Voltage Transformer
a type of intrument transformer enabling secondary connected metering.
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Transformer Insulation Testing
The primary test methods used to assess the condition of the active insulation components in transformers and bushings, on site, include:1) power factor/tan δ,2) variable frequency power factor/tan δ (1 - 500 Hz)3) dielectric frequency response (DFR) [a dielectric response method], and4) moisture in oil measurements (for transformers).
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NI-9239, ±10 V, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Input Module
779593-01
±10 V, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Input Module - The NI‑9239 performs differential analog input. With channel‑to‑channel isolation, your entire system, including the device under test, is protected from harmful voltage spikes up to the isolation rating. In addition to safety, isolation eliminates measurement errors caused by ground loops because the front end of the module is floating. Designed for both speed and accuracy, the NI‑9239 is an effective general-purpose analog module because of its resolution, sample rate, and input range.
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Transformer Performance Tester
6691
applying ±90V voltage on the winding of the transformer demagnetized and get the voltage value on the terminal and the current value in the winding to draw the hysteresis characteristic curve. This method can be used for linear quantitative analysis of residual magnetism in transformers, and fast demagnetization can be achieved by tracking hysteresis curves. The analyzer can measure magnetism residual rate before and after demagnetization.
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Linear Voltage Regulators
ST offers a wide range of voltage regulators intended for automotive applications.
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BMS Transformers
In large battery pack applications with daisy chain connections, the number of cells connected in series is very high, and the large voltage differences demand component-to-component isolation. The serial communication links between boards need to be isolated by transformer coupling circuits instead of capacitor coupling.
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Voltage References
Maxim offers an industry-leading portfolio of shunt and series voltage reference ICs. We were the first to develop a series reference in a 3-pin SC70 and in chip-scale packaging. Our hundreds of voltage references include high-accuracy, low-power, low-noise, and automotive-grade products.
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Voltage Control Attenuator
RF Lambda’s voltage control attenuators allow for precision control of RF signals. With a voltage variable control pin the signal can be fine-tuned as needed by the system. These attenuators offer fast response time and wide band operation. Hermetically sealed options are available upon request.
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Voltage Controlled Oscillators
Teledyne Microwave Solutions (TMS) offers Voltage Controlled Oscillators (VCOs) utilizing bipolar transistors & silicon varactors over the frequency range of 40 MHz to 18GHz. Many of the VCO designs incorporate internal filtering, regulation & amplifiers to meet total system requirements in a small integrated package. Additionally, our hermetic hybrid designs can be screened to the most demanding military and space applications.
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Voltage Controlled Oscillators
Macom Technology Solutions Holdings Inc.
At MACOM we offer a variety of voltage controlled oscillators (VCOs) that generate frequency in aerospace and defense, point to point, CATV Satcom and other Radio applications. Our surface mount hybrid and MMIC VCOs support a variety of applications operating between the 45MHz to 14.2 GHz frequency range. Featuring low phase noise, stable performance over temperature, low power consumption, and highly linear tuning, MACOM’s VCOs provide leading edge solutions for challenging communications needs.
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Programmable Voltage Reference Plug-In
ProDAQ 3202
The ProDAQ 3202 voltage reference card is used in the ProDAQ 3180 ultra-performance motherboards and LXI function card carriers. The ProDAQ 3202 voltage reference card is plugged directly onto the motherboard or carrier and can distribute the reference voltage to all ProDAQ function cards via two signal lines. This allows the distribution as a differential signal to overcome possible noise pick-up.
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AC Voltage Testers
ALT Series test sets are designed for testing aerial lift devices (bucket trucks) but can also serve as portable, versatile all-purpose AC testers with an output of 0-60/120 kV AC @ 7 kVA, ideal for field, plant, and substation testing.
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True Online UPS Systems with Inbuilt Isolation Transformer
Our software and connectivity devices incorporate all the features you need to proactively manage your systems, from basic monitoring and shutdown to predictive analysis and power management. Aplab Integration Services offer complete solutions tailored for the specific requirements of Defense Services, Telecom and Commercial markets.
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Voltage Variable Attenuators
Macom Technology Solutions Holdings Inc.
Voltage Variable Attenuators (VVA) from MACOM offer the ability to control the attenuation level relative to a voltage. Attenuation range is up to 30 dB covering frequency as high as 45 GHz. VVAs feature excellent return and insertion loss along with high IP3 in small SMT packages.
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Low Voltage Switching Regulators
Renesas' comprehensive portfolio of low voltage, synchronous buck integrated FET switching regulators offer a compact solution size with outstanding performance.
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Transformer Turns Ratio Testers
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.
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Distribution Transformer Tester
NDB-DOC™
The NDB-DOC™ is a test instrument designed for distribution networks transformers from 10kVA to 2500kVA. It can determine the presence of short circuits or an open circuit in the distribution transformer primary winding & also short circuits on the secondary winding. The NDB-DOC™ is designed to be operated from an arial device or from the ground at the end of a hot stick without disconnecting the transformer’s secondary windings.
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Low Voltage Differential Signaling (LVDS)
Available in QML-Q and QML-V processing flows, CAES LVDS solutions meet all of the stringent mechanical qualification requirements defined in MIL-PRF-38535.
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Transformers (Murata Power Solutions Products)
Murata transformers are ideally suited to high-frequency designs. The products come in a variety of industry-standard packages and can be used in applications where impedance matching, voltage conversion, isolation and current sensing may be required.
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Transformer Winding Resistance Meters
TWA Advanced Series
The TWA advanced series instruments are designed for six-winding resistance measurement and simultaneous three phase on-load tap changer analysis of both the primary and the secondary transformer windings. This is performed with a one singlestep cable setup, with test currents of up to 40A. Each transformer configuration has a special measurement algorithm which is optimized for the fast stabilization of test results. The TWA instruments generate a true DC ripple-free current. Both the injection of the current and the discharge of energy from the magnetic circuit are automatically regulated.
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Voltage Meter
MN8IP
The mezzanine module (mezzanine) MN8IP is designed to measure instantaneous voltage values over eight differential channels isolated from each other and control circuits.
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High Voltage DC
Output voltage is infinitely adjustable from one to five kilovolts. Normal output voltage is direct current (DC).
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Transformer Testing
The ART-3D series of Automatic Ratio Testers are precision instruments, designed to measure the turn ratios, phase displacements, excitation currents of single phase and three phase power, distribution and instrument transformers in conformity to the IEEE C57.12.90 & IEC 60076. Now featuring an enhanced test lead design, the ART-3D is the perfect instrument for real-life field usage. ART-3D series also has Anti Induction circuit which makes it suitable for system voltages upto 765KV.
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XDSL Transformers
We manufacture and supply an extensive line of high-performance xDSL transformers, including ADSL, VDSL, Vectored VDSL, VDSL Hybrid, VDSL Line, G.fast, HDSL2 and G.SHDSL transformer and chipsets.
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Adjustable Isolating Transformers
PeakTech Prüf- und Messtechnik GmbH
Is a 2 in 1 laboratory isolating transformer with integrated DC power supply, which was designed with the aspect of high safety requirements for use in research, science and repair. The device has a dual adjustable DC, AC output, which can also be used for constant voltage or current and offers high stability and performance.
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Electrical Tester For Voltage
PDT35
Automatically Selects VAC, VDC, or Continuity TestComplies with EN 61010-1 For Use in CATIII 600 V Environments1999 Count LCD DisplayAuto Power On/OffHigh Input Impedance -- 400 kVoltage AC: Max Range 600 V, Accuracy +/- 1.5%Voltage DC: Max Range 600 V, Accuracy +/- 3.0%Continuity TestAccessories Included: Test Leads, 2 'AA' BatteriesDimensions: 8.46' H x 2.83' W x 1.44' DWeight: 8.29 oz.Sold as : Unit
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Power Transformer
Transformer turn ratio meter is special designed for power transformer (single phase & three phases) and instrument transformer testing, suitable for testing in substation, transformer manufacturer, meter manufacturer. It helps to detect faulty transformer winding and tap changer position. It’s fully automatic device, can recognizes winding connection and vector group number of transformer winding. The user only need connect measuring cable and press start button and come out the test result.
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AC Breakdown Voltage Test Set
Our company is known as the most trusted manufacturer and exporter of AC Breakdown Voltage Test Set. This testing equipment is widely used for testing AC power supply in industries. Highly demanded by electrical, power and engineering industry, this AC Breakdown Voltage Test Set is available to clients in different technical specifications at competitive price. We manufacture this testing equipment to clients at competitive price.
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HDBaseT Transformers
Pulse HDBaseT transformers are designed to provide common mode noise reduction for improved EMI performance and support power over HDBaseT (PoH) applications of up to 100W. The HDBaseT technology enables 5Play feature set, which includes ultra high definition 4K video, audio, 100BASE-TX Ethernet, various control signals, and up to 100W of power, on a single 100m/328ft CAT5e/6 cable.
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voltage controlled crystal oscillator
VCXO
A VCXO (Voltage Controlled Crystal Oscillator) is a crystal oscillator the output frequency of which is controlled by adding an external control voltage via a frequency control input on a variable capacitance component such as a varactor diode connected in parallel to a load capacitance (CL). Epson VCXOs are divided into two types according to Voltage-Frequency (V-F) characteristic slopes depending on the AFC (Automatic Frequency Control) input configuration of the VCXO. One is a VCXO with a positive V-F slope and the other is a VCXO with a negative V-F slope. Please note that the input voltage of a control circuit will vary according to the individual type, as shown in Figs. 3 and 4. Epson's VCXOs are capable of either, depending on the customer's preference. Epson's VCXOs have been increasingly used for broader applications such as slave oscillators in phased-lock loops, or frequency modulators. Among the above types, a VCXO combined with a TCXO is called a VC-TCXO , respectively. These components have the merit of delicately controlling their output frequency electrically.
