Showing results 3271 - 3285 of 5592 products found

  • HTBYC-H - Transformer On-load Tap-changer Tester

    Company: Wuhan Huatian Electric

    This device applies to measure and analyze loading tap switch property index of power transformer and special transformer. It is controlled by computer, using special loops , to test the transition time, transition wave, transition resistance, three-phases synchronism of tap switch, etc. Customers can use tapping switch down-lead to test according needs and field conditions, also can use transformer three phase cannula and neutrality point to test.This device can analyze, store and print the test results.

  • ZC-220 - Transformer On-load tap-changer tester

    Company: Kvtester Electronics

    Product Features1. with function of light oscillograph2. strong integration capability3. equipped with a panel type high-speed printer 4. with good anti-interference performance Technical ParameterThree phase constant current source charging, charging current3A/1A;0.6A/0.2APort maximum voltage24VMaximum range of resistance100 ΩMeasurement range of excessive resistance1A : 0.4Ω~20Ω0.2A: 10Ω~100ΩWaveform record time length300msSampling rate30kTime resolution0.1msResistance resolution0.1ΩAccuracyExcessive resistance:0.5% reading±0.1ΩExcessive time: 0.5% reading±0.2msTemperature-10℃ ~40℃ Using relative humidity< 85%RH

  • PMT20030 - Transformer Polarity Tester

    Company: Power Measurement

    A hand held instrument for polarity identification of current, voltage and power transformers with an operable ratio range from 1:1 to greater than 5000:1.

  • ZC-203 - Transformer truns ratio tester

    Company: Kvtester Electronics

    Product Features1: Simple operation.2: Variable than the wide measurement range :1-9999.93: Powerful: while for single-phase measurements, while achieving a three-phase windings of automated testing, join groups can be arbitrary choice, a complete measurement of AB, BC, CA three-phase variable ratio, error, on-line groups and other parameters.4: Measurement speed.5: The completion of a measurement, automatic cut-off test power supply.6: Set of data, the measurement results is automatically saved, you can see previous data.7: Test-load transformer, enter only one turns ratio.8: Easy to carry, suitable for field work.Technical Parameters1: Variable than the measurement range :1-9999.9.2: Accuracy 1-999.99 0.2% 1000-9999.9 0.5%.3: Power: 220V ± 10%, 50HZ.4: Group :1-125: Operating temperature: -10-40 ℃.6: Environment humidity: less than 80% non-condensing.7: Size: 400 × 290 × 170MM 3

  • HYBC-901 - Transformer turn ratio tester

    Company: Wuhan Huaying Electric

    Test functions1.The voltage ratio measurement of three or singe phase transformer2.The group vector measurement of three phase transformer.3.The polarity measurement of single phase transformer or CT/PT (CT that knee-point voltage should be more than 80V)4.Voltage ratio error calculation 5.Voltage ratio range calculation of three phase transformer6.Current transformer ratio measurement7.Excitation current measurement in ratio testing8.Reproduction the AC test voltage from power source to reduce the effects of bad power source 9.Save the test results in the memory internal the tester10.Print the test results by micro printer11.Reverse connection detect unit to prevent the high voltage injected to the operate 12.Over current protection in test voltage13.Upload the test results to make word report by RS232 interface

  • ZC-206B - Transformer Winding Deformation Tester

    Company: Kvtester Electronics

    Product Features1. Use high-speed, high integration microprocessor to sample and control.2. Use USB to connect the notebook PC and device. 3. Use wireless blue-tooth interface to communicate the notebook PC and device. The high-speed microprocessor integrated with device, need not move the computer during the field test.4. Hardware cassette mechanism adopts DDS (from America), can correctly detect the breakdown :distortion, swell, shift, tilt, inter-turn short circuit deformation and contacting short circuit inter-phase.5. High resolution dB to test, dual channel, 16 bit A/D sampling (the wave from curve will change obviously if change the tapping switch during the field tests. )6. The software can adjust the output signal range, the maximum amplitude peak±10V.7. The computer automatically generating the test results to be Word document.8. Use precision , high stability components, repeat to test , the measurement repetition rate >99.5%.9. Finished circuit boards, the surface with special treatment.10. The device with two measurement system: linear scan and sectional scan.11. Amplitude-frequency characteristic complies the national technical specifications. 12. Test data automatic analysis system, horizontal compare the similarity of A,B ,C, the results as below:①conformance is very good②conformance is good③conformance is bad④serious deformationVertical compare A-A、B-B、C-C, obtain the original data to compare the winding deformation with the test data in the same phase, the results as below:①normal ②slight deformation③moderate deformation④serious deformation13. Automatically generating Word document,convenient for customers to save and print.14. Totally meet the technique conditions of DL/T911-2004:Survey of Frequency Response Analysis on Winding Deformation of Transformers. Technical ParameterScanning modelinear scan distributionSweep frequency measurement range(1k Hz)~(2MHz) 2000 Sweep frequency point ; resolution ratio 1kHz rangeMeasurement accuracy0.1dBScanning frequency accuracy<0.01%Scanning measurement range(0.5kHz)-(1MHz) 2000 Sweep frequency(0.5kHz)-(10kHz) resolution ratio 0.02kHz(10kHz)-(100kHz) resolution ratio 0.02kHz(100kHz)-(500kHz) resolution ratio 1 kHz(500kHz)-(1000kHz) resolution ratio 1 kHz

  • ZC-204B - Transformer Winding resistance Tester

    Company: Kvtester Electronics

    Product Features1. LCD screen, data can be read clearly even in direct sunlight.2. Measurement data is accurate.3. Single phase measurement mode. When selecting transformer connection, each phase short circuit resistance can be obtained automatically after three times measurements.4. Voltage, current and power can be measured at the same time. The frequency of imposed power supply is also measured.5. With memory to storage data.6. Small size and light weight. Technical ParameterMeasurement accuracy: Voltage, Current :0.2classPower: Cosϕ>0.1:0.5 class; Cosϕ≤0.1:1.0classImpedance: Cosϕ>0.1:0.5 class; Cosϕ≤0.1:1.0classVoltage measurement rangeAC 3V~300VInternal power output rangeVoltage: 0~250V Current: 0-10ACurrent measurement rangeAC 0.2A-20AWorking temperature-10 °C~50 "°CWorking humidity0~80%Working power supplyAC 220V±10% 50Hz±1HzOutline dimension360mm*220mm*150mmWeight5KG

  • GZD205 - Transformer DC resistance tester

    Company: Shijiazhuang Handy

    DC Output:0.05A、0.5A、5A Measuring Range:1μΩ-4KΩ Resolution:1μΩ Error:±(0.2%R+2个字) Power Supply:AC220V±10% 50HZ Environment:-10℃-40℃ Hu<85% Dimension:403mmX330mmX178mm Weight:5kg

  • HTBS-V - Transformer Dissipation Factor tester

    Company: Wuhan Huatian Electric

    This equipment according the JB/T501-91 : power transformer test regulation and GB1094-96: power transformer , can test voltage, average voltage, power, frequency, and others parameters for the single and three phase transformer, accuracy is 0.1.With intelligent and professional designs, it applies to no-load, load, inductance tests for transformer. It is the ideal renewal equipment for traditional pointer type devices

  • ZC-202 - Transformer Dissipation Factor tester

    Company: Kvtester Electronics

    Product Features1. Can test the transformer on load current, no load losses, short circuit voltage, short circuit (load) losses 2. Can make harmonic test, can analyze 31 harmonic.3. The device auto-switch the measurement range, wide range for voltage, current test, easy to connect wire.4. The device can auto check if the wire was correctly connected, and display the vector diagram of three phase current, voltage when test the three phase transformer.5. Single machine can make the loading test for substation transformer under 1000KVA; can make the loading test with 1/3 of the rated current for substation transformer under 3150KVA (the device can convert to the loading losses parameters if the rated current under 1/3 of the rated current)6. All test results can be auto calibrated. It can calibrate following: wave form, temperature, non-rated voltage, non-rated current, so improve the accuracy.7. 320x240 LCD, friendly man-machine interface, brilliance control, adapts to all seasons. 8. The device can preset 40 groups parameters ,and these parameters can be added or deleted according users needs.9. With electronic clock, auto record the data, time , it is good for saving and managing the test results.10. Panel type printer can print the test results on site.11. Data (specimen setting, test results, measurement time) can be saved on power failure and can be reviewed, it can store 500 groups test results, can connect with computers to transmit data. 12.allow external connecting CT and PT to make extension measurement, can test the specimen with any parameters. Technical ParameterMeasurement Range: Voltage10-650VCurrent0-100AFrequency45Hz-65HzAccuracy: voltage, current, frequency0.2Power measurement error<0.5% (Cosϕ>0.1), ±1.0% (0.02<Cosϕ<0.1)

  • TAC1000 - Tack of Adhesive Tester

    Company: Rhesca Co. Ltd

    Pressure-Sensitive Tack of Adhesive Test equipment, measure adhesion of solder paste, tape and other adhesive materials. This method is to measure the adhesive force by pressuring and separating the adhesive side of samples, using the probe

  • Tangent Delta Tester

    Company: DSE Test Solutions

    In order to make reliable and accurate Tangent Delta Temperature curves, we have refined our instruments over many years. Available today are: TD9000, TD5 and our latest Tangent Delta product, The TD3. They all measure a full curve for the D value (loss factor) as a function of the temperature.

  • KJ-6005 - Tape Retentivity Tester

    Company: Dongguan Kejian Instrument

    It does some loading tests deriecting at adhesive force. Place 1 inch tape onto SUS#304 stainness steel plate and roll it by the standard rolling ball at 300mm/min three times. Hang the steel plate up and add stated weights. The clock will auto-record the time when weights drop down and this represents adhesive force of tape.

  • SG-S03A - Tape Retentivity Tester

    Company: Jinge Testing Machine

    Roll one end of tape adhering to test plate, hang a specified load on lower end and then measure the distance of slide after a certain time.

  • KJ-3050 - Taber abrasion tester

    Company: Dongguan Kejian Instrument

    This machine is used to do the test of wear-resistant in surface, leather, cloth, paint, paper, flooring, plywood, glass and natural rubber,concrete and ceramics. The method is using the standard knife cutting the specimen, and then using the regulated models of grinding wheel with loading weight to be abrased. Remove the specimen after rotation to reach a centain number, and then observe the condition of the specimen or compare the weight with the previous materials.