Sonel UV-260 Corona Camera Manuel utilisateur

USER MANUAL

CORONA CAMERA

UV-260

SONEL S.A.

Wokulskiego 11

58-100 Świdnica

Version 1.03 17.12.2019

UV-260 –USER MANUAL

UV-260 Corona Camera is a device for detecting and precise locating corona discharge

occurring in devices under high voltage. It helps to locate and determine the power of a discharge,

basing on UV radiation released during corona discharge and providing a reliable way of technical

assessment of high voltage equipment.

The camera allows user to overlay recorded images of the corona onto the visible image.

Images are displayed in real time on a TFT screen. Displayed image may be stopped and saved as

a still image; observed discharge may be also recorded as a video file. Recorded images and

videos are stored on a removable SD card in a format compatible with personal computers.

Main features of UV-260:

high, adjustable UV sensitivity,

automatic or manual focus adjustment for real image and UV image

combining real images and UV images

automatic reduction of noise and interference,

5.7" TFT touch screen,

insensitivity to solar radiation during the operation,

UV discharge detection alarm,

built-in GPS system,

precise location of UV discharge sources,

recording discharges with real image in the form of photos or videos that may be played on a PC,

a program for generating reports -included in the set

UV-260 –USER MANUAL

CONTENTS

1. Introduction......................................................................................................5

2. Safety ................................................................................................................5

3. The principle of the operation........................................................................6

3.1. Electromagnetic radiation: visible, infra-red, ultraviolet............................................ 6

3.2. Mechanism of corona discharge.............................................................................. 7

3.3. Why corona discharge? ........................................................................................... 8

3.4. Detection of corona discharge ................................................................................. 8

4. Preparing the camera for operation.............................................................10

4.1. External design of the camera ................................................................................10

4.2. Mounting on a tripod...............................................................................................11

4.3. Moving the camera .................................................................................................12

5. Ports and buttons..........................................................................................13

5.1. External ports..........................................................................................................13

5.2. Layout and functions of buttons..............................................................................14

5.2.1. Navigation buttons.......................................................................................................14

5.2.2. Operating mode buttons..............................................................................................15

5.2.3. Control of power supply / charging and alarm - corona discharge indicator..................15

6. Operation and battery charging ...................................................................15

6.1. Inserting the battery................................................................................................15

6.2. Charging the battery ...............................................................................................16

6.3. Guidelines for using the battery ..............................................................................16

7. Working with UV-260 camera .......................................................................17

7.1. Operation of the buttons .........................................................................................18

7.1.1. Recording a video........................................................................................................18

7.1.2. Recording a static image.............................................................................................18

7.1.3. Switching the image mode...........................................................................................18

7.1.4. "Freezing" displayed image .........................................................................................18

7.1.5. Changing the focus mode............................................................................................18

7.1.6. Gain adjustment ..........................................................................................................19

7.1.7. Zoom...........................................................................................................................19

7.1.8. Manual focus...............................................................................................................19

7.1.9. Zooming in ..................................................................................................................19

7.1.10. Playing a voice note ....................................................................................................19

7.1.11. Zooming UV+ image .................................................................................................19

7.2. Operating the menu................................................................................................20

7.2.1. Main menu ..................................................................................................................20

7.2.2. Image Settings ............................................................................................................21

7.2.3. Video...........................................................................................................................22

7.2.4. Image..........................................................................................................................22

7.2.5. System........................................................................................................................22

7.2.6. Sub-menu "System Settings".......................................................................................23

8. "Sonel UV Analyse" software.......................................................................24

8.1. System Requirements.............................................................................................24

8.2. Software Operation.................................................................................................24

UV-260 –USER MANUAL

8.2.1. Starting-up Software....................................................................................................24

8.3. Software Operation.................................................................................................25

8.3.1. Main Function Area .....................................................................................................25

8.3.2. Toolbar........................................................................................................................26

8.3.3. Template Selection......................................................................................................26

8.3.4. Appearance Setting & Font Setting..............................................................................28

8.3.5. Cancel.........................................................................................................................28

8.3.6. Line.............................................................................................................................28

8.3.7. Edit Box.......................................................................................................................28

8.3.8. Add Pictures................................................................................................................28

8.3.9. Image Setup................................................................................................................30

8.3.10. Audio Play...................................................................................................................31

8.3.11. List box........................................................................................................................32

8.3.12. Vertical list...................................................................................................................33

8.3.13. Line Analysis...............................................................................................................33

8.3.14. Histogram....................................................................................................................34

8.3.15. Page Attribute..............................................................................................................35

8.3.16. Video Transmission.....................................................................................................35

9. Other information ..........................................................................................38

9.1. Cleaning and maintenance .....................................................................................38

9.2. Storage ...................................................................................................................38

9.3. Dismantling and Disposal........................................................................................38

9.4. Transport.................................................................................................................38

10.Technical specifications ...............................................................................39

11.Accessories....................................................................................................40

12.Manufacturer ..................................................................................................41

UV-260 –USER MANUAL

1. Introduction

Thank you for choosing UV-260 camera.

UV-260 Corona Camera is a modern, high-quality tool, easy and safe to use. To prevent errors

and problems while operating the device, carefully read this manual before the first use.

This manual contains three types of warnings that describe the possible risks both for the user

and the device. Information starting with word "WARNING" describe situations, which may

endanger user's life or health, when instructions are not followed. Word "CAUTION!" begins a

description of a situation, which may result in device damage, when instructions are not followed.

Indication of possible problems is preceded by word "Note".

The device has been designed, developed and manufactured in accordance with ISO 9001

quality systems.

We reserve the right to introduce changes that modernize the device.

2. Safety

WARNING:

Do not attempt to open the device, as none of the components can be repaired or

calibrated by the user. Any maintenance activities may be carried out only by

authorized service personnel.

NOTE

Avoid strong shocks and stroking the device during its handling and transportation.

NOTE

Targeting the lens at objects that emit very high temperature (e.g. the sun), also when

switching the device ON/OFF may damage it.

NOTE

Never touch the lens. Dust accumulated on the lens may be removed only by using special

tools or compressed clean air.

The camera should be stored in cool, dry place, away from sources of strong electromagnetic

fields. When the camera is not used for a long time, remove the batteries.

During operation, the camera should be securely fastened, as all vibrations adversely affect the

accuracy.

UV-260 –USER MANUAL

WARNING:

Using the device with a damaged housing is a threat to the health and life of the user.

When working with the device, observe the technical conditions specified in this manual.

Damage to the camera, resulting from improper use, alteration and obvious negligence are not

covered by the guarantee.

3. The principle of the operation

Corona discharge is one of the three distinguished types of partial discharges i.e. breakdowns

caused by high voltage, which does not cause a short circuit. In addition to the corona discharge

(the least harmful of partial discharges), there are surface discharges, related mainly to

contaminated insulator surface and internal discharges caused by the degradation of the internal

insulation.

3.1. Electromagnetic radiation: visible, infra-red, ultraviolet

Individual types of electromagnetic radiation have wavelengths as shown in Figure 1.

Figure 1: Electromagnetic waves of different lengths.

Gamma Rays

X-Rays

Ultraviolet

Visible radiation

Infrared

Microwaves

Radio waves

Thermal camera

UV camera

UV-260 –USER MANUAL

3.2. Mechanism of corona discharge

Corona discharge is a current flow, usually in the air, from a discharge electrode which is under

high voltage.

High voltage is a source of air ionization, which creates plasma around the electrode - it is

ionized matter containing electrically charged particles. The resulting ions carry the load to places

of lower potential.

If the discharge electrode, which may be any object under high voltage, has a proper

"sharpened" shape, then a high potential gradient is generated around this part generates, which

may lead to a discharge. At very high voltage it may be a spark or arc - if a 'plasma channel' is

created. In contrast, corona discharge is formed when a voltage that causes ionization is too low at

the moment to create the plasma channel.

The discharge is invisible in daylight (in total darkness - rarely occurring in outdoor conditions -

it is hardly visible as a blue-violet afterglow), as most of the radiation generated is in the ultraviolet

range, invisible to human eye, and therefore, the development of UV radiation detectors causes

gradual replacement of acoustic-based detection methods with UV-based detectors.

Corona discharges generate the electromagnetic spectrum in the range of 200…405 nm; solar

radiation also contains (in addition to visible light) both infra-red and ultraviolet radiation. Using an

appropriate filter (wavelength range of 240…280 nm) suppress UV radiation generated by the sun,

so the camera may operate well in daylight without interference.

Fig. 2: The spectrum of corona discharge

Depending on the polarity of the discharge electrode, the corona discharge may be positive or

negative. In case of both negative and positive discharges, photons are the main source of

electrons. These photons are formed by induced atoms creating plasma, which return to lower

energy states, therefore the equipment is scaled in "UV photons."

Range filtered by the

camera

Solar radiation spectrum

Visible light

Ultraviolet

Wavelength (nm)

UV-260 –USER MANUAL

Positive discharge is homogeneous, as the majority of charges are concentrated close to the

electrode. Negative discharge at the same voltage takes a larger area, but because the energy is

spread over the wider area, it seems to be weaker and it may be difficult to locate.

In practice, controlled corona discharges, are used for example in industry to remove dust in

the gases, air, or to remove unwanted electric charges (even in household air ionizers). Charges

are generated on certain surfaces and this phenomena may be observed in many everyday items

e.g. a laser printer or photocopier.

3.3. Why corona discharge?

Unwanted corona discharge influence adversely the devices, where they occur, for example by

causing radio interference (often problems with the reception of radio signals near high voltage

power lines), or by causing a loss of energy (energy "escapes" to the air). The most adverse effect

of corona discharges, is the impact on the insulation elements, resulting in the need to disconnect

entire power transmission systems. Therefore, it is required to prevent corona discharges and

reduce them at their early stage, as the next stage results in creating an arc and permanent

damage.

Even the presence of small discharges in one place may cause adverse effects, because the

current flow and contamination generate corrosive substances, which deteriorate the condition of

insulators, enable the moisture access to the internal components and accelerate degradation.

Locating corona discharges is a useful cautionary measure, similarly to infra-red methods that help

to discover potential problems before they arise.

3.4. Detection of corona discharge

UV-260 detects and locates corona discharges by detecting the UV signal generated during the

discharge, then they can be counted to assess the level of discharge. In practice, the number of

discharges in a certain time is represented graphically - by so called 'UV image'. Precise overlay of

UV image on the real image provides an accurate and most importantly, safe (performed from a

distance) method of locating places where equipment degradation started, without the need to turn

off power of the tested facility.

Fig. 3, 4. Corona discharge in laboratory conditions.

Autres manuels pour UV-260 Corona Camera

Table des matières

Autres manuels Sonel Appareil photo numérique

Sonel

Sonel UV-260 Corona Camera Manuel utilisateur

Manuels Appareil photo numérique populaires d'autres marques

Mercury

Mercury 350K Manuel utilisateur

Pentax

Pentax Optio LS 465 Manuel utilisateur

Sanyo

Sanyo VPC-S1085 Manuel utilisateur

GE SMART A1255 Manuel utilisateur

Point Grey

Point Grey Gazelle Manuel utilisateur

Nikon

Nikon COOLPIX A Manuel utilisateur

Pentax

Pentax P-5 Manuel utilisateur

BlazeVideo

BlazeVideo A280 Manuel utilisateur

Sony

Sony MCA-20 Manuel utilisateur

Sony

Sony Alpha DSLR-A290 Manuel utilisateur

ATIK Cameras

ATIK Cameras One Manuel utilisateur

CohuHD Costar

CohuHD Costar 3930 Series Manuel utilisateur

Leica

Leica M10-R Manuel utilisateur

FujiFilm

FujiFilm FinePix A700 Manuel utilisateur

Lorex

Lorex LNZ81P25 Series Manuel utilisateur

GE J1470S Manuel utilisateur

Sony

Sony A6700 Guide de l'utilisateur

Canon

Canon EOS ELAN7 Manuel utilisateur