Single Phase
A single alternating voltage.
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Product
3-Phase Ratiometer
PWR1-3B
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The RATIOMETER PWR1-3B is constructed to measure the transformation ratio, phase error and magnetizing current of power- and distribution- transformers for all three-phases simultaneously. Voltage and current transformers are single phase, power transformers normally three-phase. Due to the bad quality on industrial lines (phase jitter and shifting, voltage differences between the three phases) all measurements normally are done single phase, even on three phase ratiometers.
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Product
Transformer Testing
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The ART-3D series of Automatic Ratio Testers are precision instruments, designed to measure the turn ratios, phase displacements, excitation currents of single phase and three phase power, distribution and instrument transformers in conformity to the IEEE C57.12.90 & IEC 60076. Now featuring an enhanced test lead design, the ART-3D is the perfect instrument for real-life field usage. ART-3D series also has Anti Induction circuit which makes it suitable for system voltages upto 765KV.
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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
Portable Electrical Measuring Instruments in ABS Body
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Supreme Instrument Laboratories
General Specification for Portable Ammeters, Voltmeters, Milliammeters, millivoltmeters, Micro Ammeters, Single phase Wattmeters, power Factor Meters, Dynamometer type Voltmeters, Ammeters etc. Housed in superior grade of ABS body, unique design, very strong in construction, unbreakable and very high insulation.
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Product
Portable Single Phase Power Factor Meter
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Supreme Instrument Laboratories
Portable Electro-dynamometer type single phase single element Power Factor Meter laboratory type for horizontal use, housed in laminated wooden cabinet size 235 mm length x 200 mm width x 180 mm height, with detachable lid, black bakelite panel fitted with anti-parallax mirror scale, knife edge pointer, rubber footings, carrying handles, locking arrangements. The power Factor Meters are fitted with an iron shielded Electro-dynamometer type cross coil system.
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Product
AC/DC Single Phase Digital Power Meter 100 kHz
T3PM1100
Power Meter
AC/DC Single Phase Digital Power Meter 100 kHz.
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Product
Three-Phase Relay Tester
PTE-50-CET
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The equipment comprises of three independent output channels that can be selected as current or voltage. This enables the unit to be used as a complete single-phase equipment (voltage, current, and phase angle between them) or, with channels synchronised, as a three phase current or three phase voltage generator from a single phase mains input.
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Product
Single Phase Multi-rate Static kWh Meter
SY 1035
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Hong Kong Songyang Industrial Ltd.
Adopt ADE7755 measurement chip. High accuracy class. Large overload times. Can sum up the absolute value of positive and negative energy. Record power energy of this month, last month, and the month before last.
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Product
Single Phase Relay Testing
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Megger’s single phase relay test sets are essential items in the relay engineer’s toolbox. Lightweight, rugged with high compliance voltage and test current. Ideal for testing distribution networks, industrial relays, distance relays in rail power networks and many other applications.
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Product
Servo Stabilizers
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We are a leading Manufacturer of Single Phase Servo Voltage Stabilizer, 3 Phase Air Cooled Voltage Servo Stabilizer and Oil Cooled Servo Stabilizer from Vadodara, India.
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Product
Universal Clamp Tester
M-200
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*The unique U type CT enabled to measure the load current of single or three phase cable without separating the cable to the wires.*33mmφCT window and ultra compact size.*Data-hold function. Especially useful when working in dark or hard to get areas.
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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
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.
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Product
Test Set With Control Unit
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Supreme Instrument Laboratories
Single Phase A.C. High Voltage Test set (BDV Flash Test) suitable for operation on 230 Volts, A.C. 50 Hz., designed for carrying out dielectric test on transformers, electrical switchgears, and installations. It operates on single phase A.C. and provides an output voltage zero to maximum rated voltage.
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Product
Multifunction Power Meter (DIN rail)
CPM-12D
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CPM-12D is a din rail mounting multifunction power meter with high accuracy measurement for single phase and three-phase system.Measuring all basic parameters ; V, I, P, Q, kWh, kVarh etc..
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Product
Single Phase Meter Test Bench
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Supreme Instrument Laboratories
Single phase meter test bench suitable for calibration & testing of AC Ammeters, AC Volt Meters, AC Single phase Energy Meters, Power Factor Meters & Watt Meters. Other Technical Specifications are as under
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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
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
AC/DC Power Clamp Tester
IBL-307
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International Biological Laboratories
This Digital Clamp On Power Meter Model 307 can be used to measure True Power, Apparent Power and Power Factor in single phase circuits. It measures AC/DC Current and incorporates a frequency counter. It is autoranging type Digtal Clamp On Power Meter and has 3-3/4 Digits 4000 Counts with 40 segment analog bargraph LCD Display.
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Product
Ungrouped
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Weshine Electric Manufacturing Co., Ltd
The instrument can measure single capacitor of single phase or three-phase shunt capacitor bank without removing wires.2. The instrument has the functions of inductance, resistance and current measurement.3. The instrument has two power supply modes: External AC220 V and built-in lithium battery meet various application scenarios.
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Product
Three-Phase compact Electric Power/Energy
MC133C
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The Model MC133C is a compact single housed three phase electric power/energy calibrator. It can supply the device under test with precision one phase AC voltage and current with calibrated phase shift along with DC voltage and current. Output voltage can be set in five ranges up to 280V and output current in six ranges up to 30A.
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Product
Electricity Metering Device- Residential
ES-10B
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Designed for the residential smart meter rollout in Great Britain, this 4 terminal single phase electricity meter is the second generation version within our SMETS2 compliant solution.Taking learnings from the first generation meter, the ES-10B is a more refined SMETS2 compliant electricity meter with 100A main disconnect relay, dedicated secure microcontroller and with multiple interfaces including Zigbee and DLMS.
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Product
Single Phase Din Rail Multi-Tariff Energy Meter Type DDS999D
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Bofa Instrument & Equipment Co., Ltd
Single phase Din rail multi-tariff energy meter type DDSF999D is a new type of single phase electronic multi-rate energy meter, which accords international standard IEC61036. It features: good reliability, small volume, light weight, convenient installation, etc.
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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
Meter Test System
MTS-50
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Kongter Test & Measurement Co., Limited
This meter test equipment features state-of-art designing with high accuracy. It is composed of high accurate (class 0.05% or 0.1%) standard reference meter and power source (up to 50A). This system is particularly designed with modular structure for calibration and test of different single phase/3 phase electronic/inductive active and reactive energy meters.
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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
SIRIO
4AAX4A
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Sirio is a low-cost multi-function meter in a 4 DIN module, ideal for measurement and display of the most important electrical parameters.Sirio can be installed in single phase and three-phase unbalanced systems in a triangle or in a star layout with sturdy 4 mm2 terminals for measuring the current and voltage.It monts an 8 digits LCD display. It displays 7 major measures (True RMS) and more than 40 RMS are available on the integrated RS485 serial port.Siri0 include two relay outputs, user-configurable for alarms, pulse or remote control.All parameters are configurable from instrument keyboard already installed.
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Product
Voltage Dip, Interruption& Variation Simulators
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Suzhou 3ctest Electronic Co.,Ltd.
PFS single phase power fail simulator simulates voltage dip, interruption and variation which are caused by power grid and transformer devices due to malfunction or sudden large change of load. It is required to test this kind of phenomena to check whether electronic and electrical device can sustain safety operating condition.
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Product
Surface Mount Meters
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National Meter Industries Inc.
Surface Mounted Single Phase Kilowatt Hour Meter.
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Product
Transformer Short Circuit Impedance Tester
JYW6300
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This instrument is mainly applicable to low voltage load impedance test of 35kV and above power main transformers (single phase or three phases) in ex-works routine tests, overhaul tests, pre-tests, and acceptance tests.




























