Transformer Turns Ratio
measures a transformer's number of primary winding turns to it's secondary turns.
See Also: Winding, Transformer Turns Ratio Testers
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AC Test Transformer Products
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Shanghai Guantu Technology Co., Ltd.
Manufacturing scope:Output voltage: 0~200kVOutput capacity: 0~20kVATechnical features of AC test transformer:Light weight; adopting oil-filled and air-filled structures reduces weight by 20% year-on-yearStatic noise; uniform electric field design and special fastening structure, no discharge and no mechanical noise at rated outputHorizontal iron core structure reduces the center of gravity of the equipment to a low pointMulti-flange combination with high structural strengthKey parts are cushioned with advanced elastic materialThe control box has complete protection functions and strong overload capacity
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Flow Ratio Controllers
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Optimizing process performance just became easier with the DELTA™ Flow Ratio Controller (FRC). Widely used in a variety of flow splitting applications such as etching, stripping, and PECVD, the DELTA™ Flow Ratio Controller (FRC) provides users with the ability to distribute gas or gas mixtures to different zones in a process chamber.
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Series Precision Fixed-Ratio Current Transformers
PMT25100
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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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Automatic Current Transformer Comparator
KATC-C2
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Got older, slower equipment? Knopp’s Automatic Current Transformer Comparator (KATC-C2) is faster, more robust and more accurate! Knopp’s KATC-C2 is a high accuracy current comparator that is compatible with all older generation Knopp comparators, and is designed to be a direct, plug-in replacement requiring no modification of the existing Knopp Current Transformer Test Systems. Save time and money on service by upgrading your comparator to our new next generation model!
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Test Sets For Transformer Industries
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Contemporary Test Sets For Transformer Industries are developed to recognize the potentially disastrous current transformer errors. They prevent the primary current from overpowering insulation and short circuits. They are used for developing a testing and maintenance plan for addressing the errors before any failure to save money and time. With these powerful test sets, they are sure to perform saturation testing to test the knee point of a signal by comparing primary and secondary windings.
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Current Transformer
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Nippen Electrical Instruments Co.
DIGITAL METERS NIPPEN electronic energy meters are panel mounting type innovative energy monitoring devices ,having state of the art electronic microcontroller circuitry for reliability and accuracy. They can be used for 1Ø / 3Ø balanced and unbalanced loads.
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Fourier Transform Infrared Spectrophotometer
IRSpirit
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Despite their small footprint, smaller than an A3 size sheet of paper (297 x 420 mm), these models have been engineered with a wide sample compartment that accommodates existing accessories from Shimadzu and other manufacturers. This capability makes them the smallest (installation footprint) and lightest FTIR spectrophotometers in the world that can be used with optional products from other manufacturers. They also include a program, IR Pilot, with 23 application-specific workflows that can be utilized without involving any complicated parameter setup process. Customers can select from either the IRSpirit-T model, which offers sensitivity equivalent to standard Shimadzu models, or the reasonably priced IRSpirit-L model.
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Toroid Core Coil Turns Testers
SS107A
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The magnetic torrid ring core winding coil turns tester (SS107A) adopts the high speed center microprocessing unit circuits and precise measurement A/D circuits. This coil turns tester is used to count the coil turns of various torrid core winding coils. Like as: torrid core inductors, torrid core transformers, torrid core sensors, wate meter sensors, torrid current transformers, torrid core choke coils, etc. The tone tester is named magnetic ring core coil turn tester also.
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Three-Phase Transformer Demagnetizer
DEM60C
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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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WINDING COIL TURNS TESTER
VE201R
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Winding Turns Tester for Counting Measuring Number of Turns for Air Core Coils, Bobbin Coils or Solenoid Coils. Can Measure : Turns along with Winding Polarity and DC Resistance.Turns Measurement : 1 Turns to 80,000 Turns
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Automatic Three Phase Transformer Ratio Meter
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*For automatic measurement of ratio & phase angle deviation. *Digital presentation of ratio & phase angle deviation. *Ratio range of 0.2 to 199.99 to 1 in three ranges. *Automatic polarity indication. *High accuracy and resolution Accessories: Range Extender 1:10
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Isolation Transformers
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Osborne’s Isolation Transformers are used to step-up, step-down and isolate voltages in single phase circuits. Isolation may be used to provide output circuit immunity from voltage spikes and noise (both common-mode and transverse-mode) present on the input system. The isolation can allow separate grounds on both the input and output sides of the transformer. Osborne also designs with a range of electrostatic shielding to provide several levels of noise immunity.
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Transformer Oil Acidity Testing Kit
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NMC Brand Transformer Oil Acidity Testing Kit used to measure the Acidic content of Transformer Oil
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Incremental Transformer Solutions
TRANSPORT X
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The Kelman TRANSPORT X is a compact portable Dissolved Gas Analysis (DGA) system which can be used to analyze oil samples for all dissolved fault gases and moisture. If abnormal levels are detected, it further provides a diagnostic using various IEEE/IEC approved interpretation rules.
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Split Core Current Transformers
LZCK-55
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Beijing GFUVE Electronics Co.,Ltd.
Outdoor waterproof current transformers are applicable for AC power system 35kV and measurement of current of power supply equipment below 10KV also can be used for microcomputer protection. This type of current transformer employs imported silicon steel which with high permeability as magnetic material, has the characteristics of Small magnetic circuit loss and can be split, its semicircular core and secondary windings employ high quality epoxy resin vacuum, casting in plastic-case(ABS or PC) which is flame retardance anti-moisture, stable performance, no maintenance.
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Transformer & Capacitor Testers
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*Quick and easy check for opens or shorts on transformers before energizing*Provides clear indications of open circuits, short connections and confirmation that the test results are OK*Tests overhead, pad-mount and other distribution transformers*Tests the primary and secondary sides of de‑energized transformers without disconnecting*Helps prevent line workers from installing a fuse on a shorted transformer*Automatic self-test feature*Magnet holds the tester in place while testing
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Split type AC Current Transformer
CTF-400T
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MULTI MEASURING INSTRUMENTS Co., Ltd.
*1A output for metering application.*Wire stopper is equipped for the slipping protection.*The special connector is not necessary as the output terminals are provided.*Open circuit protection and nonflammable plastic material.
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Single-Phase Transformer Winding Resistance Meters
RMO-TD Series
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Using the most advanced switch-mode technology available today, the RMO-TD series is ideal for winding resistance measurements of inductive objects. Transformer resistance meters and tap changer analyzers are perfect for testing:transformer windings (power transformers, distribution, autotransformers),all types of tap changers,generators,electrical motors,high-current busbar joints,cable splices,and welding joints.In addition, transformer demagnetization can also be done with all RMO-TD instruments.The RMO-TD series contains 3 models, with maximal test currents from 25 A (RMO25TD) to 60 A (RMO60TD).The three independent voltage sense channels enable testing of three windings in series. This enables measurements of winding resistance in every tap position of an on-load tap changer without discharging between the tests.All RMO-TD transformer resistance meters have a built-in tap changer control unit. It enables remote control of on-load tap changer (OLTC) directly from the device. In order to make the most out of this feature, DV-Win software is included which can be programmed 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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PD Free Test Transformer
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Wuhan Fanke Transformer Manufacture Co., LTD
PD Free Test Transformer
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Shorted Turns Tester for Bobbin Wound Coils
Model STT-4
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International Electro-Magnetics, Inc.
The STT-4 Shorted Turns Tester offers a quick and easy means to detect shorted turns in bobbin coils. It is a non-stress and non-contact test.
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High Frequency Transformers
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Osborne High Frequency Current Transformers operate at frequencies higher than 50/60 Hertz. Their purpose is to reduce high frequency system currents to lower values that are appropriate for instrumentation and/or protection circuits. They have been designed to meet specified current ratios, and burden impedance at a specified transformation error. One area of unique Osborne expertise is in designing for phase shift when high frequency current transformers are to be used for power measuring applications.
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Portable Three Phase Transformer
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Supreme Instrument Laboratories
Portable 3 phase double wound transformers both step-up & step-down, natural air cooled construction, housed in well ventilated sheet steel cabinet duly powder coated. All the input and output terminals are brought out and terminated on highly insulated bakelite panels duly marked for easy connection. Necessary carrying handles and castor wheel will be provided for portability.
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Automatic Transformer Observation System
ATOS
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Raytech – The World leader in design and manufacturing of high-quality precision measuring instruments and systems, offering flexibility and versatility. Our modular Automatic Transformer Observation System (ATOS) allow you to create a unique and custom solution for any application. ATOS is designed to drastically reduce measuring time and increase test performance, without losing accuracy compared to individual test instruments. With the choice of up to three Multiplexers (primary, secondary, and tertiary), three Winding Resistance Meters, each with three maximum current range options (up to 15A, 50A, or 100A), Turns Ratio, and Integrated power security and safety panel (ISU R), Raytech can create a system with your needs and budget in mind.
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Bit Error Ratio Tester
BEC12
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*Low cost continuous 1G to 12Gb/s Bit Error Ratio Tester and Eue Checker*Extinction Ratio (ER) measurement with optional OE convertor.
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AC/DC Clamp-On Current Transformers
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AC/DC Clamp-On Current Transformers by AYA Instruments
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Hand Held Microwave Moisture MeterFor Water/Cement Ratios of Fresh Concrete
Cementometer
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The James Cementometer represents a break-through in modern moisture measurement technology. By utilizing the latest microwave and microprocessor science, the Cementometer can determine the moisture content of freshly mixed cement, concrete, and mortar. Simply insert the prongs of the probe into the material to be measured and instantaneously the water cement ratio is shown on the easy to read display.
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Automatic Voltage Transformer Comparator
KATC-V2
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Knopp’s KATC-V2 is a highly accurate state-of-the-art voltage transformer comparator that is compatible with all older generation Knopp comparators, and is designed to be a direct, plug-in replacement with additional test set cables to fit in the existing Knopp Voltage Transformer Test Systems.
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BDV Transformer Oil Test Sets
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NMC''s Transformer BDV Oil Test Set is a portable unit as per relevant Indian Standard Specification IS :6792 :1992, suitable for operation on 230 / 240 Volts, A.C. 50 Hz. A three core flexible cable is connected to the unit with three pin socket to connect the mains. The H.V. Transformer is a completely dry, resin encapsulated with two H.V. terminals with mounting saddles. The center point of the transformer is earthed, so that the voltage of each terminal to earth is only half the test voltage.
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Digital Transformer BDV Oil Test Set
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We are engaged in manufacturing, supplying and trading an exhaustive range of High Voltage Oil Test Set, which is developed under the constant supervision of our team of experts. This equipment is acknowledged for its optimality in performance and quality.
