Ground Resistance Clamps
See Also: Ground Resistance, Ground Resistance Testers
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Single-Phase Transformer Winding Resistance Meters
RMO-TW Series
RMO-TW series is perfect for winding resistance measurements of inductive objects. It is ideal for testing transformer windings (power transformers, distribution, autotransformers) and for on-load tap changer verification. In addition, any RMO-TW transformer ohmmeter & tap changer analyzer can also perform transformer demagnetization.The series contains 4 models, with maximal test currents from 10 A (RMO10TW) to 50 A (RMO50TW). They are fitted in a portable and lightweight metal housing.All transformer ohmmeters from RMO-TW series generate a true DC ripple-free current with automatically regulated measurement and discharging circuit. The injection of current and discharge of energy from the test object are automatically regulated.Three independent channels enable testing of three windings in series. Consequently, this enables measurements of winding resistance in every tap position of an on-load tap changer without discharging between the tests.DV-Win software enables control and observation of the test process, as well as saving and analyzing the results on a PC. It provides a test report, arranged in a selectable form as an Excel spreadsheet, PDF, Word, or ASCII format. Additionally, DV-Win measures and calculates the OLTC transition time, the ripple and the winding resistance for each tap changing operation. The software can also perform the calculations necessary for the “Heat Run” test. Finally, a user can export all results in the form of a report.
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Resistivity and IP Imaging System
ARES
ARES represents a well equipped resistivity and IP imaging system. Groundwater explorations, geotechnical investigations, monitoring of dams and dikes, environmental studies, pollution plumes mapping, geological surveys, mineral prospecting, archaeology, detecting of cavities, underwater, marine, borehole and cross-hole measurements.
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AC/DC Digital Clamp Tester
TCM-45E
MULTI MEASURING INSTRUMENTS Co., Ltd.
*Unique opening / closing mechanism that can measure even in narrow places*AC / DC both 10A / 100A 2 range switching Φ45mm CT inner diameter*RMS value measurement that can accurately measure even distorted waveforms
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Clamp Meters
The APPA clamp meters are a workhorse tool for everyday use. These clamp meters are designed for reliable readings.
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IST(5KV~15KV)High Voltage Micro Ohm Meter,Insulation Resistance Tester Kit
Chongqing Assen Power Equipment Co., Ltd
ISF High Voltage Ohm Meter has a large LCD screen gray backlit display, data storage, data access, alarm, and automatic shutdown functions.
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Resistivity Meter
Model 2180
The unit is compact and lightweight. The basic system is 7″ wide by 2.5″ high and 12″ long. When measurements are needed below approximately 100 micro-ohm-centimeters, the basic system is piggybacked onto a second enclosure that houses a power amplifier with a current gain of ten. The combined unit measures 7″ wide by 5″ high and 12″ long. The combined unit weighs 11.5 pounds. Two short cables interconnect the two enclosures for powering the power amplifier and routing the signals to the fixture or four point probe. The front panel of the basic system includes a 32-character backlit LCD display and a set of function keys. An easy-to-use menu will allow access to user defined parameters such as sample thickness, sample volume, and calibration constants; upper and lower alarm limits, relative measurements, and several others.
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Earth Resistance Tester
2678
Shenzhen Chuangxin Instruments Co., Ltd.
RK2678 series Earth Resistance Tester is used to measure the grounding resistance of the electrical equipments’ internal. It’s suitable for measuring the ground wire resistance of the various motors, electrical appliances, instruments and meters, household appliances and other equipment enclosure etc.
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Decade Resistance Boxes
A range of units to cover the requirements of development laboratories and calibration and test departments. High resistance instruments provide reliable calibration of insulation testers.
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AC/DC Withstanding Voltage& Resistance Tester
TH9201S
Changzhou Tonghui Electronic Co., Ltd.
TH9201S AC/DC withstanding voltage & insulation tester is a kind of Hipot Tester. Due to simple and compact structure, mature technique, brand new structure and operating interface, the operation becomes more convenient, and more practical functions are included as well. TH9201S can be widely applied in transformer, device, component especially for winding safety inspection.
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AC/DC Clamp Meter
CM4372
• AC/DC Clamp • True RMS • 20/600 A range • V, A, Hz, Ω, and other extensive measurement parameters • Inrush current • Max/Min/Avg/Peak • Wireless data download to a tablet or smartphone
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Transformer Winding Resistance Testers / TRT ? 27
TRT-27 series
UDEYRAJ ELECTRICALS PRIVATE LIMITED
Fast measurement: Test current 2.5A to 20A, Digital display of resistance and test current.
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Dynamic Contact Resistance Meter
Dynamic contact resistance measurements are necessary to understand the condition of the arcing contacts of the circuit breaker. Static contact resistance measurements do not give us information related to erosion of arcing contact, misalignments of the contact, and damages to the driving mechanism.
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Hardness & Scratch Resistance
Hardness can be defined as a material’s resistance to permanent deformation. In the coatings industry, hardness measurement can be used to determine the resistance of the coating to scratching from general wear and tear and also if a coating is fully cured.
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Programmable Insulation Resistance Tester
2679
Shenzhen Chuangxin Instruments Co., Ltd.
Programmable insulation resistance tester Feature Resistance test range: 2512: (1µΩ—2MΩ nine shift) Variable speed test:5times/slow,10times/fast. Test accuracy:0.02%±2digits。
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Service Ground Test Set
900
TESCO’s Service Ground Test Set has been designed to check the condition of the ground connection on a secondary service. If for any reason the ground connection has a resistance, this can be immediately detected by the Test Set. The Service Ground Test Set consists of a voltmeter which can be shunted by a resistance of 60 ohms. The voltmeter is of the suppressed zero type with a double range, from 65 to 130 or from 130 to 260, and can be used for checking service voltage independently of the ground test.
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Resistance Measuring Equipment
measure coil winding resistance of motors, transformers, etc, under energizing AC voltage. The direct reading is possible with 4-wire measurement method, and temperature of specimens is immediately calculated from measured resistance values and displayed. Ambient temperature is automatically taken in by connecting an option sensor Model DAC-PT-100.
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Handheld Turns Ratio & Winding Resistance Tester
TWR-H Series
Handheld TWR-H device is DV Power single-phase instrument designed for measuring transformer winding resistance and turns ratio.The instrument has two output DC sources for measuring transformer winding resistance. The first DC source can output up to 2 A DC and is used for injecting current to the transformer’s high voltage winding. The second DC source can output up to 10 A DC and is used for testing the transformer’s low voltage winding. This is especially useful when measuring winding resistance of distribution transformers. These transformers have large turns ratio and therefore a big difference between resistances of high voltage and low voltage windings. Upon the winding resistance test, it is also possible to demagnetize the transformer core. The demagnetization process is completely automatic and safe.Together with the turns ratio, the instrument also measures excitation current and phase shift. This enables detecting transformer core or winding turns failures which cannot be spotted by measuring turns ratio only. The instrument can output test voltage up to 40 V AC for this test, but it can also output a very low test voltage of 1 V AC which is necessary for turns ratio verification of the majority of current transformers.TWR-H is powered by an internal Li-Ion battery. Up to 100 tests can be performed with a fully charged battery.
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Personal Grounding Tester
PGT120
Electronic test apparatus for checking personnel grounding systems such as electrostatic wrist straps and conductive footwear. The unit is equipped with two separate measuring circuits and is therefore capable of checking wrist straps and footwear separately or in parallel. The test result is signaled visually, acoustically (only if error is detected) and via contacts.
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Leakage Current Clamp Mete
Basic functions:AC current:20mA resolution: 0.01mA, ± (2.5%, +5)200mA resolution: 0.1mA, ±(2.5%, +5)2A resolution: 1mA, ±(2.5%, +5)60A resolution: 100mA, ±(3%, +8）AC voltage: 600V, ±(0.8%, +5)DC voltage: 600V, ±(0.8%, +5)Special functions:Auto ranging Low battery display Data hold Auto power-off Over-load protection Input impedanceDC voltage measurement: ≥10MΩ Sampling frequency: 3 times/s Maximum display: 1999 Maximum distance between clamps: 30mm General characteristics:Product colors: iron-gray and redProduct net weight: approximately 136gLCD size: 25x36mmProduct size: 183x63x29mmPower: 2x1.5V, 7#Standard accessories: packing carton and handheld bag English user's manual and battery
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Enclosure, G12x, Front Mount, 4 Cable Clamps, 12" Depth
410112856
Enclosure, G12x, Front Mount, Hinged Cover, 4 Cable Clamps, 12" DepthIncludes hinged cover and 4 cable clamps for discrete wiring. When cable clamps are open- stiffener bar can be removed for installing or removing cables without unplugging patchcords from assembly.Housing: Material = .06" Aluminum, Finish = Powder Coat BlackCover(s)/Access Panel(s): Material = .12" Aluminum, Finish = Black Anodize
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Clamp Meters
Rishabh Instruments Pvt. Ltd.,
Measures, calculates and displays power parameters of single phase or three phase systems. It features bluetooth communication with Android Mobile App. and software for PC for Data Logging, report Generation & Analysis
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Contacts Resistance Tester
JYK II
•Instrument IPC architecture for domestic production of all models of metal contacts SF6 switchgear, GIS combination of electrical, vacuum switch, oil switch and column switches, contacts and so on.•Sensor: Acceleration speed sensor, rotation speed sensor, linear stroke sensorinstallation is very easy and simple.•Trigger: The trigger, external trigger, the sensor is triggered. Sensor can trigger the circuit breaker manually switching characteristic test, such as a manual column pole division switch.
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Power Grounding Strap Kit
GS-08
The power grounding strap kit ensures safety standards are maintained.
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Leakage Clamp Meters
3921 CL
Standard Electric Works Co., Ltd
● Designed for testing AC current and AC voltage. ● 5 ranges for AC current testing.● The best resolution of leakage current measurement is 0.1mA.● Frequency selection : 50/60 Hz and Wide.● Data hold function.● Maximum reading.● Low battery indication.
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Self-Powered Inductive Clamp Timing Light
130
The original battery powered timing light, built with quality to last. There is no need to connect to a 12 volt battery for power. This unit is powered by two “D” cell flashlight batteries. Great tool for marine, smowmobile, industrial, racing engines and other small engine timing. Don’t accept a copy.
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Resistance System Kit
PMK-151
The PMK-151 Basic Measurement Kit has all the functionality of the PMK-152, but adds computer downloading capabilities. It contains all the instruments you need to take a variety of resistance measurements.The PMK-151 includes Prostat's PRS-801 Resistance Set with modified 5 pound conductive rubber electrodes, the PRS-801 wide range resistance meter, and Prostat PRS-801 Connectivity software for computer data downloading. You can take measurements at 10 and 100 volts with accuracy within ±5%.
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Analog Clamp Tester (CE)
M-3000
MULTI MEASURING INSTRUMENTS Co., Ltd.
*High accuracy analog display with strong taut band meter.*Meter lock function.*AC current, AC/DC voltage and resistance measurements.*Conform to IEC safety requirements.
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High Altitude Wiring Clamp
Weshine Electric Manufacturing Co., Ltd
1. The operation is simple, through pushing and pulling the special operation lever can realize the clamp mouth free opening and closing, complete the wiring work.2. Connection clamp between the upper and lower jaws of the use of the principle of moving pulley to save the effort, the use of smaller tension can be obtained larger clamping force.3. There is a steel needle inside the clamp mouth to ensure good contact between the clamp mouth and wiring position
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True RMS Current Clamps
PeakTech Prüf- und Messtechnik GmbH
Current clamps are ideal for current measurement in electrical systems and control cabinets, since only single wires are guided through the clamp jaws for contact-free current measurement and no electrical connections have to be disconnected. In addition, this model has extensive multimeter functions for voltage, resistance, frequency, capacitance and temperature measurement.
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Handheld Digital Multimeter, AC/DC Current, AC/DC Voltage, Capacitance, Resistance, True RMS
72-2995
40,000 count industrial True RMS digital multimeter is a highly versatile handheld instrument boasts 5-1/2 digit TRMS accuracy. It provides AC/DC voltage and current measurement, resistance, capacitance, temperature and frequency measurement, displaying readings on a backlit LCD digit and analogue bargraph display. Other features include non-contact voltage detection, continuity and diode test and USB data logging. All this is housed in a rugged overmolded enclosure with carry case, test leads and USB interface cable included.
