ABB SA-1 Instruction Leaflet Download | Manualshive

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41-348.1H

23

Type SA-1
Generator Differential Relay

NOTES

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Summary of Contents for SA-1

Page 1: ... g C400 VCL 400 BF RB resistance of the burden excluding ct winding resistance In calculating the burden use the longest one way lead resistance from the ct to the SA 1 for distribution transformer or resistance grounded machines Use twice the longest one way lead resistance for reac tance grounded machines For example if the 400 5 tap of a 600 5 multi ratio ct is used NP 400 600 0 67 If this ct h...

Page 2: ...rip coil of a breaker The gate of the thyristor is connected to the output of the amplifier circuit through a pulse transformer With no gate current flowing the thyristor acts as an open circuit to the breaker trip coil When a gate cur rent is applied tot he thyristor the thyristor connects the breaker trip coil to the dc supply 2 6 INDICATING CIRCUIT The indicating circuit is triggered by a signa...

Page 3: ... of battery voltage level The 48 125 Vdc relays are normally shipped for 125 volts For 48 Vdc applications use the mid tap on the resistor mounted at the top of the relay The red dot on the resistor is the common point DO NOT REMOVE 7 INSTALLATION The relay should be mounted on switchboard panels or their equivalent in a location free from moisture Mount the relay vertically by means of the four m...

Page 4: ...rent Connect the relay per test circuit of Figure 17 with switch K open Adjust the operating resistor in the rear of the relay until the relay operates with IO equal to 0 14 ampere 0 5 ampere for desensitized SA 1 DO NOT make adjustments to the resistor unless the dc is disconnected The indicator lamp should light when the relay operates Repeat for each phase of the relay 2 Percentage Slope Charac...

Page 5: ...ifier a Output to operating sensing circuit b Input to amplifier c d Output to restraint sensing circuit Ref a b c d 30 0A Any phase to 24 26 51 0 dc Restraint 5 0A 1 2 3 18 13 17 14 15 16 6 0 ac 6 0 ac 6 0 ac Input to restraint rectifier Input to restraint rectifier Input to restraint rectifier Sensing Restraint 5 0A Any phase to 25 26 25 8 8 24 24 26 2 1 dc 1 2 dc 0 6 dc 0 3 dc a Output of restr...

Page 6: ...er SCR Transistor Transistor Transformer R1 R2 R3 R4 R5 R6 R7 R8 R9 R10 R11 R12 R13 R17 R18 R19 C1 C2 C3 C13 C4 C5 C6 C7 C8 C9 D1 to D24 D25 D26 Z1 T1 T2 T3 TR 1 270 Ohms 1W 2K 5 15K 5 2 7K 5 68K 5 27K 5 2 2K 5 100 Ohms 10 220 Ohms 5 680 Ohms 5 47K 5 33 Ohms 5 25 MFD 125V 22 MFD 35V 0 5 MFD 200V 2 2 MFD 35V 2 0 MFD 200V 0 47 MFD 50V IN4821 IN645A IN752A K1149 13 2N3417 2N2647 184A635H06 184A763H34...

Page 7: ...41 348 1H 7 Type SA 1 Generator Differential Relay Figure 1 Type SA 1 Generator Differential Relay without Case Front View ...

Page 8: ...41 348 1H 8 Type SA 1 Generator Differential Relay Figure 2 Type SA 1 Generator Differential Relay without Case Rear View ...

Page 9: ...41 348 1H 9 Type SA 1 Generator Differential Relay Figure 3 Internal Schematic of Type SA 1 Relay 48 125 Vdc 629A406 Sub 15 ...

Page 10: ...41 348 1H 10 Type SA 1 Generator Differential Relay Figure 4 Internal Schematic of Type SA 1 Relay 250 Vdc 876A613 Sub 9 ...

Page 11: ...H 11 Type SA 1 Generator Differential Relay Figure 5 Internal Schematic of Desensitized SA 1 Relay 877A847 Sub 8 RELAY TYPE SA 1 HIGH SPEED DIFFERENTIAL FOR GENERATOR PROTECTION IN TYPE FT 32 CASE DESENSITIZED ...

Page 12: ...41 348 1H 12 Type SA 1 Generator Differential Relay Figure 6 Component Location for 48 125 Vdc 762A601 Sub 9 23 C1 R17 ...

Page 13: ...41 348 1H 13 Type SA 1 Generator Differential Relay Figure 7 Component Location for 250 Vdc 867A639 Sub 5 Denotes Change ...

Page 14: ...0 01 uf 3516A36H03 C12 2 0 uf 3509A33H01 R15 470 Ohm 187A643H19 COMPONENT LOCATION 48 125 V C 1 0 C 1 1 C12 R15 2 1 3 4 5 SPK 1584C01G01 C11 C10 01 uf 3516A36H03 C12 2 0 uf 3509A33H01 R15 470 Ohm 187A643H19 COMPONENT LOCATION 48 125 V C 1 0 C 1 1 R15 2 1 3 4 5 SPK 1584C01G02 C11 C10 01 uf 3516A36H03 R15 470 Ohm 187A643H19 COMPONENT LOCATION 250 V 6 7 Illustration ...

Page 15: ...41 348 1H 15 Type SA 1 Generator Differential Relay Figure 9 External Schematic of Type SA 1 Relay for Generator Protection 775B965 Sub 4 Figure 10 Reactor Outline 775B982 Sub 1 ...

Page 16: ...T 5 FOR SHIPPING Lead IT L SCREW SIZE A B 1 3 00 164 32 164 32 2 4 00 164 32 190 32 3 3 00 164 32 190 32 4 13 438 164 32 190 32 ITEM PART NAME STYLE DWG ITEM GR NOTE CODE ENG REF REQ 01 LEAD 57Z0301 616 A 63 D 653 2 02 LEAD 57Z0401 622 A 63 D 655 3 03 LEAD 57Z0301 622 A 63 D 655 1 05 BAG 836A618 H04 B 27 D 5478 1 A B L 156 Denotes Change ...

Page 17: ...41 348 1H 17 Type SA 1 Generator Differential Relay Figure 12 Percentage Slope characteristic at Low Value of Restraint Current 3537A44 Sub 2 ...

Page 18: ...41 348 1H 18 Type SA 1 Generator Differential Relay Figure 13 Percentage Slope Characteristic at High Value of Restraint Current 878A742 Sub 3 ...

Page 19: ...41 348 1H 19 Type SA 1 Generator Differential Relay Figure 14 Percentage Slope Characteristic of High Value Restraint Current for Desensitized SA 1 Relay 619406 Sub 1 ...

Page 20: ...41 348 1H 20 Type SA 1 Generator Differential Relay Figure 15 Typical Operation Time Characteristic 477706 Sub 1 ...

Page 21: ...41 348 1H 21 Type SA 1 Generator Differential Relay Figure 16 Typical Frequency Response Curve 3537A45 Sub 2 Figure 17 Typical Frequency Response Curve 184A864 Sub 4 ...

Page 22: ...41 348 1H 22 Type SA 1 Generator Differential Relay Figure 18 Outline and Drilling Plan for the Type SA 1 Relay in Type FT 32 Case 3519A69 Sub 4 Denotes Change ...

Page 23: ...41 348 1H 23 Type SA 1 Generator Differential Relay NOTES ...

Page 24: ...d ABB Automation Inc Substation Automation Protection Division 4300 Coral Ridge Drive Coral Springs FL 33065 954 752 6700 800 523 2620 ABB Automation Inc Substation Automation Protection Division 7036 Snowdrift Road Suite 2 Allentown PA 18106 610 395 7333 800 634 6005 ...

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