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Impulse voltage testing for transformers is a necessary test in order to confirm that these important electrical components will be safe and reliable. High voltage lightning impulse testing of transformers enables manufacturers to determine how well they will respond to sudden power surges like those that occur due to lightning. This testing is important to help uncover any deficiencies or any vulnerabilities as it pertains to the insulation system of the transformer that might cause some kind of failure whether a malfunctioning failure or even catastrophic. We will take a look at the benefits of lightning impulse... Read more about Lightning Impulse Testing and Where Dynalectric Company Can Deliver Even More...
There are a number of advantages to lightning impulse testing on transformers which can enhance the overall quality and functionality of this crucial piece of electrical equipment. The most significant benefit of such testing is its ability to replicate field conditions, e.g. lightning strikes, in a controlled and repeatable way. By exposing transformers to high-voltage impulses, manufacturers can test whether they are able to resist and endure excessive conditions. This provides visibility of possible weak-insulation or flawed transformer system, that improvements can be made prior to causing expensive downtime or safety issues. Lightning Impulse Testing can also assist in demonstrating adherence to industry standards and regulations and instil confidence with manufacturers and end users that the transformers are both safe and reliable.
When selecting transformers with dependable lightning impulse test results, reputable manufacturers with a history of quality and reliability will need to be considered. ... Some franchises such as Nankee dedicate to the transformers manufacture that receives different tests of stresses with even lightning impulse test in order to guarantee its operation and security. Nankee’s transformers are manufactured to the most stringent industry requirements and we have extensive test data that proves their immunity from lightning type surges. By selecting transformers from well-respected brands such as Nankee you can trust the robustness and performance of your electrical products, safe in the knowledge that they have been tested under tough conditions.
Nankee's transformer impulse testing is a key method to detect the possible problems that could worsen transformer's performances and shorten its life. The strength of insulation of the transformer is one common issue that this test focuses on. Lightning impulses can produce high voltage peaks with consequences on the insulation of the transformers which can result in short-circuits and defective functioning. Nankee is able to assess the insulation level and any insulation defects that must be dealt with, by the application of a lightning impulse test on transformers.
Nankee is leading the way in applying the advances of lightning impulse testing at transformers. One notable offering is the utilization of digital simulation software for generation of lightning impulse like waveforms. This provides Nankee with the ability to test transformers under a variety of lightning impulse conditions, and establish how well they perform in various situations. Nankee is able to utilize digital simulation for better prediction of potential problems and design transformers for more optimal performance.
Also achieved are novel techniques to measure and record test data during lightning impulse testing. Nankee employs fast data acquisition systems to keep track of transformer reaction on the field lightning impulses. This enables Nankee to collect more data on transformer performance and make adjustments that accurately lead to greater reliability and longevity.
All transformers should be subjected to lightning impulse tests at regular intervals in order to ensure their reliable operation in service. Testing transformers every three to five years is one of the recommendations made by Nankee to help identify any potential problems and avoid sudden failures. Transformers also need to be checked after routine large power plant maintenance or repair work, to ensure they are functioning properly.
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