Potential Transformer
a type of intrument transformer enabling secondary connected metering.
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Three-circuit Transformer DC Resistance Tester
HTZZ-S20A / 219
Wuhan Huatian Electric Power Automation Co., Ltd.
Designed for full capacity transformerthree-phase dc resistance test around group.
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Power Transformer Testing
HAOMAI Electric Test Equipment Co., Ltd.
Testing products for power transformers.
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Transformer Winding Resistance Meters
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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High Voltage Transformer
RR manufactures HIGH VOLTAGE TRANSFORMERS for various Industrial Applications.
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Split Core Current Transformers
LZCK-55
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 Testing
Measuring bridges or electronic burdens can be individually integrated into existing CT/VT test systems. Customized solutions are our core competence.
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Transformer Loss Measurement Systems
Measurements International Ltd.
The Transformer Loss Measuring System stands as a pivotal tool in ensuring the quality assessment of transformers. It plays a vital role in accurately measuring and evaluating the transformer’s performance by assessing both its no-load loss and load loss. Understanding these losses is essential in determining the efficiency and overall quality of the transformer, offering valuable insights for maintenance and improvement strategies.
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Test Set For Instrument Transformer
This modern Test Set For Instrument Transformer is used for measuring relative errors of Instrument Voltage and Current Transformers. This is developed for reading out the unbalance of any bridge circuit. It also calculates the burden associated to the test sample. In addition to this, it further converts it to ratio and phase error values for presenting them on a LCD screen. With high-tech microprocessor controller, it ensures to provide quick and correct measurements.
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Automatic Transformer Test System
TH2829AX-24
Changzhou Tonghui Electronic Co., Ltd.
Number of Test PIN: 24 ■ Frequency: 20Hz-200kHz, Resolution: 0.5mHz ■ Signal Level: 5mV-2Vrms(Option:2mV-10Vrms) ■ Test Speed: max. 13ms ■ 7-inch TFT LCD display with a resolution of 800×RGB×480
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Testing of Current Measuring Transformers
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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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 Calibrators
CTPT 81
UDEYRAJ ELECTRICALS PRIVATE LIMITED
Tests: Ratio error. Excitation current and curve. Polarity CT / PT TESTER
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Current Transformer Tester
HTCT-300
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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Direct Winding Transformer Monitors
Real time comparison of calculated and direct winding temperatures
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20 Amp Current Transformer Burden Test Set
1044A
Due to overwhelming demand, TESCO is pleased to re-introduce the 1044A 20 Amp Current Transformer Burden Test Set. This light weight, hand held unit is a simple and inexpensive means whereby a current transformer installation may be quickly checked for many sources of trouble. The 1044A provides utilities a less expensive and more traditional option for checking larger services for potential meter circuit related issues.
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Transformer Oil Gas Analysis
It is necessary to analyze outgas in transformer insulation oil in power plant facilities. Shimadzu offers a System GC compliant with ASTM D 3612 Method B (oil stripper sampling) or ASTM D 3612 Method C (headspace sampling). The Nexis GC-2030TOGAS3 system, equipped with a PDHID, enables the analysis of more trace amounts of permanent gas than conventional systems.
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Split Core Current Transformer
Beijing GFUVE Electronics Co.,Ltd.
Have a "split" in the core that allows the CTs to open and be placed around the conductor without having to disconnect the conductor or disrupt the wiring.
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Transformer Turns Ratio Tester (TTR)
HTBC-IV / 251
Wuhan Huatian Electric Power Automation Co., Ltd.
Suitable for transformer testing of three-phase transformer, z-winding transformer, rectifying transformer and railway electrical system.
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Automatic Transformer Test System
TH2829LX
Changzhou Tonghui Electronic Co., Ltd.
Number of Test PIN: 20 ■ Frequency: 20Hz-200kHz, Resolution: 0.5mHz ■ Signal Level: 5mV-2Vrms(Option:2mV-10Vrms) ■ Test Speed: max. 13ms ■ 7-inch TFT LCD display with a resolution of 800×RGB×480
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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 Monitors
The Transformer Advantage is a precision temperature monitor for liquid-immersed power and distribution transformers. It is rugged, fully electronic and field configurable. With Transformer Advantage, users can extend transformer life, utilize maximum capacity and reduce maintenance costs.
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Three-Phase Transformer Winding Resistance Meters
TWA Advanced Series
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.
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Software For Transformer Measuring Lite
T-Base Lite
T-Base Lite is intended for users preferring simplicity over complexity of the Pro version. It is limited to the basic functions of USB interface, data import, data export, synchronization, and automatic firmware updates. Data can be exported in many popular data formats such as Excel, Word, text, .csv, .xml, Crystal reports, and .html. Measurements can be saved as archive files and imported into the database of the T-Base Pro version.
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Control Transformers
ENTES control transformers ensure the safe operation of measuring devices with 24 VAC supply voltage for electical control panels. Input voltages of Control transformers are either fixed (230 or 400V) or selectable with taps (400;230+15-15).
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Fourier Transform Infrared Spectrophotometer
IRTracer-100
This system achieves excellent sensitivity with an SN ratio of 60,000:1, high resolution at 0.25 cm-1, and high-speed scanning capable of 20 spectra/second. The performance of medium and higher end models is supported by high reliability including advanced dynamic alignment and an interferometer with a dehumidifier. This is compatible with applications active in a variety of circumstances, with a library of approximately 12,000 spectra and data analysis programs for contaminant analysis, and time course and rapid scan programs for reaction tracking.
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Transformer Monitoring
MTE offers a broad range of products and solutions for the online gas-in-oil monitoring of transformers (online DGA). With its individual and modular system components MTE provides the optimal customer oriented solution for utilities, industries and transformer manufacturers.
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Transformer Winding Resistance Meters
RMO TW Series
The RMO-TW instrument can perform a simple, fast and reliable verification of a transformer on-load tap changer. This instrument allows measurements of a winding resistance at each tapping position of an on-load tap changer without discharging between tests. Problems with OLTC switching, such as interruption, can be detected with these measurements. The results are displayed on a backlit LCD screen.
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Series Precision Multi-Ratio Current Transformers
PMT25090
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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HDBaseT Transformers
Pulse HDBaseT transformers are designed to provide common mode noise reduction for improved EMI performance and support power over HDBaseT (PoH) applications of up to 100W. The HDBaseT technology enables 5Play feature set, which includes ultra high definition 4K video, audio, 100BASE-TX Ethernet, various control signals, and up to 100W of power, on a single 100m/328ft CAT5e/6 cable.
