10/28/2017 5:27 AM | |
Joined: 1/17/2006 Last visit: 4/8/2024 Posts: 552 Rating: (29) |
Hi. I have measured the Current (A) and Voltage (V) in Masterdrive input and output. The values are shown below: Input: I = 129 A V = 381 V Cos phi = 1 (drive) P = √3 * 129 * 381 * 1 = 85128 W Output: I = 168 A V = 315 V Cos phi = 0.85 n = 94.1% P = (√3*168*315*0.85)/0.941 = 82303 W Why the input and output Power are not the same ? I want to estimate the power consumption based in output Current and Voltage. Regards, Berg ------------------------------------------------------------------------------------------ |
Last edited by: Jen_Moderator at: 10/30/2017 9:20:29 AMNew subject after splitting Last edited by: Berg at: 10/30/2017 12:39:20 PMerror in calculus "Educate the children and it won't be necessary to punish the men." |
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10/28/2017 9:41 AM | |
Posts: 8946 Rating: (999) |
There is some loss in the Inverter.... |
This contribution was helpful to1 thankful Users |
10/29/2017 10:59 AM | |
Joined: 5/28/2008 Last visit: 4/15/2024 Posts: 4505 Rating: (835)
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Hello, To estimate power consumtion, it should be based on input to the drive which will include (power consumtion of the motor + power losses in the drive). Please check this link for getting power loss data for panel components: Power loss data for control panel devices |
Ayman Elotaify |
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This contribution was helpful to1 thankful Users |
10/30/2017 12:47 PM | |
Joined: 1/17/2006 Last visit: 4/8/2024 Posts: 552 Rating: (29) |
Hi. Thanks for the useful sheet. Let me ask if you have a complete sheet with Masterdrives e Micromaster power loss ? Regards, Berg
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"Educate the children and it won't be necessary to punish the men." |
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10/31/2017 10:29 AM | |
Joined: 5/28/2008 Last visit: 4/15/2024 Posts: 4505 Rating: (835)
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Hello, No i am sorry I do not have this list |
Ayman Elotaify |
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11/2/2017 6:24 AM | |
Joined: 7/8/2009 Last visit: 7/26/2023 Posts: 1974 Rating: (477)
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Attached is Document related to power loss in micromaster
AttachmentPDF_power_loss_and_temperature_rise_en.pdf (407 Downloads) |
I dont Like people driving Fast, thats the reason I overtake them ;) |
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This contribution was helpful to2 thankful Users |
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