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
Salt Spray Test Chamber
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Dongguan Kejian Instrument Co., Ltd.
Corrosion resistance salt spray testing machine can be used to determine the corrosion resistance of inorganic or organic coatings of ferrous or non-ferrous metals, such as electroplating, anodizing, chemical processing, painting and other surface treatments.
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Product
Installation Testers
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Offers two models that verify the safety of electrical installations in residential, commercial and industrial applications. Has been developed to carry out the following safety measurements of electrical installations in accordance with EN 61557 and DIN VDE 0100: Insulation resistance, RCD tests, Low Ohm resistance, Earth ground resistance, Loop impedance, Phase sequence.
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Product
Earth Ground Test Lead Kit
TL-796
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*Earth Resistance Test Lead Kit*For use with IDEAL 61-796 3-Pole Ground Resistance Tester
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Product
DC Resistance Tester
ZLD-10
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Shanghai Dean Electrical Co., Ltd
Executive standard: GB/T4074.5-2008/IEC60851-4; Inspection standard: JB/T4279.2-2008Used to measure conductor with nominal diameter ≥0.01～9.0mm or various round or flat copper and aluminum wires and other metal wires with DC current resistance of 100μΩ～99.99Ω;Combination of intelligent DC conductor resistance measuring meter and DC resistance test fixture with sample straightening function;Test range can be selected according to the resistance value of sample, and after clamping samples current resistance value would be displayed;Both potential fixture and current fixture are made of copper;The application of microcomputer control allows for full-automatic completion of test;LED will intuitively display measurement results;
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Product
EBIRST 8-pin Male Power D-type Termination Fixture
93-012-103
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
Programmable AC/DC Hipot & Insulation Resistance Tester
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Shenzhen Chuangxin Instruments Co., Ltd.
Programmable AC/DC Hipot & Insulation Resistance Tester can do hipot test and insulation resistance test.
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Product
Three-Phase Transformer Winding Resistance Meters
TWA Standard Series
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When it comes to winding resistance measurement on three-phase power transformers and autotransformers, TWA Standard series offers some of the most technically advanced instruments with LCD display in the market. Both models are capable of testing six transformer windings with a one-time cable connection, as well as three-phase automatic transformer demagnetization. The stored magnetic energy is safely automatically discharged at the end of the test. The built-in tap changer control unit enables automated test mode, where the instrument operates the tap changer without operator input and records winding resistance results based on pre-selected stabilization criteria. This option makes the operator’s job significantly easier.Both models can output test currents from 5 mA to 25 A DC for the purpose of winding resistance measurement. TWA40D has a special test mode for checking the synchronization of on-load tap changers with three phases simultaneously tested in parallel, in which the total test current can rise to up to 40 A DC.TWA40D has additional advantages when it comes to non-intrusive tap changer analysis. The unique DVtest method 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, simultaneously with the measurement of tap changer motor current which helps with the detection of 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 on three phases simultaneously. It can also be performed as an additional test simultaneously with the winding resistance test in all tap positions.An additional unique advantage of TWA40D 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 shorten the total testing time – for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.The test leads for TWA three-phase transformer winding ohmmeters are interchangeable with the TRT turns ratio testers, which means that both sets of tests can be performed with a single test lead connection to the power transformer terminals.
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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
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
Electrical Networks Control System
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Electrical networks control system is intended for measurements of network electrical resistance and insulation electrical resistance of the tested specimen. The measurement process takes a couple of minutes.
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Product
STDETransformer Demagnetizer
STDE
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This option allows neutralizing the residual magnetization of the power transformer core after the winding resistance test. The principle of the option is to apply a constant current of alternate polarities to the transformer winding, as per the IEEE 0062 1995 standard.
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Product
Oil Resistivity Test System / Million Meg Ohm Meter (MM1)
OTD-45
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UDEYRAJ ELECTRICALS PRIVATE LIMITED
Model : OTD-45OTD-45 is single self contained unit containing oil test cell, high frequency induction heating with temperature controller/sensor; dielectric loss measuring bridge, AC test voltage source, SF6 filled standard capacitor; high resistance meter; DC voltage source and all digital circuits.
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Product
Wound Component EST Analyzer
19036
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Chroma Systems Solutions, Inc.
The industry’s first Wound Component Electrical Safety Test (EST) Analyzer that combines impulse winding, AC/DC hipot, insulation resistance and DC resistance test measurement functions. Chroma’s 19036 Wound Component EST Analyzer has 5kVac/ 6kVdc high voltage output, 5kV insulation resistance, 6kV layer short impulse voltage and 4-wire DC resistance measurement with a maximum output of up to 40 channels. Capable of outputting and measuring AC100mA/DC 20mA, Chroma’s 19036 is suitable for testing to high power motor standards such as UL 1004-1.
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Electrical Safety Tester
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Basic testing methods of Glow wire device> and UL 746A, IEC829, DIN695, VDE0471, the Glow wire tester ZRS-3H/ZRS-3HS is suitable for resistance to abnormal heat and fire test on lighting lamps, electronic products and household appliances. Adopting high-temperature coating spraying on steel structure and imported instrument display, with easy operation, stable performance the equipment is applicable to flame resistance tests of all levels of QC departments and corresponding enterprises.
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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
EBIRST 104-pin D-type To 96-pin SCSI Adapter Cable
93-022-226
Adapter Cable
The 93-002-226 104-pin to 96-pin eBIRST adapter cable 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
Kelvin Contact Test
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C.C.P. Contact Probes Co., LTD.
We offer different tip types for low resistance testing.
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Product
DIN Abrasion Tester
UI-FT24
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DIN Abrasion Tester – DIN Abrader(Abraser) is a Rotary Drum Abrasion Tester of rubber testing instruments to test abrasion resistance of rubber, shoe sole. DIN abrasion test method meets ISO 4649, DIN 53516, ASTM D5963, SATRA TM174, and other abrasion resistance test method.
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Product
POWER PROBE MAESTRO
PPTM01AS
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*Connects with the new Power Probe Tek application for greater diagnostic functionality*The Maestro and Power Probe Tek App will be compatible to connect with a majority of diagnostic scan tools*Trace mode offers scope-like functionality*Stream and record visual traces of electrical issues found when diagnosing*DC voltmeter with the capability of applying battery supplied voltage or ground*AC voltmeter: TRMS, peak-to-peak/min/max, frequency, duty cycle*Resistance testing with a live or unloaded circuit*Fuel-injector test mode*Driver test for testing module drivers
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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
EBIRST 96-pin SCSI Termination Fixture
93-016-103
Termination Fixture
93-016-103 eBIRST Termination Fixture 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
Thumpers and Cable Fault Location
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Cable testing can be broken down to different steps of the process, starting with a time domain reflectometer test to look for an incident signal on the line or, in some high resistance situations, VLF testing. These tests will identify a fault, allowing you to move on to pre-locating it. In some low resistance faults this will occur alongside the identification via the TDR.
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Product
Tire Rolling Resistance Test System
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This system measures the rolling resistance of each tire accurately. In addition to the simultaneous measurement of tire loss resistance and rolling resistance coefficient for each drive by mode operation (JC08, WLTC), coasting test, constant acceleration/deceleration test and transient mode test are able to be performed. Furthermore, measurement of driving noise/ vibration of the tire, effect of the tire loss due to the temperature change can be verified by adding options.Conforming the JIS D 4234: 2009 and ISO 28580: 2009.
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Product
EBIRST Slave Mode Connection Cable
93-970-301
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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 Meter for Electrical Installations
AMPI-530
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Measurement of short-circuit loop ; Testing of differential, general and selective protections for differential current ; Measurement of insulation resistance ; Up to 10GΩ ; Voltages: 50 V, 100 V, 250 V, 500 V, 1000 V ; Measurement of earth resistance ; Bi-directional continuity test on PE cables, phase sequence ; Measurement and recording of voltage, frequency, alternating current, cosϕ, power, harmonics and THD
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Bench Digital Multimeter, Calibrated, 1 kV, 10 A, 3.8 Digit
72-1015 CAL
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The 72-1015 CAL from Tenma is a digital bench type true RMS multimeter. It has auto and manual range options with maximum reading of 5999 counts and 3-5/6 digits which has a unique outlook design. In addition to all the conventional features including DC/AC voltage, current, resistance, diode, continuity test, diode test capacitance, temperature, transistor, max/min, there is a data hold, low battery display, sleep mode, RS232C serial port for easy connection with computer to realize macro recording, monitoring and capture of transient dynamic data, displaying change of waveform during the measurement, providing data and evidence to engineering technicians for scientific research. This meter complies with the standards IEC61010, pollution degree 2, overvoltage category (CAT I 1000V, CAT II 600V) double insulation and CE marked.
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Product
Multimeter w/ Insulation Measurement
HT701
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Professional TRMS multimeter with 10.000 measuring spots and measurement of insulation resistance with selectable test voltage between 50, 100, 250, 500, 1000VDC.
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Dry Arc Resistance Tester
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Dry Arc Resistance Tester is designed to conduct high voltage,low current Arc Resistance test on solid electrical insulation material as per:ASTM standard D495-99 (2004) and UL 746A. Why Arc Resistance Test? Many Cases of insulator failure are due to deterioration of its surface because of sustained electrical discharge or Arc. This test method is intended to test the resistance of insulating material when a high -Voltage low -current Arc close to the surface of insulation, intending to form a conducting path therein or in causing the material to become conducting due to decomposition and erosion.AdvantagesThis Test ensures that your products meet high standards of quality & safety. This product is meant for all Switchgears/ insulator/ Polymer/ electro plastic manufacturers and manufacturers who use insulators in their products e.g. Wiring Accessories, Appliances, HT/LT line insulators etc.
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DC Resistance Tester
2511
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Shenzhen Chuangxin Instruments Co., Ltd.
DC resistance tester. Resistance test range: LW-2511: (10µΩ—2K five shift). Test speed:6 times/fast. Test accuracy:0.2%±2digits。
