Understanding VFD De-rating
Автор: U.S. Drives and Automation Training
Загружено: 2023-03-06
Просмотров: 1722
Описание:
The term de-rating a drive implies that a VFD is intentionally oversized to be used in an application that requires less power. If a drive isn't properly oversized and de-rated when appropriate it can result in your your drive overheating or even pre-mature failure! In this video, you will learn the different reasons why you would de-rate a drive as well as guidelines on how much the drive should be oversized by to ensure your VFD will work in your application for years to come.
00:00 Introduction
00:38 Agenda
01:05 De-rating Definition and explanation why
03:37 Altitude
11:54 Temperature
15:37 Temperature and Altitude Combined
18:53 Carrier or Switching Frequency
23:09 Input Voltage
26:29 Combined De-rate example
30:35 Summary
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