Recent content by dumbkiwi

Hi Tiny Tim, Ah ha - I was thinking that's all it could be but was finding it difficult to find confirmation but easy to pull my hair out. Lets hope I can now get this kicked into touch. Many thanks. Regards Dumbkiwi.

Hey Salv, Yeah could do that. I'll send you a pm with my phone number. See you soon mate. Regards Callum.

Homework Statement I have a motor with a full load output rating of 2.8 kW with an effciency off 70% and at 80% of full load runs with a Power Factor of 0.8 lagging. A second motor has afull load output of 4.2kW with an effciency of 85% and at 80% of full load runs with a PF of 0.75...

Hi Tiny Tim, Thanks for your reply, I think it will help but I am too tired to try and work through it just now but will post again when I have had time to look at. Regards Dumbkiwi.

Homework Statement I am having difficulty with a question on my Electrical course and the expressing a motor load voltage and current in polar form. The motor is single phase 2.8 KW efficiency 70% and 80% of full load runs with a power factor of 0.8 lagging. Voltage 400v. Express the motor...