Single Phase
A single alternating voltage.
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Product
Single-Phase Transformer Winding Resistance Meters
RMO-TT Series
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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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Product
Xytronic Single-Phase Reference Standard +/- 0.04%, +/- 0.02%, +/- 0.01%
RADIAN RX-20, RX-21 and RX-23
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Radian Research is committed to providing our customers with leading innovative and technologically superior products, while maintaining metrology capability in power and energy measurement that is surpassed by none. Our engineers drew on the expertise and knowledge we acquired for our industry-leading legacy RM (Metronic) and RD (Dytronic) reference standards to develop the RX (Xytronic), the ultimate in power and energy measurement technology perfection.
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Product
RC-50 Artificial Phantom Load with Power Factor
480
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The RC-50 Artificial Phantom Load with Power Factor (Catalog No. 480) has been re-designed to meet the most exacting requirements. It operates from a single phase source and will deliver current at either unity or 50% power factor at all full load ranges.
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Product
Variable Frequency Drives (VFD)
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High performance, cost effective VFDs, ideal for both machines & process control.Unitronics VFDs offer options for both single and three phase VFDs from 0.4 kW and up to 500 kW.Unitronics VFDs can be used as a stand-alone product, or as part of a complete All-in-One package with our controllers.
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Product
Metra Power Clamp
400A
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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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Product
Transformers
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Chengdu Mengsheng Electronics Co., Ltd.
As a leading transformer manufacturer, DOREXS is committed to providing a variety of high-performance standard and customized transformers to meet the power needs of various industries.DOREXS has a professional R&D design team and advanced production technology to ensure that our transformers are at the forefront of the industry. At the same time, they are strictly produced in accordance with international standards to ensure that the performance and stability of each transformer are maximized.Our products cover dry type transformers, single phase transformers, three phase transformers, high frequency transformers, toroidal transformers, R core transformers, EI core transformers, isolation transformers and special transformers.If you need to know more about our products and services, please feel free to contact us.
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Product
Digital Meters
FU8000
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Beijing GFUVE Electronics Co.,Ltd.
Single phase display meterIt has programmable functionDC4-20mA analog outputHigh accuracy, excellent communication interface port
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Product
Primary Current Injection Test Sets
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Our primary current injection test sets cover from 750A through to 6000A. Available in single phase, testing applications include testing and timing of under and over current relays, circuit breakers and CT ratio testing.
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Product
One Phase Electric Power/Energy Calibrator
MC133
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The MC133 master unit model is a one phase electric power/energy calibrator. It can supply the device under test with single phase precise voltage and current with calibrated phase shift along with DC voltage and current capability. Output voltage can be set in five ranges up to 280V and output current in six ranges up to 30A. Simulated electric power can be set independently for each phase. Frequency can be set from 15Hz to 1 kHz with resolution 0.001Hz to 0.01Hz. The MC133 Calibrator is equipped with 5 1/2 digital DC meter with DC ranges 20mA or 10V for direct calibration of various types of power transducers and wattmeters.
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Product
Single Phase Socket Tester
K-280
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TESCO Knopp’s K-280 Single Phase Socket Tester is designed to detect short circuits, backfeed and wiring errors in a 120/240 volt, 3-wire, single phase self-contained meter socket.
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Product
Single-phase Electricity Meters
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Single-phase static electricity meters AMS B1x-SAx are determined for direct and indirect measurement of active energy displaying value on mechanical register with stepping motor. In the case of CT (current transformer) operated meters (x/5A) it is necessary value of register to multiply by the current transformer ratio.
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Product
Branch Circuit Monitor
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Multiple branches of load can be monitored togetherCan group the device as 3 phase load and single phase loadFaster communication through RS485 port (Modbus protocol)Simultaneous sampling of Volts and AmpsAccuracy Class 1.0 as per IEC 62053-21 & Class 0.5 as per IEC 62053-22 StandardsDisplays more than 25 parameters
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Product
Single Phase Converter
Series Sirio AC / ACS
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The SIRIO single-phase equaliser is an electronic device that offers the ability to regulate the rms value of a sinusoidal voltage through the control of two diodes connected in antiparallel.
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Product
Portable Single-Phase Energy Standard
PEWM-3C-1
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The single-phase energy standard PEWM-3C-1-1 is used for a quick check on site of all types single-phase electricity meters – for active, reactive or apparent energy, electromechanical and electronic. The voltage and the current are measured at the same time. The current can be measured directly within 10A or 100A range or with current clamp to 100A. The current clamp is electronically compensated.
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Product
AC Source
AMF
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The Intepro AMF Series is a complete line of single and three phase, 400Hz AC Frequency Converter products. With Power levels ranging from 6kVA up to 300kVA, the AMF series of frequency converter products are the ideal and cost effective solutions for precise frequency conversion in all avionics and higher frequency electronic applications. Power and frequency conversion is supplied by state-of-the-art IGBT pulse-width-modulated power amplifiers resulting in highly efficient power conversion, compact design and maximized performance with minimum downtime.
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Product
Single-Phase Static Switches
ISSF COMPACT
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ISSF 'COMPACT' series circuit breakers are electrical devices used to interrupt or connect the flow of current in an electrical circuit. They are designed to provide high reliability and protection in a compact size. They overcome the limitations of electromechanical switches in many difficult and demanding applications, such as the control of high-power motors, transformers, tungsten lamps, heating elements, and electric ovens.
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Product
Transformer Turns Ratio Tester
CXBC-901
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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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Product
Single Phase And Three Phase High Voltage Test Bench Type KP-V3000-A
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Bofa Instrument & Equipment Co., Ltd
Electricity meter high voltage test bench KP-V3000-A is a new generation of high voltage testing equipment based on the latest international standards, which adopt special current transformer and high voltage relay to ensure high accuracy and safety.
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Product
28 Days Test Bench (Single Phase & Three Phase)
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The SCR Elektroniks 3 station MCB 28 Days and Temperature Rise Test Bench is economically designed to verify the 28 Days Test (21 hr ON, 3 hr OFF Test) as per clause 9.9 of IEC 60898-1 and Temperature Rise of the parts of a Circuit Breaker specified in Table 6 of clause 8.4.1 measured under the conditions specified in clause 9.8.2 of IEC 60898-1.
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Product
Low Voltage Single Phase
600V Class
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These transformers are encased in a thermoplastic case with the core and windings encapsulated in resin. They are designed for line-to-line operation but may also be used in line-to-neutral or line-to-ground configuration at 58% of rated voltage. It is recommended that a 1.6 Amp fuse be used in the secondary to protect the transformer.
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Product
SCR Controller with Regulator
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The SCR Controller and the Regulator Board are used in SCR controlled power supplies.CEHCO offers single phase and three phase SCR Controllers with Regulator Boards.
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Product
DC POWER
VARIABLE TRANSFORMER
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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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Product
Multifunctional Meter
CPM-20
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CPM-20 multifunction power meter provide high accuracy single phase and three-phase measuring and displaying, energy accumulating, power quality analysis, and data communication.It provides maximum/minimum records for power usage and power demand parameters.Hardware standard built in a RS485 Modbus communication port.FCC and CE Approved
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Product
Calibration Pulse Processor
2401
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TESCO’s Calibration Pulse Processor (Catalog No. 2401) adapts to any Next Generation three phase test board to directly calibrate with three independent single phase standards.
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Product
Advanced Line Protection System
ALPS
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ALPS is a multi-function digital protective relay system intended toprovide distance protection for HV or EHV transmission lines. It maybe applied on or adjacent to series compensated lines. It is availablefor single or three phase tripping applications. Typical operatingtimes are to 1 cycle.
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Product
Digital Line Protection System
DLPD
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The DLPD provides distance protection for HV and EHV transmission lines. It may be used for single or three phase tripping applications. It includes four zones of distanceprotection. User selectable pilot schemes are provided with stepdistance backup. Ground instantaneous and time overcurrentfunctions are independently selectable to be directional ornon-directional.
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Product
High Impedance Transformers
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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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Product
Artificial Phantom Load with Power Factor
RC-50
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The RC-50 Artificial Phantom Load has been re-designed to meet the most exacting requirements. It operates from a single phase source and will deliver current at either unity or 50% power factor at all full load ranges. Features: Artificial Load, Light Weight, 50 Amps, 50% Power Factor.
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Product
Single Phase Site Energy Meter Test Instrument Type KP-P1001-A
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Bofa Instrument & Equipment Co., Ltd
Single phase site energy meter test instrument type KP-P1001-A (without voltage and current source) is an ideal instrument to test all kind single phase energy meters accuracy below 1.0, especially for meters on site. During tests, the tested meter must be on load condition (that means the tested meter must be working). The instrument tests the errors by comparing energy impulse from the tested meter with energy impulse from the reference meter inside the instrument.
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Product
Transformer Turns Ratio Meters
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Vanguard Instruments Company, Inc.
The ATRT-01 S3 is Vanguard’s fourth generation, micro-processor based, single phase, automatic transformer turns-ratio tester. The ATRT-01 S3 uses the IEEE C57.12.90 measuring method to determine the transformer turns-ratio. The transformer turns-ratio is determined by precisely measuring the voltages across the unloaded transformer windings. The ATRT-01 S3’s measuring circuitry self adjusts before each measurement to ensure turns-ratio accuracy. Two selectable test voltages, 4Vac and 40Vac, offer flexibility in testing different types of transformers.
