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

KBF is our company's pride in three-phase CT. In fact, it is the most popular model among the types of CT we offer. It has three square windows of the same basic size, and the size of the CT has diversified to match the size of the circuit breaker. Our company has been developing three-phase CTs for the past ten years, which has led to the popularity of three-phase CTs in the domestic market as well. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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This is an instrument designed to measure and display various electrical system parameters and power quality, allowing the measured data to be monitored remotely using RS-485 or LAN communication. It measures phase voltage, current, line-to-line voltage, active power, reactive power, apparent power, power factor, frequency, active energy, and reactive energy, with the capability to add DI/DO/temperature and leakage current measurement functions. With its various features, it is an electrical measuring instrument that can be used in diverse environments. For inquiries, please contact "lightstar_1979@yahoo.co.jp". Power Multimeter

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KBJ is our current transformer for electric wires. We have developed eight different types to allow installation in various conditions within the panel. Each product has a different inner diameter measurement, so you can choose according to the situation. The allowable current range is also wide. Currently, this product is exported worldwide, including to Japan, Vietnam, and the United States. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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The "KA□-45" is a guideline-type analog meter. You can choose from options such as alternating current, direct current, alternating voltage, and direct voltage, so you can place an order according to your preferences. *For more details, please refer to the PDF document or feel free to contact us. For inquiries, please email "lightstar_1979@yahoo.co.jp".

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This is a measuring instrument for measuring alternating current. It also has a communication (RS-485) function as an option. It is simple but has been a popular product that has been ordered for a long time. It is an alternating current ammeter that can be used by directly setting the CT ratio. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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This is a measuring instrument for measuring alternating current voltage. It also has a communication (RS-485) function as an option. It is simple but has been a popular product that has been ordered for a long time. Additionally, this product is an alternating current voltmeter that can be used with a directly set PT ratio. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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This is a meter that measures and displays the phase voltage, current, active power, reactive power, power factor, frequency, active energy, and reactive energy of the distribution board, and enables remote power monitoring via RS-485 communication. Features: The measurement elements are displayed through three LEDs, and with just one button press, you can select and display the three-phase voltage, current, active power, reactive power, power factor, frequency, active energy, and reactive energy. The primary values of CT and PT can be set arbitrarily. Line-to-line voltage can be used without PT up to a maximum of 500V. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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The "KA□-50" is a guideline-type analog meter. You can choose from options such as alternating current, direct current, alternating voltage, and direct voltage, allowing you to place an order according to your preferences. *For more details, please refer to the PDF materials or feel free to contact us. For inquiries, please reach out to "lightstar_1979@yahoo.co.jp".

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This instrument measures and displays the line-to-line voltage of two lines and the current of two lines as a power factor rate adjuster, and it has contacts to control external capacitors based on the initially set values. Its features are as follows: When the line-to-line voltage and current differ from the standard connection, it automatically or manually searches for the correct phase to indicate the correct power factor. It allows for easy operation to specify various voltage and current ratios. It sets the active and reactive power of the receiving and distribution board transformer to control the power factor during nighttime hours. It sets the power factor neutral zone to control the M/C operation. With settings for over/under voltage, target power factor during daytime/nighttime, and capacitor capacity, safe and efficient control is possible. (KCP-SM) It displays the power factor transformer and capacitor connection time. (KCP-SM) For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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This is a measuring instrument for measuring direct current. It also has a communication (RS-485) function among the options. It is simple but has been a popular product that has been ordered for a long time. This product is a direct current ammeter that can be used with a directly set shunt ratio. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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This is a measuring instrument for measuring direct current voltage. It also has a communication (RS-485) function as an option. It is simple but has been a popular product that has been ordered for a long time. This product is a direct current voltmeter that can be used by directly setting the voltage. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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KBD is a three-phase CT that our company takes pride in. It has three holes of the same basic size, and the size of the CT has diversified to match the size of the electrical wires. Our company has been developing three-phase CTs for the past ten years, and as a result of our influence, three-phase CTs have become popular in the domestic market. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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This is a product that assists in managing harmonics on-site. It displays data comparing previous and current states through harmonic limit settings and data storage related to input current. When the limit values for each order are exceeded, it automatically notifies or outputs control signals. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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The "KA□-60" is a guideline-type analog meter. You can choose from options such as alternating current, direct current, alternating voltage, and direct voltage, allowing you to place an order according to your preferences. *For more details, please refer to the PDF document or feel free to contact us. For inquiries, please reach out to "lightstar_1979@yahoo.co.jp".

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The "KA□-68" is a guideline-type analog meter. You can choose from options such as alternating current, direct current, alternating voltage, and direct voltage, allowing you to place an order according to your preferences. *For more details, please refer to the PDF document or feel free to contact us. For inquiries, please use "lightstar_1979@yahoo.co.jp".

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The "KA□-72" is a guideline-type analog meter. You can choose from options such as alternating current, direct current, alternating voltage, and direct voltage, allowing you to place an order according to your preferences. *For more details, please refer to the PDF materials or feel free to contact us. For inquiries, please email "lightstar_1979@yahoo.co.jp".

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KBC is our split-type CT. What differentiates it from our other CTs is its ability to be split. Since it can separate the top and bottom, it makes connecting with wires and busbars easier. There are two types each for wires and busbars, allowing for use according to your preferences. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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The "KA□-80" is a guideline-type analog meter. You can choose from options such as alternating current, direct current, alternating voltage, and direct voltage, allowing you to place an order according to your preferences. *For more details, please refer to the PDF document or feel free to contact us. For inquiries, please reach out to "lightstar_1979@yahoo.co.jp".

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The "KA□-81" is a guideline-type analog meter. You can choose from options such as alternating current, direct current, alternating voltage, and direct voltage, so you can place an order according to your preferences. *For more details, please refer to the PDF document or feel free to contact us. For inquiries, please email "lightstar_1979@yahoo.co.jp".

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The "KA□-08" is a pointer-type analog meter. You can choose from options such as alternating current, direct current, alternating voltage, and direct voltage, allowing you to place an order according to your preferences. The 08 type has the same size as the 80 type, but the shape of the indicator is round instead of square. *For more details, please refer to the PDF document or feel free to contact us. For inquiries, please reach out to "lightstar_1979@yahoo.co.jp".

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The "KA□-08N" is a pointer-type analog meter. You can choose from options such as alternating current, direct current, alternating voltage, and direct voltage, allowing you to place an order according to your preferences. The 08N type is almost the same as the 08, but the part where the reading is displayed is square instead of round. *For more details, please refer to the PDF document or feel free to contact us. For inquiries, please reach out to "lightstar_1979@yahoo.co.jp".

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The "KA□-11" is a guideline-type analog meter. You can choose from options such as alternating current, direct current, alternating voltage, and direct voltage, allowing you to place an order according to your preferences. The 11 type has a larger size compared to the 08 type. *For more details, please refer to the PDF document or feel free to contact us. For inquiries, please reach out to "lightstar_1979@yahoo.co.jp".

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The "KAM-11A/11B" is a guideline-type analog meter. You can choose between alternating current and alternating voltage, so you can place an order according to your preferences. It is the same size as the KA□-11. *For more details, please refer to the PDF materials or feel free to contact us. For inquiries, please email "lightstar_1979@yahoo.co.jp".

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The "KAK-11AB/08AB" is a pointer-type analog meter. You can choose between alternating current and alternating voltage, so you can place an order according to your preferences. The KAK-11 is the same size as KA□-11, and the KAK-08 is the same size as KA□-08. *For more details, please refer to the PDF materials or feel free to contact us. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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"KAG-□" is a pointer-type analog meter. It is an instrument that indicates power. KAG comes in two sizes: KAG-11 and KAG-08. KAG-11 is the same size as KA□-11, and KAG-08 is the same size as KA□-08. *For more details, please refer to the PDF document or feel free to contact us. For inquiries, please email "lightstar_1979@yahoo.co.jp".

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KAI-□" is a guideline-type analog meter. It is an instrument that indicates reactive power. KAI comes in two sizes: KAI-11 and KAI-08. KAI-11 is the same size as KA□-11, and KAI-08 is the same size as KA□-08. *For more details, please refer to the PDF document or feel free to contact us. For inquiries, please reach out to "lightstar_1979@yahoo.co.jp.

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KAH-□□" is a guideline-type analog meter. It is an instrument for measuring power factor. KAH comes in two types: balanced power factor meter and unbalanced power factor meter. KAH has two sizes: KAH-11 and KAH-08. The balanced type is designated as KAH-□B, while the unbalanced type is designated as KAH-□U. The sizes are also 11 and 08. KAH-11 is the same size as KA□-11, and KAH-08 is the same size as KA□-08. *For more details, please refer to the PDF document or feel free to contact us. For inquiries, please reach out to "lightstar_1979@yahoo.co.jp.

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The "KAR-□80□" is a pointer-type analog meter. The meter relay consists of a detection part, an indication part, an amplification part, and a relay part. A combination of a light-emitting diode and a phototransistor is applied in the detection part to utilize a non-contact method. Since there are no contact parts when the pointer passes, it is not affected by external vibrations or shocks, and stable operation is possible using highly reliable electronic circuit components. Features: - High quality, high performance - Built-in protection circuit, simplified sequence circuit - The front screen is thin, transparent, and made of PC material - Compatible with 100~240V usage - Output contact capacity is AC 220V/1A, DC 30V/1A - Surge protection circuit to prevent damage in case of incorrect polarity wiring from the relay control power circuit - Impulse noise prevention circuit applied *For more details, please refer to the PDF materials or feel free to contact us. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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The "KAJ-11□□□" is a pointer-type analog meter. It has been equipped with a lighting function for measuring ordinary electrical elements. The KAJ-11 can also be categorized into KAJ-11□□A, KAJ-11□□C, and KAJ-11□□L depending on the type of auxiliary power supply. KAJ-11□□A and KAJ-11□□C use ELP (emission sheet) as the lighting method, while KAJ-11□□L uses an LED lamp. The size is 11, the same as KA□-11. *For more details, please refer to the PDF document or feel free to contact us. For inquiries, please email "lightstar_1979@yahoo.co.jp".

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KA□-□D□" is a pointer-type analog meter. It features a red pointer attached to a device that measures ordinary electrical elements. The setting pointer on the front can rotate left and right, making it easy to detect normal operating conditions. There are nine different sizes ranging from 50 to 11. *For more details, please refer to the PDF document or feel free to contact us. For inquiries, please email "lightstar_1979@yahoo.co.jp.

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The "KAS-80□□" is a guideline-type analog meter. It measures alternating current and alternating voltage in a three-phase circuit. The size is the same as KA□-80. *For more details, please refer to the PDF document or feel free to contact us. For inquiries, please email "lightstar_1979@yahoo.co.jp".

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KBM is our busbar type CT and is a product compatible with circuit breakers (CB). The primary current range is from 50 to 1600, making it widely usable. The KBM series has diversified the size of the CT to match the size of the circuit breakers. Therefore, it is a recommended product for those who are unsure about choosing a CT based on the circuit breaker. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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KBM is our busbar-type CT, particularly suitable for air circuit breakers (ACB). The range of primary current is very broad, from 100 to 12,000, allowing for versatile use. The KBM series has diversified the size of the CT to match the size of the circuit breaker. It offers more varieties than busbar CTs for circuit breakers, making it a versatile product that can be used in various situations. By installing three units, it can also function like a three-phase CT. For the KBM-03 and KBM-25 models, production will continue until this year, and it is scheduled to be discontinued next year. However, new products KBM-13 and KBM-16 have been released, so the total number of varieties remains at nine. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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The KBK-08 is slightly different from our other CTs. While other CTs pass the wires or busbars directly through the product, this product is mounted with bolts. Additionally, the KBK-08 is a qualified item for bidding with Korea Electric Power (standard items). For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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The KBK-□ is our company's direct mounting current transformer. This is not a type that goes through wires or busbars, but a product designed for direct mounting. There are three shapes available, and five different sizes. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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The KBA-30 is our Rogowski coil. The welding current flows at a high current (approximately 100A to 50KA) for a short duration (0.001 seconds to 0.5 seconds), so its waveform appears in various forms and cannot be measured with a standard ammeter. However, the Rogowski coil can measure high currents without saturating, as it is air-cored. However, when measuring power and power factor, it is necessary to convert the phase shift from 90° to 0° using an integrator (OP-AMP). For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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KBN is our discharge coil. It is connected in parallel with a large-capacity three-phase capacitor installed for automatic power factor compensation of the receiving equipment. After the capacitor is turned off, it discharges the residual charge in a short time, reducing charge collisions when the capacitor is turned on/off, thereby protecting nearby electrical equipment. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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KB□-□□ is our company's transformer. It is a transformer applicable for 220 to 460V. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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KBT-□□ is our transformer (PT). It is a transformer applicable from 220 to 460V. One of its features is that it is categorized into four sizes based on rated load (VA) among KBT models. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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KBO-□□ is our company's transformer (PT). The primary voltage can be applied from 220 to 440V and can be converted to 110V or 220V. It has a built-in fuse for product protection. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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KBV-□ is our pressure regulator. It can convert 300V to 3000V at DC 1mA or 4-20mA. It is composed of a simple resistance combination, so there is no insulation between input and output. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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KBG-□□□ is our indoor 1.15 kV transformer (PT). The primary voltage is 380/√3V or 440/√3V. It is used for zero-sequence voltage detection (tertiary) during faults in ungrounded lines. This product is a single-phase transformer, and three units are combined for use, with the connection method being Y connection for primary and secondary, and broken delta connection for tertiary. When the bus voltage is applied to the primary side, the secondary side is used for relaying and measurement, while the tertiary side can be used for zero-sequence voltage detection. On the tertiary side, zero-sequence voltage meters, OVGR (overvoltage ground relay), ground fault confirmation lamps, CLR, SGR, DGR, etc., can be connected for use. For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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KBL-□□ is our current-limiting resistor. The current-limiting resistor (CLR) installed on the tertiary side of the grounded instrument transformer is necessary when using the selective ground fault relay (SGR) and the directional ground fault relay (DGR). It generates the active power required to operate the SGR and DGR, absorbs the third harmonic generated by the GPT tertiary broken delta connection circuit, and suppresses abnormal neutral point conditions, potential oscillations, and neutral point instability phenomena in ungrounded circuits.

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KBY-□ is our company's shunt. A shunt, in other words, is used to measure the current in a direct current circuit. When the current in the circuit exceeds the rated value of the ammeter, a parallel circuit is created with the ammeter to divert the current for measurement. The circuit (resistor) that diverts the current in this way is called a shunt. The rated current display value of the shunt indicates the maximum current that can be measured, while the rated voltage drop value refers to the voltage drop between the output terminals when the maximum current flows through the shunt. This varies according to the specifications of the measuring instrument, primarily being 50 mV or 60 mV. The grade of the shunt is classified based on the allowable limit after passing 80% of the rated current for 15 minutes, with categories of 0.5% and 1.0%.

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The receiving indicator is a measuring instrument that indicates various elements in addition to current and voltage. The input can be selected from alternating current, alternating voltage, direct current, or direct voltage. The display units are as follows: 1: Power 2: Temperature 3: Voltage 4: Current 5: Frequency 6: Distance 7: Pressure 8: Ratio or percentage (power factor) 9: Speed 10: Mass 11: Rotational speed For inquiries, please contact "lightstar_1979@yahoo.co.jp".

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