Howdy-doo my name is Graeme Murphy, I'm a product manager here at TechRentals
Today we're going to look at the UVolle VX, this is a Corona Camera.
It's generally used to identify instances of Corona in medium voltages and high
voltage systems. Corona occurs when we have a break down insulation.
The item supplied in the kit by TechRentals, we've got the instrument
we've got the spare batteries we have a charger with the power supply
we have the microphone for recording audio onto it, we've also got an adaptor to allow you to
move the information from the memory stick and the instrument across to the PC
and we've got a video out adaptor and a strap to hang over your shoulder.
This is the unit itself, we've got the displays hidden under here just to show you we've got
our various IO options here we plug a mic in there, power, external USB memory
stick for copying the information across. We can also this is how we access the
battery, you flip this and replace them there's a couple of spare batteries so
we can get at least eight hours of work out of it when you rent this.
So let's have a look this is the, always take the lens cap off before you use it variably I forget to.
Open it up turning on is simply a matter of hitting this button
and the unit has turned on there we go it's turned on working
Okay we'll turn the instrument on, this is a menu down the side and there's various options available
here we move up and down the menu, using the up and down keys
simply hit this button here when we want to record that button to take a photograph.
This is a return key, now what I'm going to do the initial one
here is the UV gain, now you can see it's flashing little spots of the
distortion if you like because we've got the gain up very high now if I want to
bring the gain back you'll see that they disappear
they come up etc. So that's the UV gain I hit enter there I can come down
this is a visible zoom enter the UV zoom alters the size of the actual the
points it picks up so in other words when you if you're picking up a small image
you can actually make it a little larger. This here affects the colour of it
this is the autofocus and manual focus. This is to load items with previously
captured and then there's a maintenance menu down the bottom which you probably won't need
so we'll just go and have a quick look at what it looks like if we pick up an image
we'll just demonstrate what it looks like when we pick up a bit of
UV if you light this it's a quick way to test whether the instruments working
Can you light the lighter. Here we have an example of a UV output
Okay now if I want to take an image of this I can simply hit this button takes a
photograph or if I want to record a video I hit this button it's now
recording you can tell that red button red light here now I'll stop all right
if I want to look back at that I come down to this menu item and I push enter
wait a couple seconds loading information out of memory and I can go
hvr this is today's year month day and the last video there was this one here
I recorded and we can play it back, here it is there, very simple instrument to
operate highly effective. The corona cameras are a really quick, easy way to
identify the location of faults, they won't give you a magnitude because
the amount of Corona is a function of humidity
on the day and temperature etc but you can walk along and look at assets
and you can very quickly identify where you've got problems
you then follow up with additional tests for example from a PD test measuring
the actual DB level in acoustically or electromagnetically.
This is an example of measurements made in the field by this type of instrument
it's clearly visible where the issues are you would follow up this inspection
with a visual inspection of the actual insulators etc
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