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Transformer Turns Ratio
measures a transformer's number of primary winding turns to it's secondary turns.
See Also: Winding, Transformer Turns Ratio Testers
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Transformer Turns Ratio Tester
HDBB
HD Power Test Equipment Co.ltd
HDBB Transformer Turns Ratio Tester is very essential to find out the right ration of transformer which has the corresponding on its rated voltage in primary and secondary.HDBB Transformer Turn Ratio Tester is used to test turn ratio and voltage ratio of regular transformer .
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Transformer Turn Ratio Tester
KVBB-II
KV Hipot Power Test Equipment Co.,Ltd
KVBB-II Transformer turn ratio tester is used to check turn ratio of transformer, tap switch situation, whether transformer interturn is short circuit and transformer can run in parallel or not.
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Transformer Turns Ratio Testers
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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Transformer Turns Ratio Meter
TTRM 302
SCOPE introduces state of the art precision three phase Transformer Turns Ratio Meter (TTRM ) designed for field testing as well as factory testing of power transformers, instrument transformers and distribution transformers of all types. Along with turns ratio, this light weight and reliable instrument measures ratio deviation, phase angle deviation, magnetizing current and detects tap-position of single as well as three phase transformers in charged switchyard condition. The instrument has facility to automatically detect vector group of all majority configurations available. The differant AC voltage selection offers high accuracy in measurement.
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Transformer Turns Ratio Meter
TTRM 301
SCOPE introduces state of the art precision three phase Transformer Turns Ratio Meter (TTRM ) designed for field testing as well as factory testing of power transformers, instrument transformers and distribution transformers of all types. Along with turns ratio, this light weight and reliable instrument measures ratio deviation, phase angle deviation, magnetizing current and detects tap-position of single as well as three phase transformers in charged switchyard condition. The instrument has facility to automatically detect vector group of all majority configurations available. The differant AC voltage selection offers high accuracy in measurement.
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Transformer Turns Ratio Meter
TTRM 101
SCOPE introduces state of the art precision single phase Transformer Turns Ratio Meter (TTRM ) designed for field testing as well as factory testing of power transformers, instrument transformers and distribution transformers of all types. TTRM 101 measures only turns ratio where as TTRM 102 along with turns ratio, measures ratio deviation, phase angle deviation, magnetizing current and detects tap-position of single phase transformer in charged switchyard condition. The range of AC voltage selection offers high accuracy in measurement.Both the instrument have in-built TFT display with touch screen and thermal printer. The user friendly, simple instrument makes the testing more easy. With the touch keypad it is possible to enter required DUT information.The ratio results are displayed with % error. Internal non-volatile memory gives the provision of storing test results.Further data can be downloaded to PC or copied to memory stick through USB port provided.
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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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Transformer Turns Ratio Tester
CXBC-901
Shenzhen Chuangxin Instruments Co., Ltd.
Transformer Turns Ration Tester is applied to measure the voltage ratio and group testing of the three or single phase transformer. All the test results could be printed by the micro printer or saved in the tester.
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Transformer Turns Ratio Meter
TTRM 102
SCOPE introduces state of the art precision single phase Transformer Turns Ratio Meter (TTRM ) designed for field testing as well as factory testing of power transformers, instrument transformers and distribution transformers of all types. TTRM 102 along with turns ratio, measures ratio deviation, phase angle deviation, magnetizing current and detects tap-position of single phase transformer in charged switchyard condition. The range of AC voltage selection offers high accuracy in measurement.Both the instrument have in-built TFT display with touch screen and thermal printer. The user friendly, simple instrument makes the testing more easy. With the touch keypad it is possible to enter required DUT information.The ratio results are displayed with % error. Internal non-volatile memory gives the provision of storing test results.Further data can be downloaded to PC or copied to memory stick through USB port provided.
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Transformer Turn Ratio Instrument
ART-3D
The ART-3D is high precision instrument designed to measure ratios, magnetization currents, phase-shifting in power transformers, distribution transformers, potential and current transformers, in conformity to IEEE C57.12.90 and CEI/IEC 60076.
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Transformer Turns Ratio Tester
CX-BY
Shenzhen Chuangxin Instruments Co., Ltd.
It is to test voltage ratio, vector, polarity, ratio error of current transformer and voltage transformer.
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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 Turns Ratio Meter XTRM-3
XTRM-3
The Motwane Manufacturing Company
Your product description goes here. Motwane’s transformer turn ratio meter XTRM-3 is a new generation fully automated kit to measure turns ratio, voltage ratio, ratio error, phase displacement & excitation current in a transformer. It automatically detects the transformer vector group. Its user-selectable test voltage feature provides for testing various ratings of power transformers.
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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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Motwane Transformer Turn Ratio Meter
The Motwane Manufacturing Company
Your product description goes here.
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ATTR Auto Transformer Turns Ratio Tester
Chongqing Assen Power Equipment Co., Ltd
Transformer turns ratio tester is a new type of fully automatic tester that uses modern electronic technology to measure the ratio of single-phase and three-phase transformers, and does not require any manual “zero” balance.
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Fully Automatic Transformer Turns Ratio Tester
DY100
DY-100 is a new generation, fully automatic, transformer turns ratio tester designed for measuring ratio, ratio error of single and three phase transformers. The entire test is done automatically and quickly. Operator enters the test parameters and DY-100 tak es over; powers up the voltage, balances the bridge, takes the readings, and displays the results on the LCD screen. Prints testresults through its built-in printer. A key feature of the DY-100 is automatic measure transformer connection group. LV and HV windings are automatically isolated once the measurement is over. True portability is achieved by the lightweight (only 10 kg), single unit design housing the DY-100. The DY-100 is encased in an aluminum alloy cabinet.
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Multi-Function Transformer Turns Ratio Tester (TTR)
HTBC-V / 252
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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Transformer Testing Equipment
Offering you a complete choice of products which include Automatic Transformer Turns Ratio Instruments (ATRI- 3), Automatic Transformer Turns Ratio Instrument (ATRI-201), VTRI-2000 ( Transformer turns ratio instrument ), Current Transformer Test Set (CTC-1), Potential Transformer Tester ( PT Tester ) and Current Transformer Tester ( CT Tester ).
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Transformer Testing
Haomai Electric Power Automation Co.,Ltd.
1)Test Standard:IEC60076 & IEEE C57.12.90 2)Voltage ratio measurement of transformer 3)Turns ratio measurement of transformer 4)Group vector measurement of transformer
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DIGITAL TURNS TESTER & DIGITAL LCRTZ METER (TURNS-LCRTZ)
Coil Turns Tester , Turns Tester , Turns Counter , Coil Turns Counter , Toroidal Turns Tester , Bobbin Turns Tester , Coil Turns Tester , Ratio Turns Tester / Counter for Toroidal Coils, Current Transformer
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Automatic Transformer Tester
SS3250 / SS3252 / SS3302
Automatic transformer test instrument is a precision test system, designed for transformer production line or incoming/outgoing inspection in quality control process, with high stability and high reliability. With the enhanced capability in turn ratio measurement, they can solve the measuring problems of low coupling coefficient, transformer's turn ratio and turn number with more precise measurement.
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Turns Ratio Testing
The transformer turns ratio test, or TTR test, confirms that the transformer has the correct ratio of primary turns to secondary turns. Using this test correctly can help to identify tap changer performance, shorted turns, open windings, incorrect winding connections and other faults inside transformers. Megger’s range of TTR testers are robust to withstand the harsh conditions that some transformer testing in. The range includes varying features to simplify and speed up testing as well as 3 phase TTR testers and PT and CT TTR testers.
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Transformer Ratio Meters
Handheld Turns Ratio & Winding Resistance Tester TWR-H
TWR-H is a handheld, battery operated, fully automatic test set specially designed for turns ratio, phase shift, excitation current and winding resistance measurements of transformers. It can also perform demagnetization of these transformers. Transformer turns ratio is determined by applying AC voltage across high voltage winding, accurately measuring AC voltage across the corresponding unloaded transformer winding, and then displaying the ratio of these voltages. User can enter a transformer’s nameplate voltages, so that turns ratio deviation can be calculated. This feature eliminates any error otherwise caused by an operator’s manual calculation. TWR-H compares measured turns ratio with the nameplate ratio and prints out the % of error for each test. Transformer winding resistance is determined by injecting DC current through a winding, accurately measuring DC voltage across the winding, and then calculating resistance as the ratio of voltage and current. The device generates true DC ripple-free currents. Both the injection of the current and the discharge of energy from transformer magnetic circuit are automatically regulated.
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Turns Ratio Meter
Model TRM200
Turns Ratio Meter Model TRM200 is widely used in transformer industry in manufacturing and repairing service. It directly display the ratio of LT turns & HT turns. It is capable to measure turns ratio till 1:1200. Turns ratio meter is designed to be a rugged and reliable. It is equipped with stable 250mA source. The design is based upon in-house invented & patented technology. TRM200 has also option for 1amp current source on demand.
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CT PT Tester
HTCT-300 / 357
Wuhan Huatian Electric Power Automation Co., Ltd.
Measurement of current voltage transformer excitation characteristics, excitation parameters, turns ratio, polarity coil resistance, etc.
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Acoustic Imager
Can be used for quick on-site testing of current transformers in metering installations. They are designed and manufactured to test transformers’ primary current, secondary current, and turns ratio and identifies phase type and polarity.
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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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Handheld Turns Ratio & Winding Resistance Tester
TWR-H Series
Handheld TWR-H device is DV Power single-phase instrument designed for measuring transformer winding resistance and turns ratio.The instrument has two output DC sources for measuring transformer winding resistance. The first DC source can output up to 2 A DC and is used for injecting current to the transformer’s high voltage winding. The second DC source can output up to 10 A DC and is used for testing the transformer’s low voltage winding. This is especially useful when measuring winding resistance of distribution transformers. These transformers have large turns ratio and therefore a big difference between resistances of high voltage and low voltage windings. Upon the winding resistance test, it is also possible to demagnetize the transformer core. The demagnetization process is completely automatic and safe.Together with the turns ratio, the instrument also measures excitation current and phase shift. This enables detecting transformer core or winding turns failures which cannot be spotted by measuring turns ratio only. The instrument can output test voltage up to 40 V AC for this test, but it can also output a very low test voltage of 1 V AC which is necessary for turns ratio verification of the majority of current transformers.TWR-H is powered by an internal Li-Ion battery. Up to 100 tests can be performed with a fully charged battery.
