Showing results: 256 - 270 of 412 items found.
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HDLT -
Hention Electrical Equipment Co., Ltd.
This integrated precious insulation oil dielectric loss tester is for measuring dielectric loss TAN and capacitance of transformer insulation oil.This is a high precision instrument; integrated with oil cup, temperature control instrument, temperature sensor, dielectric loss test bridge, AC test power, and standard capacitor, etc.
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TWA Advanced Series -
IBEKO Power AB
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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ESU-2050P -
BC Group International Inc.
Calibration quality analyzer; uses external precision non-inductive test loads and wide band current transformer. The Pulsed Model is compatible with all continuous output generators (same as standard model), plus generators with pulsed output waveforms.
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CP11B -
Calmet Smart Calibration Devices
Single phase, class 0.02 and 0.05 power quality calibrator up to 120A and 560VAC with programmable power quality parameters. It makes possible to make automatic test of electricity meters, measurement transducers, current transformers and protection relays.
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HVA28 -
HV Diagnostics Inc.
The HVA28 is the smallest, lightest VLF/DC test instrument on the market. It is about as small as you can make it! Do not let its compact size lead you to believe this unit is lacking in power. The instrument can test up to 100,000ft/30kms of cable (at reduced voltage and frequency). In addition to cables, this unit can test vacuum bottles, transformers, motors / generators, cable sheath/shields, etc.
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NEO TELE-TRONIX PVT. LTD
We are highly experienced in manufacturing and exporting Induced Over Voltage/DFDV Test Set. It is widely used in electrical and power sector to test different types of transformers. Our range includes different models of testing set to meet clients' diverse requirements. Manufactured in accordance with industry standards, this Induced Over Voltage/DFDV Test Set is offered to clients at competitive price.
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HT7051 -
HT Italia Srl
HT7051 has been developed to measure insulation resistance with test voltage programmable up to 5kVDC and measuring range up to 10TΩ which makes it very useful in any industrial application (tests on electric machines, power transformers, electric cables, electric boards, generic devices, etc.) within BT.
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19035 -
Chroma Systems Solutions, Inc.
The quality verification test items for Wound Components consist of AC/DC Hipot tests and Insulation Resistance (IR) tests. Chroma integrates the above tests into the Hybrid 19035 Wound Component EST Scanner series to perform safety tests for motor, transformer, and heater related wound products. The wound component manufacturers performing quality verification testing will not only have reliable quality, but also can control product quality efficiently.
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KH23101 -
Beijing KeHuan Century EMC Technology Co,.LTD
The KH23101 current caliper is a toroidal transformer used to measure EMI current. When measuring, the caliper does not directly touch the electrical conductor or the cable under test. The conductor passing through the caliper window is used as the single-turn primary wire of the transformer, and the secondary is designed to be multi-turn. Use with 50 Ω receiving system (such as EMI electromagnetic interference field strength meter or spectrum analyzer). In order to facilitate installation and rapid measurement of EMI current, it is designed as a caliper that can be opened.
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ZERA® WM3000I -
Powermetrix Systems
The current measuring comparator WM3000I is a high-precision device for comparing secondary outputs from a current transformer under test (or digital output of Electronic CTs or Digital CTs) with a reference signal supplied by a standard transformer primary. The resulting error value will be displayed as ratio error and phase error on the screen. The operation of the comparator will be performed via an integrated 10.1” capacitive touch screen or controlled by PC software. The WM3000I is compatible with existing systems, like Knopp, and exports a data output for active database systems.
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SCR ELEKTRONIKS
The test bench is specially built for low voltage- B, C & D curve MCBs. Specially designed custom built jigs are able to accommodate single, double, three and four pole MCBs. Decades of experience has helped us to design current source (transformer) in a special way such that good current regulation and high accuracy is ensured with a variable range without the use of any variable transformer in the system. The product is better than the competition with conventional technology at a lesser price!
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C300B -
Calmet Smart Calibration Devices
Three phase, class 0.02 and 0.05 power quality calibrator up to 120A (360A) and 560VAC with programmable power quality parameters. It makes possible to make automatic test of electricity meters, measurement transducers, current transformers and protection relays.
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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.
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WAYZ-2011 -
Wuhan Sangao Electrical Test Installations Limit Co.
This Transformer on-Load Tap-Changer Tester is acc to Chinese Electric Power Industry Standard, It also can meet the requirement of electrical equipment handover and prevention test standard.To achieve the accurate measurement of on load tap changer's transition time, transition resistance,three-phase synchro nization parameterssyn.It is the best test equipment of on-Load Tap-Changer.
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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.
