GE DIAC User Manual Download

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GEK 105570B

GE Power Management

DIAC DIFC DSFC

Digital Self Powered Overcurrent Protection

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Summary of Contents for DIAC

Page 1: ...GEK 105570B GE Power Management DIAC DIFC DSFC Digital Self Powered Overcurrent Protection 3RZHU 0DQDJHPHQW QGHUVRQ YHQXH 0DUNKDP 2QWDULR DQDGD ZZZ JH FRP LQGV V SP...

Page 2: ...AND MANUAL TRIP 26 TRIP CIRCUIT TEST 26 TRIP CIRCUIT 26 COVER INSTALLATION DIAC AND DSFC 26 RECEIVING HANDLING AND STORAGE 26 INSTALLATION 27 ENVIRONMENT 27 MOUNTING 27 SURGE GROUND 27 ACCEPTANCE TES...

Page 3: ...C PANEL MOUNTING AND DRILLING 30 FIGURE 21 DIFC PANEL MOUNTING AND DRILLING 31 FIGURE 21A SURFACE MOUNTING DIFC 32 FIGURE 22 DSFC PANEL MOUNTING AND DRILLING 33 FIGURE 27 DIAC FRONT AND REAR VIEWS 41...

Page 4: ...r protection 50 51 applications Self powered 16 Selectable curves Reset curve enable disable Low Burden Fully Retrofitable Functional separate TOC IOC operations Wide settings range Drawout case const...

Page 5: ...cuit and overload protection for transformers and motors For feeder protection the usual applica tion requires one relay per phase and a fourth relay connected in the residual cir cuit of three wye co...

Page 6: ...itions are not one to one equivalents The IEC IEEE and I2 t curves are based on the following equations Note IEC equations are defined by IEC 255 4 and IEEE equations are defined by IEEE PC37 112 M mu...

Page 7: ...ery Inverse See Figure 13 for graph of equation Reset time t TD Pickup time t TD M M 4 32 1 3 922 1 0 0982 2 2 IEEE Extremely Inverse See Figure 14 for graph of equation Reset time t TD Pickup time t...

Page 8: ...IAC 51 RESET OPERATE 5 1 2 3 4 5 6 7 8 9 9 9 Time Dial Settings Inverse Standard Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 19355 0358A1104...

Page 9: ...LAYS IAC 53 RESET OPERATE 5 1 2 3 4 5 6 7 8 9 Time Dial Settings 9 9 Very Inverse Standard Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 19355...

Page 10: ...55 ST RESET OPERATE 5 1 2 3 4 5 6 7 8 9 9 9 Time Dial Settings Short Time Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 19355 0358A1106 Multip...

Page 11: ...MT RESET OPERATE Time Dial Settings 5 1 2 3 4 5 6 7 8 9 9 9 Inverse Medium Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 19355 0358A1107 Multi...

Page 12: ...ELAYS 66 LT RESET OPERATE Inverse Long 5 1 2 3 Time Dial Settings 4 5 6 7 8 9 9 9 Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 19355 0358A1108...

Page 13: ...75 ST RESET OPERATE Inverse Medium Short 5 1 2 3 Time Dial Settings 4 5 6 7 8 9 9 9 Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 19355 0358A1...

Page 14: ...YS IAC 77 RESET OPERATE Extremely Inverse Standard 5 1 2 3 4 5 Time Dial Settings 6 7 9 9 9 8 Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 193...

Page 15: ...LAYS 95 ST RESET OPERATE Inverse Short 5 1 2 3 4 5 Time Dial Settings 6 7 8 9 9 9 Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 19355 0358A1111...

Page 16: ...NT RELAYS IEC Inverse RESET OPERATE Time Dial Settings 3 2 1 5 4 5 6 7 8 9 9 9 Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 19355 0358A1112 Mu...

Page 17: ...LAYS IEC VERY INVERSE RESET OPERATE 5 1 2 3 4 5 6 9 9 7 8 9 Time Dial Settings Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 19355 0358A1113 Mu...

Page 18: ...Ext Inv RESET OPERATE Extremely Inverse 5 Time Dial Settings 9 9 9 8 7 6 5 4 3 2 1 Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 19355 0358A111...

Page 19: ...RELAYS IEEE Inverse RESET OPERATE Time Dial Settings 5 1 2 3 4 5 6 7 8 9 9 9 Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 19355 0358A1115 Mul...

Page 20: ...IEEE Very Inv RESET OPERATE Time Dial Settings 5 1 2 3 4 5 6 7 8 9 9 9 Very Inverse Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 19355 0358A11...

Page 21: ...Ext Inv RESET OPERATE Extremely Inverse 5 1 2 3 Time Dial Settings 4 5 6 7 8 9 9 9 Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 19355 0358A111...

Page 22: ...RRENT RELAYS Definite Time RESET OPERATE Time Dial Settings 5 1 2 4 5 6 7 8 9 9 9 3 Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 19355 0361A75...

Page 23: ...URRENT RELAYS I2T RESET OPERATE 5 1 2 3 Time Dial Settings 4 5 6 7 8 9 9 9 Frequency 50 60 Hertz 0 1 3 18 1 Ampere Relays General Electric CO 205 Great Valley Parkway Malvern PA 19355 0358A1119 Multip...

Page 24: ...MultplesofPickupSetting 2 3 4 5 6 7 8 9 100 Time in Milliseconds 1 2 3 4 5 6 7 8 9 10 OVERCURRENT RELAYS DIAC DIFC DSFC Instantaneous 1 5 1 1 GES10039 Current Range 0 5 15 9 5 Ampere Relays 0361A7503...

Page 25: ...in 0 02 amp increments for the 1 amp model a setting of 0 disables the TOC element The time dial can be set from 0 5 to 9 9 in 0 1 increments on both the 5 amp model and the 1 amp model The only excep...

Page 26: ...aling wire The settings are left to right pickup current level for the time element time dial curve selection frequency reset time pickup current level for the instantane ous element and the instantan...

Page 27: ...eset button for the DIFC or lifting the target reset level at the lower left edge of the cover on the DIAC and DSFC Trip Circuit Test The front panel contains two manual trip levers to test the trip c...

Page 28: ...d 22 for each stile case An additional surface mounting option is available for the DIFC relay Surge Ground DIAC DSFC The relay should be grounded to the station ground mat with a 12 AWG braided groun...

Page 29: ...28 FIGURE 18 DIAC and DSFC External Internal Connections...

Page 30: ...29 FIGURE 19 DIFC External Internal Connections...

Page 31: ...30 FIGURE 20 DIAC Panel Mounting and Drilling...

Page 32: ...31 FIGURE 21 DIFC Panel Mounting and Drilling...

Page 33: ...32 FIGURE 21A SURFACE MOUNTING DIFC...

Page 34: ...33 FIGURE 22 DSFC Panel Mounting and Drilling...

Page 35: ...brush be bent high enough to engage the connection plug or test plug before the main brushes do This will prevent CT current Transformer secondary circuits from being opened Electrical Tests DRAWOUT...

Page 36: ...ly apply currents of 2 5 and 10 times pickup TOC verifying that the operating times are within the margins indicated in Table 1 Note Time measured in seconds Table 1 Pickup Times for Varying Multiples...

Page 37: ...064 57 MT 17 3 19 3 12 2 13 65 5 27 5 86 1 783 1 98 66 LT 33 9 37 7 24 1 26 7 10 3 11 4 3 46 3 848 75 ST 0 577 0 641 0 424 0 471 0 2 0 221 0 09 0 1 IAC77 1 81 2 013 1 2 1 33 0 545 0 605 0 228 0 253 95...

Page 38: ...t is working correctly and confirms the operating time for faults applied with no prefault current Connect the relay as shown in figure 25 or 26 Set the instantaneous unit pickup to 2 Amps 5Amp rated...

Page 39: ...Time Verification Target Seal in AUX TOC contact T11 T12 T2 T1 Iin T5 T6 Single Phase Current Source Start Stop TIMER Negative 36 300VDC Power Supply Current Limited to 200ma Positive T1 Target Seal...

Page 40: ...arget Seal in AUX IOC contact T13 T14 T3 T1 Iin T5 T6 Single Phase Current Source Start Stop TIMER Negative 36 300VDC Power Supply Current Limited to 200ma Positive Target Seal in AUX IOC contact T10...

Page 41: ...the contacts for corrosion SERVICING If the relay fails to perform as specified in this instruction manual consult the factory or call your local GE sales office Before returning the relay consult wit...

Page 42: ...41 FIGURE 27 9819647 8919648 DIAC Front and Rear Views...

Page 43: ...42 FIGURE 28 8919652 8919653 DIFC Front and Rear Views...

Page 44: ...43 FIGURE 29 8919632 8919661 DSFC Front and Rear Views...

Page 45: ...n Minimum Setting Burden in ohms Z at multiples of minimum pickup unit range Hz R jX Z 3X 10X 20X 100X 1A 1 31 8 60 28 8 29 2 41 3 45 9 36 2 32 1 24 768 5A 5 15 9 60 1 28 1 15 1 74 42 394 094 052 034...

Page 46: ...rry 1 sec Break Max load DC Resistive 125V 250V 10A 30A 5A 3A 60W DC Inductive L R 40ms 125V 250V 370V 10A 30A 25A 15A 05A 50VA NOTE Suitable for Cap Trip devices Environmental Ambient Temperature Sto...

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