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  1. ... of that type that has to be controlled and safe uses a PTC materials as elements (resistance goes up dramatically with temperature...

    2 Answers · Science & Mathematics · 31/10/2011

  2. temperature protection is acheived by PTC thermistors. under voltagge and phase failure protection by starter. phase reversal protection by phase descriminator.

    2 Answers · Science & Mathematics · 17/06/2012

  3. Solidworks, Inventor, PTC, Catia, NX are someof the most used.

    3 Answers · Science & Mathematics · 26/02/2008

  4. ...protection devices: 1,) Fuse 2.) Circuit Breaker 3.) PTC Thermistor - limits current by increasing its resistance...

    4 Answers · Science & Mathematics · 30/06/2009

  5. .... The thermistor relay operates on the signal from PTC thermistors. The thermistors are fitted in...

    3 Answers · Science & Mathematics · 20/11/2013

  6. ...thermistor, but a thermistor is not necessarily an NTC (it could also be a PTC). A 4.7k NC means a certain, more or less standard (usually less...

    2 Answers · Science & Mathematics · 03/01/2008

  7. ...undesirable. Hewlett used an incandescent bulb as a positive temperature coefficient (PTC) thermistor in the oscillator feedback path to limit the gain. The resistance of light...

    1 Answers · Science & Mathematics · 05/03/2011

  8. ...student edition (I don't believe this product expires at all): http://www.ptc.com/appserver/mkt/educational/program.jsp?&im_dbkey=86793 ANSYS: A ...

    3 Answers · Science & Mathematics · 18/05/2010

  9. ...order temperature coefficient of resistance . Practical Applications: PTC thermistors can be used as current-limiting devices...

    9 Answers · Science & Mathematics · 29/01/2007

  10. ...equipment to perform the test. The second rating system is PTC, which I find is actually a little conservative for where I am...

    5 Answers · Science & Mathematics · 30/10/2012

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