Technical Guide and user manual
Contents
1. 1 2 Electrostatic discharge ESD The relay use components that is sensitive to electrostatic discharges The electronic circuits are well protected by the metal case and the internal module should not be withdrawn unnecessarily When handling the module outside its case care should be taken to avoid contact with components and electrical connections If removed from the case for storage the module should be placed in an electrically conducting antistatic bag There are no setting adjustments within the module and it is advised that it is not unnecessarily disassembled Although the printed circuit boards are plugged together the connectors are a manufacturing aid and not intended for frequent dismantling in fact considerable effort may be required to separate them Touching the printed circuit board should be avoided since complementary metal oxide semiconductors CMOS are used which can be damaged by static electricity discharged from the body 10 Handling Installation and Case Dimensions Page 3 8 DSA 2 1 2 HANDLING OF ELECTRONIC EQUIPMENT person s normal movements can easily generate electrostatic potentials of several thousand volts Discharge of these voltages into semiconductor devices when handling electronic circuits can cause serious damage which often may not be immediately apparent but the reliability of the circuit will have been reduced The electronic circuits are completely safe from electrostatic discharge2. 2 1 LCD display and keypad description 2 1 1 LCD display In the front panel a liquid crystal display LCD displays settings measured values and alarms Data is accessed through a menu structure The LCD has two lines with sixteen characters each back light is activated when a key is pressed and will remain lit for five minutes after the last key press This allows the user to be able to read the display in most lighting conditions 2 1 2 Keypad The keypad has seven keys divided into two groups Two keys located just under the screen keys and keys and are used to read and acknowledge alarms To display successive alarms press key Alarms are displayed in reverse order of their detection the most recent alarm first the oldest alarm last To acknowledge the alarms the user can either acknowledge each alarm using or go to the end of the ALARM menu and acknowledge all the alarms at the same time When navigating through submenus key is also used to come back to the head line of the corresponding menu NOTE To acknowledge a relay latched refer to the corresponding submenu section Four main arrow keysy 4 located in the middle of the front panel They are used to navigate through the different menus and submenus and to do the setting of the relay The enter key is used to validate a choice or a value modification of settings 21 User Guide Page 5 13 DSA 2 1 2 2 LEDs The top thr
3. USER INTERFACE 2 1 LCD display and keypad description 2 1 1 LCD display 2 1 2 Keypad 2 2 LEDs 2 3 Description of the two areas under the top and bottom flaps 3 PASSWORD 3 1 Password protection 3 1 1 Password entry 3 1 2 Changing the password 3 1 3 Change of setting invalidation 4 DISPLAYS OF ALARM amp WARNING MESSAGES 4 1 Electrical Network Alarms O NN Oo BB A A M sch e 4 2 Relay Hardware or Software Warning Messages 5 MENUS 5 1 Default display sch N N N 5 2 Access to the menu sch N 5 3 Menu contents description 18 User Guide Page 2 13 DSA 2 1 1 PRESENTATION OF DSA 2 1 RELAY This relay is fully numerical relays designed to perform electrical protection and control functions DSA 2 1 relay is powered either from a DC or an AC auxiliary power supply Using the front panel the user can easily navigate through the menu and access data change settings read measurements etc Eleven LEDs situated in the front panel help the user to quickly know the status of the relay and the presence of alarms Alarms that have been detected are stored and can be displayed on the back lit LCD Any short time voltage interruption 50ms is filtered and regulated through the auxiliary power supply DSA 2 1 relay have 3 phase inputs available for 1 and 5 Amps rated CTs On each one of these relay DSA 2 1 relay continuously measure phase and earth currents and take into account the true RMS cur
4. most recent alarm first the oldest alarm last Each alarm message is numbered and the total number of alarm messages is displayed The user can read all the alarm messages pressing The user acknowledges and clears the alarm messages from the LCD pressing The user can acknowledge each alarm message one by one or all by going to the end of the list to acknowledge and clear all the alarm messages pressing The control of the ALARM LED LED 2 is directly assigned to the status of the alarm messages stored in the memory If one or several messages are NOT READ and NOT ACKNOWLEDGED the ALARM LED LED 2 flashes If all the messages have been READ but NOT ACKNOWLEDGED the ALARM LED LED 2 lights up continuously If all the messages have been ACKNOWLEDGED and cleared if the cause that generated the alarm disappears the ALARM LED LED 2 is extinguished 25 User Guide The different electrical system alarms are listed below LED 6 I gt gt Counter 1 LED 7 I gt gt Counter2 LED 8 I gt gt Counter 3 26 Page 9 13 DSA 2 1 User Guide Page 10 13 DSA 2 1 4 2 Relay Hardware or Software Warning Messages Any software or hardware fault internal to DSA 2 1 relay generates a hardware software alarm that is stored in memory as a Hardware Alarm If several hardware alarms are detected they are all stored in their order of appearance The warning messages are resented on the LCD in reverse order of their detec
5. the Relay to provide an adaptable solution for the problems of the protection electric networks Introduction Page 5 5 DSA 2 1 4 MAIN FUNCTIONS The following table shows the functions available for DSA 2 1 relay Three phase overcurrent coordinate by yes upper recloser relay yes Programmable free contacts relays Latching output contacts Setting groups Measurements True RMS RS 232 front communication Fault Record Event Record RS 485 rear communication Modbus RTU IEC 60870 5 103 Courier DNP3 0 Handling Installation and Case Dimensions DSA 2 1 HANDLING INSTALLATION AND CASE DIMENSIONS Handling Installation and Case Dimensions CONTENTS 1 GENERAL CONSIDERATIONS 1 1 Receipt of relays 1 2 Electrostatic discharge ESD 2 HANDLING OF ELECTRONIC EQUIPMENT 3 RELAY MOUNTING 4 UNPACKING 5 STORAGE 6 DIMENSIONS 7 Communication 7 1 RS232 Port 7 2 RS485 port 8 Earthing Page 1 8 DSA 2 1 R N M M on ON OQO Handling Installation and Case Dimensions Page 2 8 DSA 2 1 1 GENERAL CONSIDERATIONS 1 1 Receipt of relay Protective relay although generally of robust construction require careful treatment prior to installation on site Upon receipt relay should be examined immediately to ensure no damage has been sustained in transit If damage has been sustained during transit a claim should be made to the transport contractor and AEG SAM should be promptly notified
6. when housed in the case Do not expose them to risk of damage by withdrawing modules unnecessarily Each module incorporates the highest practicable protection for its semiconductor devices However if it becomes necessary to withdraw a module the following precautions should be taken to preserve the high reliability and long life for which the equipment has been designed and manufactured 1 Before removing a module ensure that you are at the same electrostatic potential as the equipment by touching the case 2 Handle the module by its front plate frame or edges of the printed circuit board Avoid touching the electronic components printed circuit track or connectors 3 Do not pass the module to another person without first ensuring you are both at the same electrostatic potential Shaking hands achieves equal potential 4 Place the module on an antistatic surface or on a conducting surface which is at the same potential as yourself 5 Store or transport the module in a conductive bag If you are making measurements on the internal electronic circuitry of an equipment in service it is preferable that you are earthed to the case with a conductive wrist strap Wrist straps should have a resistance to ground between 500 10 If a wrist strap is not available you should maintain regular contact with the case to prevent a build up of static Instrumentation which may be used for making measurements should be earthed to the case
7. whenever possible More information on safe working procedures for all electronic equipment can be found in BS5783 and IEC147 It is strongly recommended that detailed investigations on electronic circuitry or modification work should be carried out in a special handling area such as described in the above mentioned BS and IEC documents 11 Handling Installation and Case Dimensions Page 4 8 DSA 2 1 3 RELAY MOUNTING The relay is dispatched either individually or as part of a panel rack assembly Modules should remain protected by their metal case during assembly into a panel or rack For individually mounted relays an outline diagram is supplied in following of this chapter showing the panel cut outs and hole centres 12 Handling Installation and Case Dimensions Page 5 8 DSA 2 1 4 UNPACKING Care must be taken when unpacking and installing the relay so that none of the parts is damaged or the settings altered The relay must only be handled by skilled personnel The installation should be clean dry and reasonably free from dust and excessive vibration The site should be well lit to facilitate inspection The relay that have been removed from the case should not be left in a situation where that is exposed to dust or damp This particularly applies to installation which is being carried out at the same time as construction work 13 Handling Installation and Case Dimensions Page 6 8 DSA 2 1 5 STORAGE If relay
8. AEG SAM Numerical VIT sectionalizer protection relay DSA 2 1 Technical Guide and user manual 4 Ke 2 o Technical Guide and user manual Contents DSA 2 1 NUMERICAL VIT Sectionalizer Relay CONTENTS Introduction Handling Installation and Case Dimensions User Guide Menu Content Tables Technical Data and Curve Characteristics Application Guide Introduction Page 1 5 DSA 2 1 CONTENTS INTRODUCTION HOW TO USE THIS MANUAL INTRODUCTION TO THE DSA 2 1 MAIN FUNCTIONS R N A o N Introduction Page 2 5 DSA 2 1 1 INTRODUCTION The sectionalizer relay type DSA 2 1 is a numerical relay have been designed so that you can use it by coordination recloser relay 1 1 Priority priority of energizing the relay by power supply is by using of output PT minimum 50 VA Introduction Page 3 5 DSA 2 1 2 HOW TO USE THIS MANUAL This manual provides a description of DSA 2 1 functions and settings The goal of this manual is to allow the user to become familiar with the application installation setting and commissioning of the relay This manual has the following format DSA 2 1 Introduction Contents of the manual and general introduction to the relay DSA 2 1 Handling installation and case dimensions Precautions to be taken when handling electronic equipment DSA 2 1 User Guide of the relay as detailed description of the features DSA 2 1 Technical data a
9. LED 3 indicates internal alarms of the relay When the relay detects a non critical internal alarm typically a communication failure the LED starts blinking continuously When the relay detects a fault that is considered as critical the LED lights up continuously Only the disappearance of the cause of the fault can clear this LED repair of the module clearance of the Fault LED G1 this LED indicates that group1 adjustment is active LED G2 this LED indicates that group2 adjustment is active LED power this LED indicates that power is alive on 22 User Guide Page 6 13 DSA 2 1 2 3 Description of the two areas under the top and bottom flaps There is RS232 port available in the relay This RS232 port can be used either to download a new version of the application software version into the relay flash memory or to plug a laptop loaded with setting software To withdraw more easily the active part of the relay i e the chassis from its case open the two flaps then with a 3mm screwdriver turn the extractor located under the upper flap and pull it out of its case pulling the flaps towards you 23 User Guide Page 7 13 DSA 2 1 3 PASSWORD 3 1 Password protection An unlock key up down is required when you want to press any key after 5 minutes that you don t press any key you must unlock the keys for navigation through menus A password is required for relay settings especially when changing the var
10. SA 2 1 NOTE The lt lt Battery backed RAM memory gt gt and lt lt Battery failure gt gt alarm messages can be configured to be displayed or not by selecting yes or no in the configuration Alarms menu lt lt DEFAULT SETTINGS gt gt lt lt SETTING ERROR gt gt lt lt COMM ERROR gt gt Communication failure CLOCK ERROR Time tag failure DEFAULT SETTINGS Each time the relay is powered ON it will check its memory contents to determine whether the settings are set to the factory defaults If the relay detects that the default settings are loaded an alarm is raised The ALARM LED YELLOW will light up and the Watch Dog contact will be activated Only one parameter in the relay s menu needs to be changed to suppress these messages and to reset the watch dog This alarm is only an indication to the user that the relay has its default settings applied SETTING ERROR Should the CPU fails to get correctly store data to the EEPROM during a setting change a HARDWARE ALARM will appear on the LCD display followed by SETTING ERROR message when pushing on the button In addition the ALARM LED YELLOW will light up and the Watch Dog contact will be activated To reset this alarm it is necessary to power ON and OFF the relay Following this the last unsuccessful setting change will then need to be re applied If the alarm persists i e the SETTING ERROR alarm is still displayed please contact AEG s
11. SA 2 1 OP PARAMETERS HO 9 MEASUREMENTS COMMUNICATION GQ PROTECTION G 1 3 PROTECTION G2 69 RECGRDS 30 Menu Content Tables DSA 2 1 MENU CONTENT TABLES And description of details are as follow Menu Content Tables Page 1 5 DSA 2 1 Trip function VIT sectionalizer DSA 2 1 Relay I gt In Gave 1 Rec Close ee e am mm t 32 Menu Content Tables Detail of function VIT sectionalizer DSA 2 1 Relay Choose No of saving I gt Im 600 A lor2or3 Input 1 and input 2 1 Isetting lt In Eure lt gt Is Input 1 and 2 0 Before I save 1 I save No before 2 Page 2 5 DSA 2 1 Menu Content Tables MEASUREMENTS 0 01 Hz z 257 05A m pe E ra a PROTECTION Page 3 5 DSA 2 1 Menu Content Tables Page 4 5 DSA 2 1 55 15019 29 LOVLNOO N3dO7S81l xovaava3 82 XNV Z N AOC 1S019 ION LOVLNOO 3S010 s81 D C v L 9 6c 587 LON 9525 indino 21 FI T NN indino 7 Em Q et WHV TV a1qeawuesboid 6 q ___ LL diHL q _ vi s NEN e DE KE S19 eseud e oj SINdUI lU JINI 94 gt gt
12. am After Sales Services for advice and assistance 28 User Guide Page 12 13 DSA 2 1 5 MENUS The menu of DSA 2 1 relay is divided into main menus and submenus The available content depends on the model of the relay 5 1 Default display By default the LCD displays the current value measured selected phase or earth As soon as an alarm is detected by the relay that information is considered as more important and the alarm message is then displayed instead of the default value The user can configure the information he wants to display by default going under the CONFIGURATION Display menu 5 2 Access to the menu Navigation through the different menus is done pressing the arrow keys 4v gt lt The organisation of the menus is shown in figure as follows There is need of an unlock key when reading parameters and measured values Modification of a parameter requires entering a password Should an error be made in entering a parameter press to cancel NOTE The letter is displayed when the password needs to be entered If no key is pushed during 5 minutes the password needs to be entered again 5 3 Menu contents description The menu of DSA 2 1 relay is divided into 8 main sections OP PARAMETERS CONFIGURATION MEASUREMENTS COMMUNICATION PROTECTION G 1 PROTECTION G2 AUTOMAT CTRL RECORDS VV Y To access these menus from the default display press 29 User Guide DEFAULT DISPLAY Page 13 13 D
13. ee LEDs indicate the status of the relay Trip condition alarm LED equipment failure The five lower LEDs are freely programmable by the user and can be assigned to display a threshold crossing for example available for all models or to show the status of the logic inputs The description of each one of these eight LEDs located in the left side of the front view is given hereafter numbered from the top to bottom from 1 to 3 LEDs at bottom showed by G1 G2 auxiliary supply LED 1 Colour RED Label Trip LED 1 indicates that the relay has issued a trip order to the cut off element circuit breaker contactor This LED recopies the trip order issued to the Trip logic output As soon as a triggering order is issued the LED lights up It is cleared when the associated alarm is acknowledged either through the front panel or by a remote command a digital input or by a new fault configuration Alarms menu LED 2 Colour yellow Label ALARM LED 2 indicates that the relay has detected an alarm This alarm can either be a threshold crossing instantaneous or a trip order time delayed As soon as an alarm is detected the LED starts blinking After all the alarms have been read the LED lights up continuously After acknowledgement of all the alarms the LED is extinguished The alarm LED can be reset either through the front panel or by remote command by a digital input or by a new fault LED 3 Colour YELLOW Label Warning
14. ious thresholds time delays communication parameters allocation of inputs and outputs relays The password consists of four capital characters When leaving factory the password is set to AAAA The user can define his own combination of four characters Should the password be lost or forgotten the modification of the stored parameters is blocked It is then necessary to contact the manufacturer or his representative and a standby password specific to the relay may be obtained The programming mode is indicated with the letter on the right hand side of the display on each menu heading The letter remains present as long as the password is active 5 minutes if there is no action on the keypad 3 1 1 Password entry The input of the password is requested as soon as a modification of a parameter is made for any one of the six eight menus and the submenus The user enters each one of the 4 characters and then validates the entire password with enter keypad After 5 seconds the display returns to the point of the preceding menu If no key is pressed inside of 5 minutes the password is deactivated A new password request is associated with any subsequent parameter modification 3 1 2 Changing the password To change an active password go to the OP PARAMETERS menu and then to the Password submenu Enter the current password and validate it Then press enter keypad and enter the new password character by character and validate the new passwo
15. is not to be installed immediately upon receipt they should be stored in a place free from dust and moisture in their original cartons Where de humidifier bags have been included in the packing they should be retained The action of the de humidifier crystals will be impaired if the bag has been exposed to ambient conditions and may be restored by gently heating the bag for about an hour prior to replacing it in the carton Dust which collects on a carton may on subsequent unpacking find its way into the relay in damp conditions the carton and packing may become impregnated with moisture and the de humidifier will lose its efficiency Storage temperature 25 C to 70 C 14 Handling Installation and Case Dimensions Page 7 8 DSA 2 1 6 CASE DIMENSIONS The relay is available in 4U metal case for panel or flush mounting Weight 1 8 Kg External size Height case 152 mm front panel 177 mm Width case 97 mm front panel 103 mm Depth case 226 mm front panel case 252 mm All dimensions in mm 15 Handling Installation and Case Dimensions Page 8 8 DSA 2 1 7 Communication 7 1 RS232 Port In the bottom of the front panel there is a RS232 port The communication with a computer through the RS232 allows access to the relay all information and setting It makes the access and changes of any information setting and configuration You can see all events and records by this port on monitor of computer we will explain
16. it by details in the next sections 7 2 RS485 port Connections to RS485 is made using annular terminals It is recommended that a two core screened cable is used with a maximum total length of 1000 m or a200nF total cable capacitance Typical specification Each core 16 0 2 mm copper conductor PVC insulated Nominal conductor area 0 5 mm per core Screen Overall braid PVC sheathed Linear capacitance between conductor and earth 100pF m 8 Earthing Each equipment must be connected to a local earth terminal by the intermediary of a M4 earth terminals We recommend a wire of minimal section of 2 5 mm with annular terminals on the side of the equipment Because of the limitations of the annular terminals the possible maximum section is of 6mm by wire If a larger section is necessary one can use cables connected in parallel each one ending with an annular terminal separated on the side of the equipment One can also use a metal bar NOTE To prevent any electrolytic risk between copper conductor or brass conductor and the back plate of the equipment it is necessary to take precautions to isolate them one from the other This can be done in several ways for example by inserting between the conductor and the case a plated nickel or insulated ring washer or by using a tin terminals 16 User Guide DSA 2 1 User Guide User Guide Page 1 13 DOA 2 1 CONTENTS 1 PRESENTATION OF DSA 2 1 RELAY 2
17. nd Comprehensive details on nominal values setting ranges specifications DSA 2 1 Commissioning and Maintenance Guide Guide to commissioning problem solving and maintenance of DSA 2 1 DSA 2 1 Connection diagrams for the relay DSA 2 1 Commissioning test records DSA 2 1 Hardware Software version history DSA 2 1 Communication mapping data bases Introduction Page 4 5 DSA 2 1 3 INTRODUCTION TO THE DSA 2 1 RELAY The DSA 2 1 relay provide comprehensive sectionalizer phase fault protection for utilities networks industrial plants and networks as well as for other applications where sectionalizer protection is required In addition to its protective functions each relay offers control and recording features They can be fully integrated to a control system so protection control data acquisition and recording of faults events and disturbances can be made available The relay is equipped on the front panel with a liquid crystal display LCD with 2 x 16 back lit alphanumerical characters a tactile 7 button keypad to access all settings clear alarms and read measurements and 11 LEDs that indicate the status of the relay In addition the use of the RS485 communication port by using protocol mode bus makes it possible to read reinitialize and change the settings of the relay if required from a local or remote PC computer loaded with software lts flexibility of use reduced maintenance requirements and ease of integration allow
18. rd using enter keypad The message NEW PASSWORD OK is displayed to indicate that the new password has been accepted 24 User Guide Page 8 13 DSA 2 1 3 1 3 Change of setting invalidation The procedure to modify a setting is described in the following sections of this manual If there is a need to get back to the old setting push key before validating the setting change The following message will then appear on the LCD for a few seconds and the old setting will remain unchanged UPGRADE CANCEL 4 DISPLAYS OF ALARM amp WARNING MESSAGES Alarm messages are displayed directly on the front panel LCD They have priority over the default display presenting measured current values As soon as the relay detects an alarm condition crossing of a threshold for example the associated message is displayed on the front panel LCD and the LED Alarm LED 2 lights up We distinguish two types of alarm and warning messages Alarm messages generated by the electrical power network Warning messages caused by hardware or software faults from the relay 4 1 Electrical Network Alarms Any crossing of a threshold instantaneous or time delay generates an electrical network alarm The involved threshold is indicated Regarding the phase thresholds the phase designation A B or C is also displayed If several alarms are triggered they are all stored in their order of appearance and presented on the LCD in reverse order of their detection the
19. rent value up to 10th harmonic at 50 Hz Output relays are freely configurable and can be activated by any of the control or protection functions available in the relay Logic inputs can also be assigned to various control functions On their rear terminals DSA 2 1 have a standard RS485 port available When ordering the user can choose between the following communication protocol ModBus RTU IEC 60870 5 103 Courier or DNP3 0 Using RS485 communication channel all stored information measurements alarms and parameters can be read and settings can be modified when the chosen protocol allows it DSA 2 1 relay can be connected directly to a digital control system All the available data can then be gathered by a substation control system and be processed either locally or remotely 19 User Guide Page 3 13 DSA 2 1 2 USER INTERFACE DSA 2 1 relay from panel allows the user to easily enter relay settings display measured values and alarm and to clearly display the status of the relay 2 x 16 alphanumerical backlit display 2 buttons to read and clear alarms messages Trip led Alarm led Warning led Programmable leds as 5 buttons to modify the setting and read vaues Battrey RS 232 FIGURE 1 DSA 2 1 front panel The front panel of the relay has three separate sections 1 The LCD display and the keypad 2 The LEDs 3 The two zones under the upper and lower flaps 20 User Guide Page 4 13 DSA 2 1
20. tion the most recent first and the oldest last Each warning message is numbered and the total stored is shown The user can read all warning messages pressing without entering the password It is not possible to acknowledge and clear warning messages caused by internal relay hardware or software failure This message can only be cleared once the cause of the hardware or software failure has been removed The control of the WARNING LED LED 3 is directly assigned to the status of the warning messages stored in the memory If the internal hardware or software failure is major i e the relay cannot perform protection functions the WARNING LED LED 3 lights up continuously If the internal hardware or software failure is minor like a communication failure that has no influence on the protection and automation functions the WARNING LED LED 3 will flash Possible Hardware or Software alarm messages are Major fault The protection and automation functions are stopped The RLO watchdog relay is de energised 35 36 contact closed EEPROM ERROR CALIBR gt gt Calibration zone failure CT ERROR Analog channel failure Minor fault The DSA 2 1 relay is fully operational The RLO watchdog relay is energised 35 36 contact open 36 37 contact closed RAM ERROR RAM supplied by battery failed Battery fail gt gt battery failure flat or not correctly in place 27 User Guide Page 11 13 D
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