Subscribe to Our Youtube Channel
Summary of Contents for Megger SFC250
- Page 1 Consultation with Megger SFC250 SmartFuse 250 USER GUIDE Issue: 6 (04/2018) - EN Article number: 85431...
- Page 2 Consultation with Megger...
-
Page 3: Consultation With Megger
E: team.dach@megger.com Megger All rights reserved. No part of this handbook may be copied by photographic or other means unless Megger have before-hand declared their consent in writing. The content of this handbook is subject to change without notice. Megger cannot be made liable for technical or printing errors or shortcomings of this handbook. -
Page 4: Terms Of Warranty
During the period of warranty, Megger agree to repair faulty parts or replace them with new parts or parts as new (with the same usability and life as new parts) according to their choice. -
Page 5: Table Of Contents
Contents Contents Consultation with Megger ....................3 Terms of Warranty ......................4 Contents ........................... 5 General Notes ....................7 Technical description ..................9 Abbreviations ...................... 9 System description ................... 10 Technical data ....................12 Connections, controls and display ..............14 2.4.1... - Page 6 Contents Deinstallation ....................57 Maintenance and care ..................58 Troubleshooting ..................... 63...
-
Page 7: General Notes
It is important to observe the generally applicable electrical regulations of the country in Working with products from Megger which the device will be installed and operated, as well as the current national accident prevention regulations and internal company directives (work, operating and safety regulations). - Page 8 In this case inform the person in charge who should inform the Megger service to resolve the problem. The instrument may only be operated when the malfunction is resolved.
-
Page 9: Technical Description
Technical description Technical description Abbreviations The following abbreviations are used in this manual: Access Point Name Comma-separated values DHCP Dynamic Host Configuration Protocol (network communication protocol) Global Positioning System Global System for Mobile Communications Local Area Network Machine-to-Machine Niederspannungs-Hochleistungs-Sicherung (low-voltage high-power fuse) Subscriber Identity Module Short Message Service SSID... -
Page 10: System Description
To this end, the SFC250 is inserted into the fuse holder (sizes NH 2 and NH 3; fuse value ≤250 A) in place of the normal NH fuse link. After successful installation and configuration the SFC250 behaves similar to a normal fuse element. - Page 11 The delivery scope includes at least the following components: Quantity Component Description Item number 1 … 3 Power module Fuse unit incl. Thyristor switch and 1005787 SFC250-PM measuring technology Supply module Control and processing unit incl. 1005924 SFC250-SM communication interfaces Remote control Incl.
-
Page 12: Technical Data
Technical description Technical data The SmartFuse 250 is defined by the following parameters: Parameter Value Triggering threshold 10 A … 250 A (adjustable) Reclose attempts 0 – unlimited Waiting time until reclose 1 – 120 seconds Surge energy control 1 – 50 half-waves Operating temperature -20°C to 50°C Operating humidity... - Page 13 Technical description The supply module is defined by the following parameters: Parameter Value Display Illuminated 3.5-inch colour touch screen (resistive) Indicator elements LED for indicating the switching state (when the cover is closed) Memory microSD card, 16 GB Interfaces and connections GSM / UMTS (SIM card required) •...
-
Page 14: Connections, Controls And Display
Technical description Connections, controls and display Supply module The supply module has the following connection, display and control elements: Inside of cover Outside of cover Element Description Touchscreen Ethernet port Trigger output (see page 32) Connection cable for direct connection to a power module or for connection to the three-phase adapter SFC 250-CA USB port SIM card slot... - Page 15 Technical description Element Description 12 V DC input for connecting the supplied power supply Stylus for operating the touch screen Connection cable for connecting to the neutral conductor Socket for connecting the external GPS module (see page 32) Power module The power module has the following connection and display elements: Element Description Blade contacts...
- Page 16 Technical description Remote control The remote control features the following connection, display and control elements: Element Description BNC coupling for connecting the antenna LED for display of the wireless connection (is lit when wireless connection is established) LEDs for display of the amount of current Buttons for switching the power switch on and off, or for triggering a pulse in pulse mode.
- Page 17 Technical description Connection adapter The connection adapter is used to connect up to three power modules to a supply SFC 250-CA module and has the following connection and display elements: Element Description Connection cable to the supply module Sockets for connecting up to three power modules Power LED The LED lights up as soon as the power module connected to the PM-A socket has been installed in the control cabinet and provides mains voltage.
-
Page 18: Information Plate
Technical description 2.4.1 Information plate The information plate is attached to the backside of the supply module and provides the following information necessary for the operation of SmartFuse 250: Element Description The factory preset login information for access via web browser The factory preset name of the wireless network (WLAN SSID) and the password for authentication (WLAN PW) [optional] License key for activation of the "fault location"... -
Page 19: User Interface
Access to the user interface The user interface can be accessed both locally on the supply module and remotely (using a web browser). The latter requires a data connection between the SFC250 and the device (PC, smartphone or tablet). In general, the software can be operated remotely just like as it is operated on the device itself. -
Page 20: Access Through A Web Browser
User interface 3.1.2 Access through a web browser The supply module provides various network interfaces, through which users can connect to the device and access the user interface. In general, the user interface can be accessed from any internet-connected device (PC, smartphone or tablet) that has a JavaScript-capable web browser. - Page 21 User interface After logging in, the main screen will appear, containing the following buttons and information: Header with information on switching status, load Current protection settings flow direction of the individual connected power (tap to open the respective modules (see below) menu): - Shutdown limit - Reclose operations (see...
- Page 22 User interface Information and The designation in the header (PM-A, PM-B and PM-C) is used to identify the power functions in the header modules and corresponds to the designation on the sockets of the three-phase adapter. After clicking/tapping on the designation, the status LED of the respective power module flashes for about 5 seconds, which enables a reliable visual identification of the power modules installed in the control cabinet (for example, in the case of tangled connecting cables).
- Page 23 User interface Status bar symbols The status bar contains the following information about the status of the device: Symbol Meaning Cover of the supply module is closed. The device can be monitored and configured remotely using a web browser. The cover of the supply module is open. The device is probably being operated locally right now.
-
Page 24: Start-Up
In order to be able to later monitor and configure a currently used SFC250 from the Fulfilling the... - Page 25 Start-up Configuring the The relevant individual parameters for disconnecting and reclosing the power modules can be defined in the menu Settings Fuse (they can also be accessed by shutdown and reclose clicking on the fuse value in the main screen). behaviour The operating parameters can also be adapted during operation at any time, either directly on the supply module or remotely.
- Page 26 Start-up Entering cable data If you use the optional fault location function, it is recommended that you enter the data for the protected cable stretch directly after installation under Settings Fault location. The fault location algorithm needs this data to calculate the distance to the fault location when a circuit breaker is tripped.
-
Page 27: Installation On Site
Start-up Installation on site Connection sequence The SmartFuse 250 must be connected in the following sequence: Connect power modules to the supply module Connect supply module to neutral conductor Insert power module into fuse holder WARNING Danger to life due to arcing Insertion into the fuse holder may only be performed by qualified •... - Page 28 Start-up Installation of the fork If the power module cannot fit into the fuse base due to design issues, the optionally adapter (optional) available fork adapter (see page 10) can help under certain circumstances. The installation is carried out with the help of a Torx and a slotted screwdriver according to the following figure.
- Page 29 Start-up Procedure Proceed as follows to install the SmartFuse 250 on site: Step Action Clean the interior of the distribution cabinet to remove dirt that could otherwise accumulate in the vents of the power module during operation. When necessary, also clean the vents themselves again before insertion (see page 58).
- Page 30 Start-up Step Action Insert the power module connected directly to the supply module or the PM-A socket of the adapter into the fuse base with the aid of a slip-on handle with cuff. Result: The power module now draws its supply voltage from the bus bar and also passes it on to the supply module, whose software starts directly afterwards.
- Page 31 Start-up Step Action If applicable, also insert the second and third power modules. Result: The green glowing status indicators signal on the power modules that the circuit breaker is not yet switched on and the feeding bus bar is still disconnected from the outgoing cable strands.
- Page 32 Start-up Installing the GPS On the top of the cover of the supply module there is receiver (optional) a socket , to which an optionally available GPS received (see page 10) can be connected. In this way, it can be ensured that the supply module is able to determine time and position data and to display it on the software interface, even if the internal GPS module fails to receive GPS signal...
-
Page 33: Completing Configuration, Power Up And Commissioning
• If the SFC250 is to be monitored and configured via the internet, there needs to be an existing connection to the cellular network (see page 23) and the housing cover must be closed. -
Page 34: Controlling And Monitoring In Running Operation
Controlling and monitoring in running operation Controlling and monitoring in running operation The user interface of the SFC250 can at any time during running operation be called up (see page 19) directly on the supply module or from a remote device in order to…... - Page 35 Controlling and monitoring in running operation Switching on and The remote control can be switched on with a brief press of the button . If, after establishing the switching on, the LED integrated in this button lights up red, this indicates that the wireless connection residual capacity of the batteries is low.
- Page 36 Controlling and monitoring in running operation The situation is different if, for at least one power module, the pulse mode for fault location (see page 42) has been activated. In this case, depending on the setting, either individual pulses can be triggered with the button or the automatic pulse mode can be started/stopped.
-
Page 37: Monitoring, Analysis And Fault Location
Controlling and monitoring in running operation Monitoring, analysis and fault location When the necessary conditions for sending notifications have been created, depending on the notification settings (see page 49), the configured recipients will be informed immediately and reliably about problems that occur. Furthermore, it is recommended to regularly log on to every SmartFuse 250 in operation in order to check the switch status and the recorded events / measurements. - Page 38 Controlling and monitoring in running operation Based on the measured values, no impedance/distance calculation could be made. This especially occurs in the case of a multi-pole fault between more than two conductors (e.g. between two phases and the neutral conductor or between all three phases). The cable data necessary for calculating the fault distance has not yet been saved (see page 26).
- Page 39 Controlling and monitoring in running operation If multiple shutdowns and automatic reclose operations have already taken place in the past, the displayed current and distance values always refer to the last shutdown. The values of the earlier shutdowns can be found in the event log (see below). For systems without the "fault location"...
- Page 40 • Average of the last 2 hours • A separate file is created for each day since commissioning. Fault location data Log files in XML format which are primarily used by the technical support of Megger for purposes of analysis.
- Page 41 Controlling and monitoring in running operation Step Action If preferred, call up menu item Delete data? to delete the downloaded files from the internal memory once download is successfully completed (so that they do not need to be downloaded again the next time). Call up the menu item Remove USB Stick and then pull out the USB flash drive.
-
Page 42: Fault Location In Pulse Mode (Optional „Fault Location" Function Required)
(for example, digiPHONE+) or the fault sniffer system. For this purpose, the SFC250 has a pulse mode, in which the power switch is switched on repeatedly for a defined number of half-cycles, and in each case an ignition of the fault is forced. - Page 43 With the surge wave receiver, go to the area in which you suspect the cable fault is located. Log on with a mobile device on the corresponding SFC250. If not data connection can be created with the device, the pulse mode can also be started by a second person in the vicinity of the device (via local operation,SFC250-RC or WLAN connection).
- Page 44 Controlling and monitoring in running operation Step Action Exit pulse mode after successful fault location by pressing the button in the main menu or the button on the remote control (only necessary in automatic mode). Disable the pulse mode in the device settings as well ( ...
-
Page 45: Configuration
License key The license key entered for activation of the "Fault location" option. Tools Reboot SFC250-SM Forces a restart of the supply module Load factory Resets all settings back to the original factory settings settings Calibrate touch... - Page 46 Configuration Parameter Description Date/Time/Language Date, time and menu language of the supply module. With GPS reception (see page 32), the time and date are determined automatically and cannot be entered manually. Service This password-protected area is only accessible to authorized service staff and only locally on the supply module.
-
Page 47: Pairing And Enabling The Remote Control
SFC250-RC. Result: The dialogue for managing the remote control opens. Call up the menu item Couple a SFC250-RC. Result: The message Perform RC pairing appears in the Status line. Take the remote control and move about 2 meters away from the supply module. - Page 48 All three LEDs should light up on the remote control. After the pairing has been successfully completed, the line Status displays the message SFC250-RC active and the serial number of the paired remote control. The remote control can now be used (see page 34).
-
Page 49: Modifying The Notification And Network Settings
Configuration Modifying the notification and network settings 6.3.1 Modifying the notification settings SMS or E-mail notifications can only be sent when the supply module has been configured for mobile data communication (see page 51) and is connected with a cellular network or cellular data network (see page 23). Using the menu ... -
Page 50: Modifying Lan And Wlan Settings
Configuration 6.3.2 Modifying LAN and WLAN settings Using the Settings Communication WLAN menu, the following settings of Modifying WLAN settings the wireless access point can be modified: Parameter Description Network Network name (or SSID) that is displayed when the device searches for wireless networks. -
Page 51: Ensuring Internet Accessibility
Due to the diverse solution approaches and network types, within the scope of this section actions can only be described in detail which are to be undertaken on the SFC250 itself. When adaptations to the network configuration are necessary and when selecting a suitable service provider, you should seek the assistance of your IT administrator. - Page 52 Save the settings using the button and then also as basic settings (see page 45). To ensure that the SFC250 was able to log into the cellular network, you should send a test SMS (see page 49). Configuring the If the access to the user interface is to occur over a VPN connection, an OpenVPN...
- Page 53 Remove the USB flash drive. Activate VPN connection. Access to the user The way in which the user interface of the SFC250 can be accessed with an Internet- interface compatible device differs according to the technical solution selected. If the access point in the cellular network and the fixed IP address is made available by a specialised service provider, the IP / URL for accessing the device must also be retrieved from that provider.
-
Page 54: Specifying The Outgoing Mail Server
Configuration 6.3.4 Specifying the outgoing mail server To send email notifications, the data of an SMTP server (used by mail providers to send mail messages) must be entered. An existing or specially set-up account with a public email provider can also be easily used for the sending of emails. The address and port of the SMTP server can usually be found very easily in the Internet. -
Page 55: Updating The Firmware
Update supply module and power module Step Action Register as a user on the Megger homepage and download the current software version from the user area. If you downloaded the executable If you downloaded the firmware as zip firmware file, …... - Page 56 Result: The update starts and the progress is shown on the user interface. After the update is successfully completed, the message SFC250-RC active is shown in the Status line. The remote control now once again has a firmware that is compatible with the...
-
Page 57: Deinstallation
Deinstallation Deinstallation WARNING Danger to life due to arcing Make sure that the power switches in all installed power modules are • switched off and the status indicators light up green. Removal from the fuse holder may only be performed by qualified •... -
Page 58: Maintenance And Care
Maintenance and care Maintenance and care WARNING Risk of electric shock All service and maintenance work on power modules may only be • performed in an off and deinstalled condition. Cleaning the vants of After longer use, the power module vents can get dirty. In extreme cases, this can block the power modules the fans. - Page 59 Maintenance and care Replacing fuses in If the status LED on the power module does not go on, even though the module has power modules been correctly inserted into a live low-voltage circuit and connected with the supply module, the fuses F1 and F2 must be checked. Proceed as follows to check fuse F1 and to replace it if necessary: Step Action...
- Page 60 Maintenance and care Proceed as follows to check fuse F2 and to replace it if necessary: Step Action Loosen the screw from the cover. Remove the fuse and check it for integrity. Insert the fuse or, if necessary, an included replacement fuse with the same characteristics (1.25 A/500 V H type, fast-blow;...
- Page 61 Maintenance and care Calibrating the touch The touch screen of the supply module is calibrated at the factory prior to delivery. screen of the supply If however there are increasing problems with stylus operation when activating buttons module or if the touch point for activating a button is clearly miscalibrated, a new calibration of the touch screen can provide a remedy.
- Page 62 Maintenance and care Step Action Tap on the following 4 crosshairs with the stylus. Result: After all 5 positions have been measured, you are prompted to touch the screen within 5 seconds to save the new calibration data. TSLIB calibration utility Touch crosshair to calibrate Press the screen to apply calibration.
-
Page 63: Troubleshooting
/ system must immediately be put out of operation and marked as not functional. In this case inform the person in charge who should inform the Megger service to resolve the problem. The device / system may only be operated when the... - Page 65 Troubleshooting Tento symbol indikuje, že výrobek nesoucí takovéto označení nelze likvidovat společně s běžným domovním odpadem. Jelikož se jedná o produkt obchodovaný mezi podnikatelskými subjekty (B2B), nelze jej likvidovat ani ve veřejných sběrných dvorech. Pokud se potřebujete tohoto výrobku zbavit, obraťte se na organizaci specializující se na likvidaci starých elektrických spotřebičů...
Need help?
Do you have a question about the SFC250 and is the answer not in the manual?
Questions and answers