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Contact Resistance

opposition to the flow of heat or electricity within a connection.


Showing results: 196 - 210 of 236 items found.

  • LXI Low Thermal EMF Matrix 1-pole 42x33

    60-510-002 - Pickering Interfaces Ltd.

    The 60-510 is a high density 1-pole matrix module controlled via LXI. It has excellent thermal stability and substantially reduced thermal EMF figures when compared to a conventional switching matrix. Typical applications include signal routing in ATE, selecting thermocouple inputs, switching amplifier gain circuits and high accuracy DC micro-volt measurements. Ruthenium reed switches are used because of their good low level switching capability. They also have a very long life with excellent contact resistance stability, minimal wetting current and low thermal offset.

  • Transformer Winding Resistance Meters

    RMO TT Series - Amperis sl

    The Tap Changer Analyzer & Winding Ohmmeter of the RMO-TT series is designed for winding resistance measurement of inductive objects, and for a tap changer analysis. The RMO-TT series is based on the state of the art technology, using the most advanced switch mode technology available today. The RMO-TT instruments are accurate (0,1%), powerful (up to 100 A) and still portable. The Instruments generate a true DC ripple free current with automatically regulated measurement and discharging circuit. RMO-TT instruments can perform a simple, quick and reliable transformer on-load tap changer condition assessment. This series of instruments enable measurements of a winding resistance in every tap position, current ripple values (percentage of a current drop during a tap change) and transition times during the tap changes. Problems with a connection, contacts, and selector/diverter switch operation (tap change with interruption) can be detected with these measurements.

  • 8 Function True RMS Multimeter

    Extech EX360 - Extech Instruments Corporation

    The EX360 is a Compact Electrical True RMS MultiMeter with a Built in Non Contact Voltage Detector. Featuring highly accurate True RMS measurements, LoZ for the prevention of false readings caused by ghost voltages, .5% basic accuracy, a 1000V AC/DC volt range, resistance up to 40MΩ, continuity beeper with visual alert, smart data hold, peak hold, auto power off with disable, relative mode for capacitance zero and offset adjustment. Additionally, the EX360 excels in frequency and capacitance measurement. Complete with test leads, 9V battery, holster with tilt stand and built-in magnet.

  • Circuit Breaker Analyzers & Timers

    CAT Handheld Series - IBEKO Power AB

    When it’s not practical to use conventional robust circuit breaker analyzers, a handheld circuit breaker analyzer and timer may come handy. DV Power has developed a unique CAT Handheld series. It is specially designed for testing of circuit breakers with one break per phase. Their compact and ergonomic design can provide a wide range of features and reliable operations in low, medium and high-voltage substations or in industrial environments.CAT Handheld series consists of two models, CAT-P and CAT-H. Both of them have a large (5,7 in) colored touch screen display. Because of that, test results are visible in dark places as well as in bright sunlight.Powerful internal Li-Ion battery of the instruments can last up to 8 hours of testing without recharging.CAT Handheld series records:main contacts operating times,contact synchronization,sequence time,a resistance of pre-insertion resistors,open and close coil currents,main contacts bounce time,auxiliary contact time,DC Voltage.Multiple operations, such as Open-Close and Open-Close-Open, can be initiated by using a predefined delay time or by triggering signal from current clamps connected to circuit breaker coil.CAT-H is capable of performing a coil control, while this feature is optional at CAT-P instrument. In contrast to CAT-H, CAT-P instrument can execute “First Trip” test.Both instruments display numerical and graphical results. Because of that, a user can easily overlay up to 4 records in the graphical form and make a quick on-site analysis of potential defects.A user can download test results to a PC via Bluetooth interface for more detailed analysis using DV Win software.

  • LED Tester For Ultra High Power

    WeiMin Industrial Co., Ltd.

    Electrical Testing: Forward:VF、DVF、VFD、IF、DIF   Reverse:VZ、DVZ、IR、DIR   AC:VAC、IAC、WAC、PFOptical Testing: can test LOP in cd/mcd/W/mW/lm... from different optical components   Wavelength λp,λd,λc,hw,purity,(x,y),CCT,CRIFour-wire measurement and contact resistance in case of deviation. Auto polarity identification and preheat function.Compatible mechanical interface.Optional ESD static test system.

  • Single Slot 3 U PXI Reed Relay Matrix Module

    40-540-021 - Pickering Interfaces Ltd.

    The highest density single slot PXI reed relay matrix module on the market today. This range also includes a 33x16 and 66x8 reed relay matrices with 1-pole switching. They are constructed using high reliability sputtered ruthenium reed relays, offering >10e9 operations to give maximum switching confidence with long life and stable contact resistance. Typical applications include signal routing in Functional ATE and data acquisition systems.

  • PXI-2585, 10‐Channel, 12 A, 1-Wire PXI Multiplexer Switch Module

    778572-85 - NI

    10‐Channel, 12 A, 1-Wire PXI Multiplexer Switch Module —The PXI‑2585 is a high‐power PXI multiplexer switch module that is ideal for switching power signals and loads in control applications and battery, power supply, and automotive testing. It is configured as a 10x1 multiplexer with both low contact resistance and high isolation voltage. It also features onboard relay counting for relay monitoring and deterministic operation with hardware triggers to improve test throughput.

  • PXI-2586, 10-Channel, 12 A, SPST PXI Relay Module

    778572-86 - NI

    10-Channel, 12 A, SPST PXI Relay Module—The PXI‑2586 is a general-purpose switch module that features independent single‑pole single‑throw (SPST) Form A armature relays. Each relay has low contact resistance and high isolation voltage. The PXI‑2586 is fully software programmable. It is rated for both high currents and high voltages, so it is ideal for switching power signals and loads in control applications and battery, power supply, and automotive testing.

  • Large Earth Resistance Tester

    WA 180 - Wuhan Sangao Electrical Test Installations Limit Co.

    WA180 Type Large earth resistance tester,To test substation earthing network(4Ω), Hydroelectric and Thermoelectric Power Plant,microwave(10Ω),lighting rod(10Ω)etc.Using new type variable frequency AC power supply, And adopts microcomputer control and signal processing measures, Solved the problem of interference of the testing process, To simplify the test procedure, To improve the precision and accuracy of the test results, reducing test personnel's the labor intensity and the cost of testing.The instrument can be used to test all kinds of power frequency earth resistance,contact voltage,step voltage etc frequency power parameters and soil resistivity. The instrument adopts the different frequency Anti-interference resistance technology, under strong interference environment accurately measured the frequency under 50Hz data.The maximum test current is 5A,it will not cause the earth device potential too high,and it also has strong anti interference ability, so it can be measured in the case of non power.

  • LARGE CURRENT 1000A PRIMARY CURRENT INJECTION TEST SET

    TEST-901 - 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.

  • 200A Digital Clamp Meter

    7128A - Peaceful Thriving Enterprise Co Ltd

    This is a auto-ranging, high accuracy and stable hand held clamp meter to make electrical maintenance safe and easy. With special designed IC to support true RMS, the meter is available to measure AC/DC voltage to 600V, AC current to 200A and resistance to 20MΩ; also having the capability to test diode, continuity and non contact voltage sensing. Sub switch included Function Select, Max-Min Indication, Value Hold, Range Select, Relative Value Measurement, Illumination and Back-light.

  • 600A Digital Clamp Meter

    7128B - Peaceful Thriving Enterprise Co Ltd

    This is a auto-ranging, high accuracy and stable hand held clamp meter to make electrical maintenance safe and easy. With special designed IC to support true RMS, the meter is available to measure AC/DC voltage to 600V, AC current to 600A and resistance to 60MΩ; also having the capability to test diode, continuity and non contact voltage sensing. Sub switch included Function Select, Max-Min Indication, Value Hold, Range Select, Relative Value Measurement, Inrush Current Indication, Illumination and Back-light.

  • LXI Low Thermal EMF Matrix 1-pole 14x33

    60-510-004 - Pickering Interfaces Ltd.

    The 60-510 is a high density 1-pole matrix module controlled via LXI. It has excellent thermal stability and substantially reduced thermal EMF figures when compared to a conventional switching matrix. Typical applications include signal routing in ATE, selecting thermocouple inputs, switching amplifier gain circuits and high accuracy DC micro-volt measurements. Ruthenium reed switches are used because of their good low level switching capability. They also have a very long life with excellent contact resistance stability, minimal wetting current and low thermal offset. The 60-510 is designed in accordance with the LXI Standard 1.4 and is supplied in a 2U high, full rack width case with 500mm depth.

  • 10 Function True RMS Multimeter

    Extech EX365 - Extech Instruments Corporation

    The EX365 is a Compact Industrial True RMS MultiMeter with a Built in Non Contact Voltage Detector. Featuring highly accurate True RMS measurements, LoZ for the prevention of false readings caused by ghost voltages, .5% basic accuracy, a 1000V AC/DC volt range, resistance up to 40MΩ, continuity beeper with visual alert, smart data hold, peak hold, auto power off with disable, relative mode for capacitance zero and offset adjustment. Additionally, the EX365 excels in frequency and capacitance measurements as well as commercial applications which require AC/DC current measurements from 1 mA to 10A. Complete with test leads, 9V battery, holster with tilt stand and built-in magnet.

  • Underground Cable Fault Locator

    KM-CFPL-620 /620B - Kusam Electrical Industries Limited

    “KUSAM-MECO” underground Cable Fault Pre-locator is an automatic Cable Fault Locator which adopts ARM, FPGA & Dot Matrix Color LCD display Technology. This tester combines both pulse reflecting technology (TDR) & (intelligent Bridge testing (Bridge) (Model-KM-CFPL-620B) for measuring the exact fault location such as broken line, cross faults, earthing, (poor insulation & poor contact of the lead covered cables as well as plastic cables. (Model-KM-CFPL-620B)).It is a microprocessor based fault locator with a user friendly menu. It is easy to operate. It tests almost all telecom & signal cables. It has an English menu which is easy to understand & use. With Megameter & Ohmmeter it enables to test insulation resistance & loop resistance. It has USB Port for uploading test data to computer

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