Transformer Testers
See Also: Transformer, Transformer Test, Transformer Turns Ratio Testers
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High Impedance Transformers
Osborne high impedance transformers are used to step-up, step-down and isolate voltages in single phase and three phase circuits. A properly designed high impedance transformer can be used an an equivalent to an isolation transformer connected in series with an inductor. The high impedance characteristic may be employed as a current limiting feature in both the primary and secondary circuity.
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Transformer DC Winding Resistance Tester
HTZZ-50A / 246
Wuhan Huatian Electric Power Automation Co., Ltd.
Measurement transformer around the group and large power inductor dc resistance ideal equipment.
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Transformer Ratio Meter
TRM 1000
AJIT Transformer Ratio Meters are the most modern turn's radio meters widely used to test the turn's ratio of high voltage windings, to low voltage windings, of Transformer. These meters are accurate, compact & light in weight.
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Loading Transformer
CL-6
This readily portable Knopp Loading Transformer weighs only 60 pounds and measures 12″ long, 9″ wide, and 10″ high. Its sturdy enclosure provides protection and adequate ventilation. Two convenient carrying handles are provided. The insulating terminal panel is rigidly secured to the transformer frame, and heavy-current, bus-bar-type terminals are securely bolted to the panel. The two outpout terminals each have two connection surfaces, one on a vertical plane and one on a horizontal plane, for maximum convenience in connecting the heavy current leads and in changing, when necessary, the series-parallel links. The links and the output connections cannot interfere with each other. All terminals and connection links are plated
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Transformer Capacity Load No-load Tester
HTRS-V / 261
Wuhan Huatian Electric Power Automation Co., Ltd.
High precision instrument used in transformer capacity, no-load, load and other characteristic parameters measurement.
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Adjustable Isolating Transformers
PeakTech Prüf- und Messtechnik GmbH
The PeakTech 2235 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. The output voltage or the output current can be read exactly on two separate 3-digit LED displays and the fixed output supplies a voltage of 5 V. The device is protected against damage by overload and short circuit by reliable overvoltage protection and can be placed in a 19 ”rack installed or used as a table device (“stand-alone”).
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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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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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Transformer Protection
Schweitzer Engineering Laboratories, Inc.
Transformer protection products and systems provide complete primary and backup protection for all types of transformer faults. They are suited for use in utility-, industrial-, and commercial-scale power transformer systems.
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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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Standard Voltage Transformer
HJ / 635
Wuhan Huatian Electric Power Automation Co., Ltd.
It is mainly designed for the voltage transformer calibration standard of basic power supply and production department.
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Multi Mount Transformer
UET101
UEi Test & Measurement Instruments
Multi Mount Control and Ringer transformer.
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Automatic Transformer Test System
TH2829CX
Changzhou Tonghui Electronic Co., Ltd.
Number of Test PIN: 20 ■ Frequency: 20Hz-1MHz, 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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Current Transformer
LTTJ
Love Controls LTTJ Series Current Transformers allow easy monitoring of the current flowing to your load. This easy to use device provides a 0 to 10 VDC signal into both low and high impedance circuits, and is easily scalable to your needs
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Split Core Current Transformers
Application:Watt Transducer, Current Transducer, KWH Meter, Demand Meter, Power Factor Meter, Current Sensing Relays, Energy Management SystemsContinuous Thermal: Rating 1.25 at 30° C, 1.0 at 55° C Standard 5-amp secondary. Others available.
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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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Current Transformer with Open Core
TCP
Lifasa - International Capacitors, SA
The TCP series is designed for installations in operation. It has a removable core that allows its connection without interrupting the power supply.
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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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Transformer Turns Ratio Meter
We are considered as one of the leading manufacturers and exporters of Transformer Turns Ratio Meter With/ Without Phase. The equipment is widely used in power generation and engineering industry for testing of transformers. We engineer and develop this testing equipment in accordance with industry standards using best grade components and raw materials. This Transformer Turns Ratio Meter With/ Without Phase can be also optimized according to client's specific requirement. We offer this testing equipment at competitive price.
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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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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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Automatic Transformer Test System
TH2840AX
Changzhou Tonghui Electronic Co., Ltd.
■ The test speed is as high as 1000 times/s (>10kHz), without relay action time ■ Test level up to 20Vrms ■ The bias voltage is built-in ±40V/±100mA/2A ■ Up to 288 test pins (only TH2840NX) ■ Industry-friendly user experience: Linux bottom layer, built-in help file
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Transformer Winding Resistance Tester
KRI 9310
KRI 9310 adopt Kelvin four-wire testing method, which effectively eliminates the influence of the resistance of the test line on the test results. It can be able to increases the current to 10A by which can test extremely low resistance to 0.01 Ω(such as amorphous alloy, Copper-nickel, nickel-chromium-iron, iron-chromium-aluminum etc). For the tested objects with high resistance value (CT/PT), the instrument can extend the range to 20 kΩ,so the wide resistance test range enables KRI9310 can cover 80% of the power transformer products on the market and switchgear bus-bar cable etc. The power of the tester use the built-in rechargeable lithium battery that can test hundreds of transformers by one time charging.
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Current Transformer
ST-60CT
Standard Electric Works Co., Ltd
● 400/5A - 800/5A● 7.5-10V A● Class 1● Insulation 600V
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Transformer Test Equipment
DV Power test instruments perform various diagnostic tests on power and instrument transformers. Even more, a unique feature is a condition assessment of on-load tap changers. Performing a transformer test before their breakage can be crucial.Test instruments are portable and enclosed in durable metal cases. Also, the 19” rack-mounted version suitable for factories is available as well.Applications supported by DV Power transformer test equipment include:Winding resistance measurement (IEC 60076-1)Analysis of on-load tap changers (IEC 60214-1)Heat run test (IEC 60076-2)Automatic transformer demagnetizationTurns ratio measurement of power and instrument transformers (IEC 60076-1)Excitation current measurementPhase angle measurementTransformer vector group detectionDemagnetization status verificationAll of the above-mentioned measurements are performed with the highest accuracy.The advanced DV-Win PC software collects both numerical and graphical results. As a result of that, these features provide an easier and more efficient analysis. After the test, DV-Win software generates a test report with a single click. Furthermore, a user can easily customize the test report and save it in different formats, such as XLS or PDF.Finally, the analysis of on-load tap changers is performed by the new method called dynamic resistance measurement (DRM). This is a non-intrusive method. Therefore, it allows detecting problems in on-load tap changers without disassembling them.
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Multiplexer For Transformer Testing
MUX-R
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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Special Application Transformers
Special Application Transformers are available in maintenance-friendly designs with high reliability and minimum losses. These transformers can easily withstand the harshest weather and other conditions to meet the exact demands of power and other industrial applications. They are widely used in different sectors from mining, steel manufacturing, offshore oil, electrolysis to gas platforms. They are easy to install and remove transformers available with highly efficient design to ensure maximum performance.
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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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PPS Clamp Transformer
PPS2 provides power supply to the PD detectors installed on HV cable when low voltage AC power is not available. The PPS2 takes the required power directly from the High Voltage power line under monitoring by means of units clamped on the HV power cable(s).PPS2 is designed to withstand High Voltage line failure events such as temporary overload and short circuit conditions. An internal detection and self limiting circuitry guarantees that PPS2 and the connected equipment survives in case of such events.
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Test Equipment for Instrument Transformer
is desirable for measuring ratio errors and phase angles of low current (voltage) transformers used in electric devices, such as watt hour meters, smart meters, digital current meters, and transducers, etc.





























