Showing results: 166 - 180 of 393 items found.
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Power Diagnostix Systems GmbH
Offering easy implementation and convenient data analysis, the ATTanalyzer aids in cost-efficient location and repair of gas-insulated switchgear and transformer defects during comissioning tests.
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HIGHVOLT Prüftechnik Dresden GmbH
Pulse Voltage Test Systems are used for surge testing on transformers, cables, gas insulated switchgear (GIS), arresters, and other high voltage equipment.
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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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GTU-400KVA/400KV -
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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TRT Advanced Series -
IBEKO Power AB
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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STS 4000 -
Altanova Group
STS 4000 is a multifunction substation maintenance & commissioning test system for current, voltage and power transformers, designed to perform primary tests requested in substations commissioning. It allows to perform accurate tests on CTs, VTs, PTs and ground grid.
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STS 5000 -
Altanova Group
STS 5000 is a multifunction substation maintenance & commissioning test system for current, voltage and power transformers designed to perform primary tests requested in substations commissioning. It allows to perform accurate tests on CTs, VTs, PTs and ground grid.
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TESTRANO 600 -
OMICRON electronics
TESTRANO 600 is the world’s first portable, three-phase test system which supports all common electrical tests on single- and three-phase power and distribution transformers for routine and diagnostic testing on-site or during factory acceptance tests (FAT).
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SG2008 -
Shanghai Jiuzhi Electric Co., Ltd.
SG2008 Automatic 12kV Capacitance & Dissipation Factor Test Set is designed to measure dissipation (tgδ) and capacitance (C) in heavy electromagnetic interference environment such as in power plants or substations. Also it can be used in laboratory for high accurate test such asHigh Voltage (EHV) class Bushings, Windings of transformer (1/2/3 windings), shunt reactors, Current Transformer, Capacitor Voltage transformer(CVT), grading capacitors of Circuit Breakers, Surge Arrester and other electrical equipments. The test set is all-in-one structure: including precision digital bridge, 12kV/200mA frequency conversion power unit, reference capacitor (CN), and other electronic circuits. An external power supply can expand the test range. True portability is realized by the lightweight. Simple usage is realized by the full automation. High performance is realized by the digital process.
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MR 8050 -
Schuetz Messtechnik GmbH
With the MR 8050 resistances highly inductive Resistance Meters windings of transformers, motors and reactors can be measured. (range 100 µΩ with 0.01µΩ resolution up to 6 kΩ). The performance of the test objects can be up to 800 MVA or even more. The magnetic loading of a transformer is performed quickly using a high loading voltage (60V). This is important for time critical measurements (cooling curves). The unloading of the transformers core is very fast, very safe, as the energy is total destroyed in the MR 8050.
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RMO-TW Series -
IBEKO Power AB
RMO-TW series is perfect for winding resistance measurements of inductive objects. It is ideal for testing transformer windings (power transformers, distribution, autotransformers) and for on-load tap changer verification. In addition, any RMO-TW transformer ohmmeter & tap changer analyzer can also perform transformer demagnetization.The series contains 4 models, with maximal test currents from 10 A (RMO10TW) to 50 A (RMO50TW). They are fitted in a portable and lightweight metal housing.All transformer ohmmeters from RMO-TW series generate a true DC ripple-free current with automatically regulated measurement and discharging circuit. The injection of current and discharge of energy from the test object are automatically regulated.Three independent channels enable testing of three windings in series. Consequently, this enables measurements of winding resistance in every tap position of an on-load tap changer without discharging between the tests.DV-Win software enables control and observation of the test process, as well as saving and analyzing the results on a PC. It provides a test report, arranged in a selectable form as an Excel spreadsheet, PDF, Word, or ASCII format. Additionally, DV-Win measures and calculates the OLTC transition time, the ripple and the winding resistance for each tap changing operation. The software can also perform the calculations necessary for the “Heat Run” test. Finally, a user can export all results in the form of a report.
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DT Series -
Shimadzu Corp.
ISO Class 1 Compliant Differential Transformer Type Extensometers The ISO 6892-1 standard for tensile testing of metallic materials prescribes Class 1 or higher extensometers, and JIS Z2241 prescribes Class 2 or higher extensometers when measuring withstanding pressure. The DT series includes Class 1 compliant differential transformer type extensometers, which can be used to implement test methods compliant with metal tensile test standards.
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Shanghai Jiuzhi Electric Co., Ltd.
AC voltage and current test system is used to be the electrical test performed on a component (such as, bushings, arrestors, insulating materials) or high voltage products (such as, high voltage cables, power transformers, instrument transformers, gas insulated switchgears, air insulated switchgears, high voltage insulators and etc) to determine the effectiveness of its insulation. For the safety of high voltage transmission , testing insulation integrity is essential for all high voltage products.
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NDB-DOC-3™ -
ndb Technologies Inc.
The NDB-DOC-3™ is a test instrument designed for distribution networks transformers from 5kVA to 3MVA. It can determine the presence of short circuits or open circuits in the distribution transformer primary winding & also short circuits on the secondary winding.The NDB-DOC-3™ is designed to be operated without disconnecting the transformer’s secondary windings from their loads.
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Megger Group Ltd.
The primary test methods used to assess the condition of the active insulation components in transformers and bushings, on site, include:1) power factor/tan δ,2) variable frequency power factor/tan δ (1 - 500 Hz)3) dielectric frequency response (DFR) [a dielectric response method], and4) moisture in oil measurements (for transformers).
