Showing results: 691 - 705 of 1014 items found.
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PW-VP50 -
Ponovo Power Co., Ltd.
PW-VP50 CT Polarity checker is the favorable meter which can be used for field CT and transformer polarity test in power plants, substations and any other application which may need to check the polarity. There are 2 units included in PW-VP50. One master machine which can automatically inject...
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SD -
Computer Conversions Corporation
This unique series of Synchro to DC Converters makes use of advanced digital circuitry techniques to accomplish high speed conversion with extreme accuracy. Transformer isolation as well as balanced line-to-line input impedance is provided for superior and trouble-free system performance, regardless of the input synchro used.
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Computer Conversions Corporation
This unique series of Synchro to DC Converters makes use of advanced digital circuitry techniques to accomplish high speed conversion with extreme accuracy. Transformer isolation as well as balanced line-to-line input impedance is provided for superior and trouble-free system performance, regardless of the input synchro used.
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Picoprobe
This is an example of a 900 MHz Integrated Balun Probe. It incorporates a 50 ohm unbalanced to 200 ohm balanced differential transformer. The probe can be built with or without a center tapped ground needle and may also incorporate DC bias through the differential pair or via separate needle contacts.
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Technology Products
HV Testing Kits are used for testing of Motors, Generators, Switchgears, Cables, Transformers and other electrical equipment. These are used for testing & commissioning of HV electrical equipment. High Voltage AC Testing Kits are available in ratings from 25KV to 300KV AC in various mA and KVA Ratings.
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ST-600 -
Standard Electric Works Co., Ltd
● Rotary scale which presents only one scale in windows at one time to avoid any possible reading errors.● Pointer lock function freezes the reading in dimly lit or hard to reach places.● Ω range ideal for checking the continuity or relays, transformers and motor coils.
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IBEKO Power AB
Winding resistance test of inductive test objects, such as power transformers, is one of the most effective non-intrusive ways of checking its condition. Due to their advanced design, DV Power winding resistance meters provide high test currents (up to 100 A DC) and high accuracy (up to 0.1%) within light and portable test instruments. In addition to winding resistance measurement, it is also possible to perform simple, quick and reliable transformer on-load tap changer condition assessment by recording the test current during tap changer operation, also known as DVtest. Because of that, problems with a tap changer connection, contacts, and switching procedure can be detected.DV Power winding ohmmeters consist of single-phase RMO-T and three-phase TWA series. Models from the TWA series are designed for six-winding resistance measurement of power and distribution transformers, with only one single-step cable setup. As a result of reducing the total test time, it enables significant saving of time and money.Typical application areas of these instruments are high-voltage substations and industrial environments. They are intended to measure the resistance of:Transformer windingsOn-load tap changersGeneratorsElectrical motorsHigh-current bus bar jointsCable splicesWelding joints
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AR700 -
Scope T&M Pvt, Ltd.
PD Defect Location in High-Voltage Equipment Insulation by Acoustic Sensors To act on deteriorating insulation the source of PD must be known.The insulation defects produce partial discharges, which emits electrical impulses, radiation of electromagnetic waves as well as acoustic signals.The AR700 measures acoustic signals with multiple sensors spread over the transformer. Then the software determines the failure location using the time difference of all incoming signals. Finally, these coordinates are shown in a 3D model of the transformer. AR700 device is used for measuring of acoustic signals on the external surfaces of gas-insulated breakers and substations, power transformers and other tank high-voltage equipment. The acoustic signals are caused by partial discharges in the insulation, which is the sigh of the defects.The advantage of “AR700” device is the quick installation of the acoustic PD sensors on the external surface of high-voltage equipment tank. The sensors have magnetic holder that is why there is no need to de-energize the equipment for the sensors installation. “AR700” device has 4 syn-chronic channels for acoustic signal measurement. This gives the possibility not only to find the defects in the insulation, but also to locate them. The location function of the “AR700”device is unique for acoustic devices.
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mPCIe-LAN-GbE -
Acces I/O Products, Inc.
The mPCIe-LAN-GbE is a type F1 PCI Express Mini Card (mPCIe) optimized for use in mobile and rugged environments, with latching connectors and protection on all signals. The onboard magnetics feature robust built in isolation via transformer coupling. In addition, extended operating temperature and RoHS compliance are standard.
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PeakTech Prüf- und Messtechnik GmbH
This AC / DC laboratory power supply has two separately adjustable outputs which can dispense AC/DC voltages from 0 - 30 V as well as DC/AC current 0 - 6 A. Due to the possibilities offered by this device, it is also suitable for the maintenance of small AC circuits, transformers and lights.
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ISU-R -
Raytech AG
Raytech Integrated Safety Unit is a useful device when creating rack mounted transformer observing systems. It supplies Raytech devices with fused electrical power, manages external Interlocks and provides a single interface for an external warning lamp. The whole system can be turned on and off with a single mains switch.
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585 -
Radian Research, Inc.
The 585 Burden Tester is a hand held unit rated for use up to 20A. The design features a digital LED meter for displaying the current transformer (CT) secondary current. The burden is applied for a specific length of time controlled by circuitry inside the unit to help prevent the burnout of the burden elements.
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1620A -
Ballentine Laboratories, Inc.
The 1620A provides high accuracy current levels from dc to over 10 kHz for calibrating ammeters, current transformers and shunts. It also provides output current up to 100 Amperes and as such may also be used as a high accuracy power supply, and as a power source in welding and bonding applications.
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Techimp HQ S.r.L
Techimp Voltage Tap Adapter is gender changer which allows the user to connect to the test tap (sometimes called power factor tap) of high voltage transformer bushings.While keeping the test tap well below the safety voltage level required by the manufacturer, the Tap Adapter lets the user to drain high frequency PD signals for diagnostic assessment of insulating materials.A synchronization signal can be derived as well.It is suitable for both single shot as well as continuous PD monitoring.Although it must be customized on the basis of the shape and dimension of the test tap (to be provided by the Customer), many models are readily available for the most established transformer bushings. A list of the presently available models is reported below.Several thousands of hours of operation are a guarantee of reliability and accurate design.
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PI-2500 -
ETI Precision
The PI-2500 is a versatile and technologically advanced primary injection tester capable of testing circuit breakers up to 2000 amperes frame size. It incorporates a low-impedance output transformer with dual secondaries to provide optimal impedance matching to a wide range of breaker sizes. High-capacity internal fan cooling allows maximum utilization of the output transformer and faster recovery after overload conditions. It is housed in a rugged aluminum frame enclosure with removable sides allowing easy access to all internal components to facilitate ease of service and maintenance. The output of the test set is controlled by means of a proven SCR controller. This provides precise initial phase angle control to reduce DC offset for inductive loads and more consistent pulse currents.
