Ground Resistance
Evaluation of the conductance of earth grounding.
See Also: Ground Resistance Clamps, Ground Resistance Testers, Surface Resistivity
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Air Core Neutral Grounding Reactors
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Neutral Earthing (Grounding) Reactors, which resist current flow through inductive elements, are single phase reactors generally connected between ground and neutral of transformers or generators in order to control single line-to-ground faults at a desired level.
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Product
High Resistance Neutral Grounding Devices
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HRG systems limit the fault current by placing high resistance between neutral point of transformer (or generator) and ground. As it is not possible to locate the fault point in delta connected systems, an artificial neutral point is created and delta connected system can be grounded. This allows a fault current of a few amperes thus locating the fault point gets easy. When the neutral point is grounded thru high resistance, both continuity of operation is provided during fault condition and sufficient current (typically between 2 A and 10 A) flow is provided for ease of locating the fault point.
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Product
Surface Resistance Meter Kit - Test Anti-Static, Static Dissipative and Conductive Surfaces
PRS-812RM
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- Surface Resistance Tester from 0.10 Ω to 1 Teraohm- Constant Voltages 10 volts and 100 volts- Automatic Electrification Period- Determines if a surface is Dissipative, Conductive, or Insulative- Measures resistance point-to-point(Rtt) and resistance to ground (Rtg)- Measures resistance of ESD Flooring, ESD Worksurfaces and Packaging- Conforms to all ESD Association Standards for Resistive Characterization- Includes 2 each Surface Resistance Probes- Packaged in a hard shell Carrying Case- Certificate of Calibration Traceable to NIST included- 2-year Limited Warranty on Main Instrument
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Product
Resistivity Cell For N1413 (50 Mm Electrodes)
N1424A
Resistivity Cell
The N1424A is designed to operate specifically with the B2985B/87B Electrometer/High Resistance Meter. It is used to measure surface or volume resistance/resistivity of insulation materials. The N1413A High Resistance Meter Fixture Adapter is required to connect the N1424A to the B2985B/87B.
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Product
High Resistance Measurement Universal Adapter
N1414A
High Resistance Measurement Adapter
N1414A High Resistance Measurement Universal Adapter is used to simplify the connection for high resistance measurements by B2980A series electrometer.
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Product
Resistivity Cell For N1413 (26/50 Mm Electrodes)
N1424B
Resistivity Cell
The N1424B is designed to operate specifically with the B2985B/87B Electrometer/High Resistance Meter. It is used to measure surface or volume resistance/resistivity of insulation materials. The N1413A High Resistance Meter Fixture Adapter is required to connect the N1424B to the B2985B/87B.
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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
Earth Resistance & Resistivity Meter
MRU-200
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MRU-200 is the only meter in the market which uses all measurement methods.Possible measurements:- earth resistance measurment with 2-pole, 3-pole,4-pole method,- impulse earth resistance measurement, two kinds of measuring impulse 4/10s, 10/350s,- earth resistance measurement without disconnecting measured earths (using clamp),
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Turnkey Ground Systems
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Kratos Defense & Security Solutions, Inc.
Kratos has a long history of turnkey ground system builds that spans more than 300 missions over 30 years. Our on-time and on-budget deliveries are supported by our worldwide team throughout the entire project life-cycle with just one point of contact.
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Product
Resistance & Resistivity Probes
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Surface and/or volume resistance measurements are key parameters in describing materials' electrical properties. ETS offers a variety of probes to support numerous industry requirements and applications.
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Ground Bond Tester
HYAMP® Series
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HYAMP III includes productivity-enhancing features and proven safety technology to reduce the compliance bottleneck on the production line. All models verify the integrity of your product's ground circuity with accurate 4-wire measurements and offset capability.
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Product
4 Wire Earth Resistance & Resistivity Tester
4236 ER
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Standard Electric Works Co., Ltd
● Microprocessor-controlled.● Earth resistivity (ρ) test.● Earth testing at 20Ω, 200Ω, 2kΩ.● Earth voltage measuring : 0-300V AC.● Automatic C spike check.● Automatic P spike check.● 2-Wire test, 3-Wire test, 4-Wire test.● LCM display.● Auto ranging.● Auto power OFF.● Data hold.● 200 measurement results can be saved in the memory and recalled on the display.● Interval between auxiliary earth spikes is 1.0~50.0m.● Optical USB to RS-232 data transmission.● The stored data can be transferred to a PC.● 2 optical LEDs are built-in for data transfer.
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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
Resistance Meters
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ACL provides surface resistance/resistivity meters and digital megohmmeters to quickly and accurately measure resistivity.
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Product
AC Ground Bond Tester
448
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Our 448 model is a 4-in-1 tester with 500VA AC Hipot, DC Hipot, Insulation Resistance and Ground Bond testing capabilities. The 448 is capable of a 500VA AC Hipot output to comply with 100mA leakage current test compliance requirements. This tester features a simple design and easy-to-use interface, reducing setup time and increasing production-line throughput for your application.
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Product
Resistance Meter
MS8-2L
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M-module MC8-2L is a mezzanine module designed to measure resistance using a two-wire measurement scheme in eight channels (eight-channel digitizer). М-module МС8-2Л is installed on the mezzanine carrier - NM module and is connected to it via a local information highway. Up to four m-modules of various types can be installed on the HM module. The NM module, together with the m-modules installed on it, forms a VXI module of size C-1 and is used to create information measuring VXI systems.
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Low Resistance Ohmmeters
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Some times know as Ducter testers, these are highly accurate, easy to operate instruments that measure resistance with resolution as fine as 0.1 micro-ohm. Digital micro-ohmeters and DLROs measure contact resistance of switch and circuit breakers, aircraft frame bonds, and rail and pipeline bonds just to name a few of the applications. Megger has models available for testing using test currents from 0.5 mA to 200 amps covering a multitude of applications that require precise low-resistance measurements.
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Winding Resistance Meter
TRM 104
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TRM104 is a portable winding resistance meter, designed to work in live EHV switchyards. Winding resistance values of large transformers up to 500 MVA and rotating machines are directly displayed. The meter is protected against the back emf offered by large inductive winding. A back-lit 4 line LCD with a user-friendly menu sets up the instrument for the test. Winding resistances and safety messages are also shown on this display. It is possible to measure the resistance of two windings simultaneously.The meter contains a special power source for rapid stabilization of test results.
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Resistance Measurement Meters
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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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Product
Surface Resistance Meter
990SRM
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The Model 990SRM is a convenient, pocket-sized meter for measurement of surface resistivity and resistance to ground.
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Product
Generator Neutral Grounding & Leads Cubicles
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Generator Neutral Grounding Cubicles are designed to minimize fault damage incurred by generators, maintain sufficient fault detection and improve power system reliability. Generator Neutral Grounding and Lead Cubicles are manufactured as for IEEE or IEC standards.
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Electrical Ground Support Equipment:
EGSE
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Keysight provides a variety of configurable test systems for satellites and satellite flight hardware; including Solar Array Simulators, Battery Simulation and Conditioning, RF signal simulation and analysis as well as fully custom solutions.
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Ground Fault Locator
DC Trace
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SCOPE introduces DC Trace, the most advanced and user friendly DC Earth (Ground) Fault Locator. This portable instrument consisting of Signal Generator & Signal Receiver (DC TraceR) uses latest digital signal processing technology. It’s ability to detect earth faults in live DC system quickly & accurately in online condition greatly relieves the substation maintenance engineers from nightmare of earth leakages & it’s detection.
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Ground EMI Filters
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High-frequency signals on ground is never good news - it interferes with normal operation of equipment and creates electrical overstress (EOS). However it is easy to block propagation of EMI on ground by installing highly-effective ground EMI filtes in ground lines. Our unique patent-pending ground EMI filters provide very low impedance for DC and mains' power while effectively blocking propagation of high-frequency currents throughout facility or equipment ground. Ground filters meet safety standards, as well as ANSI/ESD S6.1 and ANSI/ESD S20.20.
