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Variable Transformer DC Power Supplies
Variable DC power supplies are AC to DC power supplies with a variable DC output. The output can be varied with a Variable Transformer (also known as variac). The Variable Transformer can be adjusted manually or with a motorized control. 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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Test Setup For Air Conditioner
SCR ELEKTRONIKS have developed TESTING SET UP FOR SINGLE PHASE / THREE PHASE MOTOR for carrying out Performance Test, Earth Contact Resistance Test, High Voltage Test, Megger Test and Leakage Current Test. It consists of Voltmeters, Ammeters and Wattmeters for observing the values of different parameters. OK / NOT OK lamps are also provided to display the results of Earth Contact Resistance Test, HV test, Megger Test, Leakage Current Test. All tests are provided with tripping cut off concept.
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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...show more -
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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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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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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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Secondary Current Injection Test Trolley
SCR ELEKTRONIKS have developed SECONDARY CURRENT INJECTION TEST TROLLEY for Switchgear items, CT manufacturer and where three phase current application is called for. It is low Voltage, 3 phase Current source with control circuitry, digital read out for test current and trip time measurement. We can select different CT ranges for each phase independently and adjust the current as per the required test Current.
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Transformer Turns Ratio Tester
CXBC-901
Shenzhen Chuangxin Instruments Co., Ltd.
Transformer Turns Ration Tester is applied to measure the voltage ratio and group testing of the three or single phase transformer. All the test results could be printed by the micro printer or saved in the tester.
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Power Sources
GF303
Beijing GFUVE Electronics Co.,Ltd.
GF303 Program-controlled three phase AC standard power source is a high precision three phase AC standard current source and AC standard voltage source.
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Metra Power Clamp
1000A
Metra Power Clamp 1000A/400A measures, calculate and displays important electrical pa-rameters of single phase or three phase power system. It also features Resistance, continuity, diode and non contact voltage detection.
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901 Three Phase 40A
Weshine Electric Manufacturing Co., Ltd
1.Windows XP operation interface, high-performance embedded industrial control computer, easy and fast operation.2.It has software self-calibration function, which greatly improves the accuracy and stability.3.The power amplifier adopts high-fidelity linear power amplifier, which not only ensures the accuracy of small current, but also ensures the stability of large current.
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EMC Compliance Test Systems
ECTS2
Now in its second generation, the ADAPTIVE POWER EMC Compliance Test Systems use a greatly enhanced harmonics and flicker measurement system and newly designed flicker impedance options to support single and three phase AC harmonics, flicker and AC and DC immunity compliance testing up to the maximum required current of 75A per phase.
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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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Electricity Meter Test Equipment
The Reference Standard RS is precision standard meter in single- and three-phase version for electrical power and energy measurement. It is designed to meet all requirements put on a reference standard in a single- and three-phase electricity meter testing and calibration systems. The Reference Standard can be set to any true or artificial mode of operation in three phase system and is capable to evaluate individual quantities in any phase
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Three Phase Transformer Ratio Meter
*Three phase lead switching network. *Excitation current meter Accessories: Range Extender 1:5
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AC Power Calibrator
LS3300
The LS3300 is an AC signal generator capable of outputting both current and voltage simultaneously, thus allowing it to calibrate power meters. Providing output ranges of 10mV-1250V, and 0.3 mA to 62.5 A, and upto 78.125 kW, the unit is capable of calibrating up to 0.15 % Class Power meters. New features on the LS3300 include a high definition LCD display, a vector diagram, and the ability to synchronize up to three units to emulate anything from single phase two wire to three phase four wire systems.
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High Impedance Transformers
Osborne high impedance transformers are used to step-up, step-down and isolate voltages in single phase and three phase circuits. A properly designed high impedance transformer can be used an an equivalent to an isolation transformer connected in series with an inductor. The high impedance characteristic may be employed as a current limiting feature in both the primary and secondary circuity.
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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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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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15W to 480W - Single Output
DRB Series
*Single and Three Phase Input Models*High Efficiency, up to 94%*Peak Power Capability Models, 20% for 2sec*Long E-Capacitor Life*Class 2 Models to UL 1310*Class 1 Div 2 for Hazardous Locations
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Voltage Voltmeter
Voltstik
The Voltstik is a distribution voltage voltmeter designed for use on lines and in substations. This meter is employed onto a line by using a hot stick and universal chuck adapter. It is capable of measuring voltage phase to phase, and phase to ground. This high impedance instrument is an excellent choice for solving multiple problems associated with operating a medium voltage system. Its key applications are defined under three groups, safety confirmation of the voltage present, troubleshooting voltage problems, and phasing.
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Display Unit For The Bluetooth Connecting Instrument
MDU-200X
MULTI MEASURING INSTRUMENTS Co., Ltd.
・Can be connected to HCL-36UX/HCL-7000X/ALCL-80X (As of Aug 2, 2022)・Data hold function available・Record function available・Recorded values can be saved in 4 spaces for Three phase 4 line measurement・The measured value can be displayed remotely and separately from the display of the measuring instrument・Easy to read large display
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Three Phase Din Rail Energy Meter Type DTS999D
Bofa Instrument & Equipment Co., Ltd
Three phase DIN Rail energy meter type DTS999Dis a new type of three phase electronic energy meters, which completely accords with international standard IEC61036. It can display energy consumption by stepping-motor counter or LCD. It features good reliability, small volume, light weight and convenient installation.
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90 Degree Hybrid Couplers To 500 MHz
Hybrid couplers with bandwidths as broad as 125:1 are available for applications within 100 kHz to 500 MHz. Power handling is 1 watt maximum for a load VSWR of 1.2:1 or better. These hybrids have an isolation of 20 dB and phase balance of 3 degrees. Most models have a VSWR of 1.4:1 or better throughout their operating bandwidths.Pulsar Microwave currently offers these hybrid couplers packaged in three outlines, including an SMT version. Standard offering of connectorized packages 412 and 442 are...show more -
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Three Phase Relay Testing
Our comprehensive and intuitive relay software speeds up testing times with a vast library of pre-defined test regimes or manual operation.
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Three Phase Portable Energy Meter Test Instrument Type KP-P3003-C
Bofa Instrument & Equipment Co., Ltd
Three-phase portable energy meter test instrument type KP-P3003-C with current and voltage source is an ideal device to test all kind three-phase energy meters accuracy below 0.2. The equipment can generate 3-phase voltage, 3-phase current and any power factor signal, the standard meter inside the equipment is class 0.05. The equipment is box structure, light, and easy to carry, it is very convenience to test meters on site, moreover the equipment can be used for testing meter in meter manufacture and as testing equipment in R&D institute.
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Audio Generator
AG-51
The AG-51 Audio Generator contains a low distortion 20 Hz to 200 kHz sine wave generator, an SMPTE standard intermodulation signal generator and a fixed frequency sine wave generator at 3.15 kHz for wow and flutter tests. Signal outputs are simultaneously available at levels of up to +20 dBm (equivalent sine wave power for complex signals) at separate left (L OUT) and right (R OUT) output connectors. Outputs may be selected for left (L) only, right (R) only, left and right in phase (L+R), and le...show more -
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Portable Three Phase AC Voltage and Current Source
GF303D
Beijing GFUVE Electronics Co.,Ltd.
The GF303D three phase portable power source is a lightweight and portable current and voltage source based on newest technology and serves for solving this problem by simulating the required load conditions. Operation is performed by integrated 7" touch screen or via keyboards
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Power RC Snubbers
Single phase and Three phase availableSuitable for AC and DC voltage applicationResistance and rate power of Resistor : 1 - 50W ( can be customized to 100W or above )Voltage: 63Vac, 125Vac, 280Vac, 480Vac, 500Vac, 600VacOperating temperature : -25~+85C / -40~+105CTesting Voltage : : 1.5 x Un 10sec ( can be customized )Varistor and Diode options available. Different applications can have very different electrical and mechanical profile requirements.Please feel free to send your application details for a suggestion and quotation.
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Three Phase Power Calibrators And Tester Of Power Engineering Devices
C300B
Calmet Smart Calibration Devices
Three phase, class 0.02 and 0.05 power quality calibrator up to 120A (360A) and 560VAC with programmable power quality parameters. It makes possible to make automatic test of electricity meters, measurement transducers, current transformers and protection relays.
