Current Comparators
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Product
Primary Current Injection Test Set
T 3000
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T 3000 is a primary current injection testing system designed to perform primary tests requested in substations commissioning. It allows to perform different tests and measurements on current transformers, voltage transformers, power transformers, protection relays, energy meters and transducers
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Product
Lightning Current Generator
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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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Product
Time, Current, And Resistance Meter
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AllWin Instrument Science and Technology Co., Ltd.
1. Time, current and resistance can be displayed simultaneously2. Out put current:5~30A. Ground resistance range: 50~600 mohm
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Product
AC/DC High Sensitivity Clamp-On Current Probe
N7026A
Oscilloscope Probe
The Keysight N7026A is a 150 MHz bandwidth, active current probe for InfiniiVision and Infiniium oscilloscopes. The probe features wide and flat bandwidth (DC-150 MHz), lower noise (<250 µArms), and wide input range (up to continuous 30 Arms or non-continuous 40 Apeak). This enables you to measure down to 1 mA/div, giving you a much more accurate view of your low-level signals.
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Product
PXI Analog Output / Current Loop Simulators
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These modules are aimed at simulating industrial control transceivers, utilizing 4–20mA current loops. The modules include built-in relays for shorts and opens functionality enabling fault insertion testing on every channel and also enable slew rates to be programmed so that different sensors can be effectively mimicked.
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Product
Primary Current Injection Kits
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During installation,testing,especially if the protective gear is connected to the power line via a current transformer it is advisable to use our Primary Injection Test Set. Keeping this in mind a wide range of Primary Current Injection Test Sets are being manufactured by "NMC”.
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Product
Fully Integrated Eddy Current Instrument
MIZ-28
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MIZ-28 delivers more technology and exceptional performance for high-speed and high-efficiency inspection of heat exchanger tubing. It comes equipped with industry leading data management features with more on-board data storage and easy file transfer.
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Product
High AC Current Capacitors
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HK Film Capacitors offer a selection of High AC Current Capacitors ( continuous duty) with Temperature up to +105C
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Product
L.V. Current Transformers
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ENTES LV Current Transformers are measuring transformers which transform the primary current by a specified ratio to its secondary side with a phase difference of 0 degrees. They provide isolation of the relays and measuring devices from the HV side of the network.
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Product
Hall Effect DC Current Sensor
CYHCT-L20K
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ChenYang Technologies GmbH & Co. KG
The sensor CYHCT-L20K is based on open loop principle and designed with a high galvanic isolationbetween primary conductor and secondary circuit. It can be used for measurement of DC current, DCpulse currents etc. The output of the transducer reflects the real wave of the current carrying conductor.
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Product
12-Channel VME Current Loop/Process Control I/O Module
V220
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The V220 is ideal for driving and sensing transducers in computer or PLC-based control systems. It can also be used to simulate complex industrial processes to control systems under development and certification.
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Product
PXI/PXIe Wide Current Range Multiplexer Module, Quad 3-Channel, 2-Pole
40-514-103
Multiplexer Module
The 40-514-103 (PXI) and 42-514-103 (PXIe) are low density multiplexers in quad 3-channel, 2-pole configuration. They are capable of switching a wide range of current, from 10 μA to 2.5 A at 220 VDC/250 VAC. The current capability of the module permits the use of a single module type for both low and medium current test applications.
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Product
Frequency to Current Converter
DAT4540R
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The Frequency to Current converter DAT4540R is a signal conditioning din rail mount converter which converts a pulse input to an analog output equal to the set range which is selectable from 0.1 Hz up to 20 KHz. The DAT4540R also provides 2 relay outputs and a transistor output. The input can be from a Tacho, TTL, PNP transistor or from any Namur standard. The DAT4540R provides a Voltage or Current output that is isolated from the power supply and input.
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Product
PXI/PXIe Wide Current Range Multiplexer Module, Single 12-Channel, 2-Pole
42-514-105
Multiplexer Module
The 40-514-105 (PXI) and 42-514-105 (PXIe) are low density multiplexers in single 12-channel, 2-pole configuration. They are capable of switching a wide range of current, from 10 μA to 2.5 A at 220 VDC/250 VAC. The current capability of the module permits the use of a single module type for both low and medium current test applications.
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Product
Thermistors (Temperature Sensors, Current Control)
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The resistance value changes in response to temperature changes in the ambient environment or due to heat generated by applied voltage or current.
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Product
AC/DC Leakage Current Tester
228
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Test for dangerous leakage current with the Simpson Model 228, designed to meet the latest UL, IEC, and ANSI specifications. The 228 detects both AC and DC leakage current and simulates human response at three different levels -- reaction, let-go, and burn hazard. Each Model 228 comes with test leads with alligator clips, manual, and batteries.
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Product
Automated Leakage Current Tester
LINECHEK® II Series
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Our LINECHEK II Leakage Current Tester is designed for medical device manufacturers. With a feature set built around maximizing the efficiency of the Leakage Current test, LINECHEK II satisfies medical application requirements demanding up to 40 Amps of continuous line current. Use it on the bench or in a rack, from the front panel or via a PC interface to ensure your medical device is ready for global deployment.
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Product
Mini AC Leakage Current Clamp Tester (CE)
M-140
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*40mmφCT window and ultra compact size.*Least affection from the external magnetic field.*Wide current measurements.(AC0.01mA-300A)
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Product
Wide Range Flexible Current Probe
EFX6000
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The EFX6000 is a flexible AC current clamp utilizing the Rogowski principle. It can be used to measure currents from 1 amp to 6000 Amps in 2 auto-ranges, over a wide frequency range to 10kHz. The flexible and lightweight measuring head allows quick and easy installation in hard to reach areas, around large conductors and where access to confined or tight spaces is a problem. It requires no batteries or external power supply.
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Product
High Current Short Circuit Loop Impedance Meter
AMZC-310S
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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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Product
AC Current Digital Clamp Meters
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Precision Mastech Enterprises Co.
Handheld, safe, and non-contact electrical tools designed to measure alternating current (AC) without disrupting the circuit
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Product
PC Based High Current Test Set for Circuit Breakers and Temperature Rise Test Equipment
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This equipment comprises of high current source for testing of circuit breakers with additional facility for temperature rise testing (thus incorporating testing for moulded case, vacuum & air circuit breakers as per IEC 60947-2). The system integrates a servo controlled source with closed loop current feedback to maintain the current constant. It has the necessary instrumentation for maintaining current at full load & other conditions arising in testing at high current. The bench has a PC based control system with temperature data logger (24 channel with ch-ch isolation amplifiers). The data logger displays as well as stores a set of temperature values with time.
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Product
Standard Current Transformers
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Measurements International Ltd.
Single Range, Highest Permeability, Wide Measurement Range, Negligible Current Errors, High Accuracy.
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Product
Large Current 1000A Primary Current Injection Test Set
TEST-901
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Beijing GFUVE Electronics Co.,Ltd.
TEST-901 primary current injection test set adopts ARM Chip to control its output process and large capacity of toroidal transformers. It is equipped with LCD display and current meter; it can show primary current value, second current value, turn ratio and the action time. Packing is used as aluminum alloy body with PC panel. TEST-901 is mainly applied to CT turn ratio testing in the power system and contact resistance test which need large current.
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Product
Current Differential and Overcurrent Relay
SEL-387
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Schweitzer Engineering Laboratories, Inc.
Protect and control any two-, three-, or four-winding power transformer with the SEL-387, which provides thermal and through-fault monitoring, and with SELogic Control Equations, can detect breaker failure.
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Product
Current Sensing
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voltage-output, current-sensing amplifier family that integrates an internal shunt resistor to enable high-accuracy current measurements at common-mode voltages that can vary from 0 V to 36 V, independent of the supply voltage. The device is a bidirectional, low- or high-side current-shunt monitor that allows an external reference to be used to measure current flowing in both directions through the internal current-sensing resistor sensor. The integration of the precision current-sensing resistor provides calibration equivalent measurement accuracy with ultra-low temperature drift performance and ensures an optimized Kelvin layout for the sensing resistor is always obtained.
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Product
Clamp type AC Current Sensor／for Power Monitor
ZCT-40PS
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*Compact size*AC 1A～500A*Current measurements of feeder
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Product
Primary Current Injection Testers
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Primary Current Injection Tester is designed for testing protective relay and circuit breakers and also testing the turns ratio of current transformers at high variable currents. A test current is injected into the primary side of a system to determine how the system behaves at particular levels of current. This test makes it possible to determine whether the relay will trip and how long the current needs to flow before the trip is initiated.
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Product
Bench Power Supply, Power Supply, Portable, Current Limiting, 0 To 30 V DC / 0 To10 A
72-13095
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Digital Multipurpose Switch Mode Power Supply is housed in a lightweight enclosure with integral handle, making it great for benchtop or field use. Tri-mode operation includes standard power supply output, battery-charge mode and USB power/charge modes. The unit provides variable voltage up to 30VDC, with adjustable current limiting to 10A and will operate at full 300W output for up to eight continuous hours. Fixed 5VDC, 2A output is provided via fron panel USB jack, variable output provided via standard banana jacks.
