Insulation Resistance Testers
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Product
Earth Resistance Testers
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Precision Mastech Enterprises Co.
Specialized instruments used to measure the effectiveness of grounding systems in electrical installations.
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Product
12U (21") Insulated Bus Bar
BB-21-I
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12U (21") insulated bus bar provides cabinets with recessed rail option and a convenient, isolated common grounding mechanism.
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Product
Skid (Portable Skid Resistance Tester)
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(also known as the British Pendulum Tester) is an essential tool for anyone with a duty to minimize the risk of accidents arising as a result of slippery roads and floor surfaces. This device is also used to investigate the cause of accidents after they have taken place.
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Product
Earth Resistance Clamp Meters
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Precision Mastech Enterprises Co.
Specialized, non-intrusive electrical testing tools designed to measure grounding system resistance without disconnecting the ground rod or using auxiliary electrodes.
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Product
Transformer Winding Resistance Meters
RMO TW Series
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The RMO-TW instrument can perform a simple, fast and reliable verification of a transformer on-load tap changer. This instrument allows measurements of a winding resistance at each tapping position of an on-load tap changer without discharging between tests. Problems with OLTC switching, such as interruption, can be detected with these measurements. The results are displayed on a backlit LCD screen.
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Product
Multimeter w/ Insulation Measurement
HT701
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Professional TRMS multimeter with 10.000 measuring spots and measurement of insulation resistance with selectable test voltage between 50, 100, 250, 500, 1000VDC.
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Product
Transformer Winding Resistance Meters
RMO TT Series
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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.
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Product
Surface Resistance System Kit
PRS-801RM
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- Perform Point-to-Point and Resistance to Ground Measurements from 0.01 Ω to 200 Teraohms- Accuracy of ±2% from 1.00 Ω to 9.99x1010Ω- Measures in accordance with ESD TR53, ANSI/ESD S4.1, ANSI/ESD S7.1, ANSI/ESD STM97.1 and others- Constant Test voltages 10V and 100V meeting ANSI/ESD S20.20- Operates using a Rechargeable Li-ion Battery Pack- Takes Approximately 8,000 Measurements on a Single Charge (480 hours typical)- Stores up to 999 Test Values Into Memory- Compatible with Prostat Connect 2.0 for Downloading into Excel®- Charging and Download via Standard Micro USB Cable- Includes 5lb Conductive Probes and Carrying Case- Certificate of Calibration Traceable to NIST included- 2-year Limited Warranty on Main Instrument
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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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Product
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
Contact Resistance Meter
CRM 100C
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CRM 100C directly measures resistance values with DC current injection under live switchyard conditions.The CRM 100C is specially designed to reliably measure contact resistance of Circuit Breakers, Isolators, Bus Bar joints, welded joints etc., under the hostile electrostatic noise found in live EHV switchyards. It can also be used for testing cables, graphite bars etc.
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Product
Earth Resistance & Resistivity Meter
MRU-21
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* earth resistance measurment with 3-pole method, * measurement of continuity of equipotential bondings and protective conductors with auto-zero function - with current 200mA, * resistance measurement using 2-pole method.
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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
Resistance Meter
RR2204CZZ
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Aarohi Embedded Systems Pvt. Ltd
AAROHI resistance meters measure a vide range of resistance values at a high level of accuracy. RR2204CZZ is a high-precision, portable resistance meter capable of measuring resistance with extremely high accuracy with low ambient temp. effect. This is ideal for the testing and maintenance of Electric motors, Pump sets & other equipment with windings. This Instrument is based on Kelvin 4- wire connection method for measurement of low resistance.
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Product
Resistivity Meter
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Resistivity meterRSM-500 is used for measuring the volume resistivity of transformer oil and other electrical insulating liquids. • Auto ranged from 109 to 1015 ohm cm • Test voltages: internally generated +500V DC
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Product
Advanced Powder Resistance Kit
PRK-130
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The PRK-130 is an advanced kit that includes the PRF-930 Powder Resistance Fixture for measuring the bulk resistance of powder and granulated materials. Test material is placed in the cavity between the measurement plates. Once a measurement has been made in ohms, a fixture calculation, or correction factor, converts the resistance measurement to volume resistivity in ohm-cm.
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Product
44U (77") Insulated Bus Bar
BB-77-I
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44U (77") insulated bus bar provides cabinets with recessed rail option and a convenient, isolated common grounding mechanism.
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Product
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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Product
Handheld Contact Resistance Tester
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Weshine Electric Manufacturing Co., Ltd
The hand-held Circuit resistance tester is an innovative product. The product is compact, hand-held operation, battery power supply, easy to carry. The product is mainly used in the measurement of contact resistance and other micro-Euclidean resistance of switch contacts. The test speed is fast and the accuracy is high.
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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
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
Contact Resistance Measurement System
CRMS
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The CRMS is a system designed to allow any user to measure the resistance of each set of relay contacts associated with the relay under test. The test system consists of a CONTACT RESISTANCE MEASUREMENT UNIT (CRMU), a MULTIPLE RELAY TEST RACK, as well as an interconnect CABLE ASSEMBLY. Either DC or AC energy to pick and drop relay coils under test for all contact measurements is supplied from the CRMU and easily interfaces with the Multiple Relay Test Rack. For additional and more thorough testing of relays an external relay tester can be interfaced to the Multiple Relay Test Rack to supply energy to the relay coil. It is recommended that the UTE Relay Tester With Timer/Counter (UTE Product # 15967-00) be utilized so the operator can take full advantage of the unique features it offers
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Product
Decade Resistance Box
TEK903
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The TEK903 is a very reliable decade resistance box with high quality rotary switches providing in-line readouts. Ideal for laboratory, educational and calibration applications. The extra terminal forms an accurate potential divider.
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Product
Ground Resistivity and EarthService Tester
AD-510
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Large, readable LCD display (2000 counts), Instant battery life indicator, Test frequency: 128 Hz (quartz generator), Test Voltage: max 30 V peak-to-peak, Range: 0,01 W ? 2 k W. Accuracy resistance measurement: 1 % 2 digits,
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Product
AC Load Bank (Resistive)
K-1000 Resisitive
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Kongter Test & Measurement Co., Limited
The kW of a resistive load bank is “real” power in electrical terms. When a resistive AC load bank is used to test an engine generator set the engine will produce its full horsepower rating, dissipate engine exhaust gases, and produce thermal energy into the engine cooling system. The resistive load bank in fact, will completely test the engine and its various systems.
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Product
Small Full Safety Insulated Crocodile Clip
126017/Colour
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IEC 1010 Rating: 300 Volts CAT II Double/Reinforced Insulation 10AmpsStandard Colours: Black, Red, Green, Blue, Yellow, WhiteFeatures: Will accept all standard 4mm plugs.
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Product
Digital Earth Resistance Testers
ST-1520
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Capable of measuring earth voltage.2mA measuring current permits the testing of earth resistance without tripping earth leakage current circuit breakers in the circuit.Auto power off function.The timer operates automatically for approximately three to five minutes when the "push button switch" and "timer on button" are pressed together.
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Product
Portable Winding Resistance Tester
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1. Handheld winding resistance meter2. Conversion function for standard temperature resistance.3. 500 test data can be saved and download by flash disk.4. Temperature testing function.
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Product
Insulation Testers
AD-902
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The instrument is designed for the direct measurement of insulation resistance of cables and electrical equipment especially in the telecommunications and communications. It can also serve as a tester for example go. Circuits or connectors.
