Transformer
transfers of electricity from one circuit to another by electro-magnetic induction.
See Also: Transformer Testers, Power Distribution, Coil
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Product
Transformer Oil Gas Analysis
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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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Product
Automatic Three Phase Transformer Ratio Meter
ATRM PLUS
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*Fully Automatic measurement.*Wide selection of Excitation Voltages of 10V, 40V, 100V, 230V & 250V from front panel.*4V Excitation voltage provided for CT measurements*Ratio range of up to 5000; direct display of measured ratio.*No conversions required.*Automatic Jumper selecting as per the vector*Diagram of Transformer.*Automatic testing of all 3 phases in 3 phase transformers*Without manual intervention.*Displays % deviation from a nominal ratio.*External storage facility using pen drive.*Internal storage up to 10000 readings.*Touch screen 7” Color TFT display with backlighting with*Resolution of 800 X 480.*Tap changer facility.*Computer interface using RS-232 or USB.*Windows Interface software provided for data transfer.*USB printer interface.*Four terminal measurements to reduce errors due to*Winding and lead resistance.*Auto print and storage facility.Fast measurements.
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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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Product
Uniload Voltage Transformer
2J4-4
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The Type 2J4-4 Knopp Uniload Voltage Transformer Test Set consists of three major parts:
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Product
Electric Transformer
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Zhengzhou SMS Electric Co.,Ltd
For the convenience of the user or the low voltage metering box of electric energy metering, instrument with high precision (0.1)split core type current transformer.
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Product
Potential Transformer Test Set
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Supreme Instrument Laboratories
The two voltage vectors, one from Standard Potential Transformer and the other from the Potential Transformer under test energies the high permeability magnetic core and then associated windings try to annual the residual magnetism which occurs due to error. The differential vectors will be proportional to phase error and ratio error magnitudes.
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Product
Transformer Analyzer
505
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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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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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Product
Single Phase Transformer Ratio Meter
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*Ideal for VT testing*Bushing Current Transformers (BCTs)*Higher resolution*Excitation current meter
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Transformer Short Circuit Impedance Tester
JYW6300
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This instrument is mainly applicable to low voltage load impedance test of 35kV and above power main transformers (single phase or three phases) in ex-works routine tests, overhaul tests, pre-tests, and acceptance tests.
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Product
Transformer Test Equipment
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KV Hipot Power Test Equipment Co.,Ltd
Transformer Test Equipment. Ensure that a transformer meets performance and reliability requirements, from the production line to after a repair or upgrade, when a major disruptive event occurs such as a lightning strike, or for preventive/predictive maintenance.
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Product
Relaying Current Transformer Analyser
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*Measures Ratio, Excitation Characteristics, Polarity, Winding Resistance, Remanance, and Insulation Resistance of secondary winding. * Determines Composite Error. * Used to test un-mounted CTs or CTs that are mounted but isolated inside the power system equipment. * Conducts a whole series of tests automatically, thus speeding up the time to commission CTs and relaying systems. * Battery powered test set - light weight & fully portable. * Provides a graphical presentation of the CT excitation characteristics. * Determines the IEC 10/50 knee point and the point of maximum permeability, ANSI 45 degree Slope Point. * Detects shorted turns or insulation problems within the test CT, thus avoiding commissioning of faulty equipment.
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Product
Power Transformer
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We are amongst the leading names in the industry, offering wide range of Power Transformer that are technically advanced in nature and have high strength. Our entire product line is dimensionally accurate in nature and requires low maintenance cost. They are thermostatically balanced in nature AND are easy to install.
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COMPUTERIZED LCRTZ TEST SYSTEM (Automatic Transformer Test System)
CVCT-S20
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Ideal for fast and fool proof testing of COILS AND SMALL TRANSFORMERS like SMPS transformers, Telecom transformers (HYBRID, POT CORE, RM-CORE), Pulse transformers etc. The systems scans at one stroke, all the windings of a transformer and tests as per definition of test procedure. The test procedure can be pre-programmed and stored under User friendly menu driven software . Any semi-skilled and unskilled person can be engaged for actual testing purpose. Can Select test frequency, pin number, parameters, test conditions, limits for each test. Test any pin to any other pin any defined parameter.Test Parameters :-> Inductance-> Capacitance-> AC Resistance, -> DC Resistance, -> Impedance, -> Leakage Inductance,-> Transformation Ratio & Winding PolaritySPECIFICATIONS :Measurement Frequencies : 50 Hz, 100 Hz, 500 Hz, 800 Hz; 1 KHz, 2 KHz, 5 KHz, 10 KHz. Measurement Voltage: 0.1 V – 1.0 V RMS adjustable under program control.
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Product
High Frequency Current Transformer
HFCT Ø 140mm
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Techimp Clamp High Frequency Current Transformer model 140 is an inductive sensor for partial discharge measurements. It is suitable for online /off line PD tests on : large diameter cables ; grounding rod bar ; etc. A TNC termination is available to connect the Clamp HFCT 140 to the TechImp PD analyzer : PDCheck , PDBase etc. The arrow indicates the requested input current (Iin) direction to get coherent output voltage (Vout) polarity respect to ground. When the sensor is installed with the arrow directed to ground, the detected voltage signal (Vout) has the same phase of the input current (Iin).
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Product
Zero Phase Current Transformer
MZL-30
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MULTI MEASURING INSTRUMENTS Co., Ltd.
Split-core type for measuring zero phase current
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Product
Transformer Polarity Tester
PMT20030
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Power Measurement Technologies Inc.
A hand held instrument for polarity identification of current, voltage and power transformers with an operable ratio range from 1:1 to greater than 5000:1.
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Product
True Online UPS Systems with Inbuilt Isolation Transformer
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Our software and connectivity devices incorporate all the features you need to proactively manage your systems, from basic monitoring and shutdown to predictive analysis and power management. Aplab Integration Services offer complete solutions tailored for the specific requirements of Defense Services, Telecom and Commercial markets.
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Single-Phase Transformer Winding Resistance Meters
RMO-TW Series
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RMO-TW series is perfect for winding resistance measurements of inductive objects. It is ideal for testing transformer windings (power transformers, distribution, autotransformers) and for on-load tap changer verification. In addition, any RMO-TW transformer ohmmeter & tap changer analyzer can also perform transformer demagnetization.The series contains 4 models, with maximal test currents from 10 A (RMO10TW) to 50 A (RMO50TW). They are fitted in a portable and lightweight metal housing.All transformer ohmmeters from RMO-TW series generate a true DC ripple-free current with automatically regulated measurement and discharging circuit. The injection of current and discharge of energy from the test object are automatically regulated.Three independent channels enable testing of three windings in series. Consequently, this enables measurements of winding resistance in every tap position of an on-load tap changer without discharging between the tests.DV-Win software 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. Finally, a user can export all results in the form of a report.
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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
VARIABLE TRANSFORMER DC POWER
208163V
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Motorized Variable Transformer Controlled Power Supply, P/N 208163VInput power: 208 VAC, 6 Amps, 3 PH, 60 HzOutput: 0 to 120 VDC, 16 Amps max.Ripple: 5%Manual control with variable transformerCircuit breaker / ON OFF on the 208 VAC, 3 PH input lineProtection fuse provided on the outputPOWER ON lightIndoor enclosure: 24H x 20W x 9DVoltmeter and ammeter are installed to monitor the output.All input/output connections are available inside the enclosureSystem includes main unit and remote assembly.
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Product
Range Extension Transformer
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• Range extension transformer to extend the capacitance range upto 2.6 micro Farad (ACTS-12K) and 2.4 micro Farad (CTS-12KSA)
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Product
High Frequency Current Transformer
HFCT
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The HFCT is a high frequency current transformer designed specifically for picking up partial discharge signals. It has a split core ferrite to allow retrospective fitting to earth straps without the need for disconnection. The durable body has a hinge and a quick release latch, making use quick and easy. The HFCT is constructed with an aluminium body to provide RF shielding and improved performance in noisy environments.
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Transformer/Capacitor Test Sets
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*Quick and easy check for opens or shorts on transformers or capacitors 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 as well as capacitors and capacitor banks*Tests the primary and secondary sides of de-energized transformers and capacitors without disconnecting*Helps prevent line workers from installing a fuse on a shorted transformer or capacitor*Automatic self-test featureMagnet holds the tester in place while testing
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Electronic Transformer Test System
UI2000-ET
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• Input characteristics analysis 1) Measure Vrms (10-300V) Lrms (0.04-4A) W, PF, Hz, total harmonic and 0-50 component of harmonic 2) Accuracy: ± (0.4%reading + 0.1%range + 1digit) • Output characteristics analysis 1) Measure lamp voltage (1-60V) lamp current (03-20A) lamp power, crest factor and oscillatory frequency 2) Accuracy: Class 2 • It can print without compute, and provide the communication port for PC
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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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Product
TRANSFORMER WINDING RESISTANCE METER
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International Biological Laboratories
This Test set is suitable to measure winding resistance of transformers, single or 3-phase, star or delta connected upto several MVA.Two independent displays read the resistance of both primary & secondary windings simultaneously. However, primary or secondary winding can also be measured separately.
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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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Transformer Preamplifier
SR554
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Stanford Research Systems, Inc.
The SR554 is a low-noise, transformer-coupled preamplifier optimized for source impedances between 0.05 Ω and 1 kΩ. With an input noise of only 0.1 nV/√Hz, the SR554 can be used in a wide range of low-noise applications.
