Resistance Test
measured in ohms is the ability of a current to conduct.
See Also: Resistance, Resistivity, Resistance Standards, Resistance Meters, Battery Internal Resistance Testers
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Product
Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
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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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Product
HIGH VOLTAGE MEGOHMMETER
MI-20KVe
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The MI-20KVe High-Voltage Megohmmeter is a truly portable device that allows the measurement of insulation resistances using test voltages up to 20 kV. It employs a state-of-the-art technology for the safe measurements of insulation resistances up to 4.000.000 MΩ with four test voltages: 5 kV - 10 kV - 15 kV and 20 kV. Readings are performed through an easy-to-read analogue indicator, having a broad scale.
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Product
Electrical Safety Testers- Hipots
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Safety testers (also named hi-pot tester/hipot tester/hipot test) are designed to ensure safe operation of DUTs under various operating conditions and environment.GW Instek’s GPT-9900/GPT-9800/9600 series safety testers(hipot test) provide safe and quick measurement tools for AC/DC withstanding voltage tests, insulation resistance tests, and AC ground bond tests. Those tests are required by many international safety regulations such as CE, UL, VDE, and etc. We also have leakage current tester, GLC-9000, which supports all the major leakage current test standards for medical and general electronic equipment.
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Product
UV Resistance Test Chamber
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The UV Weather resistance test chamber is the world’s most widely used weathering tester to test types of damages include color change, gloss loss, chalking, cracking, crazing, hazing, blistering, strength loss and oxidation.
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Product
Decay Accessory Set
PGB-745
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- Designed for measuring charge movement and decay time of ESD controlled materials- The set consists of two stainless steel electrodes and two very high resistance test leads selected for this application- The high resistance leads minimize leakage during the test cycle and are equipped with male banana plugs
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Product
Programmable Withstanding Voltage & Insulation Test
LS9923
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LS9923 programmable withstanding voltage & insulation test system is high-performance testing device special for AC&DC Withstanding Voltage and Insulation Resistance Test, It allows setting the output voltage. The warning value,testing time and some other parameters can be set in the screen.It with a variety of automatic test functions. The testing is quick and high accuracy which is not only applied in the production line but also in the develop research.
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Product
Locomotive Testing
DC7000
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A purpose-built load bank for the performance testing of engines and generators of all types of diesel electric locomotive up to 4000hp rating, with easy-to-use resistance adjustments allowing tests to be carried out over the whole power envelope. Capacity 0 7000A continuously at up to 2000V DC
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Product
Portable Winding Resistance Tester
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1. Handheld winding resistance meter2. Conversion function for standard temperature resistance.3. 500 test data can be saved and download by flash disk.4. Temperature testing function.
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Product
Insulation Testers
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Kyoritsu Electrical Instruments Works, Ltd.
The insulation resistance (IR) test (also commonly known as a Megger) is a spot insulation test which uses an applied DC voltage (typically either 250Vdc, 500Vdc or 1,000Vdc for low voltage equipment <600V and 2,500Vdc and 5,000Vdc for high voltage equipment) to measure insulation resistance in either k, M or G.
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Product
Micro-Ohmmeters
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The Micro-ohmmeter performs reliable low resistance measurements with test currents to 10A and resolution to 1. Uses a four-wire Kelvin bridge method, which eliminates test lead resistance for a measurement accuracy of 0.25%.
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Product
EBIRST 78-pin D-type Verification Fixture
93-006-101
Verification Fixture
The 93-006-101 78-pin D-type Verification Fixture is an accessory for the eBIRST range of USB controlled test tools capable of performing automated path resistance tests on Pickering Interfaces switching solutions. The tool simply interfaces with the switching system's connector so a test can be run using the supplied Windows-based software.
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Product
Footwear Testing Machines
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Dongguan Amade Instruments Technology Co., Ltd
Footwear testing machines are designed to determine a variety of mechanical and chemical performances of different types of shoe materials and finished shoes including sneakers, high-heeled shoes, leather shoes, casual shoes, etc. There are appearance performance tests including yellow resistance test, ageing resistance test, fastness resistance test, etc, physical performance tests containing flexing resistance test, rubbing resistance test, anti-slip test, etc, biological and chemical performance tests covering PH test, Formaldehyde content test, flame retardant test, etc, and service life test. Applicable to standards of ISO20344, SATRA, ASTM, etc.
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Product
Wound Component EST Scanner
19035
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The quality verification tests for wound components consist mainly of AC/DC Hipot tests and insulation resistance (IR) tests. The Chroma 19035 wound component EST scanner series perform safety tests for motor, transformer, and heater related wound products.
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Product
Insulation Tester
Calibrated 1kV Megohmmeter
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*Calculations (automatic)*Potential Index and Dielectric Absorption Ratios*Tests Continuity, Resistance and Frequency Measurements*Programmable Alarms*Insulation Test, Resistance, Continuity*Hazardous Voltage Alert (Icon) if voltage is >70 volts 5.) On Board Timer, +1/- 1 sec.
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Product
Non-Contact Resistance Online Tester
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Non-Contact Resistance Online Tester is our company devotes ourselves to Grounding resistance test technical research’s another new high-tech product for more than ten years. Detector adopts weather fastness material manufacture, temperature resistance, cold-resistant, corrosion prevention, fire prevention. Detector’s structure is rigorous and firm, against rain, dustproof, installation and use outdoors. Non-contact measurement, safe and reliable, Ease of installation. Grounding down lead is directly through the detector perforation, Will not affect lightning protection grounding effect and the normal operation of the facilities. Ensure high-accuracy, high stability and high reliability of long time on-line monitoring outdoors, underground mine and indoors.
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Product
EBIRST 104-pin D-type Test Tool
93-022-001
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The 93-022-001 eBIRST 104-pin D-type test tool is part of a range of USB controlled test tools capable of performing automated path resistance tests on Pickering Interfaces PXI, LXI or PCI controlled switching solutions. Each tool simply interfaces with the switching system's connector so a test can be run using the supplied Windows-based software.
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Product
Combination Measuring Devices According to DIN EN 61557-10 (VDE 0413-10) are permitted
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PeakTech Prüf- und Messtechnik GmbH
This innovative combination measuring device for testing electrical installations according to official laws convinces with its technical performance data in the high-end area. All important safety tests such as FI, voltage, loop, low-resistance, earth resistance and insulation tests for e-checks and new installations can be carried out safely by the electrician via the large 3.5“ TFT color display. Of course, the device comes with an extensive range of accessories, such as all necessary test leads, adapters, rods and the required software CD for the PC. The device can be charged with a power adapter or via a car adapter. During the daily use, this high-quality device is protected against dust and all-round water jets by its protection class IP 65.
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Product
Transformer Heat Run Tester
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1. Suitable for all transformers below 240MVA heat run test and winding resistance testing.2. Printing heat run data automatically.3. With double power supply, can test high voltage side and low voltage side simultaneously and test any operation respectively.4. With anti breakage protection function of inductive test items.
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Product
Wide Range Ohmmeter
PAS-853B
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- Wide Resistance Measurement Range from 0.01 ohm to 9.99x1012 ohms- Nominal Full Range Tolerance Averages <±5%- Fully Automatic Resistance Range, Test Voltage and Electrification Period Control- Automatic or Continuous Electrification ControlRugged High Performance 80 inches (200cm) Test Leads Included- Powered by one long lasting 9V Alkaline Battery- Large, Easy to Read LCD Display- Meets requirements of ESD Association Standards for material and audit resistance measurement requirements- Certificate of Calibration Traceable to NIST included
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Product
AC/DC Digital Clamp Tester (CE)
M-270
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Wide current measurements with tear drop type 55mmφCT up to 2000A.*True rms reading for ACA and ACV.*Data-hold and Auto power off function.*Additional AC/DC voltage, resistance, diode test, continuity check.*Auto zero adjustment for DC current offset.*Conform to IEC safety requirements.
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Product
Multifunction Electrical Installations Meter
MPI-525
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Possible measurementsShort-circuit loop measurement:*impedance measurement with 23 A current (44 A phase-to-phase) - short-circuit resistor R=10,*measurement range: 95...440 V, frequency 45...65 Hz,Short-circuit loop measurement with resolution 0,01, in distribution network without tiggering RCD (In30 mA):*automatic calculation of short-circuit, detection of phase voltage and phase-to-phase voltage,*additional UNI-Schuko plug for automatic measurement, AGT adapter for 3 phase network measurement.Testing of general and selective RCD with the rated differential current of 10,30,100,300,500 and 1000 mA. (Type AC, A and B).Measurement of insulation resistance:*with test voltage 250 V, 500 V, 1000 V, 2500 V,*measurement range up to 10G,*automatic discharging after measurement,*automatic measurement of all resistences in 3,4,5-wire cables using optional adapter AUTO-ISO,*acoustic signals in 5 sec intervals for insulation resistance characteristic,*elapsing T1, T2, T3 times (0...600 s) form measurement of absorption coefficients (DAR, PI or Ab1, Ab2)*safety measurement - protection against overvoltage.Measurement of earthing resistance.Bi-directional testing of PE wire continuity using 200 mA current.*Autocalibration of test leads.
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Product
Extremely Accelerated Stress Test Chambers
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The extremely accelerated stress environment is defined by high temperature, high humidity and high pressure. WEIBER provides humidity resistance evaluation test for electronics components through customized Extremely Accelerated Stress Test Chamber. This chamber provides high performance test in minimal amount of time according to international IEC 60068-2-66 standard. This chamber also known as Accelerated Stress Test Chamber, Halt and Hass Test Chamber, Halt Test Chamber and Hass Test Chamber.This chamber reduces the time taken for humidity testing in electronic components. 2 types of tests saturated and unsaturated extremely accelerated stress test can be performed. In saturated test the temperature is maintained at 1210C at 100%RH, and for unsaturated temperature of 110, 120, 1300C is maintained at 85%RH. Normally for electronic components unsaturated type test is done.
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Product
EBIRST 68-pin Male SCSI Termination Fixture
93-015-103
Termination Fixture
eBIRST is a range of USB controlled test tools capable of performing automated path resistance tests on Pickering Interfaces PXI, LXI or PCI controlled switching solutions. Each tool simply interfaces with the switching system's connector so a test can be run using the supplied Windows-based software.
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Product
Earth Contact Resistance Tester
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SCR ELEKTRONIKS have developed an equipment namely Earth Contact Resistance Tester to test the appliance. To ensure the safety of operator it is essential that the Earth path (connection) should offer minimum impedance to by pass short circuit Current to Earth. This is ensured by measuring Resistance of the Earth path by passing heavy Current say 25 A. The Earth Contact Resistance Tester essentially comprises of a Variable Current source with digital Ammeter to measure the Current supplied. The Voltage drop across the Earth path is measured with a digital Voltmeter. Optionally for a particular Current (25 A) the meter can be calibrated in terms of Resistance. A timer is provided to switch off the Current after the Set Time.
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Product
SMD Tester Capacitance Resistance Diode Tweezers Test Pen Multimeter SMD Meter
VA503
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Shanghai Yi Hua V&A Instrument Co., Ltd. CO.,LTD
SMD tester Capacitance Resistance Diode Tweezers Test Pen Multimeter SMD Meter. SMD Components Identifier
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Product
Test Probes
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Our innovative Test Probes are the upgrade version of Auto Multi Meter. It can perform multiple circuit system test such as power supply feed, voltage and resistance measurement, continuity test, ground test, polarity check and components activation.
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Product
EBIRST 200-pin LFH Test Tool
93-002-001
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eBIRST is a range of USB controlled test tools capable of performing automated path resistance tests on Pickering Interfaces PXI, LXI or PCI controlled switching solutions. Each tool simply interfaces with the switching system's connector so a test can be run using the supplied Windows-based software.
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Product
Multifunction Tester
M70
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M70 is a mobile device dedicated to measuring Insulation resistance with test voltage up to 1000VDC and Continuity of protective and equipotential conductors with current of 200mA in private and industrial electric installations.
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Product
Transformer Winding Resistance Testers / TRT ? 2
TRT-2
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UDEYRAJ ELECTRICALS PRIVATE LIMITED
Fast measurement: Test current 0.02A to 2A DC, Digital display of resistance and test current.
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Product
Insulation Testers
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Shenzhen Everbest Machinery Industry Co.,Ltd.
The insulation resistance (IR) test (also commonly known as a Megger) is a spot insulation test which uses an applied DC voltage (typically either 250Vdc, 500Vdc or 1,000Vdc for low voltage equipment <600V and 2,500Vdc and 5,000Vdc for high voltage equipment) to measure insulation resistance.
