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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
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
Power Rectifiers & Converters
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Aspiro rectifiers provide a nominal 48V output rated at 400W, 800W, or 1200W with efficiency up to 95%.● BLUEstreak offers 12V, 24V, and 48V rectifiers at a range of power levels from 1360W to 2000W.● Guardian rectifiers provide a nominal 48V output at 2000W, 2500W, or 2900W at efficiency up to 96%, while a 24V model is rated at 2000W. The family also includes a 1500W DC-DC converter with a 48VDC input and a 24VDC output, as well as a 60A solar PV converter (hybrid converter).● Radian offers 12V, 24V, and 48V rectifiers at a range of power levels from 600W to 1360W.● Sageon rectifiers include both 24V and 48V models rated from 440W to 2400W.
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Product
S Series Panel Meter
ST-645
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Standard Electric Works Co., Ltd
● DC up to 10A● 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. yellow scale plate.● Pointer：Tube or knife-type, color in black or red.
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Product
Schottky Mixer And Detector Diodes
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Majority carrier diodes formed by plating a layer of metal on a layer of doped semiconductor, which forms a rectifying junction.
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Product
Load Banks
EL08 Series
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*Rectifier Test 8kW*All of our Load Banks are continuously rated for Power and Current.
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Product
48V / 250 Amp Load
EL15-48M
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For Telecom Rectifier 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
Delta DC Rectifier Repair/Refurbishment
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Delta DC Rectifiers are used by original equipment manufacturers to build On-Site Sodium Hypochlorite Generator Systems. These power supplies are generally operated at full load for 24/7 operations at high temperatures. Hence, these power supplies must be extremely rugged and must be de-rated significantly to achieve long operating life.
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Product
Hall Effect Proximity Switches/Sensors
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ChenYang Technologies GmbH & Co. KG
A Hall Effect proximity switch is a non-contact electronic switch, which consist of a permanent magnet or ferromagnetic part as trigger intermediary and a Hall Effect sensor IC. The Hall sensor IC detects the change of the magnet field when the permanent magnet comes in the close proximity to it and generates an electric signal. This signal is amplified and rectified to control the output signal of the switch.
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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
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
Industrial Standby Battery Monitoring Systems
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Batteries are the power storage medium for all Power Rectifier and UPS Systems. Modern Rectifiers and UPS control systems generally supply the user with only a summary of the condition of the associated power systems, however Battery Monitoring systems specifically measure, record and analyse the individual cell and battery module parameters in detail.
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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
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
AC-DC Rectifier / Converters
DC Converter
These following AC-DC converters all can provide 3.3/5/9/12/25/24/28/48V etc output. Newly acquired 2U rack mount 48V rectifier is a mature solution for 48V telecom systems.
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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
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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
Device Thermal Test Systems
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Thermal Engineering Associates, Inc.
Thermal test system combines the test and measurement capability of dedicated instruments with the ease of operation and data collecting capability offered by graphical-user-interface-driven software operating on an integrated computer.Diodes (PN, Schottky, LED, varactor, PIN), Stacked Diodes (Hi-V Rectifiers & LEDs), Laser Diodes, Transistors (Bipolar, MOSFET, IGBT) & Diodes, Integrated Circuits (Application & Thermal Test Die).
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Product
Turns Ratio Testers
TRT Standard Series
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When it comes to choosing a transformer turns ratio tester, TRT Standard series offers some of the most advanced instruments with LCD display out in the market. Each model measures transformer excitation current and phase shift performs automatic vector group detection and magnetic balance on three-phase transformers and three-phase autotransformers. Furthermore, they have a built-in true three-phase power source. Because of that, TRT Standard instruments 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 250 V AC, depending on the chosen model. High test voltage of 250 V AC provides more accurate turns ratio testing compared to other turns ratio testers on the market and extremely low test voltage of 1 V AC enables turns ratio verification of current transformers.TRT Standard series consists of:TRT03 Models (TRT03A, TRT03B, TRT03C) – single-phase voltage up to 100 VTRT3x Models (TRT30A, TRT30B, TRT30C, TRT33A, TRT33B, TRT33C) – single and true three-phase voltage up to 100 VTRT63 Models (TRT63A, TRT63B, TRT63C) – single and true three-phase voltage up to 250 VMore about models differences can be found under the downloads tab, in brochures and comparison sheets.A user can create test templates using the DV Win software and store them in the PC’s memory for later use when in the field.TRT Standard series models have a built-in tap changer control unit. Consequently, it enables remote control of an on-load tap changer (OLTC) directly from the tester. In order to make the most out of this feature, the DV-Win software 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.
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Product
Rectifier Assemblies for Crane Applications
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CEHCO manufactures Transformer Rectifier Assemblies for Crane Applications. We offer standard products and customized solutions.
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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
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
M Series Panel Meters
ST-86
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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
Bridge Decking Testing Equipment
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The testing process can detect blow holes, inclusions or thin areas in 'sprayed-type' membranes. Because the concrete contains a small amount of water, it is electrically conductive and a DC Pinhole Detector can be used to create a high voltage which is passed over the surface by the use of a brush electrode. An alarm will sound to identify any small defects which can be rectified so that the integrity of the coating can be verified.
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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
CORROSION GAUGE
MVX
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The MVX finishes the line of MX gauges with class. This thing is loaded with all of the features of the MX gauges and a lot more. Four selectable display options: RF, Rectified, B-Scan, and Large Digits. An internal data logger that stores a total of 12,000 readings and waveforms, 64 user custom definable setups, selectable transducer table for improved linearity, thru paint mode with the single press of a button, multiple calibration and material selection options, and auto waveform find just to mention a few! Equipped with a single element flaw prove-up mode for basic angle beam inspections. This is all nicely packaged in a very mini portable aluminum extrusion for extra durability and portability! The MVXview java-based PC software makes this thing a complete kit, and then some!
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Product
Quasi Square Wave Constant Voltage Transformers
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Osborne Quasi Square Wave Constant Voltage Transformers are used to regulate output voltages for applications that have varying input voltages. When used with a rectifier conversion circuit, these units provide an elegant design approach to voltage regulation. Osborne achieves this innovative approach by partnering the constant voltage transformer with an auxiliary resonant capacitor winding. The result is a unique (though time honored) technology that offers reliability, performance, and cost advantages over other styles of voltage regulation.
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Product
ARINC 818 Analyser
Protocol Analyzer
iWave’s ARINC 818 Video Protocol Analyzer (VPA) instantly verifies the ADVB Packets against ARINC818 Standards. ARINC818 VPA software efficiently captures, decodes the ADVB data, and displays the ADVB data, raw video data, and error status. It is an excellent troubleshooting tool that helps to quickly detect and rectify errors in the ARINC 818-2 applications, simultaneously ensuring compliance of the system with the ARINC 818-2 standards.
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Product
S Series Panel Meter
ST-670
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Standard Electric Works Co., Ltd
● DC up to 50A● AC up to 30A● 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 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
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.
