Recent content by someguy98457

Thanks! Also not to go one question to far, but what happens with a sine wave dimmers?Edit: Can anyone explain why the switch causes the voltage and amperage to be out of phase? And also why at 100% does there still seems to be a reactive power load? If (in theory) your not chopping the sine...

Right, but the "non trivial harmonics" are generated by the unused sine wave bouncing off the switch, not something inherit in the switch itself as oppose to in a electrical motor.

So I think I understand where the confusion is coming. Typical power factor problems come from current and voltage being out of "sync". Basically the thing that is being powered is taking those two things in at an offset to what is being supplied, your sine waves end up out of sync and bad...

Had a similar problem with a Sensor+ rack were it would sporadically say "No Data Port A", yet it still passed data to other packs. Reseating the control module fixed the problem.

Why would the least loaded leg be the one to blow? Would that be a result from the other two legs, having such load on them with a high resistance neutral, cause it to act like a 3 phase motor and put more strain on the lesser loaded leg to act as a neutral?

The real problem is this is not surprising, nor the biggest problem/safety concern they have. Steps are being taken thankfully though.Also thank you that was technical explanation i was looking for.

183 was calculated. We measured similar amperage with a Clamp meter. That was my original thought as well until we were able to blow a second new fuse under the same conditions.The reason I ask about the packs is because this lovely place also did not have a backup system/ emergency lighting...

So I encountered a confusing sketchy Dimmer hook up/power supply that was blowing 200 amp fuses in a 3 phase distro box. The confusing bit comes from the leg that was blowing was the leg that should have been the least likely to blow. The sketchy bit (extremely SKETCHY) comes from the fact that...

My friend had this exact problem on a 48/96 yesterday. Be my first Guess. (Also new level of respect for ETC tech's who do phone support, hurts the head when your not sitting there and cant see the faders)

;) Got that

Right. I was just looking for clarification. Though we tend to kill power to the dimmers ourselves cause we have old D192's and the trays die on us some what regularly.Thanks ruinexplorer that's what I was looking for. Are there any other certificates I should be striving to get?

I might have undercut my experience and training cause I dont want to be cocky, but my question, which I didn't phrase well, is where is the line? Does everyone have a certification that's a theater electrician? I'm not talking about doing building code and running conduit, or rather is that in...

What do you consider an electrician? I'm about to be a senior in college, electrician/ wannabe lighting designer, haven't had a lot of classroom training in electrics, currently master electricianing a summerstock (which has turned into its own safety nightmare). I'm trying to be cognizant of of...

I'm a college student (read broke), so I live one free stuff. Vectorworks and AutoCAD (which I use) I respect for getting me hooked on what I'll have to buy eventually but I get it for now for free (sounds like a drug dealer...). I use lightwright which cost me money, but then again I've done...

Do you know which resistor needs changing? and to what value? I'm on the control modules for the portable packs.