Measuring Inrush Current with an Oscilloscope, Circuit Breakers and Clamp Meters
50.7 هزار بار بازدید -
9 سال پیش
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In this video I use an oscilloscope to measure the inrush current caused by an induction motor starting with a variable speed drive (VFD). I do this to show some of the challenges clamp meters can face getting this measurement as an RMS reading when there is distortion of the waveform.
I also explain how an electrothermal circuit breaker works by preventing overloads and short circuits.
* Circuit breaker instantaneous tripping current, should it be RMS or peak current?
Equipment used:
* Agilent / Keysight DSO-X 2000 Oscilloscope
* HT Instruments HT9022 Power Clamp Meter
* Yokogawa CW10 Power Clamp Meter
* Fluke 43B Power Quality Analyzer
* Thermal magnetic circuit breaker
Useful links:
Circuit Breakers - How they Work, What's Inside :
Circuit Breakers - How they Work, Wha...
Circuit Breakers:
http://en.wikipedia.org/wiki/Circuit_...
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Music clip from Youtube Music Library - Phase Three by Huma-Huma
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http://astore.amazon.com/m0711-20
In this video I use an oscilloscope to measure the inrush current caused by an induction motor starting with a variable speed drive (VFD). I do this to show some of the challenges clamp meters can face getting this measurement as an RMS reading when there is distortion of the waveform.
I also explain how an electrothermal circuit breaker works by preventing overloads and short circuits.
* Circuit breaker instantaneous tripping current, should it be RMS or peak current?
Equipment used:
* Agilent / Keysight DSO-X 2000 Oscilloscope
* HT Instruments HT9022 Power Clamp Meter
* Yokogawa CW10 Power Clamp Meter
* Fluke 43B Power Quality Analyzer
* Thermal magnetic circuit breaker
Useful links:
Circuit Breakers - How they Work, What's Inside :
Circuit Breakers - How they Work, Wha...
Circuit Breakers:
http://en.wikipedia.org/wiki/Circuit_...
------------------------------------------------------------------------------------------------------
My website and forum:- http://www.mjlorton.com
Donations and contributions:- http://www.mjlorton.com
My techie channel MJLorton - Solar Power and Electronic Measurement Equipment - mjlorton
My Techie Amazon Store: http://astore.amazon.com/m0711-20
My other channel VBlogMag - For almost any topic under the sun! - vblogmag
My VBlogMag Amazon Store: http://astore.amazon.com/vblogmag-20
------------------------------------------------------------------------------------------------------
===================================================
Video sponsor, Pass Ltd - their websites:
At checkout use the discount / promotion code "mjlorton" for 5% off.
http://www.tester.co.uk/?cmid=QmhzQjc... - Test Equipment and Test-meter suppliers and
http://www.calibrate.co.uk/?cmid=Qmhz... - Calibration and service of test equipment
===================================================
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
Bitcoin (BTC) Donations: 1K7PeF55e7ssE7W3WVCoa7c4j2PHzy6ASv
$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
**********************************************************************************
Music clip from Youtube Music Library - Phase Three by Huma-Huma
**********************************************************************************
9 سال پیش
در تاریخ 1394/02/10 منتشر شده
است.
50,797
بـار بازدید شده