Insulation Resistance
Applies a voltage across a dielectric and measures resistance.
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Product
High Frequency Insulation Tester
HFIT 8.0
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The MEDTEQ HFIT 8.0 is intended for high frequency insulation testing against IEC 60601-2-2. This version includes in-built metering and automatic functions to make testing easy not only for design and laboratory testing, but also suitable for regular production testing.
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Product
Earth resistance meters
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The PROMAX earth meters guarantee the proper operation of industrial and home electrical circuits.
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Product
Contact Resistance Tester
JYL
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As a high current passes through a pair of mechanically independent metallic contacts, the contact resistance must be as low as possible. Increasing the contact resistance of the contact often causes a large voltage drop on the contact, which reduces the input power of the load equipment. If the contact resistance of one or two contacts becomes large, the three-phase voltage of the load equipment will be unbalanced, causing phase loss operation.
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Product
Dynamic Contact Resistance Meter
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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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Product
HIPOT Insulation Testers
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Crown high voltage, transformer type hipot insulation testers are safe, easy to use for quick, positive determination of grounds, shorts, and broken wires in motors, transformers and other low voltage equipment or wiring systems. A turn of the selector switch gives a selection of seven voltages;500, 1080, 1250, 1500, 1750, 2000 or 2500 volts calibrated to +/- 5% accuracy; NEMA recommendation for insulation test is twice normal voltage plus 1000 volts. Since this instrument has a capacity of 2500 volts, it readily accommodates all normal requirements.
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Product
Insulating Oil Testing
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Weshine Electric Manufacturing Co., Ltd
Weshine represent the absolute best in the field of transformer oil regeneration and corrosive sulfur removal. Several new features developed inhouse by our research and development department result in the state-of-the-art transformer oil regeneration equipment. Supplemented by our unique corrosive sulfur mitigation process integrated directly into the regeneration process.
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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
Insulated Mini-Alligator Test Lead Set
BU-00285
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Insulated Mini-Alligator Lead Set • Material: Clip: nickel-plated steel with PVC insulator; Hook-up Wire: #22 (19/34) AWG copper with 105° C PVC insulation • Length: 18”(.46 m) • Colors: Includes 2 each: Black, Red, Yellow, Green, White • Rating: Hands free testing at 300V, 5 Amps
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Product
5 kV INSULATION TESTER
MD-5075x
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The digital megohmmeter model MD-5075x is Megabras' cutting edge insulation analyzer equipment and it is one of the most complete and sophisticated available in the international market. A powerful software allows for further analysis of tests results, including features such as graphical representation and automatic report generation.
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Product
DC Resistance Tester
2511
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Shenzhen Chuangxin Instruments Co., Ltd.
DC resistance tester. Resistance test range: LW-2511: (10µΩ—2K five shift). Test speed:6 times/fast. Test accuracy:0.2%±2digits。
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Product
4 Wire Earth Resistance & Resistivity Tester
4235 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.
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Product
Winding Resistance Tester
JYR20S/10S
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DC winding resistance testing is regarded as another essential routine screening tool. It indicates problems such as loose, defective or incorrect connections, which cause enough transformer failures each year to be regarded as a failure category of its own.
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Product
Digital Milliohm Meter and Resistance Tester
4338 mO
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Standard Electric Works Co., Ltd
● Protection class: IP65 (Lid closed)● 4-Wire method for mΩ.● It's about 100mA at 1100.0mΩ range.● It's about 10mA at 11000mΩ range.● Measures down to 100µΩ (0.1mΩ).● Maximum resolution of 100µΩ.● Large LCD (68×34mm).● Relative mode. ● Data hold function.● MAX/MIN function.● Power source: 1.5V "C" battery × 8● Long battery life and stable power. ● Low battery indication.
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Product
Resistance Temperature Detectors
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Sensors used to measure temperature by correlating the resistance of the RTD element with temperature.
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Product
Metal Foil Low Resistance Chip Resistor
MFF
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*Low Resistance / TCR / EMF / Inductance*Excellent long term stabilityRoHS compliant and halogen free.*Lead free.*High precision current sensing and voltage division.
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Product
3 Terminal Digital Earth Resistance Tester
Model KM 1520
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Kusam Electrical Industries Limited
KUSAM-MECO Digital Earth Resistance Tester is a very versatile& handy instrument for checking Earth Resistance. It consists of the indicator & set of 3 spikes (stake) and connecting wires. Earth Resistance is measured by putting the spikes in the earth at distance of 5-10m (as shown below) & switching ON the instrument indicates the Earth Resistance directly in ohms.
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Product
DC Insulation Testing
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Diagnostic insulation testing today represents over a hundred years of constant development. When Sydney Evershed pioneered the first insulation tests in the late 19th century, the only measurable values were insulation at 500 volts and a basic continuity check. However, measurement techniques have continuously evolved to keep pace with new insulation technologies. From electronic design and household wiring to generators and power transmission systems, all different kinds of insulation must operate at a safe minimum value.
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Product
Industrial Coatings, Platings, Insulators
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Honeywell Aerospace Technologies
Honeywell has decades of experience developing materials for the extreme temperatures and stresses of aerospace applications. Now it’s making those specialized coatings, insulators and electroplating technologies available to customers in industries ranging from aviation to oil drilling.
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Product
Analogue (1kV below) Insulation Tester
2132 IN
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Standard Electric Works Co., Ltd
● High quality Taut Band movement.● Three insulation test voltages(DC) : 250V, 500V, 1000V.● Two continuity test on low ohms : 3Ω & 500Ω.● Compact and lightweight.● 200mA continuity short circuit current.● 1mA test current on insulation test at nominal voltage.● Automatic discharge of capacitive and inductive circuit with charge stored in the circuit under test. ● Live warning and display or external voltage presence.● Fuse, air gap, crowbar and overload protected.● On line battery monitoring shows if battery is ok.● Manual zero ohm adjustment.● Low battery consumption.● Mirror scale.● Push and turn locking switch for continuous and hand free testing.● BS 16 edition.
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Product
Resistive & Capacitive, Inductive AC Load Bank
RLC
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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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Product
0-5kv Programmable AC Hipot Insulation Tester
7112
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Shenzhen Chuangxin Instruments Co., Ltd.
Programmable AC withstand voltage insulation tester Feature: Small volume, light weight Easy to operate, has keyboard lock function
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Product
Resistance Welding
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Resistance welding is a method in which the welding works are heated by resistance heat generated by sandwiching the welding workpieces with welding electrodes, passing current through them, and the metal is welded while pressurizing the works.A resistance welding machine composed of welding power supply, a weld head and an electrode. The welding power supply controls a welding current,the weld head exerts a pressure on the material to weld and the electrode provides welding current and pressurization force to the part under welding. We have been providing various kinds of welding power supplies and welding heads to meet these requirements.
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Product
AC resistance bridges
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Designed for precise, accurate, low noise, low excitation power AC resistance measurements. Measure resistance materials in cryogenic environments.
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Product
Winding Resistance Meter 50Amps, 3 Channels
WR50-13
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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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Product
Insulation Oil BDV Tester
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Wuhan Fanke Transformer Manufacture Co., LTD
Insulation Oil BDV Tester
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Product
Contact Resistance Tester
JYL-200B/100B
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Product description: JYL-200B/100B contact resistance tester can measure contact resistance of high voltage switches and circuit breakeres, also can test primar side resistance of transformer and grounding wire in groups
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Product
Digital 5KV High Voltage Insulation Tester
Model KM 6305IN
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Kusam Electrical Industries Limited
• Microprocessor-controlled.• Tests insulation resistance up to 10 TΩ • 4 Insulation test voltages: 500V, 1000V, 2500V, 5000V.• AC / DC Voltmeter.• Short-circuit current up to 5mA• PI (Polarization Index) indication.• DAR (Dielectric Absorption Ratio) indication.• Auto-ranging on all insulation ranges.
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Product
Electrical Insulation Tester Kit with Dual Display
420001
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When undertaking power installations, the 420001-insulation tester can provide special help to test wiring. This unit can provide 125V,250V, 500V and 1000V source for the test, and under each range it can supply 1mA current to feed the capacitance load. With the auto-range function, it can measure up to 4,000 Megaohm with the resolution of 1Kohm.
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Product
Single-Phase Transformer Winding Resistance Meters
RMO-TT Series
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RMO-TT series is perfect for measuring winding resistance of inductive objects such as power and distribution transformers or autotransformers. Additionally, every transformer resistance meter from RMO-TT series can analyze:tap changers,generators,electrical motors,high-current busbar joints,cable splices,and welding joints.Transformer demagnetization can also be performed with all RMO-TT instruments.The series is consisted of 3 models, with maximal test current from 40 A (RMO40TT) to 100 A (RMO100TT). RMO100TT is the only portable transformer resistance meter in the market with 100 A DC output current.The three independent channels enable testing of three windings in series. Consequently, a user can measure winding resistance in every tap position of an on-load tap changer without discharging between the tests.In addition to winding resistance measurement, a user can perform a detailed on-load tap changer analysis by analyzing recorded graphs (10 kHz sampling rate) and by measuring vibrations on an external tap changer tank.All RMO-TT instruments have a built-in tap changer control unit. Because of this, it is possible to remotely control on-load tap changer (OLTC) directly from the device. Also, a user can program DV-Win software to do everything automatically – running winding resistance tests and changing OLTC tap positions.The DV-Win software also 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.All results can be exported in the report format.
