Potential Transformer
a type of intrument transformer enabling secondary connected metering.
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Product
Potential Meters
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Potential meters are basically electrometers which have extremely high input resistances in order to keep the feeding reference electrode free of load. This is necessary to maintain the true potential. pH - meters can be used as potential meters when fast reading is not required, because common pH meters are very slow. When the potential answer to current pulses is to be followed, potential meters are essential.
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Product
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 Polarity Checker
865
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This instrument is used to check the correctness of polarity markings on transformers. In operation, the two leads carrying the test current are connected to one of the transformer windings. The other two leads from the indicating meter are connected to the other winding.
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Current Transformer
ST-12RCT
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Standard Electric Works Co., Ltd
● Primary Current Rating (Amp) : 800~2000
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Electrostatic Potential Monitoring Device
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electrostatic potential monitoring device that has an interface for connecting our potential sensors EMS-01 / EMS-01A / KS-2100 and measures static electricity in real time. It is possible to monitor static electricity with simple The compatible potential sensor EMS-01 / EMS . With SD card support, measurement data and alarm history can be collected with a time stamp. Operation using the touch panel display and screen display, and to notify and manage the measurement status with multiple control outputs. ...-01A Has Passed The Intrinsically Safe Explosion-Proof Structure Certification In Combination With The Safety Cage KS-301A, And Can Be Used In A Dangerous Atmosphere.
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AC Test Transformer
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Shanghai Guantu Technology Co., Ltd.
How the AC test transformer prevents the overvoltage generated by the frequency conversion series resonance test device is a relatively simple problem, but the overvoltage caused by voltage fluctuation is difficult to appear when the overvoltage protection is set. Generally, the overvoltage of the frequency conversion series resonance test device will appear in the frequency sweep stage of the instrument, that is, in the process of finding the resonance point. Those who have used it know that in the process of finding the resonance point of the frequency conversion series resonance test device, the voltage and frequency have a parabola-like linear relationship. By default, the system finds the high voltage, that is, the apex of the parabola as the resonance point.
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Product
Current Transformer
ST-30CT
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Standard Electric Works Co., Ltd
● 30/5A - 150/5A● 2-3V A● Class 1● Insulation 600V
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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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Product
Transformer Turns Ratio Testers
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Transformer turns ratio testers from TRT series are DV Power instruments mainly designed for the measurement of power transformer turns ratio. Also, they measure transformer excitation current and phase shift. Special tests, such as automatic vector group detection and magnetic balance, can be performed on three-phase transformers and three-phase autotransformers.All models, except TRT03 series, have a built-in true three-phase power source, which is necessary for testing turns ratio of transformers with special configurations, such as phase-shifting, rectifier, arc-furnace, traction transformers, etc.DV Power turns ratio testers can output various test voltages for different applications. From the extremely low test voltage of 1 V AC that enables turns ratio verification of the majority of current transformers, up to the highest test voltage of 500 V AC that provides the most accurate turns ratio testing of power transformers used in power generation and transmission. By using the external booster, test voltage increases up to 5 kV AC in order to successfully test capacitive voltage transformers.All DV Power turns ratio testers have a built-in tap changer control unit. Because of that, it is possible to control the on-load tap changer (OLTC) directly from the device. In order to make the most out of this feature, the instrument and included DV-Win software can be programmed to do everything automatically – running turns ratio tests, changing OLTC tap positions, and saving results. This option significantly facilitates and shortens the turns ratio testing time.TRT turns ratio testers use the same set of cables as three-phase winding ohmmeter & tap changer analyzers from the TWA series. Consequently, it enables one-time cable setup for performing eight tests:turns ratioexcitation currentphase anglemagnetic balancevector group detectionwinding resistanceon-load tap changer DVtestand demagnetization.
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Product
Distribution Transformer Tester
NDB-DOC™
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The NDB-DOC™ is a test instrument designed for distribution networks transformers from 10kVA to 2500kVA. It can determine the presence of short circuits or an open circuit in the distribution transformer primary winding & also short circuits on the secondary winding. The NDB-DOC™ is designed to be operated from an arial device or from the ground at the end of a hot stick without disconnecting the transformer’s secondary windings.
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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
Distribution Transformer Tester
NDB-DOC-3™
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The NDB-DOC-3™ is a test instrument designed for distribution networks transformers from 5kVA to 3MVA. It can determine the presence of short circuits or open circuits in the distribution transformer primary winding & also short circuits on the secondary winding.The NDB-DOC-3™ is designed to be operated without disconnecting the transformer’s secondary windings from their loads.
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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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Current Transformer
ST-3RCT
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Standard Electric Works Co., Ltd
● Primary Current Rating (Amp) : 20~300
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Product
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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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
2KVA Scaler Transformer
T-1005
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The Titan Series T-1005 Scaler Transformer is used to conveniently scale the standard OV to 130V/260V full scale AC Power Source/Frequency Converter output to 76 different full scale voltages and currents. It is also used to join and scale the power from multiple Titan series AC Power Sources/Frequency Converters into a single output. It has a conservative continuous power rating of 2KVA and excellent voltage regulation.
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Product
Transformer Heat Run Tester
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1. Suitable for all transformers below 240MVA heat run test and winding resistance testing.2. Printing heat run data automatically.3. With double power supply, can test high voltage side and low voltage side simultaneously and test any operation respectively.4. With anti breakage protection function of inductive test items.
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Product
PD Free Test Transformer
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Wuhan Fanke Transformer Manufacture Co., LTD
PD Free Test Transformer
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Product
Current Transformer
ST-100CT
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Standard Electric Works Co., Ltd
● 1000/5A - 3000/5A● 10-15V A● Class 1● Insulation 600V
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Product
Testing of Current Measuring Transformers
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All components from this category can be integrated into an existing current transformer test system. When selecting CT test components, both the type of converter to be tested and the required current are important.
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Product
Current Transformers
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Rishabh Instruments Pvt. Ltd.,
Rish Nano CT is a very reliable, efficient and robust current transformer for measurement of AC current. It provides 100 mA AC output. It can be used in Circuit breakers. Earth Leakage Protection.
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Product
PXI Potential Divider Module 12-Channel (no resistors fitted)
40-282-021
Programmable Resistor Module
The 40-282 is a potential divider with up 24 separate channels. This can be used to emulate potentiometer devices, each channel having a fixed R1 R2 ratio. Additionally, the centre point can be shorted to either of the potentiometer end points.
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Product
Adjustable Isolating Transformers
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PeakTech Prüf- und Messtechnik GmbH
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.
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Instrument Transformer
CT & PT Test Equipment
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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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Product
Transformer Insulation Testing
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The primary test methods used to assess the condition of the active insulation components in transformers and bushings, on site, include:1) power factor/tan δ,2) variable frequency power factor/tan δ (1 - 500 Hz)3) dielectric frequency response (DFR) [a dielectric response method], and4) moisture in oil measurements (for transformers).
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Product
Multiplexer For Transformer Testing
MUX-R
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Raytech Multiplexer MUX R is designed to drastically reduce cabling time and increase test performance. It is made to be used with Raytech Winding Resistance and Turns Ratio Meters. Any MUX R configuration can be easily controlled by a Winding Resistance Meter touch panel or by remote.
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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
Standard Current Transformers
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Measurements International Ltd.
Single Range, Highest Permeability, Wide Measurement Range, Negligible Current Errors, High Accuracy.
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Product
Instrument Transformer Test Systems
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Our systems for testing voltage (VT) and current (CT) instrument transformers are conceived among other things for testing accuracy and insulation.
