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Instrument Transformer
CT & PT Test Equipment
Measurements International Ltd.
Calibration of Voltage and Current Transformers from a Single Instrument, Calibration of Instrument Transformers with Different Rated Ratios Using One Single Reference Standard, Calibration of Voltage Transformers (VT) up to 800 kV When Used with MI 2500 Series of HV Dividers and Standard Capacitors, Calibration of Current Transformers (CT) Up to 10000 A When Used With MI 7020 and/or 7200 Series of Precision Current Transformers and/or Current Comparators, Test Frequency from 15 Hz to 100 Hz70.
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Automatic Voltage Transformer Comparator
KATC-V2
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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Automatic Current Transformer Comparator
KATC-C2
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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Comparators
Renesas offers a comparator portfolio that includes nano power comparators, high-speed CMOS comparators, and precision quad comparators. Our general-purpose comparators utilize CMOS processes suitable for low voltage, low power consumption, and fast response. We have also recently expanded our comparator offerings with Intersil comparator products.
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Pressure Comparators
AMETEK Sensors, Test & Calibration
Our high-pressure, hydraulic pressure comparators are portable, self-contained, hydraulic pressure generators for calibrating pressure gauges, transmitters, sensors, and safety valves. They are much faster than deadweight testers and most automated pressure controllers; and it’s so quick and easy to use, it’s ideal for calibrating those low cost gauges that are often overlooked for ISO9000 compliance. Each pump is available on its own, or in one of our complete ready-to-use pump systems.
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Mass Comparators
Comparators from 0.1 g to 6000 kg. M_one and M_10 Vacuum Mass Comparators, Automated Mass Comparators, Robotic Mass Comparators, Systems for Volume, Density & Magnetism, Manual Mass Comparators.
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Current Transformer
ST-12RCT
Standard Electric Works Co., Ltd
● Primary Current Rating (Amp) : 800~2000
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Voltage Transformer
Beijing GFUVE Electronics Co.,Ltd.
Are a parallel-connected type of instrument transformer. They are designed to present a negligible load to the supply being measured and have an accurate voltage ratio and phase relationship to enable accurate secondary connected metering.
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Current Transformers
Excellent measurement technology requires high-quality current transformers. The product portfolio comprises a wide range of current transformers for load currents (operating currents) and residual currents (RCM). Different designs cover a variety of installation situations and metrological requirements, and enable retrofitting. AC/DC sensitive measuring current transformers use a special measurement method to detect both AC and DC currents of different frequencies.
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Current Transformer
ST-9RCT
Standard Electric Works Co., Ltd
● Primary Current Rating (Amp) : 800~2000
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Voltage Transformer
PT2
Shanghai Powoo Industry Develop Group Limited
- completely enclosed, good mechanical behavior, suitable for various environments, strong voltage isolation ability, delicate appearance; - the lead wire has a pin format, which makes it easy to be fixed on a PCB; - the mechanical dimensions for this series of PTs are relatively small, hence can be used an electronic component; - good linearity, high precision, wide operating range; - ABS anti-combustion plastic casing; - encapsulated with epoxy resin to ensure strong insulation ability.
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Comparators
A device for comparing a measurable property or thing with a reference or standard.
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Injection Transformer
J2101A
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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Comparators
General-purpose comparators utilizing CMOS process suitable for low voltage, low power consumption, and fast response.
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Mass Comparators
XPR Line
XPR mass comparators provide secure, traceable calibration for weights up to 64kg, making them the instrument of choice for extremely small weigh-ins at high tare load. The comparators’ high repeatability and ability to support low minimum weight values make them the preferred choice for not only weight calibration but also accurate measurement of extremely small goods at high tare loads.
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Power Transformers
Power Transformers are used to convert voltages and isolate signals for functionality and safety. Our broad line of catalog and custom solutions range from mW to 5-10kW and are used in multiple topologies including flyback, forward, push-pull, resonant, LLC and phase shifted full bridges. Typical operating frequencies are between 80-500kHz but solutions can be adapted for greater than 1MHz operation.
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Transformer Tester
MOTOMEA Distribution Transformer Test Systems: Routine Testing for Production (EOL) and Quality Assurance (QA). Type Testing at Laboratory (R&D)
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Filament Transformers
Osborne designs and produces high impedance and unregulated Filament Transformers. An unregulated filament transformer supplies a specified voltage and current to the filament of an electron vacuum tube. High impedance filament transformers are designed around a tungsten tube filament. Osborne often works with our clients to increase the life-span of their vacuum tubes through the use of a regulated voltage supply.
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Transformer Analyzer
505
The UTEC 505 Transformer Analyzer is designed for testing current transformers (CT) and potential transformers (PT) without interruption of the customer’s service. This instrument measures CT admittance, CT ratio, CT primary-to-secondary phase angle and the voltage, current and phase angle of the service. With the ‘Burden CT/PT Option’, it determines the CT secondary burden capability, the regulation of the PT and its secondary burden capability and provides for CT core demagnetization.
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High Frequency Transformers
Osborne High Frequency Transformers are isolation transformers and auto-transformers that operate at frequencies higher than 50/60 Hertz. Osborne recommends high frequency operation for certain applications that demand a significant reduction of the physical size of electromagnetic components. Osborne helps our clients take advantage of higher frequency designs by identifying and accommodating (or preventing) high frequency loss characteristics, such as skin-effect losses, proximity effect losses and stray losses.
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Transformer Ratiometer
TR-1C
Model TR-1C Transformer Ratiometer is a precision test set with an easy-to-read in-line digital readout from 0.00001 to 1.00000, suitable for testing all types of single and three-phase power distribution, potential and current transformers.
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Monopulse Comparators
PMI offers a variety of Monopulse Comparators with a wide range of options and custom specified hardware for beamforming antenna applications up to 21.5 GHz.
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Isolation Transformers
Provide line isolation, noise filtering and surge suppression for electronics in industrial, office and network environments.
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Optical Comparators
Starrett optical comparators provide a time tested, cost effective, solution for non-contact measurement. Optical comparators are used for an exceptionally wide range of dimensional inspection applications.
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Auto Transformers
Variac Auto Transformers are continuously variable voltage auto transformer, having a movable carbon tip, fixed to a brush-arm sliding on a silver plated commutator. Rotation of the brush-arm by either manual or motor drive, delivers-an output voltage from zero to or above line voltage.
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Instrument Transformer
Our company has achieved a reputed niche in international market by manufacturing and exporting a great range of Instrument Transformer. Widely used in electrical, power generation and engineering sector for transforming voltage or current level, this equipment is in accordance with industry standards. Manufactured using excellent grade raw materials sourced from reputed vendor, Instrument Transformer is offered to clients in different technical specifications. We stringently test this instrument on varied standard parameters.
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Current Transformer
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 Transformers & Bushings
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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HV Testing Transformer
Wuhan Sangao Electrical Test Installations Limit Co.
Inflatable Ultralight Non Partial Discharge Testing Transformer is a high-end testing transformer which firstly marketed in China by our company. The high-light characteristic of the equipment reflects the smallness in size, lighter in weight clean, oil-free, unnecessary static of field investigation, longer working life without maintenance and slightness in non-partial-discharge. It is used for the insulators' voltage-resistance testing.Major technical characteristicVoltage unit50.100.150.200.250.300.500kVCapacity unit3.5.10.15.20.25.30.50.100.150.200.300.500.1000kVAInput voltage220, 380V uniphase 50HzImpedance voltage6%≤No-load current8%≤Wave form distortion3%≤Annual gas leakage1%≤