Coil Turns
See Also: Coil, Helmholtz Coils, Rogowski
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Product
Turns Ratio Meter 3 Phase
TR-MARK III 250V
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The TR-MARK III 250V is the successor of the famous TR-MARK III. Besides an extended test voltage up to 250V, it offers new features and increased accuracy to make it a perfect system. A color LCD with back lighting and touch screen increases handling and user comfort. Two USB interfaces make it easy to store measurements on external storage devices and transfer easily to a personal computer or download nameplate data of transformer to test.
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Product
Transformer Turns Ratio Meter
TTRM 101
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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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Product
J-compensated Surrounding Coils
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With incorporated field coils. For plotting B-H (J) hysterese curves at room temperature. The following types are available: JH 6-2, JH 10-1, JH 15-1, JH 20-1, JH 26-1, JH 42-1, JH 66-1, JH 42-2 and JH 66-2.
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Product
Coil Testers & Power Supplies
POB Series
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Coil testers and power supply units, models POB30 and POB40 are ideal for commissioning and maintenance testing of circuit breakers. The station supply is not available. The POB series are power supply units implementing the latest power electronics technology. They are developed for use in switchyards, power and industrial environment. In addition to providing current and voltage for breaker testing, they can measure certain coil parameters.
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Product
AC Current Probe 2 mV/A, 3,000A, 0.11 Hz LF Bandwidth, 6.5MHz HF Bandwidth, 4m cable, 300mm coil
T3RC3000-LF
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AC Current Probe 2 mV/A, 3,000A, 0.11 Hz LF Bandwidth, 6.5MHz HF Bandwidth, 4m cable, 300mm coil.
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Product
Transformer Turns Ratio Testers
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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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Product
10-channel turn-to-turn Insulation Scanner
TH28831
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Changzhou Tonghui Electronic Co., Ltd.
Work together with TH2883, expand single channel to 10-channel
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Product
AC Current Probe 1 mV/A, 6,000A, 0.055 Hz LF Bandwidth, 6.5MHz HF Bandwidth, 4m cable, 300mm coil
T3RC6000-LF
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AC Current Probe 1 mV/A, 6,000A, 0.055 Hz LF Bandwidth, 6.5MHz HF Bandwidth, 4m cable, 300mm coil.
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Product
Helmholtz Coil
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In the measurement of magnetic fields by means of Hall probes or measuring coils it is necessary to calibrate the instruments in a known magnetic field. Our standard field coil according to Helmholtzenables to production of a magnetic field calculable with high accuracy from the dimensions and the amperage. In series arrangement with an accurate ammeter field strengths of up to 800A/cm are produced. The dield room accessible both in axial and radial direction. Helmholtz coils with fluxmeters are also useful in testing of magnets. Helmholtz coils give repeatable results as against the search coils due to which the magnets can be compared with more accuracy for their total flux and in turn their quality. Field Generating and Field Detecting Helmholtz coils are designed as per user specifications.
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Product
Coil Coating Wet Film Wheels
Elcometer 3230
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The outer wheels are knurled to allow measurements to be taken on slippery coatings or on fast moving substrates.
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Product
Single Variable Choke Coils
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Supreme Instrument Laboratories
Suitable for operation on 220 / 240 V, A.C. 50 Hz. working on air gap separation by increasing / decreasing the air gap with the help of a hand wheel mechanism, mounted on thick wooden / bakelite sheet with castor wheels for easy transportation.
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Product
Shorted Turns Tester for Bobbin Wound Coils
Model STT-4
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International Electro-Magnetics, Inc.
The STT-4 Shorted Turns Tester offers a quick and easy means to detect shorted turns in bobbin coils. It is a non-stress and non-contact test.
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Product
Turning Mirror
10769A
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The 10769A is ideal for use in laser measurement and calibration applications. In the calibration of slant bed lathes, for example, the beam steering mirror deflects the beam from the laser head upward, through the interferometer, along the lathe's cross slide. One or more mirrors can also create a path from a laser head to an interferometer located in an otherwise inaccessible position, as in the case of a milling machine with a table that moves in only one axis.
