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  1. General Electrical Discussion
    Hi all! Apologies for my lack of technical wording as I am not an electrician by any means nor do I have any electrical education except from YouTube so bear with me but I thought I would ask here from people that know what they are talking about! :) I am currently building my own skoolie bus...
  2. Alternative Energy Forum
    I understand a Grid Tie PV inverter converts DC to AC and that can be fed into the grid, with a safety feature which disconnects it when the grid goes down to protect line workers. Does a device like this exist that can be plugged into a portable generator, that is already generating AC, which...
  3. Alternative Energy Forum
    Hello, I understand the title may be not be allowed for safety reasons, but I ask from a brainstorming point of view, in order to understand what can & can't be done from a electrician point of view, not a utility point of view. Here is an outline of what I'm trying to do and why: I...
  4. General Electrical Discussion
    My subcontractor use ABB ACS580 instead of ACS880. They argue that can program to control crane with it. Load capacity and motor power is no problem here, but the purpose of inverter I concern here. Is there any advice?
  5. PLCs, VFDs, Motors and Controls
    Hi everyone. I've got a question from an employer. Please give me some explaination. Thanks in advance. A motor 50kw controlled by v/f method. now F=50hz. If f=40hz. P=?
  6. Alternative Energy Forum
    I'd like to ask for input and ideas relative to a possible ground-fault problem. I recently was called out to troubleshoot a residential PV system that had four (4) 2.5KW inverters. Three (3) of the inverters were inoperative (red lights + error codes). The two AC line fuses in three...
  7. General Electrical Discussion
    My connections on this cable broke, and as I cut them off to fix and replace them, I was interrupted and didn't pay attention to which was the hot and neutral with the RED protective sleeve, so I have them mixed up and do not know. How do I tell which should have the red connection, or does it...
  8. General Electrical Discussion
    Lenze-AC Tech the release of the NEMA 4X Terminal Cover with Speed Potentiometer. This Lenze-AC Tech product can replace most Hitachi Variable Frequency Drive models SJ200, L100 and L200 series products. In addition, the following AC Tech-Lenze SMV new HP Ratings are also availabe in NEMA 4X...
  9. General Electrical Discussion
    Anybody w/experience installing a solar PV system in Canada/Ontario? I am talking about 10kW to 50 kW commercial w/600Vac. Are there any solar inverters (Xantrex, SatCon, others) with 600Vac output? Is it better to use an US-solar inverter for 480V with a transformer? Any help is appreciated...
1-9 of 9 Results