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
VCS
Harmonic Vibration
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The Harmonic vibration program is intended for harmonic oscillations resistance testing within the specified frequency range or at a fixed frequency during the set time interval.
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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
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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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
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
Safety Test Panel for Water Cooler
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Electrical Safety is the most primary and essential product conformity requirement for any product that uses electricity. The clauses of safety testing of electrical products laid by worldwide agencies such as UL, CE, BIS, etc. are stringent. The products need to pass through tests such as the high voltage test, insulation resistance test, earth bond test, leakage current test and so on. And to conform to such tests, SCR Elektroniks have developed for the testing of washing machines. In addition to the conventional safety tests, test for performance is also included.
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Product
Safety Testing Equipment
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Shenzhen Bonad Instrument Co., Ltd.
BONAD provides safety testing solutions and safety testing equipment, including UL1439 Sharp Edge Tester, Range Hood Air Volume Measurement Test Device, Spring Impact Hammer Calibration Equipment, Scratch Resistance Test Machine, Adjustable Universal Energy Spring Impact Hammer, IK Vertical Hammer Impact Tester. For more information, please contact us, BONAD will provide you with professional technical advice and high-quality testing equipment.
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Product
Digital H.V. Insulation Tester
8PK-4103IN
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Digital high voltage insulation tester 5kV digital tester with 500V increments and high voltage warning alarm. Test voltages from 500V to 5kV in 500V increments. Measure insulation resistance to 300G. LCD display indicates test voltage, test duration and insulation resistance. Measures insulation test voltages up to 5kV and insulation test time. Insulation resistance, autoranging on all ranges. Automatic external live voltage warning. High voltage applied warning buzzer. Complete with built-in heavy duty carrying case, test leads and 8 type C batteries.
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Product
Large Current 1000A Primary Current Injection Test Set
TEST-901
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Beijing GFUVE Electronics Co.,Ltd.
TEST-901 primary current injection test set adopts ARM Chip to control its output process and large capacity of toroidal transformers. It is equipped with LCD display and current meter; it can show primary current value, second current value, turn ratio and the action time. Packing is used as aluminum alloy body with PC panel. TEST-901 is mainly applied to CT turn ratio testing in the power system and contact resistance test which need large current.
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Product
Moisture Resistance/ Humidity Test
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This test is performed for evaluating the resistance of component parts and constituent materials to the deteriorative effects of the high-humidity and heat conditions typical of tropical environments. Most tropical degradation results directly or indirectly from absorption of moisture vapor, and from surface wetting. These phenomena produce many types of deterioration, including corrosion of metals; physical distortion and decomposition of organic materials; leaching out of constituent components of materials, and detrimental changes in electrical properties.
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Product
LifeTest Software
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In combination with the extended range of PEC test equipment, LifeTest supports the many specific functionalities required in battery testing labs. Drive cycle simulations (FUDS, DST…), thermal performance tests, high speed pulse tests (HPPT), life cycle tests, accelerated ageing tests and internal resistance measurement tests can be easily configured, scheduled, executed and reported from a single platform.
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Product
Hybrid Wound Component EST Scanner
19035
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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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Digital Igniter Tester
Alpha 4314
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The Alpha 4314 Digital Igniter Tester is a portable digital ohmmeter which has been specifically designed for ultra-safe resistance testing on explosive devices (i.e. squibs, detonators).
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Cable & Insulation Testers
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A cable insulation resistance test is a test that is performed by applying 500 V or more between the conductor and ground and measuring the resulting leakage current. An insulation resistance tester is a test instrument that measures current that leaks through the insulation into ground. Insulation resistance tests can be performed with insulation multi- meters (IMMs) or megohmmeters. Insulation resistance testers are calibrated to display megohms (MΩ) of resistance. A satisfactory insulation resistance measurement should be in millions of ohms.
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Product
IEC60558 Insulation Material Layer Abrasion Resistant Test Device
CX-J16
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Shenzhen Chuangxin Instruments Co., Ltd.
This test is conforms to IEC60558-1 Fig6 and IEC60065 Fig14--16.The test shall be performed by fixing the specimens of thin sheets on a mandrel made of nickel plated steel or brass with smooth surface finish.
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Product
Hand-In Type Electromagnetic Anechoic Box (Shield Box)
MY3720
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Suitable for weak electric field resistance test, out-of-service test or digital forensics for smart phone, tablet terminal or mobile PC ! !DUT can be operated directly with bare hands while placing it in the box and looking at the inside from the shield window.
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Product
EBIRST 104-pin D-type To 100-pin SCSI Adapter Cable
93-022-245
Adapter Cable
The 93-002-245 104-pin to 100-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
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
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
Digital Insulation Multimeter Tester 1 KV
MIRT-61
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The Motwane Manufacturing Company
The MOTWANE multipurpose tester Model MIRT-61 is a Versatile, battery operated Digital insulation tester with true RMS industrial grade multimeter features best suited for industrial preventive maintenance. With test voltage range up to 1 KV , highest insulation resistance range of 6G Ohm and multi featured function of RMS multimeter (i.e. AC/DC 1000 V) ; makes it a superior offering for Industry and Service segment. It is designed predominantly for low voltage insulation resistance testing in maintenance and services, which involves the applications like Cables/Wires, Rotating Machines, LT transformers, Switchgears and Industrial installations. It is designed to suit the extreme environment conditions. Save your operating cost and test more with this single box design rather buying two different products.
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Product
Insulation Resistance Measurement
MI15KVe
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The MI-15KVe High-Voltage insulation tester is a truly portable device that allows the measurement of insulation resistances using test voltages up to 15kV.
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Product
Milliohm Meter
MO-100
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Diagnose potential failure with the MO-100, portable battery powered milliohm meter. Quickly check windings opens or shorts in motors, generators and transformers, wire-to-wire connection resistances, heating elements testing and contact resistance in critical electrical connections.
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Product
Multi-Test Resistivity Measurement System
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Sheet resistance mapping of thin films with a collinear 4-point probe, Temperature co-efficient of resistance (TCR) of thin films with collinear 4-point probe, Precision temperature co-efficient of resistance (TCR) with 2-point Kelvin probes and precision surface temperature probe, resistor testing with 2-point Kelvin probes,Precision resistor testing with a Kelvin probe card, temperature co-efficient of resistance resistor test (TCR), and Standard TCR test of multiple resistors with Kelvin probes or a probe card.
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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 78-pin D-type Test Tool
93-006-001
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The 93-006-001 eBIRST 78-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
Water-cooled Light & Weather Fastness Tester
TF422
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TESTEX Testing Equipment Systems Ltd.
Xenon Lamp Weather Resistance Test Chamber, to determine the color fastness, aging resistance of textiles, plastics, rubber products or materials by objecting to the simulated conditions of nature weather (daylight, rain, temperature and humidity, etc.). Water-cooled Light Fastness Tester complies with ISO105 – B02 / B04 / 06, AATCC 16, AATCC 169, etc.
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Product
Motor Winding Ohmmeter
RMO-M Series
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The motor/generator winding resistance test is used to identify open windings, shorts between two windings, short to grounds, connection mistakes or shorted turns. This non-invasive test of winding resistance helps to pinpoint problems regarding windings in stator or rotor part of an electrical machine. Additionally, motor winding ohmmeter has the capability of performing heat run test which will show a change in windings resistance with an increase of temperature.The RMO-M series is designed as an ideal aid in preventive maintenance of electrical motors and generators. They are powerful (up to 100A of test current), portable (8 kg) and generate DC current which is completely ripple-free. This makes measurement very precise with 0,1% accuracy.Three voltage channels make measurement very easy since it is possible to obtain a value of all three winding resistances in one measurement
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Digital Multimeters
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The Gamma series consists of digital multimeters. They are capable of measuring electrical parameters like current, voltage, frequency, temperature, resistance, diode test and continuity test of the circuit respectively.
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Product
Digital Clamp Tester (CE)
M-2010
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Data-hold and Auto power off function.*Conform to IEC safety requirements.*Additional AC/DC voltage, resistance, diode test, continuity check.
