Current and Potential Transformers
current and potential transformer T&M instruments.
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Isolation Transformers
Osborne’s Isolation Transformers are used to step-up, step-down and isolate voltages in single phase circuits. Isolation may be used to provide output circuit immunity from voltage spikes and noise (both common-mode and transverse-mode) present on the input system. The isolation can allow separate grounds on both the input and output sides of the transformer. Osborne also designs with a range of electrostatic shielding to provide several levels of noise immunity.
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Current Sensor For Outdoor Use
CT-41B
MULTI MEASURING INSTRUMENTS Co., Ltd.
Equivalent to protection grade IP67
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Current Measurements Of PWM Or Inverter, AC/DC 1～50A, Φ16mm
CTF-50DC-U24V
MULTI MEASURING INSTRUMENTS Co., Ltd.
*AC/DC 1～50A*Current measurements for PWM or inverter
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Current Tester
MIG1248
The MIG1248 is a current generator with wave shape 8/20. Maximum impulse current is up to 48kA supported by a 12kV impulse voltage making the MIg1248 ideal for testing large varistors. An intergrated test cabinet can accomodate test components up to 5cm cube.
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Test Equipment for Instrument Transformer
is desirable for measuring ratio errors and phase angles of low current (voltage) transformers used in electric devices, such as watt hour meters, smart meters, digital current meters, and transducers, etc.
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Isolation Transformers 230V
PeakTech Prüf- und Messtechnik GmbH
Due to the high safety requirements in service workshops, schools and industry, an isolating transformer is an absolute prerequisite for carrying out professional repair work. Galvanic isolation between primary and secondary voltage during measurements and repairs on open devices guarantees a high safety standard for the user. Of course, galvanic isolation from the mains voltage also offers other advantages in electronics development, audio technology and many other areas.
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High Current Resistance Measurement Systems
Measurements International Ltd.
Modular Designed Base Unit with Expanded Capabilities to 10,000 Amp, Complete Turn-key System, Resistance and Temperature Curves, Complete Measurement Systems Available, Proven Technology.
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DC BIAS CURRENT UNIT
3265B SERIES
To evaluate components at currents up to 125 A the 3265B DC Bias Units are used with either the Wayne Kerr 3255B series of Inductance Analyzers or the 3260B Precision Magnetics Analyzer. When one 3265B/25A or 3265BQ/25A DC Bias Unit is connected to an instrument up to 25 A of DC bias current can be set in steps of 25 mA with one unit. Additional DC Bias Units can be added such that with five units connected in parallel it is possible to set DC bias currents up to a maximum of 125 A DC.
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Leakage Current Sensors / Small Current Sensors
ChenYang Technologies GmbH & Co. KG
This current sensor is based on magnetic modulation and compensation principle, and can beused for measurement of small DC current and leakage current, current difference between two ormore conductors.
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Transformer Winding Resistance Meters
TWA Standard Series
The TWA standard series instruments are designed to measure the resistance of six coils and simultaneously analyze the three-phase tap changer on load of the primary and secondary transformer coils (provided by model TWA40). This is done in a single cable configuration, with test currents up to 40A. Each transformer configuration has a special measurement algorithm that is optimized for rapid stabilization of test results. The TWA instruments generate a true DC current without ripple. Both current injection and magnetic circuit energy discharge are automatically regulated.
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High Voltage Non-Contact Current Probe
P02-0802
The TESCO High Voltage Non-Contact Current Probe (Catalog No. P02-802) was developed using current sensor technology. It is a two-piece, True RMS ammeter with a fiber optic link between the high voltage sensor and the readout at ground potential. The sensor is mounted on a hotstick and slipped over a high voltage line.
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Digital Volt Or Current Meter
CS1/CS2-VA
Measuring Voltage or Current for DC / AC / TRMS Accuracy: DC: +/-0.04% or AC: +/-0.1%; Display range: -19999~29999 User function, Easily programmable via the front panel. 1 relay, 1 Analogue output or RS 485 communication port in option with flexible functions. CE approved
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Thin Film Current Sensing Chip Resistors
CSTN
*Thin film process*High power rating up to 3 watts in 2512 size*Resistance values from 50m to 1ohm*High purity alumina substrate for high power dissipation*Power management applications*Switching power supply*Over current protection in audio applications*Voltage regulation module (VRM)*DC-DC converter, battery pack, charger, adaptor,*Automatic engine control*Disk drive
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KVS Rugged Igniter Tester With Current Monitor
4314
The Valhalla Scientific Model 4314 KVS Digital Igniter Tester is designed to provide extremely safe and reliable resistance testing of explosive or volatile devices. Proven uses include fuses, squibs, igniters, explosive bolts, automobile airbag initiators and many others.
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16-Ch SPST 10A-277VAC High Current
YAV90086
16 power relays SPST Switching up to 2770VA 16A Switching 125Vac 10A Switching 277Vac CAN Control (or Ethernet with Ethernet to CAN Gateway) Drivers dll & VIs available
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8-Ch SPST 20A-250VAC High Current
YAV90087
8 power relays Switching 20A 250Vac PNP Outputs para control or YAV90304 control CAN Control (or Ethernet with Ethernet to CAN Gateway) Drivers dll & VIs available
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Laboratory EM current meter / water level and wave height meter
ACM2-RS and ACM3-RS are 2-D and 3-D electro-magnetic current meters for laboratory experiments. The models provide digital output, a high-speed sampling rate and insusceptibility to electro-magnetic noise. ACH-600RS is a highly sensitive capacitance water level meters. With the new system, a maximum of four different sensors can be connected to the compact interface unit, enabling simultaneous recording on a personal computer. Additionally, the system can provide analog output as well as necessary. While conventional water level and wave height meters cannot be used near velocity sensors, our instrument can be as near as 5 cm without increasing noise, due to its special isolated circuit. The result is an innovative system that is capable of achieving highly accurate data.
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Hall Effect DC Current Sensor
CYHCT-WS3
ChenYang Technologies GmbH & Co. KG
The sensor CYHCT-WS3 is a Hall Effect sensor for the measurement of DC current. The sensor has agalvanic isolation between the high power primary conductor and the secondary electronic circuit and withdifferent output signals and different power supplies.
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High Current Short Circuit Loop Impedance Meter
AMZC-310S
Measurement of very small short-circuit loop impedances (with resolution of 0,1mΩ) using the current of 150A under 230V, maximum 280A under 440V, or measurement using the current of 23A under 230V, maximum 42A under 440V
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AC Leakage Current Tester
229-2
Testing for dangerous small leakage currents is easy with the Simpson Model 229-2 Leakage Current Tester. For use in appliance field service, in the lab, or in production, the 229-2 approximates the human threshold of perception in detecting hazardous AC leakage current. The 229-2 comes with test leads with alligator clips, manual and batteries.
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8-Gas On-Line Transformer Gas Analyser
TRANSFIX
The TRANSFIX is an 8-gas on-line transformer DGA monitoring unit. Using specially developed advanced photo-acoustic detection technology, the TRANSFIX measures all significant fault gases (in ppm) as outlined by international standards as well as moisture in oil (%RH & ppm). The measurement of these gases allows the user to detect and diagnose a complete range of transformer faults.
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PXI Potential Divider Module 12-Channel (no resistors fitted)
40-282-021
The 40-282 is a potential divider with up 24 separate channels. This can be used to emulate potentiometer devices, each channel having a fixed R1 R2 ratio. Additionally, the centre point can be shorted to either of the potentiometer end points.
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Process / Voltage / Current
Calibrator high precision process signals able to measure and generate current and voltage.
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Distribution Transformer Tester
DOC-2000™
The DOC-2000™ is a test instrument designed for distribution networks transformers up to 167KVA. It can determine the presence of short circuits or an open circuit in the distribution transformer primary winding & also short circuits on the secondary winding. The DOC-2000™ is designed to be operated from an arial device or from the ground at the end of a hot stick without disconnecting the transformer’s secondary windings.
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Secondary Current Injection Test Sets
Our range of units covers applications up to 200A and includes single phase and three phase units with applications for testing and timing of IDMT relays, thermal overloads, MCB’s and auto-reclosers.
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Lightning Current Generator
Shanghai Guantu Technology Co., Ltd.
The lightning wave impulse current generator is an impulse current generator that generates a simulated lightning current waveform . Its working process is as follows: first, the transformer charges the capacitor bank through the silicon pile, when the charging voltage reaches a predetermined value, the spark gap is triggered, and the capacitor is discharged through the total inductance and total resistance of the circuit. When the resistance is greater than or equal to the critical damping value, a unidirectional impulse current wave is generated in the circuit. When the resistance is less than the critical damping value, an oscillating impulse current wave is generated. The magnitude of the impact current amplitude is related to the circuit parameters. When the capacitance value and charging voltage are the same, the smaller the inductance value, the greater the current amplitude. In order to obtain as much current as possible, a pulse capacitor with a small inductance value is usually selected, and the total length of the connecting line should be as short as possible when arranging the main capacitor, so that the total loop inductance value can be reduced as much as possible.
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Clamp type AC Current Sensor／for Power Monitor
CT-80PB
MULTI MEASURING INSTRUMENTS Co., Ltd.
*BIG CT WINDOW*AC 1A～500A*Current measurements of main cable
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Clamp type AC Current Sensor／for Leakage Current Measurements(ZCT Series)
ZCT-1100
MULTI MEASURING INSTRUMENTS Co., Ltd.
*Leakage current measurements of main cable*Ultra big CT window*AC 1mA～30A : 3080turns*AC 30A～3000A : 2000turns
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PXI/cPCI Programmable Power Supply - 16-bit Read Back Voltage and Current at Output
52912
Chroma 52912 programmable DC power supplies are designed specifically for test applications that demand precision output voltage/current and tightly coupled measurement capabilities.
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Current Probe
DCFlex
Power Electronic Measurments Ltd
The DCflex is an easy to use, low cost, thin and clip-around DC current probe. It is suitable for measuring large DC currents of >2kA. The DCflex takes a single shot measurement of the DC current with a typical accuracy of ±1%. It is important to understand that the DCflex does not provide a continuous measurement of DC current.
