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Product
F Series Panel Meter
ST-70U (Four studs mounting)
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Standard Electric Works Co., Ltd
● Hz Meter : Measuring Ranges : 45~56 Hz, 45~55 Hz, 55~65 Hz Rated Voltage : 110V, 220V Accuracy : Class 2.0 Consumption : Max. 15mA Test Voltage : 2kV. 50-60 Hz● Case and Composition: Polycarbonate front and Polybutylene Terephthalate(PBT). Three studs mounting.● Accuracy : AC class 2.5 DC class 2.0 Rectifier class 2.0● Color：Black case and white scale plate.● Pointer：Sword type color in black.
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Product
110V / 90 Amp Load
EL12-110M
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For Telecom Rectifier and Power Supply testing. This particular Load has been designed to operate with Telecom 110V Rectifiers and Power Supplies with output Voltages in the range of 100V to 135V and is extremely cost effective.
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Product
Schottky Mixer and Detector Diodes
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Macom Technology Solutions Holdings Inc.
Schottky diodes are majority carrier diodes formed by plating a layer of metal on a layer of doped semiconductor, which forms a rectifying junction. The type of metal and the type of dopant in the semiconductor determines the diode’s barrier height, which is a measure of the amount of energy required to force the diode into forward conduction. MACOM produces Si Schottky diodes as well as GaAs Schottky diodes for use as signal detectors or in frequency mixers.
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Product
4kW Electronic Load
PT04-110
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For Telecom Rectifier and Power Supply testing. This model has been developed to accommodate testing of both 110V and 48V telecommunications power systems or Power Supplies. It is also useful as a general-purpose variable Load. Its founding principle is simplicity – ease of use, enhanced reliability, greater value for money and wider applicability.
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Product
48V / 200 Amp Load
EL12-48M
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For Battery Discharge testing and Power Supply testing. This particular Load has been designed to operate with Telecom 48V Rectifiers and Power Supplies with output Voltages in the range of 38V to 60V and is extremely costeffective.
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Product
Power Discrete Tester
Mostrak-2
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M2 test system has multiple test generators which cover static and dynamic test procedures. It is our first truly modular tester which allows for the system to be upgraded and expanded when needed. M2 are designed to get the tester as close as possible to the handler interface and operator at the highest possible speeds. M2 is capable of HV (3 kV) and LV (600A) testing and has dynamic switching capabilities up to 1200V. MOSTRAK systems can test the following device types: MOSFET, IGBT, Bipolar transistor, Diode - rectifiers, Thyristor (SCR) - Triac, Linear voltage regulator (VReg), Transient voltage suppressor (TVS).
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Product
Sound Source Localization
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In order to optimize product sounds, it is necessary to know the exact point of origin of a sound source. This makes possible to identify the cause of disruptive sound components and rectify these effectively, optimize sound radiation and thereby achieve the desired sound experience. The ease of use and advanced beamforming algorithms of the HEAD VISOR acoustic camera allow sound sources to be located precisely at the blink of an eye.
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Product
P Series Panel Meters
ST-80
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Standard Electric Works Co., Ltd
● DC up to 50A● AC up to 50A● Hz Meter : Measuring Ranges : 45~55 Hz, 45~65 Hz, 55~65 Hz Rated Voltage : 110V, 220V Accuracy : Class 2.0● Case and Composition: Acrylic resin front. Bakelite case. Four studs mounting.● Accuracy :DC : Class 2.0 AC : Class 2.5 Rectifier : Class 2.0● Color：Black case, white scale plate.● Pointer：Tube type, color in black or red.
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Product
LCL Filters
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LCL Type Harmonic Filter Modules are used to filter out the input current harmonics of the Motor Drives having six-pulse diode/thyristor rectifiers, where harmonic current distortion exceeds the limits defined in standards.
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Product
SparkFun Energy Harvester Breakout
LTC3588
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This breakout board uses the LTC3588 Piezoelectric Energy Harvester from Linear Technologies. This board can be used not only for harvesting piezoelectric energy, but solar energy as well. There is a bridge rectified input for piezo elements (PZ1 and PZ2) and a direct input (VIN) for DC sources. Both are clamped to 20V. In addition, the board can simply be used as a standalone nanopower buck regulator.
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Product
150KW AC/DC Rectifier Battery Charger
SD750250G
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Zhejiang Sandi Electric Co., Ltd
AC-DC Power Rectifier Battery Charger Customized for Lead Acid AGM Gel LiFePO4 Lithium Battery is for DC battery system charging station. With single-phase or 3 phase non neutral conductor AC input, it has the advantages of high efficiency, high power density and low harmonic. 50-750Vdc output voltage range optional, suitable for all types of batteries.
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Product
Rectifier Transformers
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Osborne’s Rectifier Transformers are used in conjunction with various rectification configurations to convert AC input to DC output(s). Key characteristics include regulation, transformer utilization and AC ripple. Osborne rectifier transformer designs are often engineered to operate in advanced rectifier circuit applications.
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Product
Analog Power Supply
Type NPS-2412
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National RF's Type NPS-2412 analog power supply was designed to be used in communication equipment where radiated switching inverter noise from conventional “switching type” supplies is not acceptable. The power supply consists of a standard rectified transformer output driving a pair of voltage regulators and filtering networks. The 2412 offers an adjustable voltage output between 2 and 24 volts as well as a fixed voltage output of 12 volts. A maximum of 20 Watts of DC power can be supplied from the unit. As the voltage regulators dissipate power in the regulation process, the power to the load is derated accordingly, dependent on the set voltage to the load. The adjustable regulator is a standard LM-317T integrated circuit device. The fixed regulator is a standard LM 7812 device. Upon customer request, the LM 7812 device may be changed to any voltage rating within the the LM-78xx series of regulators. Contact National RF for this modification if desired.
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Product
M Series Panel Meters
ST-118T
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Standard Electric Works Co., Ltd
M Series all up to 15A. Case and Composition：Acrylic resin front and ABS resin case. Four studs mounting.Accuracy：Moving coil type : Class 2.0. Rectifier type : Class 2.0. Color：Black case, white scale plate. Pointer：Tube type, color in black or red.
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Product
P Series Panel Meters
ST-45
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Standard Electric Works Co., Ltd
● DC up to 30A● AC up to 30A● Case and Composition: Acrylic resin front. Bakelite case. Four studs mounting.● Accuracy :DC : Class 2.0 AC : Class 2.5 Rectifier : Class 2.0● Color：Black case, white scale plate.● Pointer：Tube type, color in black or red.
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Product
P Series Panel Meters
ST-60
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Standard Electric Works Co., Ltd
● DC up to 30A● AC up to 30A● Case and Composition: Acrylic resin front. Bakelite case. ABS case. Four studs mounting.● Accuracy :DC : Class 2.0 AC : Class 2.5 Rectifier : Class 2.0● Color：Black case, white scale plate.● Pointer：Tube type, color in black or red.
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Product
Electronic Ballast Automatic Test Equipment
ATE-1
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Test series connection, parallel connection and series/parallel connections of the electronic ballast (about 15 kinds of connections), available for various electronic ballast. • With a precise resistance box, tube is substituted for the resistance, can act as many as 6 tubes. Resistance value: 1-4095Ω adjustable. • Measure input parameters (vrms, irms, w, pf, harmonics, etc), output parameters (on-circuit voltage, lamp voltage, filament voltage, lamp current, lamp power, oscillatory frequency), can also test the ballast efficiency, abnormity protection, and power symmetry of partial rectifier effect and etc. • Program controlled AC power source to guarantee the smart choice of input voltage and the frequency. • Equipped with 17 inch LCD controlled machine, specially designed A/D combined with special CPU, has the two left and right testing interfaces to achieve stability of data and high- speed testing. • We can make the special-designed product for you and promise to upgrade the software for free.
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Product
Static Inverters
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Our static inverters are designed as uninterruptible power supplies (inverter in conjunction with rectifier and battery) to bridge short-term interruptions, power failures, voltage fluctuations, frequency fluctuations or generally to compensate for power disturbances in the data processing sector and in automation and control systems. They are used to supply AC consumers, primarily in the rail and industrial sectors.
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Product
S Series Panel Meter
ST-670B
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Standard Electric Works Co., Ltd
● DC up to 50A● AC up to 30A● Case and Composition: Acrylic resin front and Bakelite case. Four studs mounting.● Accuracy : Moving coil type：Class 2.0 Moving lron type：Class 2.5 Rectifier : Class 2.0● Color：Black case. white scale plate.● Pointer：Tube or knife-type, color in black or red.
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Product
W Series Panel Meter
ST-100R
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Standard Electric Works Co., Ltd
● Accuracy : Moving Coil Type DC, Class 2.0 Moving Iron Type AC, Class 2.5 Rectifier Type AC, Class 2.0● Case and Composition : Acrylic resin front and bakelite case. Bevel mounting.● Color : Black case and white scale plate.● Pointer Shape：Tube type, color in black or red
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Product
S Series Panel Meter
ST-670R
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Standard Electric Works Co., Ltd
● DC up to 10A● Case and Composition: Acrylic resin front and Bakelite case Two studs mounting● Accuracy : Moving coil type：Class 2.0 Moving lron type：Class 2.5 Rectifier : Class 2.0● Color：Black case. white scale plate.● Pointer：Tube or knife-type, color in black or red.
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Product
460V / 18 Amp Load
EL08-460M
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For High Voltage UPS Battery Testing and Power Supply testing. This particular Load has been designed to operate with UPS Battery Systems and Telecom Rectifiers and Power Supplies with output Voltages in the range of 307V to 460V and is extremely cost effective.
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Product
P Series Panel Meters
ST-38
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Standard Electric Works Co., Ltd
● DC up to 15A● Case and Composition: Acrylic resin front. ABS case. Four studs mounting. Two studs mounting.● Accuracy :DC : Class 2.0 AC : Class 2.5 Rectifier : Class 2.0● Color：Black case, white scale plate.● Pointer：Tube type, color in black or red.
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Product
M Series Panel Meters
ST-115
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Standard Electric Works Co., Ltd
● M Series all up to 15A● Case and Composition：Acrylic resin front and ABS resin case. Four studs mounting. Two studs mounting.● Accuracy：Moving coil type : Class 2.0 Rectifier type : Class 2.0● Color：Black case, white scale plate.● Pointer：Tube type, color in black or red.
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Product
Turns Ratio Testers
TRT Advanced Series
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TRT Advanced series is the newest DV Power solution for transformer turns ratio measurement. Besides its main application, each turns ratio tester from this series also measures transformer excitation current and phase shift. Furthermore, all models perform automatic vector group detection and magnetic balance on three-phase transformers and three-phase autotransformers. They have a built-in true three-phase power source. For that reason, they can test transformers with special configurations, such as phase-shifting, rectifier, arc-furnace, traction transformers, etc.The instruments can output test voltages from 1 V AC to 500 V AC, depending on the model. With the highest test voltage 500 V AC, TRT500 provides the most accurate turns ratio testing of power transformers used in power generation and transmission. The output test voltage of TRT500 can be boosted to 5 kV AC using the external CVT20 extension transformer. This application is specially designed for testing turns ratio of capacitive voltage transformers. The other three models, TRT400, TRT250, and TRT100 can output up to 400 V, 250 V, and 170 V respectively. The low test voltage of 1 V AC enables turns ratio verification of current transformers.TRT500 is equipped with a large 10.1” graphical touch screen display. Other models, (TRT400, TRT250, TRT100) have 7” graphical touch screen display. Besides making the interface much more user-friendly compared to older turns ratio testers, it also brings certain options that were previously available only with DV-Win software. The most important are test templates and automatic test mode. Users can simply create test templates, store them in the instrument’s memory, and load when in the field with just a few clicks.This turns ratio test set, as well as all other DV Power turns ratio testers, has a built-in tap changer control unit. It enables remote control of an on-load tap changer (OLTC) directly from the instrument. In order to make the most out of this feature, the instrument can be programmed to do everything automatically – running turns ratio tests, changing OLTC tap positions, and saving results. This option, especially in combination with test templates, significantly facilitates and shortens the turns ratio testing time. Automatic test mode minimizes human errors, which makes the measurement more reliable.
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Product
S Series Panel Meter
ST-100
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Standard Electric Works Co., Ltd
● DC up to 50A● AC up to 50A● Case and Composition: Acrylic resin front and Bakelite case. Four studs mounting.● Accuracy : Moving coil type：Class 2.0 Moving lron type：Class 2.5 Rectifier : Class 2.0● Color：Black case. white scale plate.● Pointer：Tube or knife-type, color in black or red.
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Product
24V / 400 Amp Load
EL12-24M
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For Battery Discharge testing and Power Supply testing. This particular Load has been designed to operate with Telecom 48V Rectifiers and Power Supplies with output Voltages in the range of 38V to 60V and is extremely cost effective.
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Product
4kW Electronic Load
PT04-48
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For Telecom Rectifier and Power Supply testing. This model has been developed to accommodate testing of both 48V and 24V telecommunications power systems or Power Supplies. It is also useful as a general-purpose variable Load. Its founding principle is simplicity – ease of use, enhanced reliability, greater value for money and wider applicability.
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Product
AC-DC Rectifier Unit
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Supreme Instrument Laboratories
Continuously variable/manually variable D.C. Rectifier unit to be used in the Electrical Engineering Laboratories, with the following technical specifications
