Current and Potential Transformers
current and potential transformer T&M instruments.
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Product
Current Transformers & Bushings
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Measurements International Ltd.
AC Current Transformer, Reference Standard for the Calibration of Precision CTs, Currents as high as 10,000 A, Portable with carrying handle for smaller CTs, Wheels on heavier CTs, Passive or Electronically Aided Compensation.
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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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Current Transformers
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A range of ring type current transformers suitable for primary currents from 1A-5000A with 1A or 5A secondaries. This standard range of measuring and protective current transformers is available as resin coated or tape wrapped.
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Transformer Testing
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Haomai Electric Power Automation Co.,Ltd.
1)Test Standard:IEC60076 & IEEE C57.12.90 2)Voltage ratio measurement of transformer 3)Turns ratio measurement of transformer 4)Group vector measurement of transformer
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Product
Current
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ACI’s comprehensive current sensor line includes transmitters, switches, and relays—and the technical support to solve the most challenging applications
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Product
Instrumentation Transformers
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RR manufactures Transformer for Oil Test Set / Oil BDV Set. These are available in→ 25-0-25 KV→ 30-0-30 KV→ 40-0-40 KV→ 50-0-50 KV→ 60-0-60KV→ Higher ranges availableThese transformers are available in various models to suit various needs and budgets. We Specialize in manufacturing LOW WEIGHT TRANSFORMERS for AUTOMATIC OIL TEST SET MICROPROCESORS.
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Transformer Test Equipment
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A range of equipment dedicated to the testing of transformers of all types and sizes.
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Step Up Transformer
MagD
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SCOPE proudly introduces Step-Up Transformer - MagD, specially designed to cater the needs of testing of instrument Transformers. Before new systems are put into service or after any occurrence of fault, the instrument transformers need to be tested for their outputs. It is to be ensured that these instrument transformers are giving proper outputs to the protective relays. MagD is used to plot excitation curves for instrument transformers. Inbuilt voltmeter and ammeter, eliminates the need of external meters for plotting of curves. It can also be used for de-magnetization of transformer cores and also turns-ratio tests can be conducted using MagD.
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Product
Transformer Resistance Testing
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Weshine Electric Manufacturing Co., Ltd
Transformer insulation resistance deterioration is one of the most common causes of transformer failure: a failing transformer is a costly replacement in an electrical system with the potential for a long downtime. If you fail to maintain your transformer with regular insulation resistance testing (as can be carried out by the WESHINE Transformer Ohmmeter (VS-3110 series) of transformer test equipment) then it’s likely to fail before reaching its maximum operating life.
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Product
Transformer Testing Panel
VTTP
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Capable to Test Up to 25 MVA (Other Ranges are Available On Request). Useful for No Load Test (O.C.), Load Test (S.C.), DVDF Test HV Test of Transformer. Mains indication by R,Y,B indication Lamp. Over voltage, over current protection.
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Product
400/5A CHEAP SPLIT CORE CAST RESIN CURRENT TRANSFORMER
LZCK310-10
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Beijing GFUVE Electronics Co.,Ltd.
LZCK series 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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Product
Current Injection
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K&S Engineering and Scientific Ltd
The outputs are continuously variable from zero and are all isolated. The current outputs can be used at twice their continuous rated current on a 25% duty cycle with a maximum ON time of 5 minutes.
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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
Current Detectors
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On our website you will find current detectors that are ideal for measuring AC or DC voltage. Current detectors are irreplaceable for inspection work and maintenance. We offer the following: voltage detectors, voltage leak detectors, voltage power detectors, Current clamps ideal for measuring AC or DC voltage. metric detectors, current detectors and more. These high quality current detectors include the capacity to measure many other parameters, such as capacity, resistance, power (both by way of clamps or by means of a hand held digital device with external clamps with a range of one or three stages). The current detectors are like the majority of our measurement instruments in that they meet and excel ISO standards. This calibration is done in a laboratory and comes with an accompanying certificate. All of our current detectors can perform the demanding tasks in each industrial sector regardless of the technical problem you encounter. If you can't find the current detectors you are looking for, please contact us and we will help you find the best solution to suit your needs by calling our offices on: UK customers +44(0) 23 809 870 30 / US customers (561) 320-9162 and our technical staff will advise you regarding our measuring instruments. Our engineers and technicians will be happy to help you with the current
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Instruments Transformers Tester
Calport 100 Plus
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Calmet Smart Calibration Devices
Three phase instrument transformers and electricity meters tester class 0.1 or 0.2. It makes possible CT and PT testing on site or in the laboratory. We recommend a new replacement - TE30 Working Standard
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Current Probe
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Beijing GFUVE Electronics Co.,Ltd.
Used to measure control currents for relays in electronic circuits and in evaluation testing of capacitors' current characteristics.
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Current Sensors
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Our current sensors were designed for a simple, customer-specific construction of niobium wire wound magnetometers, gradiometers or preamplifiers for small current or voltage signals.
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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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Product
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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Current Probe
PA-622
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*Max. ±100A DCA*Resolution: ≧10mA*Bandwidth: DC~300KHz*Rise Time: 1.2 uS*Over Range Function*10mV/A, 100mV/A Range*Adaptor/Battery Input*Separating Design,Convenient Durable
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Product
Auxiliary Current Transformers
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Osborne Auxiliary Current Transformers are often used to reduce system currents to lower values appropriate for instrumentation and/or protection circuits. The Aux CT’s are designed for specific current ratios and burden impedance with a known transformation error. Osborne’s units are built for high performance and longevity in the most demanding environments.
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Product
Transformer Tester
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Kvtester Electronics Technology Co.,Ltd
High precision instrument for measuring characteristic parameters of transformer capacity, no-load and load. The instrument is a multi-function measuring instrument, which is equivalent to the usual two kinds of test instruments: the transformer capacity tester + transformer characteristic parameter tester. The utility model can precisely measure a series of power frequency parameters of a plurality of transformers, such as the capacity, the type, the no-load current, the no-load loss, the short circuit (load) loss and the impedance voltage.
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Transformer Performance Tester
6691
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applying ±90V voltage on the winding of the transformer demagnetized and get the voltage value on the terminal and the current value in the winding to draw the hysteresis characteristic curve. This method can be used for linear quantitative analysis of residual magnetism in transformers, and fast demagnetization can be achieved by tracking hysteresis curves. The analyzer can measure magnetism residual rate before and after demagnetization.
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Standard- 27.20 (771.00) - 64.00 (1814.00) Godzilla High Current Probe
HC375F-4
High Current Probe
Current Rating (Amps): 100Average Probe Resistance (mOhm): 25Test Center (mil): For more details, please contact us.Test Center (mm): For more details, please contact us.Full Travel (mil): 360Full Travel (mm): 9.14Recommended Travel (mil): 250Recommended Travel (mm): 6.35Overall Length (mil): 3,110Overall Length (mm): 78.99
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Current Transformer Tester
HTCT-300
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Full-featured, can not only satisfy various CT (eg: protection, measurement and TP category) but also PT type electromagnetic unit for its excitation characteristics (ie voltage current characteristics), ratio, polarity, secondary winding resistance, secondary load, ratio deviation, angle deviation and other test requirements.
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Product
Transformer Test Panel/ Setup
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This is a common test panel for distribution/ power transformers of different specifications. The user can perform most of the factory tests, as per the relevant IS standard for the transformers. The panel consists of power analyser, meters for high voltage test, meters for induced voltage test etc, control for all the tests, protection and interlock circuits so that a single panel can be used to conduct a number of tests using only one dimmerstat and the associated devices
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Product
Current Transformer Tester
CT-T1
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The CT-T1 is a microprocessor-based Current Transformer Tester that measures CT excitation current, turns ratio, and winding polarity tests, all without having to switch the leads during testing. The instrument has a fully automatic knee point detection (ASA 10/50, IEEE 30°, IEEE 45°). Although includes 5 low side taps and 1 high side tap.
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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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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
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.





























