High Voltage Transformers
See Also: Substation
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BDV Transformer Oil Test Sets
NMC''s Transformer BDV Oil Test Set is a portable unit as per relevant Indian Standard Specification IS :6792 :1992, suitable for operation on 230 / 240 Volts, A.C. 50 Hz. A three core flexible cable is connected to the unit with three pin socket to connect the mains. The H.V. Transformer is a completely dry, resin encapsulated with two H.V. terminals with mounting saddles. The center point of the transformer is earthed, so that the voltage of each terminal to earth is only half the test voltage.
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High Voltage Meter
DU-3900
Delta United Instrument Co., Ltd.
The DU-3900 is a digital voltmeter that can measure high voltages up to a 10kV AC and DC at high accuracy. Its high input impedance (1000M) makes it suitable for measurement of high impedance voltage circuits. Since it has a high accuracy despite its small size and light weight, it can also beeasily used as a portable calibrator.
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PXI Single 24:1 High Voltage Power MUX
40-331-001
The Pickering Interfaces 40-331/332 High Voltage Power Multiplexer and Matrix Modules are suitable for applications requiring high voltage power relay switching with high density. They feature current handling up to 5A, 1000VDC/1000VDC peak cold switching and 110VDC/250VAC hot switching. The 40-331 is available as a single 24:1, dual 12:1, quad 6:1, hex 4:1, octal 3:1 or twelve 2:1 multiplexer, and the 40-332 is available in 12x2 or 6x4 matrix configurations. Connections are made via a front panel mounted 37 pin high voltage D-Type connector.
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Voltage Testers
Kyoritsu Electrical Instruments Works, Ltd.
AC and DC voltage tests up to 690V with LED Comply with the latest standards IEC 61243 and IEC 61010 Novel designLarge and bright LEDs: Values are visible in the dark placeErgonomic design fits in the hand Two functions are available in one model"Measurement without battery" and "Self Test (all LED on)" Test leads withstand harsh environments at low temperature Penlight (white LED) Auto-power ON/OFF Audible indication Variable test tips, 2mm or 4mm Probe protection cover can store the attachment of caps IP65 (IEC 60529)
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High Voltage DC Cable Test Systems
We can offer from ±18kVdc to ±30kVdc units which all have automatic earthing for discharging capacitive loads. They are designed to perform tests on installed cables and jointing systems.
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Voltage logger0 to 25V
TK-4702
Supplied with an input cable, this logger can measure voltages up to 25V DC and can be connected to many industry standard devices, such as CO2 sensors and current clamps, enabling the logging of a wide range of process parameters.
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TRANSFORMER WINDING RESISTANCE METER
International Biological Laboratories
This Test set is suitable to measure winding resistance of transformers, single or 3-phase, star or delta connected upto several MVA.Two independent displays read the resistance of both primary & secondary windings simultaneously. However, primary or secondary winding can also be measured separately.
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Low Voltage Test & Measurement
Low voltage testing is able to catch errors such as shorts and opens by applying current to a wire and measuring the voltage. The wire will have a current affected by several factors including resistance and components. If the wire is connected correctly, the test will read low resistance. That means current is flowing through the wire as expected and reaching the required connections. If the tester reads high resistance it means something is impeding the current from reaching its destination. This could be caused by a number of causes.
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MPOD Universal Low And High Voltage Power Supply System
MPOD--LVHV
In addition to the well established 6-, 8- and 12- channel "medium power" low voltage power supplies of the PL506, PL508, PL512- and MARATON - series WIENER presents with Mpod a new, universal multi-channel low voltage (LV) / high voltage (HV) power supply system.
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Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
TWA Advanced series is the latest DV Power solution for three-phase transformer winding resistance measurement and tap changer analysis. They are capable of testing six transformer windings with a single cable connection, as well as three-phase automatic transformer demagnetization. It has the option of the automated test mode, where the instrument operates the tap changer without operator input (minimizing the risk of human error) and records winding resistance results based on pre-selected stabilization criteria.The unique DVtest method of tap changer analysis enables checking the moving contacts of on-load tap changers during the transition, measuring the transition time, detecting open circuits, and many other types of faults. It is performed with 0.1 ms sampling rate, together with the measurement of tap changer motor current which detects motor and mechanical issues. A special proprietary algorithm is used for testing tap changers connected through a built-in series (booster) transformer. The DVtest can be performed either on one phase or simultaneously on three phases. It can also be performed together with the winding resistance test in all tap positions.A unique advantage of TWA Advanced instruments is the capability of simultaneously testing the winding resistance of all three phases of a three-phase transformer connected in a YN configuration. This can significantly speed up the testing– for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.TWA500 is equipped with a large 10.1” graphical touch-screen display, while TWA400 has a 7” graphical touch-screen display. Besides making the interface much more user-friendly compared to older winding ohmmeters, it also enables certain test options that were previously available only with DV-Win software. The most important among them are DVtest, tap changer motor current measurement, “Heat Run” test, test templates, and automatic test mode.
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PXI/PXIe High Voltage Multiplexer, Single 23-Channel, 2-Pole
40-321-127-HI
The 40-321-127-HI (PXI) and 42-321-127-HI (PXIe) are single 23-channel 2-pole high voltage multiplexers capable of hot or cold switching up to 1000 V peak. They are also available in a range of bank sizes with 1 or 2 poles and channel counts between 4 and 48. High quality reed relays are used throughout.
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Fourier Transform Infrared Spectrophotometer
IRSpirit
Despite their small footprint, smaller than an A3 size sheet of paper (297 x 420 mm), these models have been engineered with a wide sample compartment that accommodates existing accessories from Shimadzu and other manufacturers. This capability makes them the smallest (installation footprint) and lightest FTIR spectrophotometers in the world that can be used with optional products from other manufacturers. They also include a program, IR Pilot, with 23 application-specific workflows that can be utilized without involving any complicated parameter setup process. Customers can select from either the IRSpirit-T model, which offers sensitivity equivalent to standard Shimadzu models, or the reasonably priced IRSpirit-L model.
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sbRIO-9220, Non-Enclosed, ±10 V, 100 kS/s/ch, 16-Bit, Simultaneous Input, 16-Channel C Series Voltage Input Module
787814-01
Non-Enclosed, ±10 V, 100 kS/s/ch, 16-Bit, Simultaneous Input, 16-Channel C Series Voltage Input Module - The sbRIO‑9220 helps you perform differential analog input. The sbRIO‑9220 contains NIST‑traceable calibration, a channel‑to‑earth ground double isolation barrier for safety and … noise immunity, and high common-mode voltage range. Non-enclosed modules are designed for OEM applications.
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High Voltage Dry Reed Relays For up to 15 kV
SERIES 62 & 63
ungsten switches with power rating of 50 Watts maximum? Three switch types:5kV stand-off, 3.5kV switching10kV stand-off, 7.5kV switching15kV stand-off, 12.5kV switching? Series 62 has push-on connectors on top face for EHT and solder pins and nylon studs on the underside for PCB mounting
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Voltage Controlled Oscillators
World's widest selectionWideband up to full octaveLinear tuning
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AC Voltage Detector
VT-2
The Non-contact AC Voltage Testers are easy to use — just touch the tip to a terminal strip, outlet, or supply cord. When the tip glows red and the unit beeps, you know there’s voltage present. Electricians, maintenance, service, safety, personnel, and homeowners can quickly test for energized circuits in the workplace or at home.
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Replacement Alligator Clips for High Voltage Differential Probe
PK-HVA-01
Replacement Alligator Clips for High Voltage Differential Probe
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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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Transformer Testing
Haomai Electric Power Automation Co.,Ltd.
1)Test Standard:IEC60076 & IEEE C57.12.90 2)Voltage ratio measurement of transformer 3)Turns ratio measurement of transformer 4)Group vector measurement of transformer
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High Voltage System
HV-2
International Electro-Magnetics, Inc.
*Tests Power Transformers for Continuity, Ratio and Phase. Applied and Induced Potential and No-load Losses.*14 Conductor Switching Matrix will test 7 individual windings, 13 taps of one common winding or some combination thereof. (10 Amp current limit)*The System Control is Windows/Visual Basic based. Menu screens allow full selection of test parameters and sequence. Low voltage tests can be performed first, allowing defective parts to be rejected without proceeding to time consuming induced Potential dwell routines. Test data labeling and data acquisition software can be easily added to the system.
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5-50V AC/DC Voltage Tester
1930A
Peaceful Thriving Enterprise Co Ltd
*Reinforced casing.*With cETL Approval.*Check voltage on 5-50V AC/DC.*Insulated housing and test leads.*Pocket clip for added convenience.*Built-in LED indicator will glow when voltage is present.
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Clamping Voltage Tester
MIG0603CLV2
The MIG0603CLV2 is a generator for clamping voltage testing of varistors. It has circuits with four different source impedances and up to 15 different measurement ranges. The instrument is used to perform varistor clamping voltage tests on up to 1000 V varistor types. The test impulse is a 8/20µs current waveform up to 500A which is maintained over the entire load range.
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100-250V AC/DC Voltage Tester
7321A
Peaceful Thriving Enterprise Co Ltd
*Check voltage on 100-250V AC/DC.*Built-in neon lamp for 120V and 240V AC/DC.*Large, high visibility neon indicator positively identifies the presence of voltage.
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Transformer Turns Ratio Meter
TTRM 101
SCOPE introduces state of the art precision single phase Transformer Turns Ratio Meter (TTRM ) designed for field testing as well as factory testing of power transformers, instrument transformers and distribution transformers of all types. TTRM 101 measures only turns ratio where as TTRM 102 along with turns ratio, measures ratio deviation, phase angle deviation, magnetizing current and detects tap-position of single phase transformer in charged switchyard condition. The range of AC voltage selection offers high accuracy in measurement.Both the instrument have in-built TFT display with touch screen and thermal printer. The user friendly, simple instrument makes the testing more easy. With the touch keypad it is possible to enter required DUT information.The ratio results are displayed with % error. Internal non-volatile memory gives the provision of storing test results.Further data can be downloaded to PC or copied to memory stick through USB port provided.
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High Temperature
When low vapor pressure materials demand more heat to transform, Veeco’s high-temperature MBE sources step in. Built for thermal extremes, they power the kinds of reactions and structural changes that unlock next-level device performance.
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LISN & Voltage Probes
All commercial LISNs include an artificial hand connection and a transient limiter. This adds a 30dB insertion loss. A 30dB pre-amplifier is included which can be connected in the RF output feed to return the insertion loss to 0dB. The Voltage Probe requirement is covered by our PLIP (Power LIne Interference Probe). This fully meets the requirements of CISPR16, but has additional features:*Fully galvanic isolation between input and output (>1kV), for the safety of operator and analyser!*Shrouded safety clips for attachment to the line to be measured.*Filtered frequency response matched to Band A and B.*Current limiting on the output.*Visual indication of high voltage input.
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Standard 0.80 (22.00) - 4.00 (114.00) High Frequency Probe
CSP-03G-003
Current Rating (Amps): 6Bandwidth @ -1dB (GHz): 3.70Return Loss @ -20dB (GHz): 1.80Nominal Impedance (Ohms): 50Dielectric VTE Rating (k VAC): 1Test Center (mil): 300Test Center (mm): 7.62Full Travel (mil): 250Full Travel (mm): 6.35Recommended Travel (mil): 167Recommended Travel (mm): 4.24Overall Length (mil): 1,090Overall Length (mm): 27.76
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High Voltage Amplifier
HA-405
* 400Vp-p(±200V DC)* 400mAp-p(±200mA DC)* Bandwidth: ≦1MHz(200Vp-p) *Slew Rate: 500V/us *Gain(AMPL):0~90(10 Turn VR) *DC Offset: ≦0~±200V(10 Turn VR+SW) *Output Resistor: 50Ω *Microprocess Control Protection
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