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Current Generators
Produce electric current.
- Pickering Interfaces Inc.
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PXI/PXIe Wide Current Range Multiplexer Module, Dual 3-Channel, 4-Pole
40-514-101
The 40-514-101 (PXI) and 42-514-101 (PXIe) are low density multiplexers in dual 3-channel, 4-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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Electronic Loads
The DSO and DSOT series electronic loads are designed using advanced linear technology.The DSO series offers two main functions: constant current and constant resistance. However, these loads can absorb full power between 20% and 100% of the acceptable input voltage thanks to the autoranging mode.For more extensive requirements, we offer 'DSOT' models that also include constant voltage and constant power functions. These functions are essential for testing voltage generators such as automotive alternators or photovoltaic panels to determine their power curve. In addition, DSOT models have a basic '0 Volt' characteristic, which means they can be used with input voltages as low as 0 Volt. However, they still maintain a high reaction speed, which can reach 1V/us and 8A/us.
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Signal Generator, 20MHz, 1 Channel
33509B
With these signal generators, Keysight introduces the highly accurate True form technology. It generates true point-by-point arbitrary waveforms with ten times less jitter than current Direct Digital Synthesis (DDS) technology. The tracking filters allow for clean, alias-free signals. The devices have USB, LXI and GPIB interfaces for remote control from the PC.
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Automatic Relay Test Set
DRTS 66
DRTS 66 is the most powerful diagnostic test set designed to perform accurate tests on protection relays, transducers, energy and power quality meters. This advanced test equipment is also thought to satisfy all the needs related to commissioning and substation maintenance. 6 Current and 6 Voltage generators simultaneously available.
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Signal Generator, 20MHz, 1 Channel, Arb.
33511B
With these signal generators, Keysight introduces the highly accurate True form technology. It generates true point-by-point arbitrary waveforms with ten times less jitter than current Direct Digital Synthesis (DDS) technology. The tracking filters allow for clean, alias-free signals. The devices have USB, LXI and GPIB interfaces for remote control from the PC.
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Insulation Testers
Shenzhen UYIGAO Electronic Technology Co., Ltd
Insulation testers test for capacitance and current leakage in system cables, generators and motors, high voltage equipment and switchgears.
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AC Resonant Test System
Yangzhou Power Electric Co., Ltd
Testing of certain apparatus requires much high voltage or current that a straight AC test system is not sufficient. Thus resonant test reactor with a variable core is needed. The main advantage of such test systems is lower input power and larger output power. The resonant test system is designed to compensate capacitance in the testing circuit precisely by tuning inductance of the test system. AC resonant test system is used for factory testing of middle, high and ultra-high voltage cables, capacitors, generators, motors, power transformers and gas-insulated switchgears.
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Arbitrary Current Generator Family
PXA(e)73xx
The PXA(e)73xx ArbGen family features up to two simultaneously working channels with 100MS/s, 16Bit resolution and an output current up to 30mA in sink mode (at up to 30V) or ±20mA in combined source/sink mode (at up to ±10V).Every channel is equipped with 2MB memory. The whole amount of 1 million samples can be partitioned into one ore more waveform segments. Depending on the number of channels and the floating option, the Arbitrary Function Generators are built into a compact 3U PXI(e) device for 1 or 2 slots.
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Signal Generator, 30MHz, 1 Channel
33519B
With these signal generators, Keysight introduces the highly accurate True form technology. It generates true point-by-point arbitrary waveforms with ten times less jitter than current Direct Digital Synthesis (DDS) technology. The tracking filters allow for clean, alias-free signals. The devices have USB, LXI and GPIB interfaces for remote control from the PC.
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Meter Test Benches
TST 3/5 UNIVERSAL
*A Three-Phase Voltage Generator EE-500 V for voltages up to 500Vac;*Five identical Modules EE-120A, each comprising three-phase current generators from 1 mA to 120A each) and Energy Standard Class 0.04;*Meter Suspension Rack with 5 positions for hanging the meter, Scanning Heads, Electronic Readers, Tariffs, Panic Button, Lamp;*PC with EE Software for control, memorizing, search and print of Reports.
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Earthing Resistance Tester
JYD-10A
transformer neutral grounding resistor is the vital need in medium voltage AC distribution network that are also called by different names like Neutral Earthling Resistors. They are taken into use to limit the current that would flow through the neutral point of a transformer or generator in the event of an earth fault. They are also used for resistance grounding of connected generators and transformers.
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Signal Generator, 20MHz, 2 Channel
33510B
With these signal generators, Keysight introduces the highly accurate True form technology. It generates true point-by-point arbitrary waveforms with ten times less jitter than current Direct Digital Synthesis (DDS) technology. The tracking filters allow for clean, alias-free signals. The devices have USB, LXI and GPIB interfaces for remote control from the PC.
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Current Differential Relay
SEL-587
Schweitzer Engineering Laboratories, Inc.
The SEL-587 Current Differential/Overcurrent Relay provides protection for any two-input apparatus, such as transformers, motors, generators, and reactors. Apply it for differential and overcurrent protection and use event reports for quick post-event analysis.
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PXI Instrumentation Modules For Automated Test Systems
PXI-based test systems often require a variety of general-purpose instrumentation such as digital I/O, waveform generators, voltage & current sources and DUT power supplies.
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Impuls Current Generator
Hilo-Test manufactures power generators for surge current material and safety tests, in particular for the examination of diverting elements such as gas discharge tubes, varistors, SPDs, and components in which such protective elements are installed, according to according to the IEC / EN 61643-11. Below you will find the right solution.
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Resistors
A passive two-terminal electrical component that implements electrical resistance as a circuit element. In electronic circuits, resistors are used to reduce current flow, adjust signal levels, to divide voltages, bias active elements, and terminate transmission lines, among other uses. High-power resistors that can dissipate many watts of electrical power as heat may be used as part of motor controls, in power distribution systems, or as test loads for generators. Fixed resistors have resistances that only change slightly with temperature, time or operating voltage. Variable resistors can be used to adjust circuit elements (such as a volume control or a lamp dimmer), or as sensing devices for heat, light, humidity, force, or chemical activity.
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Loading Rheostats (Resistive Load)
Supreme Instrument Laboratories
Loading Rheostat is a device specially designed to meet the requirements of Engineering Laboratories, Electrical Test Rooms and Industries. It is used for loading transformers, power generators, supply mains etc. neatly and efficiently. It can also be used advantageously for regulating current and adjusting voltage besides its application for calibrating meters and thus eliminating the need for graded rheostats.
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Air Core Neutral Grounding Reactors
Neutral Earthing (Grounding) Reactors, which resist current flow through inductive elements, are single phase reactors generally connected between ground and neutral of transformers or generators in order to control single line-to-ground faults at a desired level.
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Electronic Loads
Series EL
The EL Series is a line of modular aircooled, DC electronic loads used to test power sources such as batteries, power supplies, generators, chargers, fuel cells, etc.Power ratings start at 1KW; standard models have maximum test capabilities of 50, 200, 400 and 600 volts. High current and power operation are achieved via parallel connection in a master/slave configuration. Individual modules are capable of up to 5KW and 800 amperes.
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Impulse Generators and Measurement Systems
Designed to generate impulse voltages that simulate lightning strokes andswitching surges as defined by IEC, ANSI/IEEE, and other national standards on:• Distribution transformers• Small power transformers• Cables (type tests)• Arrestors (impulse current tests)• Motors / generatorsTesting ApplicationsImpulse Generators andMeasurement Systems• Insulators• Bushings• GIS• Instrument transformers
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Pulse Adapter
CV30P650
Frothingham Electronics Corporation
The CV30 P650 test station is currently the highest voltage pulser in a series of exponential pulse generators that can be connected to our FEC200E tester. This gives you all the versatility of the proven FEC200 with the addition of high power exponential pulses. The CV30 P650 pulse adapter can produce a maximum current of 100A at up to 600V using exponential pulses up the 10/1000 waveform. The pulser is rated at 30KW from 300V to 650V. Voltage compliance at 100A is 600V. The station can also include all of the usual FEC200 tests in the same test program.
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Single-Phase Transformer Winding Resistance Meters
RMO-TT Series
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.
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Waveform Amplifier
TS250
The TS250 Waveform Amplifier is a one of a king instrument perfect for amplifying signal generators. It is designed to amplify voltage, power or current for while driving heavy (low ohmic) loads. The TS250 offers eight voltage ranges to choose from ±10V to +65V. The TS250 output up to 6A peak current. To obtain higher current, parallel connect two or more TS250 in as shown in the Application Section.
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Motor/Generator Test Equipment
Winding ohmmeters RMO-M series measure winding resistance of inductive test objects such as electrical motors and generators. Motor test or generator test of winding resistance is especially important for early-stage failure detection.RMO-M series instruments generate true DC ripple-free current with automatically regulated measurement and discharge process. Even more, test instruments are portable and enclosed in a metal casing.Applications supported by DV Power motor/generator test equipment include:Winding resistance measurement of generators and electrical motorsResistance measurement of high-current bus bar jointsResistance measurement of cable splicesAll of the above-mentioned measurements are performed with the highest accuracy. The advanced DV-Win PC software enables collecting both numerical and graphical results. These features provide an easier and more efficient analysis. After the test, a DV-Win software generates a test report a single click. Finally, a user can easily customize the report and save it in different formats, such as XLS and PDF.
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Motor Winding Ohmmeter
RMO-M Series
The motor/generator winding resistance test is used to identify open windings, shorts between two windings, short to grounds, connection mistakes or shorted turns. This non-invasive test of winding resistance helps to pinpoint problems regarding windings in stator or rotor part of an electrical machine. Additionally, motor winding ohmmeter has the capability of performing heat run test which will show a change in windings resistance with an increase of temperature.The RMO-M series is designed as an ideal aid in preventive maintenance of electrical motors and generators. They are powerful (up to 100A of test current), portable (8 kg) and generate DC current which is completely ripple-free. This makes measurement very precise with 0,1% accuracy.Three voltage channels make measurement very easy since it is possible to obtain a value of all three winding resistances in one measurement
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Electronic Loads
Flexible electronic DC loads for general purpose applications. Voltage up to 80V, current up to 80A and power up to 600 watts. CI, CR, CG, CV and CP modes, built-in transient generators. Models with USB, RS232, GPIB and LXI compliant LAN interfaces.
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Automatic Relay Test Set
DRTS 34
DRTS 34 is the most powerful diagnostic test set designed to perform accurate tests on protection relays, transducers, energy and power quality meters. This advanced test equipment is also thought to satisfy all the needs related to commissioning and substation maintenance. 3 Current and 4 Voltage generators simultaneously available.
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Surge Generators
Hybrid
Surge pulses occur due to direct or indirect lightning strikes in a circuit or by switching transients caused by switching inductive loads or short circuits. This leads to currents or electromagnetic fields causing high voltage or current transients. Surge voltages and currents can reach several thousands of volts and thousands of amperes. Our following Surge generators simulate these disturbances for all the necessary level in accordance with IEC / EN 61000-4-5 and IEC / EN 60060.
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High Current Sensor
HCS-BTA
Vernier Software & Technology, LLC
Use the High Current Sensor in experiments that involve currents larger than 1 A, such as solar panels, hand generators, and other alternative energy projects.
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Generators
We offer a wide range of power supplies, current and voltage supplies, frequency references, RF generators, transceivers.
