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Transformer & Capacitor Testers
*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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Transformer Short Circuit And Impedance Tester
HDZK
HD Power Test Equipment Co.ltd
Low voltage short circuit impedance test is to identify the shock of short circuit on the transformer on the operation, which is the direct method of checking the winding distortion after transformers hit by mechanical forces during transportation and installation.Short circuit impedance test is an important parameter to decide the running or disassembling inspection for transformer .Transformer Short Circuit And Impedance Tester is a new development instrument suitable for testing low voltage short short circuit impedance 35kV transformer in the field and labor
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Three-circuit Transformer DC Resistance Tester
HTZZ-S10A / 218
Wuhan Huatian Electric Power Automation Co., Ltd.
Designed to meet the dc resistance test of three-phase winding in large capacity transformer.
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Transformer On-load Tap changer Tester
HDYZ
HD Power Test Equipment Co.ltd
HDYZ Transformer on-load tap changer Tester is a unique moving part that is connected with the circuit of the transformer, It is essential to test the on-load tap changer of action sequence and switching time.HDYZ Transformer On-load Tap Changer Tester is mainly applied to measure the transient waveform, transient time, transient resistance value, three-phase synchronization of transformer on-load tap-changers.
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Transformer Performance Tester
6691
applying ±90V voltage on the winding of the transformer demagnetized and get the voltage value on the terminal and the current value in the winding to draw the hysteresis characteristic curve. This method can be used for linear quantitative analysis of residual magnetism in transformers, and fast demagnetization can be achieved by tracking hysteresis curves. The analyzer can measure magnetism residual rate before and after demagnetization.
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Turns Ratio Testers
TRT Advanced Series
TRT Advanced series is the newest DV Power solution for transformer turns ratio measurement. Besides its main application, each turns ratio tester from this series also measures transformer excitation current and phase shift. Furthermore, all models perform automatic vector group detection and magnetic balance on three-phase transformers and three-phase autotransformers. They have a built-in true three-phase power source. For that reason, they can test transformers with special configurations, such as phase-shifting, rectifier, arc-furnace, traction transformers, etc.The instruments can output test voltages from 1 V AC to 500 V AC, depending on the model. With the highest test voltage 500 V AC, TRT500 provides the most accurate turns ratio testing of power transformers used in power generation and transmission. The output test voltage of TRT500 can be boosted to 5 kV AC using the external CVT20 extension transformer. This application is specially designed for testing turns ratio of capacitive voltage transformers. The other three models, TRT400, TRT250, and TRT100 can output up to 400 V, 250 V, and 170 V respectively. The low test voltage of 1 V AC enables turns ratio verification of current transformers.TRT500 is equipped with a large 10.1” graphical touch screen display. Other models, (TRT400, TRT250, TRT100) have 7” graphical touch screen display. Besides making the interface much more user-friendly compared to older turns ratio testers, it also brings certain options that were previously available only with DV-Win software. The most important are test templates and automatic test mode. Users can simply create test templates, store them in the instrument’s memory, and load when in the field with just a few clicks.This turns ratio test set, as well as all other DV Power turns ratio testers, has a built-in tap changer control unit. It enables remote control of an on-load tap changer (OLTC) directly from the instrument. In order to make the most out of this feature, the instrument can be programmed to do everything automatically – running turns ratio tests, changing OLTC tap positions, and saving results. This option, especially in combination with test templates, significantly facilitates and shortens the turns ratio testing time. Automatic test mode minimizes human errors, which makes the measurement more reliable.
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Transformer Bench Tester
KVBT
KV Hipot Power Test Equipment Co.,Ltd
Transformer Test System is applied for ex-work and maintenance detecting on various transformers.
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Gas-Filled Hv Testing Transformer
GTU-300KVA/600KV
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. Small and compact dimensions resulting in minimum space requirements. Light-wight components. Rugged construction to withstand long transportation stresses. Direct flanging to the test object. High safety for tester because of encapsulation of all HV parts. Large range of application in conjunction with HV bushing for withstand voltage test. Built-in HV measuring capacitor and coupling capacitor. Built-in HV disconnecting switch to separate multipath test object connector to ensure the safety of HV testing.
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Transformer Short Circuit Impedance Tester
JYW6300
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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AC High Voltage Break Down Tester
High Voltage Breakdown Testers also known as Hipot Testers or Insulation Testers are a necessity for any Transformer testing, Substation equipment testing, Cable testing, Panel testing and testing of various insulating materials. Insulation testing is very important to ensure and maintain the safety of electrical equipments and also for the safety of operator.
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Fully Automatic Transformer Winding Resistance Tester
Measure DC resistance of transformers windings etc. Introduction: The NMC ''TDR'' is a high precision, new generation, light weight large output current and micro-processor controlled tester. This replaces old DC wheat stone bridge and double arm bridge for measurement of DC resistance. ''TDR'' adopts new advanced test current power supply technology, four terminal measurement, digital display of resistance value and test current. ''TDR'' is powered by 220V AC mains single phase supply. The measurements are accurate as the test current is highly stable. High automation is achieved with automatic discharge warning.Principle: The constant current generated is fed to the resistance under test through the current terminals and the voltage drop across the resistance under test is measured and displayed in ohms. A true four terminal measurement is used to eliminate the need for lead resistance compensation.
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Instruments Transformers Tester
Calport 100 Plus
Calmet Smart Calibration Devices
Three phase instrument transformers and electricity meters tester class 0.1 or 0.2. It makes possible CT and PT testing on site or in the laboratory. We recommend a new replacement - TE30 Working Standard
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DC Resistance Tester
GDZRS-20A
GDZRS series Winding DC resistance tester is optimal designed for measuring three phase winding DC resistance of big capacity transformer. It can test three phase winding DC resistances at the same time
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Megohmmeter Insulation Tester
AMIC-30
The AMIC-30 insulation tester is a small portable meter designed to measure insulation resistance in electrical and telecommunications installations, cables, motors, transformers and other equipment. The test voltage can be programmed in steps from 10 V to 1000 V. The instrument can measure both insulation resistance over a wide range (0,1kΩ...100GΩ), and insulation leakage current, capacitance and other parameters. All test results can be stored in the internal memory and sent to a computer via the included wireless USB receiver. The meters are supplied with rechargeable Ni-Cd batteries.
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SMART MEGOHMMETER
MD-1035e
The Megabras MD-1035e is a smart, microprocessor-controlled, 1 kV insulation tester. Besides the conventional measurement of insulation resistances up to 1 TΩ, its advanced features allow to automatically measure both the Polarization Index and Dielectric Absorption Index, thus significantly simplifying testing of transformers.
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Automatic Oil Tester
Theses tester sets are used for determining the di-electric BDV of insulating oils, both new and in-service from transformers, switchgear and other electrical equipments.
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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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Transformer Demagnetization Tester
Weshine Electric Manufacturing Co., Ltd
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.
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Surge Tester (Impulse Winding Tester)
SS6815 / SS6815F
Surge testers (impulse winding tester) is used for testing and check the insulation grade of turns between turns, insulation grade of layers between layers, insulation grade of windings between turns. It is used widely for transformer, current sensor, voltage sensor, relay, contactor, inductor, motor, generator, valve coil, voice coil, etc.
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HV Test Set
Beijing GFUVE Electronics Co.,Ltd.
Used for testing transformer, circuit breaker & switch etc by engineer, for example TTR tester can test transformer turns ratio.
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HIPOT Insulation Testers
Crown high voltage, transformer type hipot insulation testers are safe, easy to use for quick, positive determination of grounds, shorts, and broken wires in motors, transformers and other low voltage equipment or wiring systems. A turn of the selector switch gives a selection of seven voltages; 500, 1080, 1250, 1500, 1750, 2000 or 2500 volts calibrated to +/- 5% accuracy; NEMA recommendation for insulation test is twice normal voltage plus 1000 volts. Since this instrument has a capacity of 2500 volts, it readily accommodates all normal requirements.
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Transformer On-Load Tap-Changer Tester
HTBYC-4000 / 257
Wuhan Huatian Electric Power Automation Co., Ltd.
Mainly used for measurement transformer with load pick up switch transition waveform, transition time, instantaneous transition resistance value, three-phase synchronism and so on.
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Transformer Turns Ratio Meters
Vanguard Instruments Company, Inc.
The ATRT-01 S3 is Vanguard’s fourth generation, micro-processor based, single phase, automatic transformer turns-ratio tester. The ATRT-01 S3 uses the IEEE C57.12.90 measuring method to determine the transformer turns-ratio. The transformer turns-ratio is determined by precisely measuring the voltages across the unloaded transformer windings. The ATRT-01 S3’s measuring circuitry self adjusts before each measurement to ensure turns-ratio accuracy. Two selectable test voltages, 4Vac and 40Vac, offer flexibility in testing different types of transformers.
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Transformer Tester
MOTOMEA Distribution Transformer Test Systems: Routine Testing for Production (EOL) and Quality Assurance (QA). Type Testing at Laboratory (R&D)
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Transformer DC Winding Resistance Tester
HTZZ-20A / 240
Wuhan Huatian Electric Power Automation Co., Ltd.
Measurement transformer around the group and large power inductor dc resistance ideal equipment.
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Current Transformer Testers
Vanguard Instruments Company, Inc.
Performs CT excitation, current-ratio, polarity, and phase angle testsMeasures insulation resistance and winding resistance of the CT seconday windingsMeasures the CT's secondary burdenTest record header information including company, substation name, circuit ID, manufacturer, CT serial number, operator name, and test record-commentsBuilt-in 4.5-inch wide thermal printerPlot Multiple Saturation CurvesStores up to 128 CT test plans and 140 test records internallyUSB, Bluetooth, and USB Flash drive interface
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Instrument Transformers Testers
Calmet Smart Calibration Devices
Calmet offers a variety of Instrument Transformers Testers including the TE30 and the Calport 100.
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DC High Voltage Break Down Tester
High Voltage Breakdown Testers also known as Hipot Testers or Insulation Testers are a necessity for any Transformer testing, Substation equipment testing, Cable testing, Panel testing and testing of various insulating materials. Insulation testing is very important to ensure and maintain the safety of electrical equipments and also for the safety of operator.
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Current Transformer Tester
CTT
The CTT is designed to test the current transformer ratio, Phase shift, Polarity, Excitation, Saturation, Winding resistance and Insulation resistance using the voltage method in compliance with ANSI/IEEE C57.13.1 and IEC 60044-1 standards, where voltage is applied to the secondary X terminals of the current transformer.
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Transformer ON-Load Tap-Changer Tester
WAYZ-2011
Wuhan Sangao Electrical Test Installations Limit Co.
This Transformer on-Load Tap-Changer Tester is acc to Chinese Electric Power Industry Standard, It also can meet the requirement of electrical equipment handover and prevention test standard.To achieve the accurate measurement of on load tap changer's transition time, transition resistance,three-phase synchro nization parameterssyn.It is the best test equipment of on-Load Tap-Changer.
