IEEE Recommended Practice For Testing Insulation Resistance Of Electric Machinery Defines a recommended procedure for measuring insulation. The Institute of Electrical and Electronics Engineers (IEEE) standard for insulation resistance testing of motor and generator windings that was published in Content Description. Revision Standard – Active. The dc voltage tests procedures for the measurement of the insulation resistance and polarization index of.
|Published (Last):||20 November 2007|
|PDF File Size:||19.88 Mb|
|ePub File Size:||8.64 Mb|
|Price:||Free* [*Free Regsitration Required]|
The strategic plan of IEEE is driven by an envisioned isee iieee realizes the full potential of the role IEEE plays in advancing technology for humanity.
Enter your account email address to request a password reset: The IEEE Brand Identity Toolkit explains the basic usage rules for all corporate identity elements and how to utilize them to create a powerful and consistent communications pieces.
For large machines with high capacitance, the inrush current can be high.
You can change your cookie settings through your browser. If you like 433-2013 setup a quick demo, let us know at support madcad. Land Use and Development. Megohm measurements may be tracked over time to help determine when ieee motor or generator should be reconditioned.
What’s new in the IEEE 43 insulation resistance testing standard? | EASA
From this formula, ieee is very ieeee that the insulation properties drop precipitously as the temperature rises, and we all know what happens to over-heated motors.
Note that these tests can be done to voltages lower than the normal DC Hipot ieee voltages to find out if there is ieee current. After 1 minute with a random wound DUT, or minutes with a form wound DUT, this is typically the only current remaining unless the insulation is weak ieee dama There may be an increase in the surface leakage current on machines where a stress-control coating has been applied to the end-windings.
The association is chartered under this name and it is the full legal name.
Safety considerations Insulation resistance testing involves the application of high direct voltages to machine windings. All others, please contact us at info madcad.
The ground insulation certainly can be weak with conduction current flowing through the ieer to ground, but this is often dwarfed by the surface currents. The insulation resistance of a rotating machine winding is a function of the type and condition of the insulating materials used, as well as their application technique.
This current is usually zero if the motor is new or undamaged. There were no books found for the applied search filters.
By definition, the insulation resistance is the quotient of the applied direct voltage across the insulation divided by the total resultant current at a given time.
The ground insulation certainly can be weak with conduction current flowing through ieeee insulation to ground, but this is often dwarfed by the surface currents. Get a Quote Careers Exhibitions. I T — Total current: Usually, for clean and dry rotating machine insulation, the insulation resistance between about 30 s and a few minutes is primarily determined by the absorption current.
The first component is due to the polarization of the impregnating materials because the organic molecules, such as epoxy, polyester, and asphalt, tend to change orientation in the presence of a direct electric field.
What’s new in the IEEE 43 insulation resistance testing standard?
IEEE is led by a diverse body of elected and appointed volunteer members. Users will often go directly to a Hipot ieee IEEE is the world’s largest professional association dedicated to advancing technological innovation and excellence for the benefit of humanity.
Register for a trial account. The governance structure includes boards for operational iere as well as bodies representing members in the 45 Societies and technical Ieee and ten worldwide geographic regions.
This time interval is based on the R resistiveL inductiveC geometric capacitiveand absorptive characteristics of the circuit during charging time of the application of the voltage and discharging elapsed time since the removal of the voltage source 43-2031 subsequent grounding of the winding under test.
In particular, this standard describes typical insulation problems detected ieee the insulation resistance test.
IEEE 43-2013 PDF
Dirt, in this case, includes particles, oil, grease, moisture etc. Get a Quote Careers Exhibitions.
Modern types of filmcoated wire, as well as epoxy-mica or polyester-mica insulated stator windings, may approach ieed constant value of insulation resistance in 4 min or less.
Copyright Compu-tecture, Inc. Who knows, maybe no better ifee all? After the applied direct voltage is removed, a suitable discharge circuit should be ueee see Clause 4. Enter your account email address request ieee password reset: FORMAT Single User Subscription Site License Subscription BOOKS All Books PACKAGES All Packages EDITION to PUBLISHER. No items in cart.