Showing results: 31 - 45 of 162 items found.
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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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WABC -
Wuhan Sangao Electrical Test Installations Limit Co.
Acc to IEC and Relevant national standard, In the power transformer production, transfer and user test process, Transformer ratio test is necessary project, This can be used for quality supervision of transformer factory and the use process, prevent the transformer winding inter turn short circuit, open circuit, connection error, pressure regulating switch failure or contact fault.So our company development and production of automatic ratio tester in the original basis according to the user's site using requirements , make the operation more convenient, complete function, stable and reliable data, the testing speed is greatly improved.To meet the needs of all kinds of small medium and large transformer ratio test.
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IBEKO Power AB
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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JY6601 -
Kingrun Instrument Co., Ltd.
JY6601 transformer oil insulating tester adopts completely new electromagnetic compatibility concept(EMC) which technology which will keep breakdown energy in a very low level,that will avoid pollution to oil sample during testing and make sure the test result are accurate and reliable.
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JY6611S -
Kingrun Instrument Co., Ltd.
JY6611S transformer oil breakdown tester adopts completely new electromagnetic compatibility concept(EMC) which designed to avoid tester crash accident during testing, and also can still work well in high magnetic field.JY6611S also use advanced voltage breakdown control technology which will keep breakdown energy in a very low level, that will avoid pollution to oil sample during testing and make sure the test result are accurate and reliable.
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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.
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KRI 9310 -
Kingrun Instrument Co., Ltd.
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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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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SFH141 -
Shanghai Launch Electric Co., Ltd.
This instrument is especially designed to test volt-ampere characteristics, transformation ratio and polarity differences for relay protection testing current transformers. It is also used to judge the polarity of transformers, as a multi-functional instrument with excellent cost performance. The instrument takes use of transformer with special winding method, as well as high efficiency, low consume materials.
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JYP -
Kingrun Instrument Co., Ltd.
The instrument detects the amplitude-frequency response characteristics of each winding of the transformer, compares the detection results vertically or horizontally, and judges the possible deformation of the transformer windings according to the degree of change in the amplitude-frequency response characteristics.
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Kingrun Instrument Co., Ltd.
1. Suitable for all transformers below 240MVA heat run test and winding resistance testing.2. Printing heat run data automatically.3. With double power supply, can test high voltage side and low voltage side simultaneously and test any operation respectively.4. With anti breakage protection function of inductive test items.
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JYR50B -
Kingrun Instrument Co., Ltd.
JYR-50B series tester use third generation constant-current power supply, high efficiency with longer working life, output voltage is high (DC30V) that make faster charging speed, measurement scope is wide and equipped with colorful LCD screen.
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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.