Ground Resistance Testers
See Also: Ground Resistance, Earth Resistance Testers, Ground Resistance Clamps
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Product
Handheld Turns Ratio & Winding Resistance Tester
TWR-H Series
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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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Product
Resistance Grounded Systems (HRG/LRG)
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Neutral Grounding Resistors (NGRs) are used to limit the maximum ground-fault current. Restriction of fault current lowers hazards and reduces damage done to equipment. High Resistance Grounding (HRG) systems are often used on industrial and critical power applications to maintain system uptime during a first ground fault. HRG systems are also used in tripping applications to help control touch potential on portable loads and improve personnel safety.
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Product
Protector Conductor Test / Ground Continuity Test / Ground Bond Test
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Testing the protective conductor is indispensable for assemblies, devices and systems of protection class I because it reduces the risk of life-threatening electrical accidents.The test checks whether the protective earth (PE) fulfils the criteria specified in the standards and can correctly discharge the current occurring in case of a fault.The ground continuity test checks whether the protective earth conductor is connected continuously to all metallic enclosure parts that can be touched by the user. The test can be carried out with low currents and voltages (simple continuity test).
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Product
Resistance Meter
RM3542A
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High-speed resistance meter ideal for automated lines; compatible with super-small electronic components • Testing source: DC • Fastest measurement time: 0.9 ms • Minimum integration time: 0.1 ms • Finest resolution: 0.1 μΩ
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Product
Battery Internal Resistance Tester
TOB-R-203
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Xiamen Tob New Energy Technology Co., Ltd
Battery internal resistance tester used for lithium battery, lead-acid battery, Ni-Cd/Ni-MH battery and all kinds of batteries.
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Product
Winding Resistance Tester
JYR-50C/40C/20C
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1. With demagnetization function.2. Testing range reach to 20k3. Also apply to testing tranformer with high winding resistance.
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Product
Contact Resistance Meter
CRM 200B
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CRM 200B directly measures micro-ohm values at 100 Amps DC under live switchyard conditions.CRM 200B is specially designed to reliably measure contact resistance of circuit breakers, isolators, busbar joints, welded joints etc., under the hostile electrostatic noise found in live EHV switchyards upto 765 kV.
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Product
Electrical Resistivity Instrumentation
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The resistivity survey method is more than 100 years old and is one of the most commonly used geophysical exploration methods (Reynolds, 1997). It has been used to image targets from the millimeter scale to structures with dimensions of kilometers (Linderholm et al., 2008; Storz et al., 2000).
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Product
Resistance Meter
MT16-4L
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М-module МТ16-4Л is a mezzanine module (hereinafter referred to as a mezzanine), designed to measure the resistance of resistive sensors using a four-wire measurement circuit in sixteen channels (sixteen-channel digitizer). М-module МТ16-4Л is installed on the mezzanine carrier - module НМ-М and is connected to it via a local information highway. Up to four mezzanines of various types can be installed on the NM-M module. The NM-M module, together with the mezzanines installed on it, forms a VXI module of the C-1 size and is used to create information measuring VXI systems.
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Product
Ground Weather Analytics
HELIOS
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L3Harris Geospatial Solutions, Inc
Microclimates are on the rise, and as a result, there are extreme deviations of wind, snow, fog and visibility even over short distances. Organizations of all sizes need hyperlocal ground information and weather data to enhance operational efficiencies and make better decisions that can save time, money, property and even lives.
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Product
Insulation Resistance Tester For PV
MSEI-200C
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MULTI MEASURING INSTRUMENTS Co., Ltd.
This model can measure insulation resistance of DC current circuit in PV systems (between PV module and power conditioner) on the live line and can distinguish the deteriorated part between Power Phase, Neutral Phase, P/N Phase and or PV modules.
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Product
Earthing Resistance Tester
JYD-10A
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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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Product
Resistance Measurement
PROMET
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High-precision micro-ohm measuring systems with adjustable DC test current for determining resistances on circuit breakers or inductive loads such as transformers, for example. The high-precision ohm meters of the PROMET series are used to determine very low electrical resistances in the µΩ range. The adjustable test current of up to 600 A in combination with a four-wire measuring method delivers measurement results which meet stringent accuracy requirements. State-of-the-art power electronics coupled with a robust design guarantee excellent reliability for use as a portable device in switching stations and industrial environments. Typical applications include determining the contact resistance of switchgear devices and determining the resistance on inductive loads such as transformers.
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Product
Cable Electric Resistance Tester
MR 270 C-A
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The MR270C-A is specially designed for electric resistance measurements in cable industry applications and inductive loads (transformers, motors). It is perfectly fit both for measuring the meter resistance in connection with a corresponding resistance measurement holding device or for final acceptance control of power cable reels. In the case of cable reels, which often have a cable length of several kilometers, both the compensation of the inductive component and the ability to perform measurements in the presence of high noise levels are important. This also applies to the winding resistance of transformers and motors.
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Product
Ground Fault Detectors
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STB Electrical Test Equipment, Inc
STB's convenient Ground Fault Detectors may be operated with one hand and are ideal for preventative maintenance. Ground Fault Detectors indicate ground faults and electrical leakage while equipment is in operation.
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Product
Heavy-Duty Circuit Tester With Grounding Adapters
30610
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Heavy-duty circuit tester with multiple options for connecting to a ground source. Long, 12’ cord has a quick coupler to securely connect clamp or power outlet plug. Large, strong clamp connects securely. Power outlet plug can always be used to provide ground in the cabin. For testing circuits up to 12 volts.
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Product
Zero Resistance Ammeters
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Current sinks are electronic circuits which can sink electric power in a controlled manner, thus acting as controlled loads. Our current sinks are designed as four - quadrant current sinks which can feed and sink currents in both polarities (also disregarding the polarity of the resulting voltage).
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Product
4-Wire Resistance Measurement | Continuity & HiPot Cable & Wire Harness Testers
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An add-on option for the CableEye HVX high voltage cable tester series that permits expanded testing for contact and wire resistance as low as 1 mΩ. After checking for opens, shorts, miswires, and resistance limits, the 4-wire Kelvin measurement applies a user-selectable test current from 10 mA to 1 A to determine connection resistance within 1 mΩ. The resistance profile of a model cable may be stored and used as a basis of comparison during later testing to reveal cold solder joints, faulty crimps, recessed pins, pin contact contamination, improper wire gauge, and stress-extruded wire.This option may be purchased with any new HVX tester, or added as an upgrade to any of your existing HVX testers.
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Product
Din Abrasion Resistance Tester
SG-P01D
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This tester is used to determine the abrasion characters of elastomers, rubber, soft synthetics, leather. etc or is with characters of high efficiency, good reproducibility and easy operation.
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AC Ground Bond Testers
440 Series
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The 440 Series provides advanced 4-in-1 test capability in a convenient one-box solution. This new series performs AC Hipot (448 - 500 VA), DC Hipot, Insulation Resistance and 40A AC Ground Bond tests while taking up minimal production line space. The 440 Series is simple and easy-to-use; reducing setup time and increasing production line throughput for your application. With multiple memories and an optional USB port for remote BUS communication so you can quickly perform tests on a variety of DUTs from the front panel or with a PC. Learn about our 5 Year Warranty.
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Product
Electronic Resistance Store
MEMS2-4L
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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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Internal Resistance Testers
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The Battery Internal Resistance Tester is essential for assessing the health and performance of stationary reserve power batteries. Designed for efficiency, this tester measures internal resistance, helping to identify potential issues before they impact battery performance. By providing accurate diagnostics, it enables proactive maintenance, ensuring reliability in critical applications. This advanced testing equipment is an invaluable tool for enhancing battery longevity and optimizing energy storage systems.
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Product
Shoe Dielectric Resistance Tester
UI-FT07
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Shoe Dielectric Resistance Tester, also named as shoe high voltage withstand tester, is used to test shoe sole and heel electrical insulation, to check shoe performance of voltage withstand and current leakage. It is to test safety shoe dielectric resistance ability (Electrical Hazard Testing) as mentioned in ASTM F2412.
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Insulation Resistance Meter
AMIC-10k1
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Insulation resistance measurement - 40TΩ: * 50 - 1000 V, in 25 V steps, * 1000 - 10000 V, in 50 V steps ; Memory, bluetooth keyboard option, heating location ; Measurement of AC and DC voltage and capacity ; Measurement of leakage current and function with digital filter ; Measurement of continuity of protection and equipotential connections ; Adjustable alarm limits.
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Product
Earth Resistance
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Precision Mastech Enterprises Co.
Specialized instruments designed to measure the effectiveness of earthing systems, ensuring electrical fault currents safely dissipate into the ground to protect people and equipment.
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Product
Resister
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Our ARFC type Film Flat Chip Resistor & ARFCN type Thin Film Chip Resistor Network are high precision Metal Film resistors produced with high purity. Alumina Substrate and Ni-Cr-Si Resistor Film based on high precision Etching Technology. The electrode Terminals are made with Spattering Film and Nickel-Solder Plating, and solderability is very good in all Flow, Reflow and Dipping type soldering for Hybrid IC, SMT, PCB etc. Our ARFC Metal Film Resistor & ARFCN type Thin Film Chip Resistor are being produced under the thorough quality control, and are being used widely in high precision and high reliability electronics circuit such as Measuring Instrument, Medical Instruments, Communication and other Industrial Instruments.
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