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Note: All relays must be powered up at least once per year to
GE Power Management
215 Anderson Avenue, Markham, Ontario
Canada L6E 1B3
Tel: (905) 294-6222 Fax: (905) 294-8512
Internet: http://www.GEindustrial.com/pm
DIGITAL OVERCURRENT PROTECTION
avoid deterioration of electrolytic capacitors and subsequent
relay failure.
DIAC / DIFC / DSFC
Instruction Manual
Manual P/N: GEK-105570C
Copyright © 2001 GE Power Management
GE Power Management
Manufactured under an
ISO9002 Registered system.
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Summary of Contents for GE DIAC
- Page 1 GE Power Management DIAC / DIFC / DSFC DIGITAL OVERCURRENT PROTECTION Instruction Manual Manual P/N: GEK-105570C Copyright © 2001 GE Power Management Note: All relays must be powered up at least once per year to avoid deterioration of electrolytic capacitors and subsequent relay failure.
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Page 3: Table Of Contents
..............................42 URDENS ...........................42 ONTACT ATINGS ............................42 NVIRONMENTAL .........................42 NSULATION ITHSTAND ESTS ........................42 URGE ITHSTAND APABILITY ........................42 ADIO REQUENCY ITHSTAND ........................42 LECTROSTATIC ISCHARGE APPLICATION NOTES ......................43 IOC/TOC U ............................43 Cover Photo: 8919670 DIAC / DIFC / DSFC Digital Overcurrent Protection... - Page 4 FIGURE 22: SURFACE MOUNTING DIFC......................... 31 FIGURE 23: DSFC PANEL MOUNTING AND DRILLING ..................32 FIGURE 25: DIAC OR DSFC TEST SETUP FOR PICKUP AND OPERATING TIME VERIFICATION ..... 37 FIGURE 26: DIFC TEST SETUP FOR INSTANTANEOUS UNIT................37 FIGURE 27: DIAC OR DSFC TEST SETUP FOR INSTANTANEOUS............... 38 FIGURE 28 (9819647/8919648): DIAC FRONT AND REAR VIEWS .................
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Page 5: Introduction
• Fully Retrofitable * • Functional separate TOC and IOC opera- tions. • Wide settings range. To Load • Drawout case construction When replacing unit and case (see instruction manual INSTALLATION section for details). DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 6: Product Description
The DIAC, DIFC and DSFC are a family of self- less than 7%. powered, single-phase, digital overcurrent relays. The DIAC is packaged in a GE S1 style case, the The relays contain two independent settings, one DIFC is packaged in a GE C1 style case and the for TOC and one for IOC. - Page 7 IEEE Inverse See Figure 12 for graph of equation − Reset time − − Pickup time 0103 0228 − DIAC / DIFC / DSFC Digital Overcurrent Protection...
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Page 8: Figure 1: Iac51 Toc Curve
Current Range: 0.5 - 15.9 ( 5 Ampere Relays) Inverse Standard 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 1: IAC51 TOC Curve DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 9: Figure 2: Iac53 Toc Curves
Current Range: 0.5 - 15.9 ( 5 Ampere Relays) Very Inverse Standard 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 2: IAC53 TOC Curves DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 10: Figure 3: 55 Short Time Toc Curves
Current Range: 0.5 - 15.9 ( 5 Ampere Relays) Short Time 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 3: 55 Short Time TOC Curves DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 11: Figure 4: 57 Medium Time Toc Curves
Current Range: 0.5 - 15.9 ( 5 Ampere Relays) Inverse Medium 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 4: 57 Medium Time TOC Curves DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 12: Figure 5: 66 Long Time Toc Curves
Current Range: 0.5 - 15.9 ( 5 Ampere Relays) Inverse Long 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 5: 66 Long Time TOC Curves DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 13: Figure 6: 75 Short Time Toc Curves
Current Range: 0.5 - 15.9 ( 5 Ampere Relays) 0.1 - 3.18 (1 Ampere Relays) Inverse Medium Short General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 6: 75 Short Time TOC Curves DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 14: Figure 7: Iac77 Toc Curves
Current Range: 0.5 - 15.9 ( 5 Ampere Relays) Extremely Inverse Standard 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 7: IAC77 TOC Curves DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 15: Figure 8: 95 Short Time Toc Curves
Current Range: 0.5 - 15.9 ( 5 Ampere Relays) Inverse Short 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 8: 95 Short Time TOC Curves DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 16: Figure 9: Iec Inverse Toc Curves
IEC Inverse Current Range: 0.5 - 15.9 ( 5 Ampere Relays) 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 9: IEC Inverse TOC Curves DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 17: Figure 10: Iec Very Inverse Toc Curves
Current Range: 0.5 - 15.9 ( 5 Ampere Relays) 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 10: IEC Very Inverse TOC Curves DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 18: Figure 11: Iec Extremely Inverse Toc Curves
Current Range: 0.5 - 15.9 ( 5 Ampere Relays) Extremely Inverse 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 11: IEC Extremely Inverse TOC Curves DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 19: Figure 12: Ieee Inverse Toc Curves
IEEE Inverse Current Range: 0.5 - 15.9 ( 5 Ampere Relays) 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 12: IEEE Inverse TOC Curves DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 20: Figure 13: Ieee Very Inverse Toc Curves
Current Range: 0.5 - 15.9 ( 5 Ampere Relays) Very Inverse 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 13: IEEE Very Inverse TOC Curves DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 21: Figure 14: Ieee Extremely Inverse Toc Curves
Current Range: 0.5 - 15.9 ( 5 Ampere Relays) Extremely Inverse 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 14: IEEE Extremely Inverse TOC Curves DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 22: Figure 15: Definite Time
Time Dial Range: (0.5 - 9.9) Definite Time Current Range: 0.5 - 15.9 ( 5 Ampere Relays) 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 15: Definite Time DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 23: Figure 16: I T Time Curve
Time Dial Range: (0.5 - 9.9) Current Range: 0.5 - 15.9 ( 5 Ampere Relays) 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA 19355 Figure 16: I t Time Curve DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 24: Figure 17: Ioc Curve
OVERCURRENT RELAYS Power Management GES10039 DIAC, DIFC, & DSFC Frequency: 50/60 Hertz Instantaneous Current Range: 0.5 - 15.9 ( 5 Ampere Relays) 0.1 - 3.18 (1 Ampere Relays) Figure 17: IOC Curve DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 25: Calculation Of Settings
The system frequency can be set for 50 or 60 Hz element. The time dial can be set from 0.5 to 9.9 controlled from the front panel. in 0.1 increments on both the 5 amp model and DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 26: Hardware Description
DIAC and DSFC minimum setting. The DIAC and DSFC relays consist of a case, The relay also provides a front panel trip circuit cover, support structure, and a connection plug test. An actuating lever that must be pulled and to make up the electrical connection. -
Page 27: Reset And Manual Trip
Reset And Manual Trip Cover Installation DIAC and DSFC Targets can be reset by depressing the front NOTE: When replacing the cover on the DIAC cover target reset button for the DIFC or lifting and DSFC relays the reset wire should be the target reset level at the lower left edge of the “locked”... -
Page 28: Installation
12 AWG braided ground lead connected to Terminal 4 when replacing IFC relays. The IFC relay and case must be removed and replaced with the DIFC relay and case. DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 29: Figure 18: Diac And Dsfc External / Internal Connections
*(.& Figure 18: DIAC and DSFC External / Internal Connections DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 30: Figure 19: Difc External / Internal Connections
*(.& Figure 19: DIFC External / Internal Connections DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 31: Figure 20: Diac Panel Mounting And Drilling
FOR SURFACE MOUNTING FRONT VIEW FRONT VIEW CASE 5/16-18 STUD TYPICAL DIM. 76MM INCHES VIEW SHOWING ASSEMBLY OF HARDWARE FOR SURFACE MTG. ON STEEL PANELS Figure 20: DIAC Panel Mounting and Drilling DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 32: Figure 21: Difc Panel Mounting And Drilling
SPACER SURFACE MOUNTING FOR PANEL DRILLING REMOVE KNOCKOUT .188 (5MM) THK. VIEW "C" REFER TO RELAY AND OVER. AND OVER. QUANTITY OF HOLES. HDW. 0257A8549-G2 Figure 21: DIFC Panel Mounting and Drilling DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 33: Figure 22: Surface Mounting Difc
F OR . 3 1 2 HL S SPACER SURFACE MOUNTING FOR PANEL DRILLING REMOVE KNOCKOUT .188 (5MM) THK. VIEW "C" REFER TO RELAY AND OVER. AND OVER. QUANTITY OF HOLES. HDW. 0257A8549-G2 Figure 22: SURFACE MOUNTING DIFC DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 34: Figure 23: Dsfc Panel Mounting And Drilling
FOR SEMI-FLUSH MOUNTING FRONT VIEW FRONT VIEW CASE 5/16-18 STUD TYPICAL DIM. 76MM INCHES VIEW SHOWING ASSEMBLY OF HARDWARE FOR SURFACE MTG. ON STEEL PANELS Figure 23: DSFC Panel Mounting and Drilling DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 35: Acceptance Tests
*(.& ACCEPTANCE TESTS Immediately upon receipt of the relay, an use the XLA series test plug (refer to the GE inspection and acceptance test should be made Power Management Product Catalog). Although to make sure that no damage has been... - Page 36 12.3 - 13.7 1.51 - 1.67 0.369 - 0.41 4.71 - 5.24 4.71 - 5.24 4.71 - 5.21 Definite Time 1.175 - 1.31 0.191 - 0.212 0.051 - 0.056 * TD = 5 DIAC / DIFC / DSFC Digital Overcurrent Protection...
- Page 37 0.266 - 0.296 9.5 - 10.5 6.65 - 7.31 2.83 - 3.15 0.95 - 1.05 Definite Time 0.351 - 0.3865 0.256 - 0.282 0.124 - 0.137 0.0664 - 0.073 * MPU = 5X DIAC / DIFC / DSFC Digital Overcurrent Protection...
- Page 38 Single Phase Current Source AUX TOC contact – Negative 36/300VDC Power Supply Target and Current Limited to Seal-in 200 mA + Positive Figure 24: DIFC Test Setup for Pickup and Operating Time Verification DIAC / DIFC / DSFC Digital Overcurrent Protection...
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Page 39: Figure 25: Diac Or Dsfc Test Setup For Pickup And Operating Time Verification
36 / 300 V DC Power Supply Target and I in Current Limited to Seal-In 200 mA + Positive Figure 25: DIAC or DSFC Test Setup for Pickup and Operating Time Verification Start Stop TIMER Single Phase Current Source AUX TOC Contact... -
Page 40: Figure 27: Diac Or Dsfc Test Setup For Instantaneous
AUX TOC Contact - Negative 36 / 300 V DC Power Supply Target and I in Current Limited Seal-In to 200 mA + Positive Figure 27: DIAC or DSFC Test Setup for Instantaneous DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 41: Periodic Tests And Servicing
Figure 28 (9819647/8919648): DIAC Front and Rear Views DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 42: Figure 29 (8919652/8919653): Difc Front And Rear Views
*(.& Figure 29 (8919652/8919653): DIFC Front and Rear Views Figure 30 (8919632/8919661): DSFC Front and Rear Views DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 43: Specifications
Frequency: 50/60 Hertz Burden Current Range: 0.5 - 15.9 ( 5 Ampere Relays) 0.1 - 3.18 (1 Ampere Relays) General Electric CO., 205 Great Valley Parkway, Malvern, PA Figure 31: Burden curve DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 44: Ratings
See Figure 31 for curve and Table 3 for settings. Electrostatic Discharge Contact Ratings Per: IEC 225-22-2 Output Contacts: 125V 0.5A Resistive 250V 0.3A 125V 0.25A 50VA Inductive 250V 0.15A 0.05A L/R=40ms 370V NOTE: Suitable for Cap-Trip devices. DIAC / DIFC / DSFC Digital Overcurrent Protection... -
Page 45: Application Notes
The trip contact remains closed until the trip circuit drops below 0.19 A. A breaker contact + DC Supply Breaker Contact (52a) Trip Coil - DC Supply Figure 32: IOC/TOC UNIT DIAC / DIFC / DSFC Digital Overcurrent Protection... - Page 46 * (3RZHU0DQDJHPHQW 215 Anderson Avenue Markham, Ontario Canada L6E 1B3 Tel: (905) 294-6222 Fax: (905) 201-2098 www.GEindustrial.com/pm...
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