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37137B

ESDR 4
Current Differential Protection Relay

Manual

Manual 37137B

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Summary of Contents for ESDR 4

Page 1: ...37137B ESDR 4 Current Differential Protection Relay Manual Manual 37137B...

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: ...puts 12 Relay Outputs 13 CHAPTER 4 FUNCTIONAL DESCRIPTION 14 Introduction 14 Functional Description 15 Monitoring of the Differential Current 15 Tripping Characteristic 15 Control Inputs 17 Relays 17...

Page 4: ...age 4 35 Woodward APPENDIX D SERVICE OPTIONS 30 Product Service Options 30 Returning Equipment for Repair 30 Packing a Control 31 Return Authorization Number RAN 31 Replacement Parts 31 How to Contact...

Page 5: ...s Figure 3 1 Wiring diagram 9 Figure 3 2 Power Supply 10 Figure 3 3 CT transducer inputs 11 Figure 3 4 Discrete inputs 12 Figure 3 5 Relay outputs 13 Figure 4 1 Protection principle 14 Figure 4 2 Char...

Page 6: ...ays Current transformer secondary 1 1 A 5 5 A Potential transformer secondary 0 not available 1 100 Vac 4 400 Vac Type Examples ESDR 401B Standard unit 1 A CT input for front panel mounting ESDR 405B...

Page 7: ...e 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 control cover may void...

Page 8: ...m 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 convert square mill...

Page 9: ...er ratio is adjustable in the display L1 L2 L3 Transducer set 1 30 25 26 27 28 29 G The transducer ratio is adjustable in the display Transducer set 2 36 33 34 31 32 18 Acknowledgement Relay 1 Trippin...

Page 10: ...4 Current Differential Protection Relay 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 reference voltage 2 5 mm...

Page 11: ...k s1 25 26 30 29 28 27 35 36 33 34 31 32 L1 L3 The transformer ratio is configurable via the display Grounding has to be done into the direction of the protection object Figure 3 3 CT transducer input...

Page 12: ...gnal 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 section 3 5 8 3 Amax A B...

Page 13: ...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 Make Contact Root Break...

Page 14: ...retically the currents Ia and Ib are equal both in fault free operation and outside the protection zone Figure 4 1 a The difference is zero and the differential protection does not initiate However in...

Page 15: ...relay in the Entry field on the screen is configured to on Otherwise the resetting is carried out by pressing the Clear button on the front of the unit or via the discrete input terminal 18 reset The...

Page 16: ...ristic 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 500 S I I N X I b a...

Page 17: ...haracteristics and delay time will determine how relay 1 functions Tripping relay 2 Terminals 4 5 6 This relay becomes enabled when the unit detects threshold limit 2 main stage has been exceeded The...

Page 18: ...rrent 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 Id 1 2 4 12 13 14 5 3 Fi...

Page 19: ...in level 2 is or was ex ceeded This message remains displayed till it is reset Buttons The display can appear in two different modes automatic mode or configuration mode The change from one to the oth...

Page 20: ...cursor reaches the extreme right and the button is pressed again LC Display 5 LC Display LC Display Messages and values are displayed depending on the selected mode In the configuration mode the unit...

Page 21: ...een can be advanced by pressing the Select button Should there be no entry parameter change or other action for 60 seconds the unit will automatically revert into Automatic mode During the configurati...

Page 22: ...t flows in the CT secondary Failure to use properly a sized CT Ratio leads to loss of resolution and inaccuracies in the monitoring functions generator nomin current 0000A Generator rated current 5 to...

Page 23: ...tion over this time period a fault condition for exceeding the threshold limit will be ini tiated pick up t Id IN release 0 00s Relay enable delay time for Id IN monitoring level 2 0 04 to 3 00 s If t...

Page 24: ...lly the warning limit is lower than the trip limit value pick up time warning 0 00s Enable delay time of the warning relay monitoring level1 0 04 to 3 00 s Only visible when the screen Warning is conf...

Page 25: ...e engine and or components connected to the unit Prerequisite Connect the unit according to the wiring diagram on Page 9 Pre adjustments In order to put the unit into operation you must 1 connect the...

Page 26: ...it must be ensured that the trip does not open the short circuit bridge in this case a tripping of the breaker would lead to large overvoltages If these current relationships are correct the equipmen...

Page 27: ...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 optional DIN rail mounting c...

Page 28: ...ve 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 250 Vdc...

Page 29: ...ratio 10 to 6 000 x A 500 x A generator nomin current 5 to 6 000 A 400 A automatic reset relay ON OFF OFF ON OFF ON OFF CONFIGURATION OF PROTECTION monitoring ON OFF ON ON OFF ON FF release limit IS I...

Page 30: ...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 Repair If a control or any...

Page 31: ...tgart 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 advance to obtain a R...

Page 32: ...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 33: ...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 f...

Page 34: ..._____________________ Control see name plate Unit no and revision P N ____________________ REV ____________ Unit type ESDR 4____________________________________ Serial number S N _____________________...

Page 35: ...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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