光星計測器（LIGHTSTAR） List of Products and Services

The frequency meter is a measuring instrument that indicates the operating frequency. The displayed value varies depending on whether the input voltage is AC 50~260 or AC 10V. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

A thermometer is a measuring instrument that indicates temperature. Resistance temperature detectors (RTD) or thermocouple sensors (CA) can be used as applicable sensors. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

The energy meter is a measuring instrument that indicates real-time electrical energy consumption. The energy consumption is continuously accumulated and displayed on the meter's LCD. It consists of electrical contacts (Relay) and contactless (Open Collector). For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This is a measuring instrument that indicates three-phase alternating current. The R, S, and T phase displays can be accessed using the D/S button. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This is a measuring instrument that indicates three-phase alternating current voltage. The D/S button can be used to display RN, SN, TN, RS, ST, and RT. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This is a measuring instrument that indicates single-phase alternating current power and electrical energy. The watt-hour meter (KDL-W) indicates only power (W) and electrical energy (±Wh). For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This is a measuring instrument that indicates direct current power and energy. The watt-hour meter (KDM-W) indicates only power (W) and energy (±Wh). For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

Set limit values for alternating current, alternating voltage, direct current, and direct voltage. The output is divided into three forms, and only one value that satisfies the settings among HI, GO, and LO will be output. HI output: When the input reference value is greater than the HI setting, the HI relay is turned on and the HI LED lights up. GO output: When the input reference value is less than or equal to the HI setting and greater than or equal to the LO setting, the GO relay is turned on and the GO LED lights up. LO output: When the input reference value is less than the LO setting, the LO relay is turned on and the LO LED lights up. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This is a measuring instrument that indicates power factor. This product is a power factor meter. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This is a device developed to reduce electricity costs for low-voltage power consumers. It allows users to input parameters such as the meter reading period and the number of working days in a month, and it outputs alarms or relay signals when usage exceeds the set values, helping to prevent excess usage charges. Remote management is possible through the HMI program. Features: - Measures three-phase active power and accumulates and displays active energy over one hour, daily, and monthly. - Responsible for monitoring and controlling to adjust power consumption. - Capable of remote control and monitoring by transmitting data such as power and energy through RS-485 communication. - Allows for daily usage limits based on target usage and working days each month. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This is an instrument that measures and displays the AC input voltage, DC output voltage, and current for battery charging and discharging in a substation rectifier panel, and allows for remote monitoring via RS-485 communication. Features: - Measurement of DC voltage and DC current (output current and battery current) and maximum value (MAX) measurement - Customizable shunt primary value specifications - RS-485 serial communication function For inquiries, please contact "lightstar_1979@yahoo.co.jp". Power Multimeter

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This is an instrument that allows remote power monitoring via RS-485 communication, displaying three-phase current, three-phase voltage, active power, power factor, reactive power, frequency, active energy, and reactive energy. Features: - Displays values of V, A, W, PF, var, Hz, Wh, and varh through three sections on an LCD, with buttons to select and display three-phase voltage, current, and W, PF, Var, Hz, Wh, varh. - Allows arbitrary setting of primary values for CT and PT. - RS-485 serial communication function. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This is an instrument that measures and displays various electrical parameters such as phase voltage, current, line-to-line voltage, active power, reactive power, apparent power, power factor, frequency, active energy, reactive energy, harmonic voltage, and harmonic current, and is configured to allow remote monitoring of the measured data via RS-485 communication. It displays various measurement values, including current usage rate, on a single LCD screen. Features: - Automatic maximum value storage and viewing - Separate display of active energy and generated energy - LCD screen that displays clearly even in sunlight - Equipped with RS-485 communication for remote power quality monitoring - Displays power components by page, making it convenient for beginners to use For inquiries, please contact "lightstar_1979@yahoo.co.jp". Power Multimeter

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

The power factor controller is a control device that receives the input of voltage and current from the electrical circuit, determines the power factor, and has contacts that allow for the control of external capacitors to maintain the desired power factor set by the user. Features: - Control range settings can be divided between day and night. - OFFSET settings can be configured in the device to correct power factor errors for each region. - In the event of incorrect wiring of input voltage or current, the system can correct the wiring error using a button on the front, even while the system is operational (patented). Communication (RS-485) functionality can be set as an option. *This product is a balanced power factor controller. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

As an instrument for measuring the state of three-phase or single-phase power, it measures voltage, current, power, power factor, frequency, energy, and demand, and displays harmonics, unbalance rate, waveform, and vector to understand power quality. Features: - Displays voltage, current, power, frequency, power factor, energy, etc., on a single screen - Waveform, phase, and harmonics can also be checked - Equipped with RS-485 communication for remote power quality monitoring For inquiries, please contact "lightstar_1979@yahoo.co.jp". Power Multimeter

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This is an instrument that measures and displays various measurement elements such as phase voltage, current, line-to-line voltage, active power, reactive power, apparent power, power factor, frequency, active energy, reactive energy, harmonic voltage, and harmonic current, and is configured to allow remote monitoring of the measured data using RS-485 communication. It displays various measurement values, such as current usage rate, on a single LCD screen. Features: - Automatic saving and viewing of maximum values - Separate display of used energy and generated energy - LCD screen that displays clearly even in sunlight - Equipped with RS-485 communication for remote power quality monitoring - Displays power components by page, making it convenient for beginners to use For inquiries, please contact "lightstar_1979@yahoo.co.jp". Power Multimeter

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This device is an instrument that displays the voltage and current of a three-phase circuit using two LCD screens and two buttons, allowing for various voltage and current ratio settings. - Voltage display LCD: Displays line-to-line voltage and phase voltage sequentially (3P3W: total 3, 3P4W: total 6) - Indicator LED: Indicates the measured phase for each display LCD Example of indication) VRS: R/S LED ON VRN: R LED ON AR: R LED ON - Current display LCD: Indicates the current for each phase - VS button: Displays the voltage for each circuit and sets the voltage ratio - 3P3W: RS > ST > TR - 3P4W: RS > ST > TR > RN > SN > TN - AS button: Displays the current in the order of R > S > T for each circuit and sets the current ratio For inquiries, please contact "lightstar_1979@yahoo.co.jp". Electric multi-meter, electronic multi-meter

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This device is an instrument that displays the measurements of voltage and current, frequency, active power, and power factor of a three-phase circuit on two LCD screens with two buttons, allowing for various voltage and current ratio settings. - Voltage display LCD: Sequential display of line-to-line voltage and phase voltage (3P3W: total 3 EA, 3P4W: total 6 EA) - Indicator LED: Indicates the measured phase on each display LCD Example of indication: VRS: R/S LED ON VRN: R LED ON AR: R LED ON IR: R LED ON Hz: B LED ON - Current display LCD: Indicates each phase current, frequency, power, and power factor - VS button: Displays voltage for each circuit and sets voltage ratios - 3P3W: RS > ST > TR - 3P4W: RS > ST > TR > RN > SN > TN - AS button: Displays and sets current ratios in the order of R > S > T > Hz > W > PF for each circuit For inquiries, please contact "lightstar_1979@yahoo.co.jp". Electric multi-meter, electronic multi-meter

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This device measures and displays voltage and frequency, showing alarm values on the front screen when the set voltage and frequency exceed the specified range, and activates each alarm relay. - Voltage display LCD: Voltage indication - Displays setting items during configuration - Indicator LED: Lights up when the values on each display LCD exceed the limit setting range - Frequency display LCD: Frequency indication - Displays setting items during configuration - SET button: Starts and saves settings - ▲ button: Changes values during settings, cancels alarms For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This device measures and displays voltage, current, and frequency, and shows alarm values on the front screen when the set voltage and frequency values fall outside the specified range, activating each alarm relay. It has communication capabilities. - Voltage/Current Display LCD: Indicates voltage or current - Displays setting items during configuration - Indicator LED: Lights up when the values on each display LCD are outside the limit setting range - High: Red LED - Low: Blue LED - Frequency Display LCD: Indicates frequency - Displays setting items during configuration - SET button: Starts and saves settings - ▲ button: Changes values during settings, cancels alarms For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This is a device that re-outputs the insulated WP (power signal) and EOI (demand time limit end signal) after receiving them from the power meter. - Power/Energy LED: W - Average Power Display / Wh - Leakage Energy Display - Signal LED - WP: Metering Pulse Input Status Display - EOI: Time Limit Pulse Input Status Display - COMM: Transmission Signal Display when connected via 485 communication - SET Button: Enters setting mode when pressed for 3 seconds - FND Display LCD: 6-Digit Display LCD - Displays Power and Energy - Displays set values when in setting mode - Unit Display LED: Automatically lights up according to the unit (kW, kWh, MW, MWh) - Direction Button: Changes display items in general mode (W: Average Power / Wh: Cumulative Energy) - Changes set values in setting mode Features - Displays expected power and energy based on user-requested time (1 minute, 5 minutes, 10 minutes, 15 minutes, 30 minutes, 60 minutes) - Can connect to our company’s or other companies’ demand and EMS devices without separate certification - Remote monitoring is possible using RS-485 communication (MODBUS-RTU) For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This device measures and displays the current flowing through the secondary grounding wire of the transformer, and when it exceeds the set value, it can prevent accidents in advance through an alarm sound and relay. Features - Economical price - RS-485 communication For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This device measures and displays the current flowing through the secondary grounding line of a transformer, and when the value exceeds the set limit, it can prevent accidents in advance through an alarm sound and relay. Features: - Displayed as waveform and vector - Measurement of lg, lgr, and lgc currents - Ability to identify leakage phases - RS-485 communication For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

- Leakage Current Alarm Function Used to prevent leakage accidents in circuits, it connects with up to 16 zero-phase current transformers to measure current. When the current value exceeds the set threshold, it generates an alarm signal and sound. - Measurement Function Measures necessary electrical safety management parameters including line-to-line voltage, phase voltage, current, leakage current, active power, reactive power, apparent power, power factor, frequency, active energy, reactive energy, temperature (1CH), and phase. - Circuit Breaker Status Display and Control Function Receives input from circuit breaker status contacts to display the status with LEDs and generates relay contact output for circuit breaker control purposes. For inquiries, please contact "lightstar_1979@yahoo.co.jp". Power Multimeter

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

It is designed to be installed on a wire route under 600V AC, allowing the primary side of the current transformer to carry the total circuit current, with the vector sum of the currents output on the secondary side. The output current value is measured at the input of the leakage alarm receiver. Features: - The shape of the lower section of the penetration is designed to be flat to minimize the curvature of the penetrating wire. - The height of the penetration section is designed to be 45mm, taking into account the duct height of 40mm. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

It is designed to be installed on power lines under 600V, allowing the primary side of the current transformer to carry the total circuit current, with the vector sum of the currents output on the secondary side. The output current value is measured at the input of the leakage alarm receiver. Features: - Designed with dimensions categorized by the type of applicable circuit breakers, optimizing space utilization. - The structure is designed so that the plastic surface does not touch the busbar after assembly, minimizing thermal deformation during busbar overheating. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This device is installed on power lines below 600V, allowing the primary side of the current transformer to carry the total circuit current, with the vector sum of the currents output on the secondary side. The output current value is measured at the input of the leakage current alarm receiver. Features: - The shape of the lower section of the penetration is designed to be flat to minimize the curvature of the passing wire. - The height of the penetration section is designed to be 45mm, considering the duct height of 40mm. This product is a ZCT for SGR. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This device is designed to be installed on power lines below 600V, allowing the primary side of the current transformer to carry the total circuit current, with the vector sum of the currents output on the secondary side. The output current value is measured at the input of the leakage alarm receiver. Features: - Designed with dimensions categorized by the type of applicable circuit breaker, optimizing space utilization. - Constructed to ensure that the plastic surface does not contact the busbar after assembly, minimizing thermal deformation during busbar overheating. This product is a ZCT for SGR. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This product measures single-phase or three-phase circuits and displays waveform/phase/harmonics as graphical data, as well as numerical data for voltage/current/power factor/frequency/reactive and active power/energy on a tablet PC connected via Bluetooth. Features: - Convenient measurement of three-phase voltage and current, power, and power factor (however, current measurement is done sequentially for each phase using one clamp) - Transmits data to an Android smart analyzer for storage/display, allowing for high-resolution waveform, phase, and harmonic analysis - Up to 5 hours of use on a full charge, utilizing a lithium battery - Portable design for easy use/carry/mobility, offering a high price-to-performance ratio - Recording function and report format output program feature Smart Power Analyzer For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This is a device integrated with a standard current transformer (CT) or voltage transformer for testing the ratio error and phase angle of measuring instruments, along with a test load, error meter, etc., equipped with a testing program for data storage and automatic testing (linked with a PC). Features: - Inspection data transmitted to PC via error meter communication program - Built-in standard CT (5A, 1A) and load box (PF 0.8, 5A, 1A) - Price-performance ratio: Easy wiring during installation due to integrated design, reducing inspection time - Safety device installation: Current relay prevents component burnout for step and overload protection CT Tester For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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• Substation equipment
• Power distribution and control panels

This is a device equipped with measurement capabilities for the ratio error and phase angle of current transformers or voltage transformers, as well as communication functions. Features: - Standard CT/PT ratio error (%) and phase angle (min) error correction value can be set - Inspection data can be transmitted to a PC via communication program Transformer Error Meter For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Power distribution and control panels
• Substation equipment

This product is a measuring instrument designed to inspect the electrical characteristics of single-phase electrical products, capable of simultaneously displaying three measurement values: voltage, current, power, and power factor. It is equipped with a limit setting switch that alerts externally via contacts or alarm signals when the set values are not met or exceeded. Features: - Built-in fuse (excluding KZT-1) to prevent internal losses due to excessive current - Arbitrary setting of judgment time to exclude defects based on judgment timing - Capable of applying various loads due to its effective value measurement method - Selection between external input and internal current detection methods for judgment - Notification of results after judgment via contacts or alarm signals - Simultaneous digital display of the fundamental properties of electrical appliances: V, A, W, PF - The limit setting section indicates the pass/fail judgment of the product being tested through alarm sounds and contact signals, making it easy for anyone to confirm. It also allows for the recorded measurement data to be saved by connecting to a computer. Portable Power Tester For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
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• Power distribution and control panels

It is a standard correction device with high output (60VA) that precisely generates AC voltage from 3V to 720V or AC current from 5mA to 60A, suitable for instrument production lines and used for calibration tests, allowing general control and schedule control via PC using MMI. Functions: - Precision: AC voltage - Current (50/60Hz) Accuracy ±0.1% - Wide range generation: AC voltage output from 3V to 720V and AC current from 50mA to 60A, enabling calibration of AC instruments - Frequency: Common frequencies of 50, 60Hz, adjustable from 44 to 70Hz with a resolution of 0.01Hz - Output division function: Easily achieve arbitrary divided outputs up to 20 parts by simply turning the digital output division dial for the instrument's maximum scale value - Deviation direct reading: When testing the maximum scale and each scale of the instrument, the deviation at the test point is displayed as a percentage value relative to the maximum scale value - Sweep: Continuously increase or decrease the set output value from 0 to 120% at a constant speed - Third harmonic output: Control the third harmonic content from 0 to 30% with a single switch dial AC Calibrator For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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With a single-phase 220V input, it is possible to set the phase of three-phase voltage and current for the calibration and correction of instruments and power converters, as well as for the operation testing of relays, using equipment suitable for on-site training based on AC circuit theory. Features: - Generates three-phase power (A, V, W, Hz, PF) using a single-phase auxiliary power supply - Automatic output standby in case of operational errors such as miswiring - PC remote control function - Individual phase adjustment for three-phase - Real-time output value variation using a keypad 3Phase Power Calibrator For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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The high-voltage MOF is used to measure the ratio error between primary and secondary currents while energized, and it has a function for determining the phase alignment between the primary and secondary currents, which helps reduce inspection time. Features: - Primary current detection unit: Wirelessly transmits the current value from the primary line (high voltage). The error range is minimized in three stages based on the current magnitude: 4A/40A/200A. - Secondary current detection unit: A device that transmits current to the main unit via wired connection, always set to a measurement range of 4A, with three units that can simultaneously connect R phase (yellow), S phase (brown), and T phase (black). - Main unit: Utilizes the primary/secondary current detection units to collect data, synchronize time, and perform calculations. Based on the results, it alerts the user to the presence or absence of issues with the MOF, allowing for the display, storage, and output of various data. Inspection data is presented in detailed values including measured values, ratio error values, C.T. ratios, etc., and can be stored for up to 10 entries. MOF Current Ratio Error Tester For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Substation equipment
• Power distribution and control panels

This device is designed to optimize the charging of 9 or 10 lead-acid batteries at 12V, installed in a power distribution panel. It consists of an outer box, rectifier, controller, reactor, transformer, numerous circuit breakers, electronic switches, input and output terminals, and other components. It receives input from a standard AC power source and outputs the necessary DC power to the batteries. The output DC electricity is distributed using multiple circuit breakers according to the customer's needs. Battery Charger For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Batteries and Capacitors
• Other Batteries
• Manufacturing Equipment

This is a device that converts AC three-phase power into DC for charging. (It can be used with KHB and reactor sets.) Features: - Equipped with DC voltage and DC current terminals for separate measurements - Built-in NVR (No Voltage Relay) - Mountable on a rack or shelf Rectifier For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• DC Power Supply
• Power generation equipment
• Power Equipment

This is a product supplied together with the rectifier (KHA) for setting, controlling, and displaying its status upon purchase. Features: - Charge and discharge current, voltage represented in a 10-hour graph - RS-485 communication support for remote monitoring - Automatic correction of charging voltage based on temperature Rectifier Controller For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other measuring instruments
• Information display device
• Substation equipment

During battery discharge, this device is used together with a charging device to lower the high voltage to an appropriate level for the protection of electrical facilities. Features: By adopting a switching circuit method for voltage drop, the usage time of the battery can be maintained for a longer duration compared to the existing relay and diode conversion methods. DC Dropper For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Other Batteries
• Batteries and Capacitors
• Power distribution and control panels

It is connected to a constant power supply and used as an auxiliary power source for manual tripping of the circuit breaker once during power outage of the receiving equipment, and during power supply, the circuit breaker is used with the auxiliary power source and measurement instrument power supply. Function: - Output: Refer to discharge graph - Capacitor capacity: 1000μF/160V (KHY-11) 2700μF/160V (KHY-12) - Rectification capacity: DC 10A/110V - Applicable standards: IEC60694/KSC4611 Condenser Trip Device For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Power distribution and control panels
• Power Equipment
• Substation equipment

It is connected to a constant power supply and used as an auxiliary power source for manual circuit breaker operation during power outages of the receiving equipment. It operates as a rectifier during power supply and turns the circuit breaker ON. The amount of charged electricity can be confirmed using a voltmeter. Function: - Output: Refer to discharge graph - Capacitor capacity: 6400μF/160V - Rectification capacity: DC 10A/110V - Applicable standards: IEC60694/KSC4611 Condenser Trip Device With Volt meter For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Substation equipment
• Power distribution and control panels
• Power generation equipment

This is a device that assists in ensuring a continuous power supply by automatically switching to the emergency power source during a power outage or voltage anomaly, with two power sources secured at all times. Features: - Measurement, timer, UVR, OVR functions - The front door-mounted design allows for easy monitoring of power supply status without opening the panel - Three lamps are attached to the controller, eliminating the need to add lamps to the panel - Four relay contacts allow users to activate lamps, buzzers, etc., based on the status of the main and emergency power sources, making it adaptable for various applications. Functions: - Settings: Rated values: rated voltage, automatic recovery availability, overvoltage, undervoltage, overvoltage detection time, undervoltage detection time, imbalance rate, imbalance detection time, switching operation delay time Notes: - An alarm will sound if neither the main nor emergency power is supplied - Do not install a PT for the source power Auto Transfer Switch Controller For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Substation equipment
• Power distribution and control panels
• DC Power Supply

This device protects the motor by measuring the current of the electric motor, detecting idling, overcurrent, and three-phase voltage imbalance, and displays the status with the following conditions: stopped (off) at the set current value, normal operation (yellow), overload operation (red), and low load operation (blue). Functions: - Input: AC current (CT exterior) - 16 channels (50A/20mA), input frequency - fixed at 60Hz - Output: Digital Output - 16 channels, Open Collector - 6~30V, under 100mA Display: 16 channels with 3-color LEDs, channel 2 digits, current value 3 digits - Setting buttons: three (SET, ▼, ▲) Dedicated current transformer: KBJ-25YE (our product) 16 Channel Current Limit Setting Device For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Substation equipment
• Power distribution and control panels
• Power Equipment

This device is designed to efficiently manage motors by linking the heater to the motor's operating state, and it also has an overcurrent protection function (OCR). Features: - Precise current measurement and overcurrent relay function - Cumulative operating time function based on operating current - Clear control display and the ability to check operating status from a distance - The heater turns OFF when the motor is RUN, and the heater turns ON when the motor is STOPPED - The motor and heater cannot be ON at the same time - Accepts external trip (alarm) signal input, enabling alarm operation (motor stop, alarm message display) Motor Controller For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Substation equipment
• Power distribution and control panels
• Power Equipment

When the current transformer secondary side is open, the internal magnetic flux may reach saturation, which can lead to insulation breakdown and noise generation. This device detects the opening of the current transformer secondary side and protects the transformer. Features: - Connected to the secondary side of the current transformer to monitor the voltage of each phase, activating the secondary side circuit of the corresponding phase when overvoltage exceeds the set value. - Two contacts for alarms when the current transformer secondary side is open. - Allows for optional testing of recovery and short-circuit for each phase through recovery and short-circuit buttons. Functions: - Determines the presence of an open circuit using an LED. - Sets voltage sensitivity with a digital value (4 levels). - Sets operating delay time with a digital value (1 to 10 seconds). - Allows manual short-circuit/normal recovery operation for each phase separately. - When the alarm is activated, it is possible to set whether the relay is in use (activated/not activated). Current Transformer Open Detector For inquiries, please contact "lightstar_1979@yahoo.co.jp".

• Substation equipment
• Power distribution and control panels
• DC Power Supply