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GE Power Management

DFF series 1000

Instructions

Instructions
GEK 106166B

GEK 106166B

Digital Frequency Relay

Содержание DFF1000 Series

Страница 1: ...ement DFF series 1000 Instructions Instructions Instructions Instructions GEK 106166B GEK 106166B GEK 106166B GEK 106166B Digital Frequency Relay Digital Frequency Relay Digital Frequency Relay Digital Frequency Relay ...

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Страница 4: ... 15 2 6 1 DIGITAL INPUTS 15 2 6 2 OUTPUTS 15 2 7 MAN MACHINE INTERFACE MMI 16 2 8 REMOTE COMMUNICATIONS 16 3 SETTINGS 17 4 EQUIPMENT CONFIGURATION 21 4 1 INPUTS CONFIGURATION 21 4 2 OUTPUTS CONFIGURATION 22 4 3 LEDS CONFIGURATION 22 5 TECHNICAL CHARACTERISTICS 23 5 1 MODEL LIST 23 5 2 TECHNICAL CHARACTERISTICS 24 6 HARDWARE DESCRIPTION 27 6 1 MECHANICAL CONSTRUCTION 27 6 1 1 BOX CONSTRUCTION 27 6 ...

Страница 5: ...G 36 7 10 KEYPAD DISPLAY AND LEDS CHECKING 36 7 11 CONTROL OPERATIONS 37 7 12 INHIBITION VOLTAGE CHECKING 37 7 13 VOLTAGE FUNCTIONS CHECKING 37 7 14 FREQUENCY UNITS CHECKING 38 8 INSTALLATION AND MAINTENANCE 39 8 1 INSTALLATION 39 8 2 GROUND CONNECTION FOR SAFETY AND PERTURBATION REMOVAL 39 8 3 MAINTENANCE 39 9 KEYPAD AND DISPLAY 41 9 1 TREE MENUS 42 9 2 SETTINGS GROUP 42 9 3 INFORMATION GROUP 46 ...

Страница 6: ...to all tables 18 Table IV Independent settings to each table 19 FIGURE LIST FIGURE LIST FIGURE LIST FIGURE LIST Fig 1 External connections for model DFF1000 49 Fig 2 External connections for model DFF1001 50 Fig 3 External connections for model DFF1002 51 Fig 2 Panel mounting 52 Fig 3 RS 232 connection 53 Fig 4 Dimensions 54 Fig 5 Front view 55 Fig 6 Rear view 56 ...

Страница 7: ...GEK 106166B 4 ...

Страница 8: ...ns the regulator is not able to correct them itself and the frequency value will decrease with the danger of losing the generation capacity because of underfrequency tripping If this underfrequency condition is not corrected on time a general blackout may occur In case of shortage of generation capacity the only possible way of recovering the stability of the system is through a selective load she...

Страница 9: ...e front port is RS232 while the rear port can be RS232 RS485 plastic or glass fiber optics The DFF associated software is the following Communication software GE LOCAL that allows the user to view and modify the protection settings alarms internal status etc Configuration software GE INTRO that allows the user to configure the inputs outputs alarms and LEDs Oscillography software GE OSC that allow...

Страница 10: ...has disappeared If we want to adjust a unit as change rate we will select the setting FUNCTION TYPE as dF dT In this case the time delay setting is ignored and the trip is instantaneous only the number of semi cycles setting is taken into account this setting is common for all units Please refer to the General Settings section In order to issue a trip in this operating mode the frequency has to be...

Страница 11: ...se are due to the fact that for calculating the frequency only one cycle is need while for calculating the dF dT we need at least 5 cycles n If the voltage is under the value set for the inhibition unit all the frequency units will be cancelled but not the voltage units n The frequency voltage or frequency and voltage units can be disabled using the configurable inputs n Once the fault condition h...

Страница 12: ...ower than the setting during the course of the time delay The setting 27P RESET t is the time that the unit maintains the tripping contacts closed once the trip command has been issued Regardless the trip condition disappears or not the contact will remain closed until the expiration of this time Overvoltage units This unit is applied only to phase B that measures frequency The settings are the fo...

Страница 13: ...ddressed also to an output contact to an alarm or to a LED Programmable AND OR and NOT logic can be done through the internal states information For example activating one output when there is a pickup condition plus a digital input activation By adequate use of this internal states logic all kind of sophisticated load shedding schemes may be implemented The DFF device has two different types of i...

Страница 14: ...ut 11 59 99 Out of order 139 20 Input 10 60 100 Default general settings 140 21 Input 9 61 101 Table 1 default settings 141 22 Input 8 62 102 Table 2 default settings 142 23 63 103 Table 3 default settings 143 24 Input 7 64 Output 1 104 Trip contact 144 AND1 25 Input 6 65 Output 2 105 Table 1 active 145 AND2 26 Input 5 66 Output 3 106 Table 2 active 146 AND3 27 Input 4 67 Output 4 107 Table 3 acti...

Страница 15: ...se 16 LEDs form a single column and all of them are configurable using GE INTRO software All events 32 originated by protection and 16 by communications or an OR combination of them maximum 16 inputs coming out from the same group may be addressed to the LEDs Also we can select LED by LED whether we want memory on them or not This impacts the way LEDs will operate after a loss of the power supply ...

Страница 16: ... memory the events are maintained even in the case of power supply loss The generated events are associated with the internal states of protection and communications 2 4 2 OSCILLOGRAPHY REGISTER There are two types of oscillos selectable by the OSCILLO TYPE setting between NORMAL or FREC NORMAL Type The DFF unit can store up to 4 oscillography records with a resolution of 16 samples per cycle Each...

Страница 17: ...d signal analysis software package 2 5 SETTING TABLES The DFF provides three independent setting tables stored in a non volatile EEPROM memory Only one table is active at a time and it is the one the relay uses Of all the settings available in the relay there are some of them common for the three setting tables General Settings Active Table Oscillography Masks and Functions Enabling The rest of se...

Страница 18: ...5 20 configurable 5 fixed and 13 8 configurable 5 fixed outputs each The technical characteristics of the outputs are described in chapter 5 The configurable outputs may be programmed through a logic based on the internal states of the relay pickups trips alarms etc The DFF has 132 different internal states all of them can be combined through NOT AND and OR logic gates providing huge flexibility T...

Страница 19: ...onnector PORT1 is RS232 while PORT2 is either a fiber optics connector or a RS 485 one Connector for PORT1 has priority above connector PORT2 and is selected once DCD signal Data Carrier Detect is activated In figure 3 there is a sketch of how to make a connection to a personal computer Ports 1 and 2 are fully independent and can be used at the same time The relay is in local communication when we...

Страница 20: ...different settings for local and remote communications STOP BIT different settings for local and remote communications To view or modify the configuration settings please go to the configuration menu please refer to section 9 KEYPAD AND DISPLAY The DFF relay has three independent setting tables stored in non volatile EEPROM memory Those tables are selectable through settings or configurable inputs...

Страница 21: ...se ratio 1 4000 1000 1 PT ground ratio 1 4000 1000 1 Active Table Settings Active table 1 3 1 1 Function enabling 27P Function Enabled Disabled Disabled N A 59P Function Enabled Disabled Disabled N A 81 U1 Function Enabled Disabled Disabled N A 81 U2 Function Enabled Disabled Disabled N A 81 U3 Function Enabled Disabled Disabled N A 81 U4 Function Enabled Disabled Disabled N A 81 U5 Function Enabl...

Страница 22: ... Vca 80 1 V 59P Operation t 0 30 s 5 0 01 s 59P Reset t 0 30 s 0 0 01 s 81N Functions Function type FREC dF dT FREC N A 81 Pickup 40 a 70 Hz 50 Hz 0 01 Hz Time delay 0 60 s 1 00 s 0 01 s dF dT 0 1 10 Hz s 1 Hz s 0 01 Hz s Reset time 0 600 s 0 0 01 s Remarks about settings The No of RESET CYCLES setting allows the frequency units in step or dF dT mode to notice the fault conditions and count the se...

Страница 23: ...GEK 106166B 20 ...

Страница 24: ...ates assigned to inputs and then addressed those states to the outputs To perform such schemes the inputs have to the configured as Non active The operation of each input is as follows External Trigger Pulse This input is activated by a pulse and captures the analog waveforms at that moment Table 0 selection 0 Level This input is activated by a change in the voltage level It is used for changing t...

Страница 25: ...oltage unit In the same screen configure AND number 3 as the logic AND of AND number 1 and number 2 gates In the output configuration screen we assign output number 14 as the activation of AND number 3 4 3 LEDS CONFIGURATION The DFF system includes 16 user configurable LEDs Those LEDs can be associated to internal protection states and also to internal communication states One LED once activated m...

Страница 26: ...cols 5 0 P1 P2 Mlink 2 P1 Mlink P2 ModBus RTU Inputs Outputs 7 0 14 inputs 33 outputs 1 7 inputs 25 outputs 2 7 inputs 13 outputs 3 14 inputs 20 outputs Communications Point to Point 8 0 RS232 1 1mm plastic F O 2 62 5 125 glass F O 3 RS 485 Digital Inputs Power Supply 0 48 Vdc 10 1 125 Vdc 2 220 Vdc Power Supply 11 G 48 125 Vdc H 110 250 Vdc 15 A Revision Level Language 16 Spanish I English ...

Страница 27: ...herefore it should be avoided setting the relay at frequencies very close to the rated frequency i e less than 0 05 Hz difference It should be avoided also utilizing short delays combined with low frequency difference ELECTRICAL CHARACTERISTICS Frequency 50 or 60 Hz Nominal Voltage 90 220 Vac Power Supply 48 125 Vdc or 100 250 Vdc depending on model 20 Digital Inputs Power Supply 48 125 220 Vdc de...

Страница 28: ...ectromagnetic Compatibility 89 336 for CE marking It also fulfills low voltage European directives and standards ANSI C37 90 IEC 255 5 IEC 255 6 e IEC 68 Test Standard Class Dielectric Strength Insulation IEC 255 5 600V 2kV 50 60 Hz 1 minute Impulse voltage withstand IEC 255 5 5 kV 0 5 J 1 Mhz Interference test IEC 255 22 1 III Electrostatic discharge IEC 255 22 2 EN 61000 4 2 IV 8 kV Interference...

Страница 29: ...GEK 106166B 26 ...

Страница 30: ...cover This cover keeps the relay sealed and provides a high protection against dust and water IP51 index according IEC 529 The use of a push button allows access to the main functions without the need of removing the cover The front and rear views of the DFF are shown on figures 5 and 6 6 1 2 ELECTRICAL CONNECTIONS All the DFF electrical connections voltage inputs and digital I Os are done through...

Страница 31: ...he alpha numeric display The board also includes a transparent window for the display and for the control board in which the unit identification model number and serial number and its more relevant technical characteristics are included The group formed by both front boards is mechanically and electrically joined to the box by means of 4 screws placed at upper and lower part of the front To get th...

Страница 32: ...rforms the following It gives galvanic isolation to external signals by means of relay internal transformers It makes suitable the external signals to the adequate voltage levels for the internal circuitry Other elements included in the module are the passive filters As the magnetic module is an element connected to external equipment signals it is liable to suffer electromagnetic disturbance In o...

Страница 33: ...ut boards contents 12 heavy duty relays 16 Amperes nominal continuous capacity and 4000 VA breaking capacity Each of these relays has one contact NC NO The contact of each relay can be set separately as normally close or normally open by jumpers fixed by welding placed in the board In every configuration the contacts are non potential contacts without common elements and all of them have varistors...

Страница 34: ... the carrier and the damage must be reported to the manufacturer For unpacking the relay normal care should be taken in order not to lose the screws documents and other auxiliary elements also supplied in the box If it is not intended to install the relay immediately it is recommended to store it in its original package and keep it in a dry dust free and metal particles free place 6 3 INSTALLATION...

Страница 35: ...GEK 106166B 32 ...

Страница 36: ...ortation Make sure that all the screws are well tightened and the terminal blocks are not damaged Make sure that the device type indicated on the front plate matches with the order data 7 3 INSULATION TESTS Apply gradually 2000 Volts between all the terminals of one group short circuited themselves and ground or the chassis during one second Apply gradually 2000 Volts between groups during one sec...

Страница 37: ... is tripped measure its DC power consumption and check that it communicates correctly Test voltages and average burden are the following ones G Model H Model DC Voltage Consumption mA DC Voltage Consumption mA 39 550 80 550 125 227 250 227 150 205 300 205 7 5 VOLTAGE MEASUREMENT Set the PT ratios to the following values Settings relevant to the group of GENERAL SETTINGS PT PHASE RATIO 1000 PT GROU...

Страница 38: ...by associating one output relay with one input Each time an input is activated the output relay will be operated too Other way would be to associate one front LED to the activation of an input This configuration can be done by means of GE_INTRO software Repeat the test with the rest of the Inputs 7 8 OUTPUTS CHECKING 1 Trips Outputs checking Enable all the protection functions Enable the trips Mak...

Страница 39: ... following communication parameters Number of relay 1 Rear port baud rate 9600 Front port baud rate 9600 Rear port stop bits 1 Local port stop bits 1 By using GE_LOCAL communications software establish the connection and check the relay communicates through both communications ports Repeat this test with different baud rates 7 10 KEYPAD DISPLAY AND LEDS CHECKING Press Target Reset button and verif...

Страница 40: ... with 22 5 Vac and does not trip with 20 Vac Set inhibition voltage to 110 Check that the unit trips with 61 75 Vac and does not trip with 55 Vac Set nominal voltage to 220 Vac Set inhibition voltage to 40 Check that the unit trips with 54 9 Vac and does not trip with 49 Vac Set inhibition voltage to 110 Check that the unit trips with 150 9 Vac and does not trip with 135 5 Vac 7 13 VOLTAGE FUNCTIO...

Страница 41: ...02 4 Vac 7 14 FREQUENCY UNITS CHECKING 1 Absolute threshold checking Configure the frequency units as FREC and with the following actuation values Unit 1 49 Hz Unit 2 48 Hz Unit 3 47 Hz Unit 4 46 Hz Unit 5 45 Hz Unit 6 44 Hz Unit 7 43 Hz Unit 8 42 Hz Decrease gradually the frequency and check that each unit has an error margin not higher than 0 01 Hz 2 Frequency derivative checking Configure the f...

Страница 42: ...s connection as the whole chassis is grounded 8 3 MAINTENANCE Due to the primary role that protection relays have in any installation it is recommended that a periodic test program is followed As the intervals between these tests vary for different types of relays and installations as well as for the experience of the user performing the tests and given that this equipment provides self diagnosis ...

Страница 43: ...GEK 106166B 40 ...

Страница 44: ...s menu the relay must be in the main screen Single Key Menu The DFF relay allows a simplified operating mode by pressing the ENT key It is not necessary to remove the front cover to access to this mode In the standby mode the following message is displayed Here one of the last five groups must be selected In order to select other group you must return to this screen and press the corresponding key...

Страница 45: ...REAR P BAUD RATE Rear port communications baud rate REAR P STOP BITS Rear port stop bits FRONT P BAUD RATE Front port communications baud rate FRONT P STOP BITS Front port stop bits LOCAL SETT Local settings change enabled REMOTE SETT Remote settings change enabled LOCAL CONTROL Local control operations enabled REMOTE CONTROL Remote control operations enabled UNIT NUMBER Relay unit number PASSWORD...

Страница 46: ...phy trigger YES NO 81 U2 PICKUP Allows oscillography trigger YES NO 81 U3 PICKUP Allows oscillography trigger YES NO VIEW PROTECTION SETTINGS OSCILLOGR APHY MASK 81 U4 PICKUP Allows oscillography trigger YES NO CHANGE PROTECT SETTINGS 81 U5 PICKUP Allows oscillography trigger YES NO 81 U6 PICKUP Allows oscillography trigger YES NO 81 U7 PICKUP Allows oscillography trigger YES NO 81 U8 PICKUP Allow...

Страница 47: ...ows to enable or to disable the function Enabled Disabled 81 U3 TRIP Allows to enable or to disable the function Enabled Disabled 81 U4 TRIP Allows to enable or to disable the function Enabled Disabled 81 U5 TRIP Allows to enable or to disable the function Enabled Disabled 81 U6 TRIP Allows to enable or to disable the function Enabled Disabled 81 U7 TRIP Allows to enable or to disable the function...

Страница 48: ...ing tables In order to modify a setting the following steps must be followed 1 Press the SET key 2 Select MODIFY PROTECTION SETTINGS option 3 Select the desired setting in the menu 4 Press the value to be modified or select the desired one in the available settings list with 5 Press the ENT key If any other setting is to be modified inside the same group third and fifth steps must be repeated 6 Pr...

Страница 49: ... version Va Phase A voltage Vb Phase B voltage Vc Phase C voltage Vn Ground voltage FREQUENCY Frequency dF dT Frequency derivative F1 PICKUP Underfrequency unit 1 pickup F2 PICKUP Underfrequency unit 2 pickup F3 PICKUP Underfrequency unit 3 pickup F4 PICKUP Underfrequency unit 4 pickup F5 PICKUP Underfrequency unit 5 pickup F6 PICKUP Underfrequency unit 6 pickup F7 PICKUP Underfrequency unit 7 pic...

Страница 50: ...ressing consecutively the ENT key To access this mode the relay must be in standby The available information in this operation mode is shown in the following table in the same order that it is displayed MAGNITUDES DESCRIPTION Va Shows phase A primary voltage value kV Vb Shows phase B primary voltage value kV Vc Shows phase C primary voltage value kV Vn Shows ground primary voltage value kV Frequen...

Страница 51: ...bits added to each byte transmitted across the serial line It is treated as a logical binary setting with the logical keys 1 Y for 1 and 3 N for 3 LOCAL SETTINGS Setting which enables disables the settings change via local communication REMOTE SETTINGS Setting which enables disables the settings change via remote communication LOCAL CONTROL Setting which enables disables local mode control operati...

Страница 52: ...GEK 106166B 49 Figure 1 External Connections for DFF1000 model ...

Страница 53: ...GEK 106166B 50 Figure 2 External Connections for DFF1001 model ÿþ ÿ þ ÿ ÿ þ þ þ þ þ þ ÿ ÿ ÿ ÿ ÿ ÿ ÿ þ þ ÿ ...

Страница 54: ...5 1 7 5 5 7 6 7 2 1 7 6 7 2 1 7 5 3 7 5 3 7 5 3 6 3 6 3 6 3 6 3 6 3 6 3 6 3 6 3 6 3 6 3 6 3 6 3 6 3 6 3 6 3 6 3 6 3 6 3 6 3 6 3 3 5 2 5 0 0 2 8 7 3 8 7 6 7 5 3 7 5 3 7 5 3 7 5 3 7 5 3 7 5 3 7 5 3 3 8 3 3 8 3 3 8 3 3 8 3 3 8 3 3 8 3 3 8 3 3 8 3 L J X U H W H U Q D O R Q Q H F W L R Q V I R U P R G H O ...

Страница 55: ...GEK 106166B 52 Figure 4 Panel Mounting ...

Страница 56: ...GEK 106166B 53 OT DB 9 MALE DO NOT CONNECT THE SHIELD NOTE DB 9 MALE DB 9 FEMALE DB 9 MALE DO NOT CONNECT THE SHIELD NOTE Figure 5 RS 232 Connection ...

Страница 57: ...GEK 106166B 54 Figure 6 Dimensions ...

Страница 58: ...GEK 106166B 55 Figure 7 Front View ...

Страница 59: ...GEK 106166B 56 Figure 8 Rear View ...

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