How to Test Voltage Transformers

When it comes to high voltage equipment, safety is always an issue. Whether you are using transformers of a small kind in the workplace, or we are talking about larger devices for power supply, there is always a danger where electricity is concerned. Also, transformers need to be as efficient as possible; there will always be some loss of energy between points, but keeping that to a minimum is beneficial.

Testing voltage transformers is not something that should be done by the layman. Anyone who gets involved with machinery or devices such as this should have a clear understanding of what is involved, how things work, and why it is important to test such transformers on a regular basis. After all, performance is an issue where energy loss is concerned, and transformers are a vital part of any circuit.

The Testing Procedure

So, where do you start when it comes to testing a voltage transformer? To begin with, there are certain visual checks that you should make before you move on to anything more complex. For example, you need to check all the ratings – they will be there on a plate attached to the transformer – to make sure they are the same as the information you are given. You can also do a visual check to make sure everything is in place, and nothing is obviously loose or damaged.

Leakage is a problem with some transformers that use an oil lubricant; this will be easy to see and should be noted for attention. Remember, do not attempt a repair of a voltage transformer unless you are properly qualified and experienced, and have the right tools. Once you have completed a visual check, to make sure all the connections are tight, everything is where its should be, and nothing looks out of place, you need to move on to the next phase, which is checking the actual operation of the transformer.

Test and Calibration

One of the problems with testing voltage transformers is that of accuracy. You need to check that the transformer is working correctly and providing the most accurate transfer of energy required. This involves checking the resistance units, making sure the grounding is correct, and being able to understand where things are not as they should be. This is why we would suggest it is best to bring in an expert who has the knowledge, experience and qualifications to correctly test and calibrate the voltage transformer in question, like those at Powerpoint Engineering.

When it comes to important and potentially dangerous equipment, among which the voltage transformer can be classed, it is essential that everything is absolutely right. This is true not just of the way the equipment is put together, but also how accurate it is. Calibration is a major part of efficiency, in both measurement and output terms, and a correctly maintained, calibrated and operational voltage transformer will provide much better results than one that is not fine-tuned.

It is best to leave the maintenance, testing and calibration of items such as this to the experts for various reasons. Firstly, they have the knowledge and experience to know what they are looking at, where the problems may be, and how to deal with them in the best possible way. Secondly, they have in place procedures that are designed to make sure things are as safe as possible at every juncture.

If you are in charge of voltage transformers and need to find people to test and calibrate them, we recommend you contact the experts, and it will make your life a lot easier and save you money in the long run.