Why You Need The Megger Insulation Tester

By Author: Joseph Aditya
Total Articles: 38
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The Megger insulation tester is used to determine the integrity of the cables and windings, electrical installations, as well as transformers and switchgears or basically any insulation between conductors. The tester is a tool or device that features two leads that can be used to compute the resistance between the conductors.

How to do the test?

Testing the insulation will depend on what type of system or apparatus you are trying to check. First, you disconnect the cable from any of the devices and the ends of these cables do not come into contact with each other. A typical Kyoritsu insulation tester works on 500v or 1,000 volt setting for testing higher voltage. After doing the above steps, you can then connect the Kyoritsu or Megger insulation tester on the two conductors, push the button and then you will get the readings on the resistance.

Testing long-range cables

When testing long-range cables, you can’t depend on a single test. That’s because the currents, which are time-dependent, will run for hours. ...
... So when you move from one area to the next, you will get a different reading every time. In order to resolve the situation, you can use the Kyoritsu insulation tester on different areas and average the value so you can establish a trend using the dielectric or voltage absorption tests.

Why does resistance have to be accurate?

One example of how exactness of the values is important is if the insulation resistance is too low which will cause an opening for power or charge to travel between cores which can damage your expensive equipment. At the very least, it can result to a blown fuse which you can consider it your lucky day if no important component is also fried as a result. The most dangerous part is when you risk electrical shock to personnel which can cause fatalities in some cases when you are dealing with high voltage machines.

Importance of testing

One of the most important reasons why you have to use the Megger insulation tester is security and safety. In working with direct current, you can test the insulation, grounding parameters, and de-energized current so you can avoid electrical shocks. You can use the Megger after the electrical system is installed to ensure integrity of installation. You can also find if he equipment is defective and protect your establishment from electrical-related fires.

Using the Kyoritsu insulation tester, you can also extend the lifespan of your motor machines or electrical systems. This is very important if you are working in a high-stress environment where there are a lot of radiation, chemicals, oil, dust and other particles that can place a stress on your machine.

Author has years of experience of testing and measuring tools and here sharing valuable information on Megger insulation tester device andfFor more details on Kyoritsu insulation tester visits: www.tridinamika.com.