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Three Phase
Three voltage waveforms at 120°,1/3 of a cycle offset in time.
- Pickering Interfaces Inc.
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PXI Three Channel Function Generator
41-620-003
The 41-620 is a compact 3 channel function generator provided in a PXI 3U single slot module. It is capable of generating sine waves to 10MHz with 48-bit frequency resolution referenced to the 10MHz PXI clock or to an external standard. The 41-620 can generate arbitrary waveforms loaded into the internal 256k memory, allowing the function generator to emulate many waveform types, including the typical waveforms of automotive and aerospace sensors.
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Advanced Three Phase Automatic Relay Test Sets
MP 3000 Series
Advanced three phase automatic relay test set. PC control through user friendly MPWIN Relay Test Software. High accuracy and high power over wide range. Suitable for IEC61850 GOOSE simulation, subscription and sampled value publishing. CE, FCC.
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Three Phase Electronic Meter DTS999
Bofa Instrument & Equipment Co., Ltd
DTS999 series Single Phase energy Meter are new and high-tech products adopting special large-scale IC, latest micro-electronic technology and SMT production crafts. It is designed for rough working condition and components selection as foundation, so it can ensure the long-term stable operation. DTS999 series Electronic Single Phase Watt-hour Meter features long life, high accuracy, high reliability, high allowable overload, little power consumption, small size & light weight, etc.
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Power Transformer
Transformer turn ratio meter is special designed for power transformer (single phase & three phases) and instrument transformer testing, suitable for testing in substation, transformer manufacturer, meter manufacturer. It helps to detect faulty transformer winding and tap changer position. It’s fully automatic device, can recognizes winding connection and vector group number of transformer winding. The user only need connect measuring cable and press start button and come out the test result.
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Three Phase Power Analyzer
930A
Model 930A Three Phase Power Analyzer is an economical alternative to the Model 931A Power System Analyzer when the dc voltage measurement, transducer calibration and timer features are not required. The Model 930A has the same ac accuracy as the Model 931A with PowerDSA™ Digital Signal Analysis. Basic accuracy of 0.05 % of reading and 0.05 ° phase, harmonic analysis, and full three-phase capability are standard.
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Three Phase Power Meter
929A
Model 929A Three Phase Power Meter is an economical alternative to both the Model 931A Power System Analyzer and the Model 930A Three Phase Power Analyzer when serial communication, dc voltage measurement, transducer calibration and timer features are not required. The Model 929A has the same ac accuracy as the Model 931A with PowerDSA™ Digital Signal Analysis, and is a complete diagnostic tool for use in the substation and industrial power environment.
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Voltage Recorders
Voltage Optimisation & Voltage Stablisation have become popular; the Electrocorder range of single & three phase Voltage portable Recorders are extensively used in this area as well as supply voltage analysis.
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Phase Sequence Indicators (Contact Type)
865 PR
Standard Electric Works Co., Ltd
● The 865 PR is a detector with LEDs to show the de- tection better visible than neon. ● Three functions in one unit, including open phase, phase sequence and 3 phase motor rotation.● Designed for checking a wider range of 3 phase power source from 100V to 600V.● Indicates R.S.T LEDs which frequency range from 40Hz to 400Hz.● Wide range detection of motor frequency range from 2Hz to 400Hz.● Fixed magnets for convenient measurement.
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Three Phase Meter Qualification Board
MQB3
Apply true three phase voltage and current to electric meters, enabling them to be tested under all possible conditions that may be encountered in the field with TESCO’s Three Phase Meter Qualification Board (MQB3).
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SCR CONTROLLED DC POWER SUPPLY
PS Series
Variable DC power supplies are AC to DC power supplies with a variable DC output. The output can be varied with an SCR controller. The AC input power can be single phase or three phases. With single phase AC input, the DC output ripple is very high (50%). With three phase AC input, the DC output ripple is low (5%). This would be a key benefit for selecting three phase AC input instead of single phase.
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Distribution Transformer Test System
DTTS Series
Shanghai Jiuzhi Electric Co., Ltd.
The DTTS Series Distribution Transformer Test System are self-contained test sets incorporating all features necessary for testing single and three phase distribution transformer.
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LV Iron Core Line & Load Reactors
Line and load reactors are generally serial-connected to the input and/or output terminals of three phase equipment such as motor speed controllers, inverters and UPS systems. These equipment make use of semiconductor switches such as IGBTs, thyristors, and diodes and therefore create harmonic distortion and high switching over-voltages (dv/dt). Use of such equipment has been becoming more widespread as the technology advances. However, the negative effects of these equipment should not be overlooked.
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Transformer Turns Ratio Meter
TTRM 302
SCOPE introduces state of the art precision three phase Transformer Turns Ratio Meter (TTRM ) designed for field testing as well as factory testing of power transformers, instrument transformers and distribution transformers of all types. Along with turns ratio, this light weight and reliable instrument measures ratio deviation, phase angle deviation, magnetizing current and detects tap-position of single as well as three phase transformers in charged switchyard condition. The instrument has facility to automatically detect vector group of all majority configurations available. The differant AC voltage selection offers high accuracy in measurement.
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Test Equipment
Rotary Field Checker
Smart Three Phase Rotation Tester. Test Leads. Phase Rotate Tester is a 3 phase tester to identify the correct connection from the power supply. Also, it can identify the missing phase of the power supply too.
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Three Phase Reference Standard Meter
Signals & Systems India Private Limited
The Three Phase Reference Standard Meter (TPRS-1107) is portable equipment from SANDS. The main objective of this device is to calibrate the errors in three-phase and single-phase energy meters i.e. the meter under test (MUT). The TPRS supports both static and electro-mechanical types of meters. It can also be used to compute the voltage, current, energy, power factor etc of the meter under test. It has an LCD display, an alphanumeric keypad that makes it easy for the user to operate the TPRS. It can be interfaced with the PC for data analysis. It has the capability of storing up to 8000 test results.
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Three Phase Relay Test Set
RELTEST 1000
RELTEST 1000 is a multifunctional relay test set, especially designed for distribution, smart grid and renewable energy plants.
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Phase Rotation Tester with Voltmeter
885 PR
Standard Electric Works Co., Ltd
● 3 functions in one unit: Phase Rotation, Phase Presence, Voltmeter● LCD contact type Phase Rotation Tester● Large LCD to show phase rotation and phase presence● Check a wide range of three phase power sources● Voltage range for phase rotation test: 75~600V AC ● Frequency range: 40~400Hz● 6000-count voltmeter● Auto ranging Voltmeter AC/DC● Data hold function● Auto power off● Convenient stand for viewing● Easy to use● Comply with EN 61010-1 CAT III 600V EN 61010-2-033 EN 61326-1
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Three Phase Round Energy Meter Test Bench Type KP-S3000-C
Bofa Instrument & Equipment Co., Ltd
Three phase Round energy meter test bench Type KP-S3000-C is designed for testing three-phase round energy meters (ANSI Socket type), it is mainly exported to countries in Noth America and South America. It is an ideal testing eqiupint for energy meter factory or R&D institute. All the testing procedures can be automatically operated by PC or by Keyboard manually.
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3 Phase Voltage Extension To Turns Ratio Meter
T-REX
The Raytech three phase voltage system option T-Rex is an optional system accessory for 3-Phase transformer ratio meter test sets designed by Raytech (i.e. TR-MARK III). T-Rex was designed to give Engineers and Test Technicians the ability to test the phase relationships and actual voltage ratios of transformer windings while applying three phase voltage.
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Programmable AC Power Source
Chroma Systems Solutions, Inc.
The Chroma programmable AC power source 61500/61600 series are the right solutions to meet complex single and three phase requirements due to their ability to simulate AC line conditions and measure critical product characteristics during testing. These features make the 61500/61600 series ideal for commercial, power electronics, avionics, military, and regulation test applications from bench-top R/D design verification and quality assurance to mass production.
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Three-Phase Transformer Winding Resistance Meters
TWA Standard Series
When it comes to winding resistance measurement on three-phase power transformers and autotransformers, TWA Standard series offers some of the most technically advanced instruments with LCD display in the market. Both models are capable of testing six transformer windings with a one-time cable connection, as well as three-phase automatic transformer demagnetization. The stored magnetic energy is safely automatically discharged at the end of the test. The built-in tap changer control unit enables automated test mode, where the instrument operates the tap changer without operator input and records winding resistance results based on pre-selected stabilization criteria. This option makes the operator’s job significantly easier.Both models can output test currents from 5 mA to 25 A DC for the purpose of winding resistance measurement. TWA40D has a special test mode for checking the synchronization of on-load tap changers with three phases simultaneously tested in parallel, in which the total test current can rise to up to 40 A DC.TWA40D has additional advantages when it comes to non-intrusive tap changer analysis. The unique DVtest method enables checking the moving contacts of on-load tap changers during the transition, measuring the transition time, detecting open circuits, and many other types of faults. It is performed with 0.1 ms sampling rate, simultaneously with the measurement of tap changer motor current which helps with the detection of motor and mechanical issues. A special proprietary algorithm is used for testing tap changers connected through a built-in series (booster) transformer. The DVtest can be performed either on one phase or on three phases simultaneously. It can also be performed as an additional test simultaneously with the winding resistance test in all tap positions.An additional unique advantage of TWA40D is the capability of simultaneously testing the winding resistance of all three phases of a three-phase transformer (connected in a YN configuration). This can significantly shorten the total testing time – for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.The test leads for TWA three-phase transformer winding ohmmeters are interchangeable with the TRT turns ratio testers, which means that both sets of tests can be performed with a single test lead connection to the power transformer terminals.
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Multifunctional Meter
CPM-10
Chuan Sheng Electronics Co., Ltd.
CPM-10 Multifunction Power meter measure single phase 2 wire ,single phase 3 wire, three phase 3 Wire and 3 Phase 4 wire systems with high accuracy measurement for parameters such as voltage, current ,active power, reactive power, apparent power, power factor ,frequency, effective energy (V,A,W,Watt-Hr,Var,Var-Hr,VA,PF,Hz), having LED display and standard communication RTU Modbus RS485..Optional functions 1 set relay output,1 analogue,1 RS485 (ModbusRTU Mode) or 1 pulse output. Most suitable for power management,remote input /output, alarm and remote signal control uses needs.Case depth 120mm only, easy panel mounting installation
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Transformer Rectifier Assemblies
Transformer rectifier assemblies are very useful in OEM applications when unregulated DC output is required. Input power can be single-phase or three phases. With single-phase input power, the output ripple is 50%. With three-phase input power, the output ripple is 5%. A 5% output ripple is a clear advantage. Hence, transformer rectifier assemblies with three-phase input power are more popular. Circuit breakers, fuses, voltmeters, and ammeters can be added per customer requirements. The assemblies can be an open frame or inside an indoor enclosure.
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Motor Diag & Protection
Phase Sequence and Motor Rotation Meter
*Phase Sequence and Motor Rotation meter detects live phase and sequence orientation of three phase power sources and industrial equipment conductors to ensure proper installation.*Motor rotation function identifies rotational direction of industrial equipment such as motors, compressors and generators.*Non-Contact Motor Rotation feature determines rotation of running single-phase and three-phase motors without the use of leads.
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Automatic Three Phase Transformer Ratio Meter
ATRM PLUS
*Fully Automatic measurement.*Wide selection of Excitation Voltages of 10V, 40V, 100V, 230V & 250V from front panel.*4V Excitation voltage provided for CT measurements*Ratio range of up to 5000; direct display of measured ratio.*No conversions required.*Automatic Jumper selecting as per the vector*Diagram of Transformer.*Automatic testing of all 3 phases in 3 phase transformers*Without manual intervention.*Displays % deviation from a nominal ratio.*External storage facility using pen drive.*Internal storage up to 10000 readings.*Touch screen 7” Color TFT display with backlighting with*Resolution of 800 X 480.*Tap changer facility.*Computer interface using RS-232 or USB.*Windows Interface software provided for data transfer.*USB printer interface.*Four terminal measurements to reduce errors due to*Winding and lead resistance.*Auto print and storage facility.Fast measurements.
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DC Resistance Tester
GDZRS-20A
GDZRS series Winding DC resistance tester is optimal designed for measuring three phase winding DC resistance of big capacity transformer. It can test three phase winding DC resistances at the same time
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Single Position Meter Test Station
LS3
Calmet Smart Calibration Devices
Stationary three phase system class 0.01% for automatic testing of single electricity meter. It allows to test all type of meters
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Transformers
RR Enterprises provides all type of transformersSingle Phase and Three Phase upto 100 KVA.The transformers can be→ Air Cooled→ Epoxy Cast→ Oil CooledWe provide transformers in high voltage and low voltage. These are used for various industrial and research purposes.→ High voltage transformers for corona and static elimination.→ High voltage transformers for plasma welding.→ Special purpose high voltage transformers.→ High current transformers for metalissing plants.→ Special purpose high current transformers.
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Power and energy calibrators
Three or single phase electric power/energy calibrator with power quality functions for calibration and testing of grid measuring appliance like power meters, power transducers or power quality analysers.
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Three-Phase Transformer Demagnetizer
DEM60C
After a DC current test, such as winding resistance measurement, the magnetic core of a power or instrument transformer may be magnetized (remnant magnetism). It can cause various problems such as wrong diagnostics, inaccurate measurements on a transformer, inrush current at the start-up of a power transformer, or incorrect operation of protective relays due to magnetized CT cores. The best way to eliminate this source of potential problems is to use demagnetizer on the power or instrument transformer.The DEM60C is a fully automatic test instrument which performs three-phase transformer demagnetization. Transformer magnetic core demagnetization requires the application of AC current with magnitude decreasing to zero. DEM60C provides this AC current by internally changing the polarity of a controlled DC current. During the demagnetization process, the instrument supplies the current at decreasing magnitude for each step, following a proprietary algorithm. It can demagnetize single-phase and three-phase power transformers.The instrument can be connected to all three phases of a power transformer to be demagnetized, on either the primary or the secondary side. If a user selects specific vector diagrams for different types of transformers, DEM60C will run a specific demagnetization procedure for each transformer type (i.e., single phase, delta, wye/star, zig-zag.) without switching the test leads.DEM60C enables safe and efficient power transformer demagnetization. The instrument automatically regulates the injection of current and discharging energy from the inductance. During and after the operation, an intrinsically safe discharge circuit with an indicator rapidly dissipates the stored magnetic energy. The discharging circuit is independent of the power supply, which improves its reliability in case of loss of power.Test currents of up to 60 A DC enable efficient demagnetization of even the largest power transformers. Using a DV Win software, it is possible to control DEM60C externally.
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Transformer Ratio Meters
TRM-200
Three phase lead switching network • Excitation current meter Accessories: Range Extender 1:5.
