Hi guys! In this video I installed a DPS, Digital Phase Shifter on a DoItYourself demo board that I made, and tested it with a Hioki CM328601 AC Clamp Power Meter. The DPS is a singlephase to threephase converter. It allows you to run a 3phase motor out of the available singlephase power supply. The DPS unit model is an MYPS2, rated for 1Hp, 220V 3phase, which is a match for my 1Hp, 3phase Meiji induction motor. The objective of installing the DPS on a demo board was for me to have 3phase voltage available for testing purposes, not necessarily for motor control. The DPS did output 3phase voltage, but it has certain limitations which I discussed in the video. I provided timestamps for easy navigation to topics/chapters. The DPS device is made in Korea.
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timestamps
00:29 Function of the DPS
01:00 Simple design no moving parts/switches
01:49 DPS rating must match motor rating
02:00 Retail box and user's manual
02:22 DPS connection on demo board
03:07 Time lapse making the DPS D.I.Y. demo board
05:02 DPS use for 3phase motors only
05:26 Q&A note 1 single phase output without motor connected
05:55 Q&A note 2 unbalanced output voltage with motor running but not loaded
06:16 using Hioki CM3286, testing output voltage without motor (open ciircuit)
07:58 using Hioki CM3286, testing output voltage with motor running unloaded
10:01 actual output voltage unbalance, unloaded motor
10:39 using Hioki CM3286, testing output voltage phase sequence
13:12 Pros & Cons, closing thoughts