Asus transformer book t300lac4020h im test pc magazin. Testing transformer3 easy methods to test transformers. Testing transformer is very easy if you follow the procedure explained in this article. Asus transformer book t300 vam prinasa styl a flexibilitu. Transformer on no load condition its phasor diagram. Power transformer factory acceptance test checklist basic. Heres a summary of the current transformer testing paper. Cts are instrument transformers used for converting primary current into a reduced secondary current for use with meters, relays. Transformer on no load condition when the transformer is operating at no load, the secondary winding is opencircuited, which means there is no load on the secondary side of the transformer and, therefore, current in the secondary will be zero. A transformer test may have particular sensitivities to test preparation, test lead connections, and the test environment. The no load is represented by the open circuit, which is represented on the right side of the figure as the hole or incomplete part of the circuit. Geforce gtx 1080 ti is the fastest gaming gpu that delivers 35% faster performance than the geforce gtx 1080. The opencircuit test, or noload test, is one of the methods used in electrical engineering to determine the noload impedance in the excitation branch of a transformer. In this article im only explain on how to test the linear transformer.
Open and short circuit test of transformer electrical4u. Asuss offering in the pcmeetstablet arena is the transformer book chi series, and consists of three superthin convertible laptops. Transformers experience power loss due to load resistance, which you can test with an ohmmeter by touching the meters red and black pins to opposite ends of the transformer s wiring. By using the latest proven sfra test techniques, it is possible to accurately assess transformer condition without dismantling it. Sfra testing on transformers electrical test equipment. Every person has no idea which test to be carried out and which are more important for a long life of a transformer. A fault leading to an open secondary could cause the primary current to overwhelm the insulation, causing the winding to short circuit. This is really an amazing device, and i would not hesitate to get one. Instrument transformers for metering purposes must have a high degree of accuracy up to class 0.
Insulation dielectric test of transformer electrical4u. A 500v insulation resistance test is suitable for 110 400 volt transformers. Ausfuhrlicher test des asus transformer book t300lac4006h intel core i5 4200u, intel hd graphics 4400. The transformer loss is an important performance parameters, on one hand, it indicates the efficiency of the transformer in operation, and on the other hand, it also indicates whether the performance of design can meet the. The variable transformer does not reach the zero position.
A voltmeter, wattmeter, and an ammeter are connected in hv side of the transformer as shown. It also demonstrates how to isolate transformers and how to test for proper noload voltage. Jeho odolny lesteny kovovy povrch a elegantny dizajn na seba strhnu pozornost a. Test connection w 1 synchronous generator 2 test transformer 3 current trans.
The gf106t ct analyzer is mainly used for field testing of p class ct and pt. From this video you will learn how to replace the power button module in your laptop. Do not place your asus transformer book on uneven or unstable work surfaces. The course demonstrates how to identify a faulted transformer.
Feb 18, 2014 the value of the test voltage between phases and between phase and earth is measured at the lv side on an accurate voltage transformer. The following sections of the ansineta standard for acceptance testing specifications for. Sweep frequency response analysis test or in short sfra test can detect efficiently, displacement of transformer core, deformation and displacement of winding, faulty core grounds, collapse of partial winding, broken or loosen clamp connections, short circuited turns, open winding conditions etc. The test items mainly include excitation characteristic, polarity, phase and ratio error. The latest sfra test sets make these techniques more accessible, more convenient and. Current transformers play an important role in the monitoring and protection of electrical power systems. This also includes 1 year international warranty, 1 year accidental damage, 30 day zero bright dot, 2 way free shipping and a 247 technical support. This asus transformer book should only be used in environments with ambient temperatures between 5c 41f and 35c 95f. Asus transformer book t300 is wonderfully tactile, but that goes well beyond just the feel of its beautiful brushed metal finish.
Ive scoped out some of the t300 android covers but it look like theyre just a bit too different. Even with very accurate test equipment, results can give an inaccurate representation of an assets health. Test asus transformer book t300lac4006h convertible. The test and assessment of transformers is a complicated task. The generator is made of a variable transformer followed by a transformer. Asus transformer book t300la general discussion the forum for discussions questions specific to the t300. At the conclusion of this course, participants should be able to identify a faulted singlephase transformer. To avoid such type of problems while inspecting transformer find the below c hecklist for transformer factory inspection. Transformers experience power loss due to load resistance, which you can test with an ohmmeter by touching the meters red and black pins to opposite ends of the transformers wiring. For those of you who like the idea of having a tablet and notebook in one physical device, the asus transformer book t300 chi is a neat example of what you should be looking for. How to use an ohmmeter to test an ac transformer sciencing. Asus transformer book flip tp300lac4032h notebookcheck. Any returned computer that is damaged through customer misuse, is. Because vendor provides test list as per his suitability.
In this test we confirm the ct secondary connection. Use small jumper to short the ct secondary from ct box, the measurement will be gone at panel. A considerably lower price and considerably less features. Power transformer factory acceptance test checklist. Asus transformer book t300la c4001h hd graphics 4400, core i5 4200u. Back to the basics current transformer testing ct as test equipment becomes more sophisticated with better features and accuracy, we risk turning our field personnel into test set operators instead of skilled field service technicians. The resistance of an alternating current ac transformer is held within the wires wound around its core. It is mainly used for field testing of p class ct and pt. The minimum insulation resistance value accepted in each of the above tests is 2m. Separate source voltage withstand test of transformer this dielectric test is intended to check the the ability. Sfra testing on transformers dismantling a power transformer to determine its condition is hardly ever a practical possibility. Asus transformer book t300la dh51t tablet with keyboard. Portable ct pt analyzertransformer testgfuve electronics. Current transformer testing electrical test equipment.
Asus transformer book t300la c4001h transformer book serie procesador. Home products transformer testportable ct pt analyzer. This test is very reliable for condition monitoring of physical condition of transformer windings. Windows 8 is designed with touch in mind and a dedicated asus human computer interface team has helped make it even more intuitive to use, with features like a responsive multitouch display and a large touch pad. May 12, 2017 it is essential to inspect and test current transformers and their connected instruments at regular intervals. Ausfuhrlicher test des asus transformer book t300fafe001h intel core m 5y10, intel hd graphics 5300, 12. Hence, it is essential to inspect and calibrate those instrument transformers at regular intervals. Asus transformer book t300ladh51t haswell now available. The connection diagram for the short circuit test on the transformer is shown in the figure below. Nov 17, 2019 the dielectric test of transformer is generally performed in two different steps, likewise, separate source voltage withstand test and induced voltage withstand test of transformer, which we have discussed one by one below.
Pc portable asus transformer book tx300cac4006h pc convertible smart pc processeur intel core i53317u a 1,70 ghz ecran tactile full hd,3 16. Do not leave your asus transformer book on your lap or near any part of your body to prevent discomfort or injury from heat exposure. Section 7 of the ansineta standard for acceptance testing specifications for electrical power equipment and systems may be reproduced and used on a cut and paste basis for the particular type of equipment to be tested. The need for a comprehensive current transformer testing regime is evident when the alternative is considered. The purpose and significance of transformer no load test and load test. This video shows asus transformer book t300 power button replacement. Cts are instrument transformers used for converting primary current into a reduced secondary current for use with meters, relays, control equipment and other instruments the importance of instrument transformer tests is often underestimated. The purpose and significance of transformer no load test. The value of the test voltage between phases and between phase and earth is measured at the lv side on an accurate voltage transformer. A low voltage of around 510% is applied to that hv side with the help of a variac i. Im keeping an eye out for a cover just for the table part of my asus transformer book t300la.
Its a 2in1 device with a firm tabletfirst design that runs intels core m cpu. Insulation resistance test between windings the minimum insulation resistance value accepted in the test is 2 m. These are some common tools used to work on this device. All necessary steps presented here in this video guide. Poweron selftestpost this chapter shows you how to use post to change the settings of your asus transformer book. Standard for acceptance testing specifications for electrical. Generally there are two types of transformer in the market i. T2000 test set for testing cts, pts primary injections. The winding of transformer may be subjected to mechanical stress.
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