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37138C

ESDR 4T
Current Differential Protection Relay

Manual

Manual 37138C

Summary of Contents for ESDR 4T

Page 1: ...37138C ESDR 4T Current Differential Protection Relay Manual Manual 37138C...

Page 2: ...e disconnecting the battery from the system Electronic controls contain static sensitive parts Observe the following precautions to prevent dam age to these parts Discharge body static before handling...

Page 3: ...L DESCRIPTION 14 Introduction 14 Measurement Inputs 15 Differential Current Monitoring 16 Tripping Characteristic 16 Electrical Restraint of Inrush Current and Overexcitation with Transformers 18 Self...

Page 4: ...X C LIST OF PARAMETERS 39 APPENDIX A SERVICE OPTIONS 41 Product Service Options 41 Returning Equipment for Repair 41 Packing a Control 42 Return Authorization Number RAN 42 Replacement Parts 42 How to...

Page 5: ...s the differential current and re straint current internally for each phase separately The following settings are taken into account for this Transformer vector group Rated current of the protection o...

Page 6: ...unit fitted with all available options Inputs outputs functions configuration screens and other details described which do not exist on your unit may be ignored The present manual has been prepared to...

Page 7: ...cup holders cigarette packages cellophane wrappers vinyl books or folders plastic bottles and plastic ash trays away from the control the modules and the work area as much as possible 4 Opening the co...

Page 8: ...nected to the system such as operating current coils undervoltage tripping units or auxiliary power contacts must be connected to a suitable interference suppressor The following chart may be used to...

Page 9: ...8 29 T G Transducer set 2 low votlage side 36 33 34 31 32 18 Acknowledgement Relay 1 Relay 2 Relay 3 Ready for operation Relay 4 0 Vdc 24 Vdc Common Configuration off 6 1 2 3 4 5 2003 07 14 ESDR 4T Wi...

Page 10: ...T Current Differential Protection Relay Page 10 46 Woodward Power Supply 24 Vdc 25 13 14 24 Vdc 0 V Power supply Figure 3 2 Power supply Terminal Description Amax 13 24 V DC 10 W 2 5 mm 14 0 Vdc refer...

Page 11: ...et 2 L2 L1 L3 G l s2 k s1 L2 l s2 k s1 l s2 k s1 l s2 k s1 L3 L2 L1 l s2 k s1 l s2 k s1 25 26 30 29 28 27 35 36 33 34 31 32 L1 L3 Generator diff prot G Protection object Figure 3 3 CT transducer input...

Page 12: ...e Signal device Signal device Blocking Acknowledgment Configuration 18 to 250 V ac dc 17 15 18 15 19 15 Figure 3 4 Discrete inputs Terminal Associated common Description according to DIN 40 719 sectio...

Page 13: ...rnal device external device C D E Relay output external device external device F G H Figure 3 5 Relay outputs Terminal Amax Root Make contact A B Description 7 8 Relay 3 Ready for operation 2 5 mm Mak...

Page 14: ...ng settings are taken into account for this Transformer vector group Rated current of the protection object on the low voltage side Rated primary current of the current transformer on the high and low...

Page 15: ...nal short circuit In order to prevent a tripping of the relay due to spurious currents the trigger threshold is not held statically constant but increases in relation to the restraint cur rent Is Spur...

Page 16: ...via the discrete input terminal 18 Reset Tripping Characteristic The following figure shows the tripping and warning characteristics with sample values for X12 Y1 and Y2 It represents the tripping an...

Page 17: ...ject 100 200 Characteristic gradient fixed 10 Monitoring step 2 fixed limit 100 X12 Y2 and Y1 adjustable N I 100 P X12 Y2 P X12 Y1 Y I d a I 300 400 2004 02 12 ESDR 4 Characteristic e4ww 0704 kenn skf...

Page 18: ...figuring as ON and set an operate margin in the next screen The operate margin must be set for rush detection This limit must be set so that it is not exceeded in normal operation But it must be excee...

Page 19: ...and text is not dis played Relays Relay 1 Terminals 1 2 3 The function of this relay may be configured Refer to Configuring the Relay on page 25 for details Relay 2 Terminals 4 5 6 The function of th...

Page 20: ...onitoring Differential Current Protection ON Alarm Is Ia Ib 2 Ia Ib Id Protected Object Ia Ib Operating and Alarm Messages L1 L2 L3 Release Variable Release Characteristic X Y 10 Id N I Is N I Lock Is...

Page 21: ...o the other If the digital input terminal 17 Configuration off is energized the display changes into Display mode and can not be changed to configuration mode If this digital input will be de energize...

Page 22: ...vert to the lowest permissible number 14 Clear Cursor Clear Cursor Display mode Clear The alarm text in the LC display is deleted if this button is pressed and held for 3 seconds and no alarm condi ti...

Page 23: ...nitoring level 2 L1 Idiff 2 Id In Differential current in Phase L2 exceeds the rated current monitoring level 2 L2 Idiff 2 Id In Differential current in Phase L3 exceeds the rated current monitoring l...

Page 24: ...utomatically revert into Display mode During the configuration mode the monitoring function is still enabled This means inevitably that while adjust ing parameters during operation it is possible to c...

Page 25: ...n the correctness of the code Correct codeIf the code for the active seal has been entered correctly the follow ing screens are skipped and the user may proceed to configure the pa rameters The defaul...

Page 26: ...n Relay Page 26 46 Woodward Code no 000 Breake Code no 001 New code Adjust settings ANWAHL SELECT Code no 000 Code SEALING Wrong Code ANWAHL SELECT Sealing ON OFF Code O K NO JA To leave the sealing p...

Page 27: ...e subsequent screens are not displayed Funct rel 12 R releases AA Funct rel 34 R releases RA Relays 1 2 3 and 4 functions A R A choice is made between different control principles with the selection o...

Page 28: ...s to the relays 1 to 4 The number of the relay to be enabled when the respective set point is exceeded has to be configured If left as all 0s no message will be issued It does not matter what order th...

Page 29: ...the transformer s capacity when at maximum current A smaller current transformer ratio would cause inaccuracies in the monitoring functions Curr transf Id low vol 0000A Primary value low voltage side...

Page 30: ...arrangement LV Z circuit arrangement 0 Yd11 HV circuit arrangement LV circuit arrangement 11 30 330 Yy6 HV circuit arrangement LV circuit arrangement 6 30 180 Dy11 HV circuit arrangement LV circuit a...

Page 31: ...onds when electrical restraint of inrush current or over excita tion is activated Diff current 2 Id In Y 000 Limit value Id IN monitoring step 2 Y2 0 to 300 This value determines the vertical position...

Page 32: ...exceeds the limit configured in the parameter Release value Overexcit tripping of the differential current 1 is restrained The subsequent screens will be displayed OFF No restraint occurs with over ex...

Page 33: ...or the unit circuit breaker must be disconnected at the unit circuit breaker The field rotation must be monitored for proper rotation Any absence of or incorrect connection of voltage measuring device...

Page 34: ...w voltage side 1 B k High voltage side LV Tr HV Tr B V V k VTR LV Transformer rated voltage low voltage side VTR HV Transformer rated voltage high voltage side Example Id ESDR 20 0 2 Iw prim HV 100 A...

Page 35: ...e already displayed the equipment should be shut down and the transformer assignment checked Testing with Cyclical Swapping With the system off the secondary connections of the CTs should be rotated b...

Page 36: ...h the rated current If this is not the case e g with tapped trans formers the threshold value of the differential protection may have to be corrected to less sensitive values Determining the maximum d...

Page 37: ...9 30 31 32 33 65 0 mm 55 8 mm 4 0 mm 46 5 mm 4 6 mm 5 8 mm 24 Section A operation and error messages 25 26 L1 4 0 mm 5 6 mm L2 L3 144 0 mm 180 0 mm 132 0 mm A 8 0 mm 110 0 mm 45 0 mm 16 5 mm A optiona...

Page 38: ...O Resistive load GP VCont relay output AC 2 00 Aac 250 Vac DC 2 00 Adc 24 Vdc 0 36 Adc 125 Vdc 0 18 Adc 250 Vdc Inductive load PD VCont relay output AC B300 DC1 00 Adc 24 Vdc 0 22 Adc 125 Vdc 0 10 Adc...

Page 39: ...ge aft 1 to 99 s 1 s Diff current 1 relay outp 0000 1 3 Diff current 2 relay outp 0000 1 3 Range monit Id relay outp 0000 1 3 inrush deteced relay outp 0000 1 3 BASIC SETTINGS Nominal current 10 to 9...

Page 40: ...t LV circuit arrangement 0 Yz5 HV circuit arrangement LV Z circuit arrangement 5 30 150 Dz0 HV circuit arrangement LV Z circuit arrangement 0 Yd11 HV circuit arrangement LV circuit arrangement 11 30 3...

Page 41: ...t cases your problem can be resolved over the phone If not you can select which course of action you wish to pursue based on the available services listed in this section Returning Equipment for Repai...

Page 42: ...ce Department in Stuttgart 49 0 711 789 54 0 They will help expedite the processing of your order through our distributors or local service facility To expedite the repair process contact Woodward in...

Page 43: ...one of the following international Woodward facilities to obtain the address and phone number of the facility nearest your location where you will be able to get information and service Facility Phone...

Page 44: ...a our toll free or local phone numbers e mail us or use our website and refer ence technical support Product Training is available on site from several of our worldwide facilities at your location or...

Page 45: ..._____________________ Control see name plate Unit no and revision P N ___________________ REV ____________ Unit type ESDR 4T __________________________________ Serial number S N ______________________...

Page 46: ...70565 Stuttgart Germany Phone 49 0 711 789 54 0 Fax 49 0 711 789 54 100 sales stuttgart woodward com Homepage http www woodward com power Woodward has company owned plants subsidiaries and branches as...

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