Das Pot Deutsch, aber auch an den Tischen gegeben. - Beispiele aus dem PONS Wörterbuch (redaktionell geprüft)

See details and add a comment. Topfschlagen nt. To add entries to your own vocabulary , become a member of Reverso community or login if you are already a member.

It's easy and only takes a few seconds:. Or sign up in the traditional way. When using ac test voltage, the insulation in question is being stressed most when the voltage is at its peak, i.

For example, for a V-ac voltage, the equivalent dc voltage to produce the same amount of stress on the insulation would be x 1. One of the advantages of using a dc test voltage is that the leakage current trip can be set to a much lower value than that of an ac test voltage.

This would allow a manufacturer to filter those products that have marginal insulation, which would have been passed by an ac tester.

When using a dc hipot tester, the capacitors in the circuit could be highly charged and, therefore, a safe-discharge device or setup is needed.

However, it is a good practice to always ensure that a product is discharged, regardless of the test voltage or its nature, before it is handled.

It applies the voltage gradually. By monitoring the current flow as voltages increase, an operator can detect a potential insulation breakdown before it occurs.

A minor disadvantage of the dc hipot tester is that because dc test voltages are more difficult to generate, the cost of a dc tester may be slightly higher than that of an ac tester.

It can be applied at higher levels without risk or injuring good insulation. Since the dc is free of capacitive division, it is more effective in picking out mechanical damage as well as inclusions or areas in the dielectric which have lower resistance.

One of the advantages of an ac hipot test is that it can check both voltage polarities, whereas a dc test charges the insulation in only one polarity.

This may become a concern for products that actually use ac voltage for their normal operation. The test setup and procedures are identical for both ac and dc hipot tests.

A minor disadvantage of the ac hipot tester is that if the circuit under test has large values of Y capacitors, then, depending on the current trip setting of the hipot tester, the ac tester could indicate a failure.

Most safety standards allow the user to disconnect the Y capacitors prior to testing or, alternatively, to use a dc hipot tester. Please check or correct me if I am wrong.

I am following this website for more than two years. Very informative and useful. Keep going. Exploring more. May you please specify exactly the IEC edition where we can find hi pot test voltage computation..

Hi sir I have a doubt Now I am injecting Dc voltage at diode How to calculate half wave and full wave Proper reason you have 1.

What is the permissible leakage current value for a 11kv cable. If there any formula for calculating leakage current. Therefore, if we use dc test voltage, we ensure that the dc test voltage is under root 2 or 1.

Does anyone have information on how medium voltage shielded cables new installation installed outdoors can build capacitance charge in open air?

The cables run underground; one end comes up parallel feed the steel structure of a switch-yard, and the other end to a utility wooden pole and are braced to a cross-arm — The 15kv terminations are installed and left to be tested on both ends.

The rule of thumb for duration of hipot testing seconds. Is that descripted in a standard like IEC ? I wanted to notify you that Shrikant Kajale Kajale Projects has copied and pasted your article and posted on LinkedIn pretending he wrote it.

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