Ultratev locator manual

When partial discharge occurs in a gas, it is usually known as corona. Bundle the insulated strands Strand Insulation 2. Apply turn insulation 3. Form bundle into coils 4.

Apply ground insulation tapes 5. Impregnate or press cure 6. Seal the winding Surface Coating Turns are made up of smaller strands to lower the skin effect and stray current losses from the axial magnetic fields.

Strands have a larger surface area skin and can carry more current than a solid conductor. Mekanisme Kegagalan Examples of synchronized disturbances : a Partial discharges caused by e. Gating In such cases, trigger circuits can be incorporated that predict when the disturbance will occur which then will open a gate to prevent the signal from the PD sensor at the time of the disturbance from being counted as stator PD. Trigger circuit will produce gate. An experienced observer can often recognize stator PD and or disturbance.

A number of pattern recognition methods have been applied to separate PD from disturbances and indeed separate various failure processes from one another. Stator winding PD will likely have different statistical moments than some types of disturbances.

Sehingga dipakai coupling capacitor untuk mendeteksi signal PD yang tiba pada sensor PD yang diinstall. Akan tetapi signal yang dipancarkan akan terattenuasi. PD terdeteksi pada satu phasa akan bergeser kekanan grafik mendekati zero crossing dari AC cycle , kemudian phasa yang lain akan terdeteksi bergeser kekiri grafik mendekati peak dari AC cycle Tiara Vibrasindo Pratama 51 Switchgear Apa saja tipe Isolasi yang kemungkinan ada di dalam switchgear???

Tiara Vibrasindo Pratama 55 So Why?? Tiara Vibrasindo Pratama 63 Moisture Ingress leading to surface tracking Oil degradation leading surface erosion of insulation Category: Contact Resistance Ohmmeters. AEMC Clamp-On Ground Resistance Tester Touch voltage is displayed to alert user to potential unsafe conditions Large multi-function, bright yellow organic display OLED is visible in all lighting conditions Selectable test frequency improves accuracy in inductive environments Differentiates between loop and ground resistance measurements.

Category: Ground Resistance Testers. Category: Thermal Imagers. If the phase lock is lost at any time during a capture the unit displays a warning message on completion of the recording. Every attempt should be made to ensure a phase lock is present as the lack of this may affect the analysis of the data captured. To access the settings page, click the Settings icon on the Main Menu and the screen shown below will be displayed. The button toggles to a green colour when Key Beep is activated.

The time zone can also be changed here as shown below. The inactivity period can also be changed here as shown below. The Alarm Mode can be toggled on and off in this option. The NFC is enabled system wide by sliding the toggle switch to green. Once active the NFC features can be accessed through the survey and measurement screens.

Using the on-screen keyboard, enter the Wi-Fi password and then the Middle Button to save the network.

To access the firmware update screen press the update icon. Please check with Product Support for any available update files. The MicroSD card will be checked for any available updates, and details populated on the display as shown below.

To install the update found, press the tick icon on the right of the menu bar and await the process to complete. An update can only be installed if the instrument is plugged into the mains charger to avoid any unwanted shutdown due to low battery whilst performing the update process. Once installed, the instrument must be restarted to run the latest update. To check you have the most current software version or if you need assistance in updating your instrument, please contact product support.

Upon pressing the option a notification will appear asking for the action to be confirmed. Any Wi-Fi networks previously connected to and their login credentials will be preserved, and will not be cleared with the above. To access the file browser, click File icon on the Home screen.

Upon opening the File Browser, the contents at the root of the memory card will be displayed. Selecting a folder, represented by the folder icon , will cause it to be highlighted within the File Browser. The contents of the folder can then be displayed by pressing the icon or the physical button below it on the instrument. A folder can be deleted by pressing the icon or the physical button below it.

Selecting a folder, represented by the file icon , will cause it to be highlighted within the File Browser. Information regarding the file such as size, date modified and time modified can then be displayed by pressing the icon or the physical button below it on the instrument. A file can be deleted by pressing the icon or the physical button below it.

To initiate a capture press both the left and right hand buttons simultaneously for two seconds. Once capture completes a pop up window will appear giving a preview of the screen capture.

This preview can either be rejected by pressing cancel which discards the image and returns to normal operations or accepted which will move onto the file naming screen.

The file name screen provides the opportunity to rename the file from the default as shown below. Selecting the tick in the bottom left hand corner of the image stores the file to the removable microSD Card.

The Function Check display option can be used to toggle these inbuilt test sources. To launch the Function Check display, press the. Multiple test sources can also be toggled and checked.

Blank NFC tags are identical and can be programmed with substation or asset information. NFC functionality is enabled by default. When taking a reading, align the centre button with the NFC tag. This tag can be installed anywhere in the substation. Successful scan Substation information added to survey. The asset tag will store the following information required in the Metadata screen of Survey mode. Data from TEV, Cable PD or Ultrasonic measurement modes can be recorded and stored with corresponding metadata linking the data and its associated context.

A workflow consists of information regarding the assets and the specific measurements per asset that are to be performed. Enter substation information 2. Enter Panel Names and Numbers. Substation name cannot contain any Maximum of 63 panels. We recommend panel number 1 through to required number in sequential order.

Save Workflow to PC 4b. Save Workflow to SD card. The file will be saved as substation-name. If this folder does not exist, it must be created case sensitive. Pressing the Survey icon on the Main menu will display the Survey Mode display.

This display allows users to start, stop and view the progress of a survey. Doing this will show two options to select from; Select Workflow or Skip Workflow.

Enter your unique job number, the substation and switchgear information will be filled in using the information from the Workflow. Similarly to the Workflow route, a series of forms will be displayed with fields about the substation, switchgear and conditions. The form field can be populated using the inbuilt virtual keyboard or a drop down list of available options.

The Notification bar changes from blue to green to indicate a survey is currently running. On completion of the record, the default survey information fields are displayed to capture the measurement context data. This data is the same as entered when starting a survey through the menu icon.

Once this information has been entered, survey mode stays active ready for further data to be recorded and added to the survey. Some fields have populated lists of values to select from, with each having the option to override by inputting a custom value, others allow only virtual keyboard input and a select few have special behaviours. Navigation through the forms is done using the left and right buttons on the menu bar or using the corresponding physical buttons.

The last form to be populated is indicated by the right hand button on the menu bar changing to become a tick icon. Pressing this will close the last form, save the entered information and return to the home menu ready to start recording data. If a workflow is not being used, the default form fields used are set out below along with their behaviour:. Job Number The job number of the survey, used by Pressing the input field will show many users to link a survey to a contract the virtual keyboard or package of work.

Name Name of the substation being surveyed Pressing the input field will show the virtual keyboard. Type Type of the substation being surveyed Pressing the input field will show a populated list of substation types, with the option to enter a custom value using the virtual keyboard. Manufacturer Manufacturer name of the switchgear Pressing the input field will show a being surveyed populated list of switchgear manufacturers, with the option to enter a custom value using the virtual keyboard.

Type The type of switchgear being surveyed Pressing the input field will show a populated list of switchgear types with the option to enter a custom value using the virtual keyboard.

Installation Installation date of the switchgear Pressing the input field will show a Date date selector to input the switchgear installation date. Rated The rated voltage of the switchgear Pressing the input field will show a Voltage populated list of voltages with the option to enter a custom value using the virtual keyboard. Operating The operating voltage of the switchgear Pressing the input field will show a Voltage populated list of voltages with the option to enter a custom value using the virtual keyboard.

Busbar The insulation material of the Pressing the input field will show a Insulation switchgear's busbar populated list of busbar insulation materials with the option to enter a custom value using the virtual keyboard.

Temperature Temperature as read by the Pressing the input field will cause it Environmental Sensor to be populated with the current Temperature. Humidity Humidity as read by the Environmental Pressing the input field will cause it Sensor to be populated with the current Humidity. The list can be scrolled by dragging the list up and down using a finger or stylus. Selecting an item is done by pressing an item then pressing the tick in the menu bar. If the cross in the menu bar is pressed, the list will be closed and no input recorded.

Uppercase letters can be entered by pressing the arrow between A and Z. Double tapping the 0arrow will activate Caps lock, giving uppercase letters until it is next pressed. To accept the input text as input to the field, press the tick button on the menu bar, to cancel, press the cross on the menu bar of the Left button.

Following this, the average measurement for the period is stored. The Background Air measurement requires holding the instrument in free space in order to get an ambient reading.

The background temperature and humidity is taken directly from the current measurement by the Environmental Sensor. To record data, simply press the record icon visible on the menu bar, which will then start a 10 second period of data capture. When recording data in any of the Cable PD modes, the following data is recorded and stored:. When recording data in Ultrasonic measurement modes, the following data is recorded and stored:.

The view progress display shows a top view of a switchgear panel with the different components making up a panel separated out. Each component shows the total number of measurements taken on that component against the number of expected measurements.

The expected measurements are only applicable to surveys which are following a workflow, which sets out the measurements that should be taken as part of that survey. Full Name. Post Code. I'm not in the UK I'm a reseller.

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