Showing results: 196 - 210 of 237 items found.
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RR2204CZZ -
Aarohi Embedded Systems Pvt. Ltd
AAROHI resistance meters measure a vide range of resistance values at a high level of accuracy. RR2204CZZ is a high-precision, portable resistance meter capable of measuring resistance with extremely high accuracy with low ambient temp. effect. This is ideal for the testing and maintenance of Electric motors, Pump sets & other equipment with windings. This Instrument is based on Kelvin 4- wire connection method for measurement of low resistance.
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NEO TELE-TRONIX PVT. LTD
Contemporary Test Sets For Transformer Industries are developed to recognize the potentially disastrous current transformer errors. They prevent the primary current from overpowering insulation and short circuits. They are used for developing a testing and maintenance plan for addressing the errors before any failure to save money and time. With these powerful test sets, they are sure to perform saturation testing to test the knee point of a signal by comparing primary and secondary windings.
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HTJ-16 -
Shanghai Dean Electrical Co., Ltd
Executive standard: GB/T4074.3-2008/IEC60851-3; Inspection standard: JB/T4279.4-2008Used to measure the spring back characteristic of enameled round wires with nominal conductor diameter of between 0.080mm and 1.600mm;Number of winding turns: 5 turns and a halfStop accurately at zero position of the scale after automatic windingAs soon as the value of spring back angle stop counting, the dial will stop to rotate immediately, so that the value displayed on LED and read on the dial are the same.Sensor is unnecessary to be adjusted for samples of different specificationsCoils loosen slowly during spring back, no action of spring back or jump suddenly.Application of SCM control allows for fast operation and strong anti-interference capacity;
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CVCT-S20 -
Vasavi Electronics
Ideal for fast and fool proof testing of COILS AND SMALL TRANSFORMERS like SMPS transformers, Telecom transformers (HYBRID, POT CORE, RM-CORE), Pulse transformers etc. The systems scans at one stroke, all the windings of a transformer and tests as per definition of test procedure. The test procedure can be pre-programmed and stored under User friendly menu driven software . Any semi-skilled and unskilled person can be engaged for actual testing purpose. Can Select test frequency, pin number, parameters, test conditions, limits for each test. Test any pin to any other pin any defined parameter.Test Parameters :-> Inductance-> Capacitance-> AC Resistance, -> DC Resistance, -> Impedance, -> Leakage Inductance,-> Transformation Ratio & Winding PolaritySPECIFICATIONS :Measurement Frequencies : 50 Hz, 100 Hz, 500 Hz, 800 Hz; 1 KHz, 2 KHz, 5 KHz, 10 KHz. Measurement Voltage: 0.1 V – 1.0 V RMS adjustable under program control.
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TURNS-LCRTZ -
Vasavi Electronics
Digital TURNS TESTER with LCR for Counting / Measuring Number of Turns for Toroidal Coils , Current Sensor , Current Transformer , Round Core Coils. Can measure, Turns along with Winding Polarity , DC Resistance , Inductance (L), Capacitance (C), DC Resistance, Rac, Q, D, ESR and Tan.Toroidal Turns Platforms :TTPT100 : 5 T - 1000 T , TTPT1000 : 500T-10000 T The Platform has 2 connections for the coil and 2 for the probe wire. Measurement principle is based on dynamic comparison of the voltage across one turn and the coil. You will be able to get the polarity or winding indication with respect to the one turn reference.Accuracy : + 0.2% + 0.5T for high and medium permeability cores at suitable test frequency. Internal Diameter must be able to pass a wire as thin as 0.2 mm. External Diameter as high as 200 mm.Test Frequency Selectable in Step : 50 Hz, 100 Hz , 500 Hz, 1 KHz, 5 KHz, 10 KHz. Test Voltage adjustable : 100mV to 1V in steps of 50mV.
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The Motwane Manufacturing Company
Transformers are a vital link in the electrical distribution system. Accurate and timely transformer maintenance can prevent breakdowns by detecting potential causes, and eliminating them before danger strikes. In addition, regular maintenance ensures multiple years of trouble-free operation. Motwane offers a wide range of transformer maintenance products, such as the transformer turn ratio tester, winding resistance tester, automatic oil BDV tester, and oil tan delta resistivity tester.
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Hilkar
Iron core Shunt Reactors act as an absorber of reactive power to increase energy efficiency of the power system. Shunt Reactors are used in order to compensate capacitive reactive power generated by long and lightly loaded transmission lines as well as underground cables, thus allowing the flow of more active power through the system and avoiding over voltages. Shunt Reactors can be directly connected to the power line or to a tertiary winding of a three-winding power or distribution transformer.
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Neutronics Manufacturing Co.
NMC's Digital Micro Ohm Meters are low cost, compact, light weight, 3½ digit resistance meter suitable for measurements of resistances of cables, wires, transformers, motor windings, coils and contact resistance of switches, connectors, relays and track resistance of PCB's etc. The value of resistance is displayed on 7 segment LED display. Four terminal measurement systems provide measurements free from errors due to contact resistance and test lead resistance.
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MR 8050 -
Schuetz Messtechnik GmbH
With the MR 8050 resistances highly inductive Resistance Meters windings of transformers, motors and reactors can be measured. (range 100 µΩ with 0.01µΩ resolution up to 6 kΩ). The performance of the test objects can be up to 800 MVA or even more. The magnetic loading of a transformer is performed quickly using a high loading voltage (60V). This is important for time critical measurements (cooling curves). The unloading of the transformers core is very fast, very safe, as the energy is total destroyed in the MR 8050.
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Hilkar
Since the rise time of IGBTs are in the range of a few tens of nanoseconds (between 50ns-200ns), even short cables between PWM motor drives and motors cause voltage doubling at the motor terminals due to Travelling Wave Phenomenon as in transmission lines. The insulation of motor windings are prone to failure due to high voltage spikes if necessary precautions are not sufficiently taken. RC Type Output Filter Modules reduce these high voltage spikes to protect motors by connecting to stator terminals.
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Vanguard Instruments Company, Inc.
The ATRT-01 S3 is Vanguard’s fourth generation, micro-processor based, single phase, automatic transformer turns-ratio tester. The ATRT-01 S3 uses the IEEE C57.12.90 measuring method to determine the transformer turns-ratio. The transformer turns-ratio is determined by precisely measuring the voltages across the unloaded transformer windings. The ATRT-01 S3’s measuring circuitry self adjusts before each measurement to ensure turns-ratio accuracy. Two selectable test voltages, 4Vac and 40Vac, offer flexibility in testing different types of transformers.
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MR 270 C-A -
Schuetz Messtechnik GmbH
The MR270C-A is specially designed for electric resistance measurements in cable industry applications and inductive loads (transformers, motors). It is perfectly fit both for measuring the meter resistance in connection with a corresponding resistance measurement holding device or for final acceptance control of power cable reels. In the case of cable reels, which often have a cable length of several kilometers, both the compensation of the inductive component and the ability to perform measurements in the presence of high noise levels are important. This also applies to the winding resistance of transformers and motors.
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HDZK -
HD Power Test Equipment Co.ltd
Low voltage short circuit impedance test is to identify the shock of short circuit on the transformer on the operation, which is the direct method of checking the winding distortion after transformers hit by mechanical forces during transportation and installation.Short circuit impedance test is an important parameter to decide the running or disassembling inspection for transformer .Transformer Short Circuit And Impedance Tester is a new development instrument suitable for testing low voltage short short circuit impedance 35kV transformer in the field and labor
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Vanguard Instruments Company, Inc.
Performs CT excitation, current-ratio, polarity, and phase angle testsMeasures insulation resistance and winding resistance of the CT seconday windingsMeasures the CT's secondary burdenTest record header information including company, substation name, circuit ID, manufacturer, CT serial number, operator name, and test record-commentsBuilt-in 4.5-inch wide thermal printerPlot Multiple Saturation CurvesStores up to 128 CT test plans and 140 test records internallyUSB, Bluetooth, and USB Flash drive interface
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HVSCM -
Test Electronics
Designed to be used with the Model HVST High Voltage Surge tester. The Surge Current Monitor allows simultaneously surge testing 20 units. The Surge Current Monitor monitors the current going through each unit under test at the time of the surge. If a unit under test breaks down or leaks, the Surge Current Monitor will identify the bad unit by lighting the corresponding LED. The most important features of the surge tester are its ability to test the entire winding insulation system. A high voltage surge generates turn to turn, coil to coil, and phase to phase voltage stress, as well as ground insulation stress. When used as a dielectric test, accurate voltage readings are essential. The HV Surge Tester monitors the voltage directly across the winding under test. In production testing we expect that most of the time the devices will pass. In the event that one should fail, the failed device would be removed and then all the parts would have ot undergo another surge test. Since most devices pass most of the time, simultaneous surge testing can be a real time saver.
