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Similar Topics: Transformers
Transformer
transfers of electricity from one circuit to another by electro-magnetic induction.
See Also: Transformer Testers, Power Distribution, Coil
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High-Voltage Transformers
We produce high-voltage transformers for power supplies and checking equipment from 10 to 300kV to order to meets customers' specific requirements.
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Transformer Regulation
Transformer Parallel Control System is designed to monitor & control the tap changers of up to four (4) transformers connected on a common bus & operating in a MASTER FOLLOWER control configuration.
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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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Current Transformer
ST-3RCT
Standard Electric Works Co., Ltd
● Primary Current Rating (Amp) : 20~300
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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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RF Transformers
Pulse continues to lead the way with a broad range of components that enable twisted-pair copper high-speed services to homes and businesses. Pulse components are also used in cable modems and the consumer electronics that provide home networking services. Our high-performance transformers support home phone line and power line networks. These transformers are designed to exceed ANSI and ETSI standards, and have excellent THD performance and small footprints.
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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
Supreme Instrument Laboratories
Portable Low Tension precision grade multi ratio Current Transformers, housed in laminated wooden cabinet, wound primary with suitable terminals on highly insulated bakelite panel upto 100 Amps. For higher ranges, a centre hole is provided for passing primary conductors for desired range.
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Combined Transformer
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.
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High Voltage Transformers
We, NMC, are engaged in manufacturing AC/DC High Voltage Transformers ranging from 5kv upto 150Kv having current capacity from 10mA to 200mA AC/DC in Air cooled or Oil Cooled type as per the customer requirement.
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Instrument Transformer Calibrators
MRL 22
UDEYRAJ ELECTRICALS PRIVATE LIMITED
Automatic measure of contact resistance. True 4 terminal measurement. μP operated, automatically saves results.
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Three-Phase Transformer Demagnetizer
DEM60C
After a DC current test, such as winding resistance measurement, the magnetic core of a power or instrument transformer may be magnetized (remnant magnetism). It can cause various problems such as wrong diagnostics, inaccurate measurements on a transformer, inrush current at the start-up of a power transformer, or incorrect operation of protective relays due to magnetized CT cores. The best way to eliminate this source of potential problems is to use demagnetizer on the power or instrument transformer.The DEM60C is a fully automatic test instrument which performs three-phase transformer demagnetization. Transformer magnetic core demagnetization requires the application of AC current with magnitude decreasing to zero. DEM60C provides this AC current by internally changing the polarity of a controlled DC current. During the demagnetization process, the instrument supplies the current at decreasing magnitude for each step, following a proprietary algorithm. It can demagnetize single-phase and three-phase power transformers.The instrument can be connected to all three phases of a power transformer to be demagnetized, on either the primary or the secondary side. If a user selects specific vector diagrams for different types of transformers, DEM60C will run a specific demagnetization procedure for each transformer type (i.e., single phase, delta, wye/star, zig-zag.) without switching the test leads.DEM60C enables safe and efficient power transformer demagnetization. The instrument automatically regulates the injection of current and discharging energy from the inductance. During and after the operation, an intrinsically safe discharge circuit with an indicator rapidly dissipates the stored magnetic energy. The discharging circuit is independent of the power supply, which improves its reliability in case of loss of power.Test currents of up to 60 A DC enable efficient demagnetization of even the largest power transformers. Using a DV Win software, it is possible to control DEM60C externally.
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Separating Transformers
Is a transformer in which the primary and secondary windings are galvanically/electri- cally separated with basic insulation. Isolating transformer: A separating transformer with a protective partition between the primary and secondary windings.
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Synchro Control Transformer
SCT-RCT
Computer Conversions Corporation
The SCT Series are low cost, miniature, solid state control transformers designed for military and industrial control applications. They will directly replace conventional electromechanical control transformers & thus provide digital control to existing analog servo systems.
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Power Transformer Testing
HAOMAI Electric Test Equipment Co., Ltd.
Testing products for power transformers.
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Transformer Power Tester
HDFZ -III
HD Power Test Equipment Co.ltd
HDFZ-III Transformer Power Tester is an multi-function instrument which is used to test accurately a serious of parameters such as capacity, type, no-load current ,no-load loss, impedance voltage of various transformers. The test result of capacity and characteristic can be up to 100% accuracy rate. The capacity measurement range :10kVA~100000kVA。
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Transformer Capacity Tester
Weshine Electric Manufacturing Co., Ltd
In many industries, including health care, manufacturing, electrical contracting, higher education and corrections, reliable, high-quality transformers are essential for keeping operations running efficiently. Large facilities and industrial processes require substantial amounts of power, and they need dependable transformers to convert the energy coming from the power plant into a form they can use for their equipment and building utilities.
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Vehicle-Mounted Testing Transformer
GTU-320KVA/320KV
Wuhan Sangao Electrical Test Installations Limit Co.
GTU high-voltage testing transformer uses SF6 as the insulating gas to separate the vacuum room from the outside,this equipment reflects the smallness in size, lighter in weight,higher voltage grade for unit,convenience in transportation and operation,It can let the large capacity and high voltage power frequency transformer arrived at the scene for the high-voltage test.
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Transformers
Chengdu Mengsheng Electronics Co., Ltd.
As a leading transformer manufacturer, DOREXS is committed to providing a variety of high-performance standard and customized transformers to meet the power needs of various industries.DOREXS has a professional R&D design team and advanced production technology to ensure that our transformers are at the forefront of the industry. At the same time, they are strictly produced in accordance with international standards to ensure that the performance and stability of each transformer are maximized.Our products cover dry type transformers, single phase transformers, three phase transformers, high frequency transformers, toroidal transformers, R core transformers, EI core transformers, isolation transformers and special transformers.If you need to know more about our products and services, please feel free to contact us.
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HV Test Transformer
GTU-800KVA/220KV
Wuhan Sangao Electrical Test Installations Limit Co.
SF6 gas -filled testing transformers are especially designed for GIS in the factory and on-site test,and for testing all GIS switchgears and GIS components such as insulators,insulating tension pole,GIS voltage transformer and so on,the PD test can be performed under the general environment because of the merits of encapsulation ,the PD level of our equipment can be lee than 3pC,and it can be added a HV bushing to perform the withstand voltage test at the same time.
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Step Up Transformer
MagD
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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Range Extension Transformer
• 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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VOLTAGE TRANSFORMERS
Designing & manufacturing a range of high quality, voltage transformers in three different frame sizes for both measuring and protection duties. Transformers which are designed to comply with the requirements of IEC 61869-3 or other international standards as required can be supplied to satisfy most Low Voltage applications.
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Isolation Transformers 230V
PeakTech Prüf- und Messtechnik GmbH
Due to the high safety requirements in service workshops, schools and industry, an isolating transformer is an absolute prerequisite for carrying out professional repair work. Galvanic isolation between primary and secondary voltage during measurements and repairs on open devices guarantees a high safety standard for the user. Of course, galvanic isolation from the mains voltage also offers other advantages in electronics development, audio technology and many other areas.
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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%≤
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High Frequency Current Transformer
HFCT Ø 140mm
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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Current Transformers
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 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.
