases the L value, while moving it downward increases the L value. It has a proven track record for use in DC testing of low-voltage switching devices (JIS C8201-5). 【Features】 ■ Capable of changing a wide range of L values with a single unit ■ Reduces costs and labor by allowing terminal switching ■ Proven track record for DC testing of low-voltage switching devices ■ Custom design options available beyond proven products *For more details, please refer to the PDF document or feel free to contact us.

• Other electronic parts

At Tokyo Seiden Co., Ltd., calibration is performed using standard instruments traced to national standards based on a traceability system. Calibration is conducted according to the calibration items, calibration range, and calibration points based on our calibration standards, in accordance with product specifications. Upon request, we will issue calibration reports, calibration certificates, and traceability system diagrams that record the calibration data. We also accept calibration services for products from other companies. Please consult us regarding costs and testing details in such cases. 【Features】 ■ If there are issues with the calibration results, we will inquire about performing repairs or adjustments. ■ Calibration is conducted based on calibration items, calibration range, and calibration points according to our calibration standards. ■ Completed calibrated products will have a label affixed indicating the calibration date. ■ Calibration reports, calibration certificates, and traceability system diagrams will be issued. ■ We also offer on-site calibration services according to customer requests. *For more details, please refer to the PDF materials or feel free to contact us.

• Calibration and repair

The "Aluminum Wire Transformer" has achieved weight reduction and cost reduction by changing the winding from copper wire to aluminum wire. One of the advantages of using aluminum wire is that its market price is more stable compared to copper wire, resulting in smaller price fluctuations. It can be used for weight reduction in embedded and external transformers in machine tools, leading to reduced export costs and addressing floor collapse issues during renovations due to the lighter weight of the transformer in electrical installation work. [Features] - Winding changed from copper wire to aluminum wire - Achieves weight reduction and cost reduction - Smaller price fluctuations due to stable market prices *For more details, please refer to the PDF materials or feel free to contact us.

• transformer

The "24-phase transformer" is a transformer for diode rectified DC power supplies. By providing a 24-phase output, it is possible to suppress the output ripple voltage and improve the input power factor. By configuring the output windings of the transformer in four ways: Δ connection, Y connection, and staggered connection (±15 degrees), it is possible to obtain outputs that are phase-shifted by 15 degrees. As a result, the overall output voltage ripple is small, and the input current approaches a sine wave shape. 【Features】 ■ Capable of suppressing output ripple voltage ■ Improvement of input power factor ■ Ability to obtain outputs that are phase-shifted by 15 degrees ■ Overall output voltage ripple is small, and input current approaches a sine wave shape *For more details, please refer to the PDF document or feel free to contact us.

• transformer