Sheet Resistance
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Resistance Measurement Meters
Shanghai Beha Electronics Co., Ltd.
The meter digital milli-ohmmeter is a battery operated instrument wich supply a low current to the circuit under test, with which, stable, accurate measurement of low resistance can be made, still, over a wide range of values.
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Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
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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Insulation Resistance Tester
WB2681A
• Insulation test voltages: DC250V、DC500V、DC1000V • Range of open-circuit voltage: ±10% rated voltage • Testing time: 3~99 seconds or controlled manually
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Resistance Wire Bonding
Electronic Systems of Wisconsin, Inc.
ESW's Resistance Wire Bonding System comes equipped with the latest features the market has to offer. Our system is capable of bonding armatures, stators or coils. The on-screen display in our bonder makes it easy to read, track, and record your bonding data. If desired, ESW offers complete electrical testing of the part prior to the bonding sequence as well. This ensures only good parts that have been electrically tested are processed through bonding. It is our duty to make sure you never have to worry about losing important information again. Our Sales and Engineering staff will work closely with you to make sure that a bonding systems will meet your needs. See the slideshow below to see some of our Resistance Wire Bonding Testers.
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Earthing Resistance Tester
JYD-10A
transformer neutral grounding resistor is the vital need in medium voltage AC distribution network that are also called by different names like Neutral Earthling Resistors. They are taken into use to limit the current that would flow through the neutral point of a transformer or generator in the event of an earth fault. They are also used for resistance grounding of connected generators and transformers.
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PCB Track Resistance Calculator
TRC100
The TRC100 is a handy free utility which lets you enter track shape and length, along with material type, the TRC100 will give you an answer in Ohms for the trace you describe. TRC100 is useful if you are working on fine geometries, and need to take care about series loss. You may also find TRC100 useful in power supply applications.
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Pocket Size Digital Multimeter, Resistance Measure, 3999 Count, Average, Auto Range, 3.75 Digit
72-10395
Pocket sized multimeter which comes in a self-contained folding case. The meter measures AC/DC voltage, resistance, capacitance & frequency.
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Field thermal needle system for thermal resistivity / conductivity measurement
FTN01
Hukseflux Thermal Sensors B.V.
The FTN01 Field Thermal Needle System allows performing fast, on-site measurements of the thermal resistivity or conductivity of soils, in particular around the typical depth of burial of high voltage cables. FTN01 is designed with a focus on robustness and saving time, while still offering sufficient accuracy for typical field measurements. The sensor is a Non-Steady-State Probe (NSSP), TP09, which is mounted at the tip of the Lance LN01. The system is operated using a hand-held Control and Readout Unit CRU01.
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Insulation Resistance Tester
HT2671 / 761
Wuhan Huatian Electric Power Automation Co., Ltd.
Mainly used to check the insulation resistance of electrical equipment or electrical lines to ground and phase to ensure the normal operation of these equipment.
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Leakage Current Tester and Clamp-On Earth / Ground Resistance Tester
10µA Ultra High ResolutionLarge Conductor Diameter (30mm)AC Current in 5 Ranges (40mA, 400mA, 4A, 40A, 60A)Wide Frequency Response (40Hz-1KHz)ACA, ACV, Ω and ContinuityLarge 3¾ Digit LCD (4000 Count)40 Segment Fast Bargraph Display (20 times/sec.)Data Hold and Max / Min HoldRelative Measurement600 Vrms Overload Protection in Resistance Range
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Resister Blackjack
Resistor blackjack is like regular blackjack but better! Your goal is to assemble a single resistance from several resistors that is as close to 21k while not being over.Unlike regular blackjack, the resistors can be combined in series and in parallel, giving the game a whole new dimension. Plus, resistors have tolerances so achieving a mathematical 21k doesn't guarantee a win.
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Highly Inductive Resistance Meter
MR 8050
With the MR 8050 resistances highly inductive Resistance Meters windings of transformers, motors and reactors can be measured. (range 100 µΩ with 0.01µΩ resolution up to 6 kΩ). The performance of the test objects can be up to 800 MVA or even more. The magnetic loading of a transformer is performed quickly using a high loading voltage (60V). This is important for time critical measurements (cooling curves). The unloading of the transformers core is very fast, very safe, as the energy is total destroyed in the MR 8050.
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RF Training Kit And Lab Sheets
Y1800A
The RF transceiver kit consists of a transmitter unit and a receiver unit in superheterodyne architecture. The transceiver units are made up of various RF building-block modules such as filter, low noise amplifier, power amplifier, mixer and oscillator. The RF transceiver kit is controlled by a Windows-based Control Panel software via USB. A Measurement Automation Program is provided to demonstrate automated characterization and test of RF circuits. A signal generator and a spectrum analyzer are required to run this program.
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Ground Resistance Inspection Box
AllWin Instrument Science and Technology Co., Ltd.
Check the ground resistance tester each time prior to start work everyday morning and do some relevant records.
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Electronic Resistance Store
MEMS2-4L
The mezzanine serves as an electronic store of resistance to direct current, the value of which is set by software, through two isolated channels.
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Ground/Insulation Resistance Test Series
Wuhan Huatian Electric Power Automation Co., Ltd.
Ground/Insulation Resistance Test Series by HVTEST
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Resistivity Standard
Resistivity Standards are bare silicon wafers available in 3 in, 8 in and 12 in sizes. The silicon is p-type (Boron) doped to nominal resistivity values, from 0.002 ohm.cm to 75 ohm.cm as available on the 3" model.
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Digital Earth Resistance Tester
8020 ER
Standard Electric Works Co., Ltd
● Capable of measuring earth resistance and earth voltage. ● 2mA measuring current permits the testing of earth resistance without tripping earth leakage current breakers in the circuit under test.● Frequency : 820Hz.● 0Ω adjustment.● Battery operated.● Data hold function.● Low battery indication.● Calibration performed with supplied test leads.● Simplified measurement probe is also provided for two-wire measuring method.
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Loop Resistance Measuring Device According to DIN EN 61557-3 (VDE 0413-3)
PeakTech Prüf- und Messtechnik GmbH
A loop tester which is used to test the safety of electrical systems. These device measures the impedance of the short-circuit loop between the outer conductors of a circuit, whereby the probable short-circuit current is calculated. The protection of the circuit (miniature circuit breaker) must therefore trigger at a lower current than the expected short-circuit current, in order to avoid excessive heating of the lines and thus a fire risk. The PeakTech 2715 is due to its function and its robust design almost indispensable when performing new installations, but also for general checking of electrical systems, this device is the ideal companion.
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Earth Resistance Clamp Meter
T2100
Clamp meters for measuring earth resistance directly on earth rods (STAKELESS METHOD) and compatible with MacrotestG series meters
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Low Resistance Meter
MMR-640
The MMR-640 meter is designed to measure very low resistance of resistive objects. This product is made to be used in power plants, railways and maintenance companies to measure resistance of:*breakers, contacts,*earthing conductors, equipotential bondings,*welded and soldered connections,*bolted connections,*and other resistive objects.
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Inline OEM High Resolution Thickness & Resistivity Module for PV / Solar Sorters
MX 152
To allow three thickness scans during belt transport at different wafer sizes, two measuring bars, one from top and one from bottom, hold 3 sensors each.
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Earth Resistance Tester
G-TEST
To check the condition of a grounding connection, an earthresistance tester is used to measure the residual ground voltage,resistance and resistivity (Wenner method).
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Winding Resistance Meter
TRM 25
SCOPE introduces 25 A state of the art precision winding resistance meter, specially designed for field testing as well as factory testing of large transformers up to 500 MVA. Winding resistance value of transformer and rotating machine are directly displayed on 5.7” TFT display. TRM 25 is designed to work in live EHV switchyard conditions, ensuring operator’s safety and repeatability of results. Maintenance time saving is ensured by one time connection to transformer with simultaneous resistance measurement of three / six windings, measurement of resistances of all taps with automated tap change and demagnetization facility. The meter is protected against the back-EMF offered by large inductive windings.
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Winding Resistance Meter 100Amps, 3 Channels
WR100-13R
Raytech Digital Winding Resistance meter WR100-13R is the enhanced version winding resistance system with a most advanced demagnetizing circuit as a rack version. It is designed for high degree of accuracy for the measurement of very low resistance of any inductive loads.
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Resistive & Capacitive, Inductive AC Load Bank
RLC
Inductive & capacitive load banks are reactive only and must be used in combination with a resistive load bank to provide the desired load profile to test a power system. Reactive loads banks can provide either a leading power factor (Capacitive) or lagging power factor (Inductive).
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Winding Resistance Meter 50Amps, 3 Channels
WR50-13
Raytech Digital Winding Resistance meter WR50-13 is the enhanced version winding resistance system with a most advanced demagnetizing circuit. It is designed for high degree of accuracy for the measurement of very low resistance of any inductive loads.
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Insulation Resistance Measurement
MD 5KVr
The digital insulation tester model MD5KVR is TENTECH's cutting edge insulation analyzer equipment and it is one of the most complete and sophisticated available in the international market. A software allows for further analysis of tests results, including features such as graphical representation and automatic report generation. Its proven technology provides safe, reliable and accurate measurements of insulation resistances up to 5 TΩ, with 4 preselected test voltages, 500 V -1 kV - 2,5 kV - 5 kV. Other test voltages, from 50 V to 5 kV, can be selected in 25 V or 500 V steps.
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Electrical Resistance (ER) Monitoring
The electrical resistance (ER) technique is an "on-line" method of monitoring the rate of corrosion and the extent of total metal loss for any metallic equipment or structure. The ER technique measures the effects of both the electrochemical and the mechanical components of corrosion such as erosion or cavitation. It is the only on-line, instrumented technique applicable to virtually all types of corrosive environments.
