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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
Current Transformers Test Set
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Supreme Instrument Laboratories
The basic unit is sensitive magnetic comparator and also it incorporates electronic null detector to facilitate the balance. The reference Current 5A. or IA. obtained from Standard Current Transformer and in comparison to that the vector length and phase displacement is measured. The ratio error in percentage and phase displacement in minutes are directly compared and indicated on dials.
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Product
Adjustable Isolating Transformers
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PeakTech Prüf- und Messtechnik GmbH
The PeakTech 2235 is a 2 in 1 laboratory isolating transformer with integrated DC power supply, which was designed with the aspect of high safety requirements for use in research, science and repair. The device has a dual adjustable DC, AC output, which can also be used for constant voltage or current and offers high stability and performance. The output voltage or the output current can be read exactly on two separate 3-digit LED displays and the fixed output supplies a voltage of 5 V. The device is protected against damage by overload and short circuit by reliable overvoltage protection and can be placed in a 19 ”rack installed or used as a table device (“stand-alone”).
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Product
Series Precision Multi-Ratio Current Transformers
PMT25090
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Power Measurement Technologies Inc.
Precision two-stage toroidal current transformers find application as the reference in determining the accuracy of instrumentation current transformers.
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Product
Precision Current Transformers
7223CT-2S
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Guildline Instruments NEW 7223CT-2S Series of Precision AC Current Transformers provides very accurate AC current measurements at high current and for high voltages. The 7223CT-2S is part of the 7223CT Series which are Commercially Available High Precision, Low and High Voltage, AC Current Instruments Capable of Measurement Accuracy <5 part-per-million (ppm) – Accuracies No Other Manufacturer Provides!
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Product
Transformers (Murata Power Solutions Products)
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Murata transformers are ideally suited to high-frequency designs. The products come in a variety of industry-standard packages and can be used in applications where impedance matching, voltage conversion, isolation and current sensing may be required.
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Product
RF Transformers
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Pulse continues to lead the way with a broad range of components that enable twisted-pair copper high-speed services to homes and businesses. Pulse components are also used in cable modems and the consumer electronics that provide home networking services. Our high-performance transformers support home phone line and power line networks. These transformers are designed to exceed ANSI and ETSI standards, and have excellent THD performance and small footprints.
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Product
Transformers
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GE Vernova offers a wide range of transformer solutions for the utility, industrial, commercial, residential and energy markets. These solutions feature flexible, reliable and robust designs to support a wide range of applications. With units operating in some of the most demanding electrical environments around the world, We design and delivers transformer solutions that provide among the highest level of performance and reliability to meet rigorous operating requirements.
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Product
Auto Transformers
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Osborne often recommends Auto Transformers in situations where reducing physical size of the transformer is advantageous. Auto transformers offer size advantages when compared to equivalent isolation transformers. Auto transformers provide lower levels of regulation than the equivalent isolation transformer. Osborne helps our clients accommodate for the loss of regulation while achieving the physical size (and cost) advantages of auto transformers.
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Product
Automatic Battery
BATLV1600
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Lifasa - International Capacitors, SA
LIFASA automatic capacitor banks are used for centralized compensation of power factor in low voltage instalations. These equipments are supplied completely assembled and ready for use: it is only necessary to connect it to the mains with cablesof adequate cross section, and to supply the operation signal from suitable current transformer. FML capacitors and swichgear inside metal cabinet. Floor mounting.
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Product
Current Transformer
ST-40CT
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Standard Electric Works Co., Ltd
● 200/5A - 400/5A● 3-5V A● Class 1● Insulation 600V
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Product
AC / DC Combined High Voltage Test Set
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Cambridge Instruments & Engineering Co.
suitable to perform AC High Voltage Power Frequency test on transformers, motors, cables etc. Leakage current can be measured at desired pressure and this set can be used as a source for cable fault burning.
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Product
Flash Point Tester
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Weshine Electric Manufacturing Co., Ltd
Closed flash point tester, when the test sample is used in a closed environment (such as transformer oil), to determine the closed flash point value of petroleum products. Use touch screen instead of keyboard operation, adopt foreign advanced technology, large LCD screen LCD full Chinese display man-machine dialogue interface, full screen touch key prompt input, convenient and fast, open, fuzzy control integrated software, modular structure, in line with national standards, the United States, EU and other standards.
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Product
Instrument Transformers Tester
TE30
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Calmet Smart Calibration Devices
Electricity meters tester class 0.05 and 0.1. Three phase tester of current transformers and analyser of power network quality. It makes possible electricity meters testing on the site or in the laboratory.
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Product
ANSI Relaying Current Transformer Burden
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The ANSI Current transformer burden is designed for loading the current transformer during accuracy Tests. The ANSI burden is designed as per ANSI burden C57.13.It can be used along with the Eltel Automatic Instrument Transformer Test Set to test CTs as per ANSI Standards.
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Product
Chek-Mate
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Allanson’s Chek-Mate allows you to instantly test double pole electric ignitors and iron core transformers from various manufacturers in a fast and dependable way.
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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.
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Product
Transformer Test Equipment
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DV Power test instruments perform various diagnostic tests on power and instrument transformers. Even more, a unique feature is a condition assessment of on-load tap changers. Performing a transformer test before their breakage can be crucial.Test instruments are portable and enclosed in durable metal cases. Also, the 19” rack-mounted version suitable for factories is available as well.Applications supported by DV Power transformer test equipment include:Winding resistance measurement (IEC 60076-1)Analysis of on-load tap changers (IEC 60214-1)Heat run test (IEC 60076-2)Automatic transformer demagnetizationTurns ratio measurement of power and instrument transformers (IEC 60076-1)Excitation current measurementPhase angle measurementTransformer vector group detectionDemagnetization status verificationAll of the above-mentioned measurements are performed with the highest accuracy.The advanced DV-Win PC software collects both numerical and graphical results. As a result of that, these features provide an easier and more efficient analysis. After the test, DV-Win software generates a test report with a single click. Furthermore, a user can easily customize the test report and save it in different formats, such as XLS or PDF.Finally, the analysis of on-load tap changers is performed by the new method called dynamic resistance measurement (DRM). This is a non-intrusive method. Therefore, it allows detecting problems in on-load tap changers without disassembling them.
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Product
5 A portable digital micro-ohmmeter
MPK-254
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The MPK-254 digital very low resistance ohmmeter is a portable, microprocessor-controlled instrument used to accurately measure resistances of switches and circuit breaker contacts, transformer and motor windings, wire and cable samples, joints in busbars, etc., using test currents from 1 mA up to 5 A.
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Product
Transformer Winding Resistance Meters
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Vanguard Instruments Company, Inc.
The TRM-40 is Vanguard Instruments’ third generation transformer winding resistance meter. The TRM-40 is designed specifically to measure DC resistance values of transformer windings, rotating machine windings, or any dc resistance of an inductive device.
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Product
Transformer Turns Ratio Tester
CX-BY
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Shenzhen Chuangxin Instruments Co., Ltd.
It is to test voltage ratio, vector, polarity, ratio error of current transformer and voltage transformer.
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Product
STDETransformer Demagnetizer
STDE
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This option allows neutralizing the residual magnetization of the power transformer core after the winding resistance test. The principle of the option is to apply a constant current of alternate polarities to the transformer winding, as per the IEEE 0062 1995 standard.
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Product
Injection Transformer
J2101A
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The injection transformer is presently the prevalent method for connecting the network analyzer to the circuit being tested, and is primarily used for control loop stability measurements. The goal of the transformer is to inject a signal into the control loop being measured, without impacting the performance of the loop. In order to accomplish this to a reasonable degree, The transformer is isolated and therefore is capable of floating on a high voltage, such as a Power Factor Corrector (PFC), which is often close to 400VDC. Measuring voltages that exceed the voltage rating of the FRA inputs require attenuation probes.
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Product
AC Current Transducer
iDVM 333
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The iDVM 333 AC Current Transducer plugs into the iDVM 510 multimeter and measures current (as AC millivolts) with no need to break the circuit. Special Introductory Price: $52.50FeaturesTransformer jaws that detect AC current flowing through a conductorSelectable sensitivity between 1mV/A and 10mV/AHand Guard to protect your hand for safetyLarge, easy-to-operate trigger opens the transformer jaws
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Product
Server Products
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Driving Data Center Transformation Through Innovation. Trust, reliability, proven performance. There are reasons Intel is a global leader and preferred provider of server technology and products. Intel understands the needs of the modern data center and harnesses its years of experience and design expertise to deliver a broad portfolio of innovative server products, systems, and solutions to help businesses grow and be competitive in the market.
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Product
Combined Transformer
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Combined Transformer is a great solution for projects with dimension restrictions. Because we focus on quality and reliability of our products our combined transformers also require minimum maintenance once installed.
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Product
Plug-in Test Systems
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FAME is the innovative, modular plug-in test system for measuring and testing tasks in protection technology for medium-voltage and high-voltage switchgear. The plug-in test system combines complex switching operations for testing the function of current transformers and voltage transducers, as well as tripping and signal contacts.
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Product
Program Development for Multisite Test
IG-XL
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Teradyne’s award winning IG-XL software transforms test program development for the FLEX, UltraFLEX and J750 family of testers. Its powerful, yet easy-to-use, graphical environment lets engineers rapidly develop fully functional test programs, cutting program development and debugging time. Designed to address multisite complexity, IG-XL can convert single site test programs to multisite automatically, speeding time to market and reducing cost of test. With IG-XL, test engineers focus on actual testing, not writing code for the tester.
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Product
Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
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TWA Advanced series is the latest DV Power solution for three-phase transformer winding resistance measurement and tap changer analysis. They are capable of testing six transformer windings with a single cable connection, as well as three-phase automatic transformer demagnetization. It has the option of the automated test mode, where the instrument operates the tap changer without operator input (minimizing the risk of human error) and records winding resistance results based on pre-selected stabilization criteria.The unique DVtest method of tap changer analysis 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, together with the measurement of tap changer motor current which detects 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 simultaneously on three phases. It can also be performed together with the winding resistance test in all tap positions.A unique advantage of TWA Advanced instruments 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 speed up the testing– for example, it enables the operator to perform 33 measurements instead of 99 on a tap changer with 33 tap positions.TWA500 is equipped with a large 10.1” graphical touch-screen display, while TWA400 has a 7” graphical touch-screen display. Besides making the interface much more user-friendly compared to older winding ohmmeters, it also enables certain test options that were previously available only with DV-Win software. The most important among them are DVtest, tap changer motor current measurement, “Heat Run” test, test templates, and automatic test mode.
