Hipot test procedure

He is Presently associate with one of the leading business group as a Deputy Manager at Ahmedabad,India. Any special care required for operators while handling this test? Some of the current flows because of the capacitance from wire to wire.

Uploader: Bakasa
Date Added: 20 January 2014
File Size: 22.38 Mb
Operating Systems: Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
Downloads: 92117
Price: Free* [*Free Regsitration Required]





This shape of waveform is called a "sine wave.

How DC Hipot Tests Work

The main advantage of the dc test is DC Voltage does not produce harmful discharge as readily occur in AC. The current flowing through the insulation resistance is proportional to the voltage. The surface conduction current runs over the end winding surfaces hilot the insulation.

The voltage and measured current value are used to calculate the resistance of the insulation. Rick Oct 27, Girish R Nair Jul 27, Normally a spam is not supposed to recognize such thing, and will not be able to proceed further. The DC voltage potential in the windings is rapidly raised to a predetermined level, or raised in steps up to this level, depending on what test method is used.

Any help would be appreciated!

proceduer Discuss Proposed since January Click here for more information. The position and spacing of the wires in a bundle will change the capacitance.

For a sine wave: Anbu Dec 18, A hipot test can be very useful in helping you develop a process that builds high quality cables and wire harnesses. Current is required to elevate its voltage potential.

This is often referred to as surface leakage current.

What is HIPOT Testing (Dielectric Strength Test)?

If I get less value in IR test after hi-pot then before hi pot what could be the reason. James Mazarello Aug 29, Jonhny Magtulis Ttest 15, Figure 5 is a simple calculator that allows you to enter the hipot voltage, resistance, and capacitance and it will show the voltage, total current, resistive current, and capacitive current.

Does anyone have information on how medium voltage shielded cables new installation installed outdoors can build procedrue charge in open air? It's like the average of the rectified voltage except it takes the average of the square of the voltage, then takes the square root.

Surat Apr 06, Experiment with the Resistance and Capacitance Figure 5 is a simple calculator that allows you to enter the hipot voltage, resistance, and capacitance and it will show the voltage, total current, resistive current, and capacitive current.

By using this site, you agree to the Terms of Use and Privacy Policy. To learn more see the Hipot Step Voltage Test page. The hipot test is a nondestructive test that determines the adequacy of electrical insulation for the normally occurring over voltage transient.

Adrian Sep 17, Articles lacking sources from August All articles lacking sources Articles to be merged from January All articles to be merged Articles with Curlie links. What hpot an arc? Generally there are 50 or 60 complete cycles of the alternating voltage each second.

Usual problem, but still I am not procedurd there is any acceptable leakage current value is there during Hi-pot test, please share with us. Most safety standards allow the user to disconnect the Y capacitors prior to testing or, alternatively, to use a dc hipot tester.

2 thoughts on “Hipot test procedure”

Leave a Reply

Your email address will not be published. Required fields are marked *