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Voltage Sources

A precise voltage standard.

See Also: Voltage Current Sources


Showing results: 406 - 420 of 440 items found.

  • LED Test Programmable DC Electronic Load

    IT8912E Series - I-TECH Electronic Co., Ltd

    IT8900 series high accuracy LED specific testing electronic loads can simulate the real output of LED lights with different characteristics.Their specific circuit can realize CR-LED mode, adjustable frequency, duty ratio PWM dimming output port (frequency: 20Hz-2KHz), I-pp/I-max measurement function can test current ripple and start up surge current of LED constant flow source. Voltage and current testing speed can reach 50KHz. IT8900 series provides CR-LED / CC / CV + CC / CR /CW and other working modes, built-in USB / RS232 / GPIB communication interface. Widely used in LED driver power dimming test.

  • RF Conducted Immunity Test System

    RFCI61000-4-6 - Lisun Electronics Inc.

    RFCI61000-4-6 RF Conducted Immunity Test System is an automatic test system which is for the conduction sensitivity testing, it is fully meets IEC61000-4-6.2006, ISO11452-4, GB/T17626.6-2008 and GTB152B-CS114 etc standards. RFCI61000-4-6 internal source and broadband power amplifier can be generated 3 voltage test levels: 1v, 3v and 10v, and has the function of the real detect output level. It has two operation software which is calibration software and test software. When measuring, the signal is in 1 KHZ sine wave amplitude modulation system (80%) to simulate the actual harassment, and can through the coupling/decoupling network (CDN or electromagnetic clamp) to make the harassment signal coupled to the device.

  • Earth Contact Resistance Tester

    SCR ELEKTRONIKS

    SCR ELEKTRONIKS have developed an equipment namely Earth Contact Resistance Tester to test the appliance. To ensure the safety of operator it is essential that the Earth path (connection) should offer minimum impedance to by pass short circuit Current to Earth. This is ensured by measuring Resistance of the Earth path by passing heavy Current say 25 A. The Earth Contact Resistance Tester essentially comprises of a Variable Current source with digital Ammeter to measure the Current supplied. The Voltage drop across the Earth path is measured with a digital Voltmeter. Optionally for a particular Current (25 A) the meter can be calibrated in terms of Resistance. A timer is provided to switch off the Current after the Set Time.

  • Interface for Two Dual Redundant 1760 Channels

    EXC-1553ExCard/Px-1760 - Excalibur Systems, Inc.

    This credit card sized interface supports up to two dual redundant 1760 channels and is compatible with all common variations of MIL-STD-1760 providing a wide range of features normally found only on full size testers.Multi FunctionEach channel of the EXC-1553ExCard/Px-1760 operates simultaneously as a Bus controller and/or multiple (up to 32) Remote Terminals, or as a Triggerable Bus Monitor. The card supports error injection and detection. The card’s small size and compatibility with notebook computers make it the perfect solution for performing system simulation of the MIL-STD-1760 bus, in the lab and in the field. Single Function Each channel of the EXC-1553ExCard/PxS-1760 operates either as a Bus Controller, Remote Terminal, or Bus Monitor.The EXC-1553ExCard/Px-1760 and EXC-1553ExCard/PxS-1760 cards are supplied with C drivers, including source code, Merlin+ Windows software and may be used with Exalt, Excalibur’s Analysis and Laboratory Tools, a Windows monitoring application.Note: Some laptops do not supply the average and peak power voltages required by the ExpressCard specification. The EXC-1553ExCard/Px-1760 may not function properly in these laptops.

  • AC Power Source

    6500 series - Chroma ATE Inc.

    The global AC power testing requirements demand more sophisticated AC Power Source that is capable of simulating a wide variety of AC line conditions, harmonic waveforms, accurate power measurement and analysis. The Chroma 6500 series Programmable AC Power Source delivers the right solution to simulate all kinds of normal/abnormal input conditions and measure the critical characteristics of the product under test. It can be used for R&D design characterization, production testing, and QA verification of commercial, industrial, and aerospace electronic products. The Chroma 6500 series delivers maximum rated power for any output voltage up to 300 Vac, and at any frequency between 15Hz to 2000Hz. It is suitable for commercial applications (47-63Hz); for avionics,marine, military applications at 400Hz or higher frequency; or for electrical motor, air-conditioner test applications at 20Hz. All models generate very clean sine or square waveforms output with typical distortion less than 0.5%. The Chroma 6500 series has built-in Direct Digital Synthesis (DDS) Waveform Generator to provide user programmable high precision waveform. For testing products under AC line distortion conditions, clipped sinewave can be generated with 0% to 43% distortion and amplitude from 0% to 100%. It also can simulate all kinds of power line disturbances such as cycle dropout, transient spike, brown out, phase angle, voltage and frequency ramp up (ramp down), etc.. Up to 30 harmonic waveforms are factory installed, and testing for compliance to AC line harmonic immunity standards can be easily achieved in the field.

  • Turns Ratio Testers

    TRT Standard Series - IBEKO Power AB

    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.

  • Solar Array Simulator

    LXinstruments GmbH

    Among other things, solar array simulators are required for testing satellite power supplies. An SAS (Solar Array Simulator), consisting of an interconnection of several Solar Array Simulator modules, maps the solar panels and displays the individual strings connected in parallel. Optionally, the individual SAS modules are monitored by a Second Level Protection, so that the test object is not damaged in case of errors with the voltage sources. Additional circuitry is implemented via project-specific test modules. The signal path to the DUT can be separated, e.g. for dynamic current measurements.The Keysight Solar Array Simulators used were specially developed for satellite applications and cover the significantly higher requirements regarding the control speed of MPP tracking compared to terrestrial applications.

  • Transformer Turns Ratio Testers

    IBEKO Power AB

    Transformer turns ratio testers from TRT series are DV Power instruments mainly designed for the measurement of power transformer turns ratio. Also, they measure transformer excitation current and phase shift. Special tests, such as automatic vector group detection and magnetic balance, can be performed on three-phase transformers and three-phase autotransformers.All models, except TRT03 series, have a built-in true three-phase power source, which is necessary for testing turns ratio of transformers with special configurations, such as phase-shifting, rectifier, arc-furnace, traction transformers, etc.DV Power turns ratio testers can output various test voltages for different applications. From the extremely low test voltage of 1 V AC that enables turns ratio verification of the majority of current transformers, up to the highest test voltage of 500 V AC that provides the most accurate turns ratio testing of power transformers used in power generation and transmission. By using the external booster, test voltage increases up to 5 kV AC in order to successfully test capacitive voltage transformers.All DV Power turns ratio testers have a built-in tap changer control unit. Because of that, it is possible to control the on-load tap changer (OLTC) directly from the device. In order to make the most out of this feature, the instrument and included DV-Win software can be programmed to do everything automatically – running turns ratio tests, changing OLTC tap positions, and saving results. This option significantly facilitates and shortens the turns ratio testing time.TRT turns ratio testers use the same set of cables as three-phase winding ohmmeter & tap changer analyzers from the TWA series. Consequently, it enables one-time cable setup for performing eight tests:turns ratioexcitation currentphase anglemagnetic balancevector group detectionwinding resistanceon-load tap changer DVtestand demagnetization.

  • 1μΩ-4kΩ AC Milliohmmeter Low Resistance Tester

    TH2521 - Shenzhen Chuangxin Instruments Co., Ltd.

    TH2521 AC Milliohmmeter is a high-performance and intelligent tester widely used to test contact resistance, internal resistance and battery voltage. The application of constant current source with 1kHz frequency can greatly eliminate the potential error caused by thermoelectricity on DUT. This meter has the function to automatically detect contact failures on test cable. At the range of 30mΩ, basic R resolution can reach 1μΩ. It is applicable for transformer, inductance coil copper resistance, relay contact resistance, switch, connector contact resistance, wire resistance, PCB line and via reistance dan metal defect detection, etc. In the mean time, signals, such as HIGH, LOW, PASS, can be output through HANDLER interface, thus it is very convenient to be used in automatic production line.

  • PXI-2549, 2.7 GHz, 50 Ω, Dual-Terminated SPDT PXI RF Relay Module

    778572-49 - NI

    2.7 GHz, 50 Ω, Dual-Terminated SPDT PXI RF Relay Module - The PXI‑2549 is a general-purpose single‑pole double‑throw (SPDT) switch module. You can use it to add flexibility to your switch network or to maintain uniform signal paths across multiple channels when building high‑channel‑count multiplexers. The PXI‑2549 termination resistors minimize reflections on open channels and protect your source or device under test from damage. The module also features excellent insertion loss, voltage standing wave ratio (VSWR), and isolation parameters to minimize signal degradation. You can use its onboard relay count tracking feature to predict relay lifetime and reduce unexpected system downtime.

  • 2-in-1 High-Voltage Test Hood

    LX-HVE600EC - LXinstruments GmbH

    2-in-1 high-voltage test hood with integrated interchangeable setHV hood for electrical safety test & function test.The test cells are made of stable, highly insulating plastic and are closed by a swiveling, transparent cover. The built-in safety switch is used to lock the hood and release the high-voltage sources. This ensures that no high voltage is active when the door is open. There is a generously dimensioned wiring space in the floor of the test cage. An interchangeable adapter plate in the test cell - optionally with an interchangeable interface or an interchangeable adapter cassette - allows quick adaptation to different types of test items. Prepared openings enable connectors and other common interfaces or cable bushings to be easily attached. The hood is opened and closed almost effortlessly thanks to precisely coordinated gas springs.

  • 32-CH/64-CH Isolated Digital I/O PCI Express Card With Digital Filter

    AX92351 - Axiomtek Co., Ltd.

    The AX92351 is a 64-ch isolated digital I/O PCI Express card with 2,000VDC isolation protection. This high-density digital I/O card with high-speed PCI Express x1 bus is excellent for use in applications requiring digital control or monitoring, such as semiconductor machinery, PC-based industrial machinery, programmable I/O logic control, and process status monitoring. The AX92351 features 32 isolated digital input channels and 32 isolated digital output channels with isolation protection of 2,000V for industrial applications where high-voltage isolation is required. It is equipped with a board ID feature for easy identification of multiple cards in single system. There is a digital filter function to prevent input signals from carrying noise or a chattering. Each isolated input has a sink or source current which supports dry and wet contact for maximum application flexibility. The card has a wide range of input voltage from 10 to 30V to meet most industrial application needs. The AX92351 also provides two interrupt sources on digital input channels. Digital output has open controller and supports maximum 30VDC. The read-back function is another useful function that allows monitoring each output port.

  • PXI-2559, 2.5 GHz, 75 Ω, Dual-Terminated SPDT PXI RF Relay Module

    778572-59 - NI

    2.5 GHz, 75 Ω, Dual-Terminated SPDT PXI RF Relay Module - The PXI‑2559 is a general-purpose switch module featuring two independently terminated single‑pole double‑throw (SPDT) relays. You can use it to add flexibility to your video switch network or to maintain uniform signal paths across multiple channels when building high-channel-count multiplexers. The PXI‑2559 termination resistors minimize reflections on open channels and protect your source or device under test from damage. The module also features excellent insertion loss, voltage standing wave ratio (VSWR), and isolation parameters to minimize signal degradation. You can use its onboard relay count tracking feature to predict relay lifetime and reduce unexpected system downtime.

  • Electrical Safety Test Equipment

    IBEKO Power AB

    Making a product “safe” requires an understanding of “hazards” that exist in each electrical product. Electrical shock is one of the four fundamental hazards. Because of that, it must be a part of any product electrical safety evaluation. Even though a product requires an electrical power source and uses electrical or electronic components, it should not present an electrical shock hazard to the user.Ground bond or earth continuity testing prevents electrical shock hazards. Similarly to a fault to earth, test instruments generate a high current. The standard requires that the resistance between protective earth and any conductive surface on the equipment does not exceed 0,1 Ohm. The test is performed by applying a DC current between the conductive surface and protective earth. By measuring the voltage drop, it calculates the resistance.RMO-E instruments are ideal for testing the protective bonding (grounding) of equipment following the standard IEC 61010-1. Applying current up to the value of 100 A and the ability to provide in the Contin menu (continuous operation) test current for the pre-set test duration (equal or exceeding 1 min) gives a user a possibility to easily check the protective bonding/grounding of the equipment. The full load voltage of 12 V assures proper measurement and accurate result. Finally, an instrument displays pass/fail classification according to user-preset parameters.

  • Single Channel USB Programmable Band-Pass Filter

    USBPBP-S1 - Alligator Technologies

    The USBPBP-S1 stand alone USB controllable module provides a single channel of high and low-pass filtering and high-quality instrumentation amplifier for front-end signal conditioning compatible with all popular A/D converter devices. The USBPBP-S1 is powered with 9 to 12VDC so it can be connected to a battery voltage source or the supplied 115-220VAC adapter may be used for operation with wall power anywhere in the world. When programmed from the USB port, the USBPBP-S1 will remember all of the programmed properties between power cycles. Program once and operate as a stand- alone signal conditioner without having to reprogram for every use. This is perfect for turn-key applications. It's easy to connect the USBPBP-S1 into the data collection system. Input and output signals can be routed through BNC connection or using the detachable screw terminal connectors. Optional SMA type adapters are also available.

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