Current Transformers

The model 307A insulation tester is intended primarily for periodic testing of industrial motors, transformers, electrical wiring, and cable insulation for signs of deterioration. Low readings may indicate impending failure allowing for permit replacement of suspect component during routine maintenance rather than risking component failure. It ...more

The model 308A insulation tester is intended primarily for periodic testing of industrial motors, transformers, electrical wiring, and cable insulation for signs of deterioration. Low readings may indicate impending failure allowing for permit replacement of suspect component during routine maintenance rather than risking component failure. It ...more

The Model 7021U series of High Voltage Current Transformers was designed for the current input to MI?s LMS 4000/100 or LMS 2000/100 Loss Measurement Systems. Forvoltages above 100 kV see the Model 7022U. This design meets the requirements of both CEI/IEC 44-1 and IEEE STD C57.12.00-2000. The bushing is filled to approximately 150 kPa of SF6 an ...more

This insulation tester is intended primarily for periodic testing of industrial motors, transformers, electrical wiring, and cable insulation for signs of deterioration. Low readings may indicate impending failure allowing for permit replacement of suspect component during routine maintenance rather than risking component failure. It is also u ...more

The DTR-8500 is a portable digital transformer ratiometer designed for on-site testing of power, potential and current transformers. When connected to a non-energized transformer, the DTR-8500 accurately measures primary to secondary turns ratio, while simultaneously displaying polarity and excitation current. ...more

digital clamp meter. 3 ½-digit LCD display with automatic polarity indication. data-hold and backlight function. AC current measurements: max. 200A (via transformer jaws). AC voltage (max. 600V) and DC voltage (max. 600V) measurements. resistance measurements: max. 2Kohm ...more

The model 7020H series of Compensated Current Transformers use passive two stage compensated technology. ...more

These current transformers/probes measure AC or AC/DC current. These probes convert high current to a low level millivolt or milliamp signal for input directly into a test instruments. They can be used with standard DMMs, recorders, digital or analog meters, data loggers/DAS, oscilloscopes, or other test and measurement instruments.  ...more

The capacitance bridge type CB 10 is a modified Schering bridge, specially developed for measurement of capacitances without making any disconnections within the capacitor bank. The current through the capacitance to be measured is coupled inductively to the bridge via a high performance clip-on transformer. The test voltage (20?24 V), which i ...more

DAC-VCTT-6 is a Current-Comparator-type Transformer Bridge for testing ratio errors and phase angles of instrument transformers (VT/CT). This set alone enables users to test Current Transformers (CT) and Voltage Transformers (VT). It is transportable and suitable for on-site tests. ...more

Conventional instrument transformers have been widely used in medium voltage networks for transforming high current and voltages to a level suitable for measuring and protection. The introduction of new digital technology for measuring and protection has changed the demands. ...more

XL422 it's a meter of a new Data Logger family, which also included XL421, XL423 and XL424 models, that performing measure and recording of TRMS AC current up to 2500A in a generic three phase 3-wire system. Its can be very useful for various applications (i.e evaluation of load consumption, verification of nominal power of transformer, etc... ...more

The MPK-2000e digital very low resistance ohmmeter is a portable, microprocessor controlled instrument used to accurately measure resistances of switches and circuit breaker contacts, transformer and motor windings, wire and cable samples, joints in busbars, etc., using test currents from 1mA up to 10A. It uses the Kelvin-type, four-terminals ...more

The Medium Voltage Circuit Analyser was designed for a quick analysis of electricity meters measuring circuits without necessity of any disconnections. Both the primary and the secondary of the transformer can be simultaneously analysed, for which, along with the current clamps for 100 A and 100 A, high voltage current and voltage sensors, all elec ...more

DC Bias Current Source (or DC Magnetization Current Source) used for inductance measurement of inductors and transformer windings with DC bias current. Except for constant current output, low additional error and wide frequency response range are important for bias current inductance measurement. ...more

XL421 it's a meter of a new Data Logger family, which also included XL422, XL423 and XL424 models, that performing measure and recording of TRMS AC current up to 2500A in a generic single phase system. Its can be very useful for various applications (i.e evaluation of load consumption, verification of nominal power of transformer, etc...).  ...more

Current-based protection for feeders. Meters and logs current, current unbalance, thermal capacity, and earth leakage. Transformer overtemperature protection. Eight functions to protect against overcurrent, earth-faults, and phase loss  ...more

Partial discharges (PD) are symptoms of the developing problems in dry-type transformers rated 4 kV and above. PD creates small current pulses, which identify the extent and the nature of the developing problem. ...more

The MPK-102 high-current micro-ohmmeter is a truly portable, microprocessor-controlled instrument, used to accurately measure very low contact resistances of breakers and switches, busbars, transformer and motors winding  and motors, etc, with test current from 1 mA to 100 A.  ...more

For accuracy testing of instrument transformers. Current comparator principle matches different ratios of test object and standard transformer in a wide range display of the results in all accepted dimensions fully automatic remote control and data transfer via built-in RS232 interface  ...more

PEWM-1C ? portable energy standard class 0.5 with current clamp to 100A. PEWM 1/1 S ? energy standard class 0.1 with compensated current transformer to 100A ...more

DAC-ASM-7 enables the precision insulation measurement of Generators, Motors, Transformers, Cables, and Insulation Materials. The measurable Capacitance is from 100pF to10μF, Tanδ from 0 to 100%, and the applicable Test Voltage from AC100V to AC12kV. Using the CT&Cs Box with a High Voltage Current Transformer and a Standard Capaci ...more

These current transformers/probes measure AC or AC/DC current. These probes convert high current to a low level millivolt or milliamp signal for input directly into a test instruments. They can be used with standard DMMs, recorders, digital or analog meters, data loggers/DAS, oscilloscopes, or other test and measurement instruments.  ...more

For primary injection testing, high current is injected on the primary side of the current transformer. The entire chain?current transformer, conductors, connection points, relay protection and sometimes circuit breakers as well?is covered by the test.  ...more

The MPK-253 digital very low resistance ohmmeter is a portable, microprocessor-controlled instrument used to accurately measure resistances of  switches and circuit breaker contacts, transformer and motor windings, wire and cable samples, joints in busbars, etc., using  test currents from 1mA up to 10 A. ...more