Shunts
An Instrument Shunt is a resistor connected in parallel with a measuring device to move the current range beyond a particular value for which the instrument is capable of measuring directly.
See Also: Current Shunts
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Automatic Capacitance Bridge Tester
HTDR-H / 395
Wuhan Huatian Electric Power Automation Co., Ltd.
Measurement of high voltage shunt capacitor banks for reactive power compensation devices.
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Data Acquisition Recorders & Loggers
DAS1800
The DAS1800 can be configured for a wide variety of applications with slots for 10 input modules each supporting 4 or 8 measurement channels. Acquire data from any sensor with a voltage or current output (with shunt), or directly measure voltage, resistance, or temperature using thermocouples or resistance temperature detectors (RTDs).
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AC Power Analyzers
Measure voltage, current and power on 4 channels: DC, 1-phase AC or 3-phase ACMake more accurate power measurements: 0.05% at 50/60 HzMeasure current directly: internal shunts to 50 Arms, or with external probes or transducersAddress multiple test scenarios with isolated inputs
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Reactor Loss Measurement Systems
Measurements International Ltd.
The AccuLoss® SR2020 System by Measurements International emerges as a premium, dependable solution tailored for measuring losses in high-voltage shunt reactors. Specifically engineered to function seamlessly at remarkably low power factors, this system excels in applications demanding extensive scalability. Notably, the AccuLoss® SR2020 System offers two key advantages: unparalleled accuracy and remarkable speed.
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ADI Test Fixture
TA-6500
The TA-6500 test fixture combines the features of the OEM's Instrument Servo Tester(T307962), the Pointer/Flag Test Fixture(T307951) and the AD-650/600 Test Panel(T334043) all into one panel to facilitate testing of these Attitude Director Indicator's. The panel switches and adjustment pots are labeled to match the test procedure numbers and the duplicity in marking makes it easier for the technician to understand each function. The UUT interface is through a 96 pin zero insertion force(ZIF) type connector to minimize contact wear. The expanded localizer and nav input pins J2-34/35 are exposed on the panel to facilitate the insertion of a 200 ohm shunt when required. The fixtures rear panel has connectors for the required dual API/Synchro transmitter interface while the panel switches provide the correct routing of each.
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AC and DC Non Inductive Current Shunt
Series A co-axial shunt and Option 02F/B shunt
Use with wattmeters, DMMs and power analyzers to extend current measurement ranges. Use with phase angle meters to enable phase angle measurements between voltage and current. Ultra low phase shift
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Automatic Capacitance Bridge Tester
HTDR-H / 395
Wuhan Huatian Electric Power Automation Co., Ltd.
Measurement of high voltage shunt capacitor banks for reactive power compensation devices.
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Standard Resistor Oil Bath
9400
Measurements International Ltd.
Measurements International’s series of fluid baths are used for the maintenance of standard resistors and shunts. The 9400 has been designed after compiling years of customer feedback on existing resistor oil baths.
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Stand Alone/ Bench Top Load Cell Amplifier/ Conditioner Module
MODEL TMO-2
The TMO-2 Transducer Modules is a complete differential amplifier/signal conditioners with self contained power. The units provide excitation, balance and span adjustment via precision 10 turn pots, and shunt calibration necessary to couple a user supplied bridge type transducer to an indicating instrument. Full scale output is specified at plus or minus 10 VDC. The TMO-2 provides a floating shunt calibration circuit which applies calibration at the transducer, thereby eliminating errors due to line losses. The excitation supply incorporates a Wagner Ground to greatly improve Common Mode Rejection. The factory set bandwidth of the module is narrow to improve stability for applications such as weighing scales. The removal of a single capacitor will increase the frequency response DC to 60K Hz for dynamic data applications.
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Precision AC/DC Current Shunt
1625A
The BLI 1625A is a multiranging, high accuracy, active current shunt, for use in making NIST traceable measurements of currents from 10 microamperes to 100 Amperes. Very high measurement stability has been achieved in our shunt design by using special alloys, compensated by a proprietary Ballantine process to minimize temperature coefficient effects.
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FD-11637, 8-Channel Strain/Bridge Input Device for FieldDAQ
785641-01
8-Channel Strain/Bridge Input Device for FieldDAQ - The FD-11637 can measure eight channels and has built-in bridge completion and voltage excitation to support for quarter-, half-, and full-bridge sensors. It also features anti-alias filtering, offset nulling, and shunt calibration to reduce the effect of noise and improve measurement accuracy. The FD-11637 has an ingress protection rating up to IP67 (dust- and water-resistant), can operate in -40 °C to 85 °C environments, and can sustain 100 g shock and 10 grm vibration. The FD-11637 incorporates Time Sensitive Networking (TSN) and features an integrated network switch and built-in power circuitry for simple daisy chaining. You program the FD-11637 with NI-DAQmx, which automatically synchronizes multiple FieldDAQ™ devices. The FD-11637 is ideal for test cell and outdoor environments.
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Tan Delta Test System
Precision measuring bridge is designed for determining the capacitance and dielectric dissipation factor of liquid and solid insulants, cables, capacitors, line transformers, generators, motors, bushings etc. Furthermore it can also be used for power loss measurement on shunt reactors or similar apparatus. This system is suitable for both low and high voltage measurement at line frequency. Measurement reports can be printed. This measuring equipment has been specially developed to maximise efficiency in production and quality control environments. Its outstanding accuracy also makes it suitable for laboratory and research applications.
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Temperature Stabilized
Multiple Current Shunt
*IMPROVED ACCURACY*WIDE RANGE: <1 TO 300 A*HIGH IMMUNITY FROM AMBIENT TEMPERATURE CHANGESDC OR AC USE*TRANSPORTABLE*CUSTOM VALUES AVAILABLEWith new features, Ohm-Labs' model MCS Multiple Current Shunt for the first time overcomes much of the chief problem with accurate current measurement.
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Built-in Measuring Instruments
PeakTech Prüf- und Messtechnik GmbH
Practical built-in module as voltmeter with freely definable measuring range from 0 to 200mV, 2V, 20V, 200V or 500 V. Current measurements from 0 to 200µA, 2mA, 20mA, 200mA and 2A can be carried out via a shunt. With the snap-in frame, this inexpensive module can be integrated into any front panel of your own construction.
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Precision Shunt Chip Resistors
SMV
*5W permanent power at 65C*High pulse power rating*Mounting: Reflow and wave-soldering
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Electrical Standards
To verify the performance of an electrical calibrator or dc calibrator, you need an electrical standard. Fluke Calibration standards are found in primary calibration laboratories across the world. A wide range of electrical standards and frequency standards are designed to meet the needs of today’s laboratories for traceability and quality accreditation while also being portable, simple to use, and easy to support. Electrical standards include: Voltage standards; ac/dc transfer standards; ac measurement standards; resistance standards; ratio standards; current shunts.
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DC-to-250MHz, X1/x10 Probe Kit (HP-3250i), Isolated BNC
PRB-HP-3250i
Oscilloscope Probe 1:1-1:10 - HP-3250i250 MHz bandwidth, rated 600 V.The Oscilloscope Probe 1:1-1:10 - HP-3250i is a 1:1-1:10 selectable passive high impedance oscilloscope probe with 250 MHz bandwidth (1:10) designed and calibrated for use on oscilloscopes having an input impedance of 1 MOhm shunted by 20 pF. However, it may be compensated for use with an oscilloscope having an input capacitance of 10 to 30 pF.
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Repeated Charge Discharge Test Set
The IS 13341 : 1992 has laid down the requirements for Ageing Test, Self-Healing Test and Destruction Test on Shunt Capacitors of the self healing type for AC Power Systems. The Ageing Test is to be performed at a specified voltage of 1.25 times the rated voltage for 750 hours. The test is to be followed with a repeated discharge cycle test which involves charging of the capacitor to a DC voltage and discharge of the same through an Inductance. Sivananda Electronics has developed this equipment for the benefit of capacitor manufacturers, for the first time in India.
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Stand Alone/ Bench Top Load Cell Amplifier/ Conditioner Module
MODEL TMO-2A
The TMO-2A Transducer Modules is a complete differential amplifier/signal conditioners with self contained power. The unit provide excitation, balance and span adjustment via precision 10 turn pots, and shunt calibration necessary to couple a user supplied bridge type transducer to an indicating instrument. Zero to full scale output is specified at 4-20 mA. The TMO-2A provides a floating shunt calibration circuit which applies calibration at the transducer, thereby eliminating errors due to line losses. The excitation supply incorporates a Wagner Ground to greatly improve Common Mode Rejection. The factory set bandwidth of the module is narrow to improve stability. The removal of a single capacitor will increase the frequency response DC to 60K Hz for dynamic data applications.
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Shunt Resistor
RSR
Power converters and current measurement instruments. Large current shunt resistor for ampere-meters, designed for standard current measurement of electric equipment. Easy current measurement is performed by attaching to current bus bar directly and connecting to ampere-meter through flexible wires.
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NI-9238, ±500 mV, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Input Module
783311-01
±500 mV, 50 kS/s/ch, 24-Bit, Simultaneous Input, 4-Channel C Series Voltage Input Module - The NI‑9238 performs differential analog input. The measurement range is compatible with many low-voltage sensors such as current shunts and current transducers in high-current applications. When used with higher-voltage C Series Voltage Input Modules, the NI‑9238 can measure power and energy consumption for applications such as appliance test, industrial machine monitoring, power quality analysis, phasor measurements, and harmonic analysis.
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12-Ch 10A-250VAC RCV Power Distribution Unit
YAVAR438
- Hardware controlled Enable Input- 12 Power relays up to 10A 250VAC/DC and 300W or 2.700VA switching power- 12 10-mOhm shunt resistors.- 6 Switched 2-Pole sense channels- Single phase isolated or 3-Phases non-isolated switching capabilities, to or from the device under test (power or load)- VPC TriPaddle 96 pins connector.- NI LabView & TestStand driver.- .NET, C/C++, VB driver.- Soft Front panel for direct interface.- CAN Control or Ethernet (with Ethernet to CAN Gateway).- Self-test module available.- Form A
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Shunt Regulators
These are the standard reference voltage source widely used by the feedback circuits of switching power supplies. Compared to the Zener diode, which is a discrete product, a shunt regulator has much better voltage precision because voltage control is carried out as an IC.
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L Terminal Shunt Resistor
LT
LT shunts are highly accurate manganin resistance D.C. shunts. These shunts are designed for standard current measurement of electric equipment.
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Precision Micro-Ohmmeter
4176
Best-selling Valhalla 4176 ohmmeter measures transformers, coils, and shunts the competition can’t. The 4176 provides ultra-stable low-resistance measurements.
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High Impedance Active Probes
12C
A high speed, high input impedance active probe for measuring the internal node voltage of integrated circuits. The input is 1 megohm shunted by 0.1 pf and the rise/fall times are 0.8 ns. This instrument has full dc capability and can be used with any oscilloscope. The Model 12C was specially designed so that when used in conjunction with a high input impedance oscilloscope, signal attenuation is 10:1 and with a 50 Ohm input, signal attenuation is 20:1.
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Digital Arrester Clamp Tester
ALCL-40L
MULTI MEASURING INSTRUMENTS Co., Ltd.
Lightning arresters are designed to protect a power distribution system by shunting to ground the high voltage surges caused by lightning. ALCL-40L measures to warn that an arrester is damaged or deteriorated and should not be energized.
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Dual Wide Range Power Monitor
LTC2992
The LTC®2992 is a rail-to-rail system monitor that measures current, voltage, and power of two supplies. It features an operating range of 2.7V to 100V and includes a shunt regulator for supplies above 100V. The voltage measurement range of 0V to 100V is independent of the input supply. Two ADCs simultaneously measure each supply’s current. A third ADC monitors the input voltages and four auxiliary external voltages. Each supply’s current and power is added for total system consumption. Minimum and maximum values are stored and an overrange alert with programmable thresholds minimizes the need for software polling. Data is reported via a standard I2C interface. Shutdown mode reduces current consumption to 25μA typically.
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Midi Logger
GL240
Its compact size contains an isolated input system which ensures that signals are not corrupted by inputs to other channels, thus eliminating wiring concerns. The GL240s multi-type inputs are suitable for voltage, temperature, humidity, pulse, and logic signals, enabling combined measurements of different phenomena like temperature/humidity and voltage. power ground allowing off-ground measurements using shunts, as well as powered or grounded thermocouples.
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Wide Angle Scale Instrument
LS-96
Standard Electric Works Co., Ltd
● For ranges higher than 20A DC, use external shunt with a 50mV DC Ammeter.● For ranges higher than 300V DC, use external Volt Divider with a 1mA Voltmeter.● For ranges higher than 5A AC, use external Current Transformer with a 5A AC Ammeter. ● For ranges higher than 600V AC, use external Potential Transformer with a 150V AC Voltmeter.● Full Scale Deflection : 250° ● Accuracy : Class 1.5● Composition : Glass window, ABS resin frame and case, PC glass fiber base mounting fittings included.● Color : Black base and frame, white scale plate and meter body.● Pointer : Stick shape in black color.
