GE DIAC 66K Instruction Manual
  1. Manuals
  2. Brands
  3. GE Manuals
  4. Relays
  5. DIAC 66K
  6. Instruction manual

GE DIAC 66K Instruction Manual

Digital overcurrent relay
Hide thumbs
Table of Contents

Advertisement

Quick Links

Download this manual
g
GE Power Management
DIAC Type 66K
DIGITAL OVERCURRENT RELAY
Instruction Manual
DIAC 66K Revision: SPDV130.A03
Manual P/N: GEK-106261C
Copyright © 2000 GE Power Management
GE Power Management
215 Anderson Avenue, Markham, Ontario
Canada L6E 1B3
Tel: (905) 294-6222 Fax: (905) 294-8512
Manufactured under an
Internet: http://www.GEindustrial.com/pm
ISO9002 Registered system.

Advertisement

Table of Contents
loading

Related Manuals for GE DIAC 66K

Summary of Contents for GE DIAC 66K

  • Page 1 DIAC Type 66K DIGITAL OVERCURRENT RELAY Instruction Manual DIAC 66K Revision: SPDV130.A03 Manual P/N: GEK-106261C Copyright © 2000 GE Power Management GE Power Management 215 Anderson Avenue, Markham, Ontario Canada L6E 1B3 Tel: (905) 294-6222 Fax: (905) 294-8512 Manufactured under an Internet: http://www.GEindustrial.com/pm...
  • Page 3 These instructions do not purport to cover all details or variations in equipment nor provide for every possible contingency to be met in connection with installation, operation, or maintenance. Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser’s purpose, the matter should be referred to the General Electric Company.

  • Page 5: Table Of Contents

    ADJUSTMENTS: STANDARD INSTANTANEOUS UNIT......4-1 TARGETS AND INDICATORS ..............4-2 RESET TARGETS ..................4-3 MANUAL TRIP CIRCUIT TEST ..............4-3 TRIP CIRCUIT ................... 4-3 DIAC 66K COVER INSTALLATION............4-3 RECEIVING, HANDLING, AND STORAGE ..........4-3 4.10 TARGET AND SEAL-IN UNIT ..............4-3 5. INSTALLATION ENVIRONMENT ..................
  • Page 6 TABLE OF CONTENTS 7. SPECIFICATIONS BURDENS ....................7-1 RATINGS ....................7-2 ENVIRONMENTAL ..................7-2 DIAC Type 66K Digital Overcurrent Relay GE Power Management...

  • Page 7: Features

    • Fully Retrofittable • Functional separate TOC/IOC, TOC alarm & Standard (EM) IOC operations. • Wide settings range • Drawout case construction † The 66LT curve is used by this relay. GE Power Management DIAC Type 66K Digital Overcurrent Relay...

  • Page 8: Order Codes

    Same as ‘B’ except one 1 standard hi-set dual range target relay unit (20 to 160 A) Current Rating 1 Amp Nominal Current 5 Amp Nominal Current Revision Level Revision Level DIAC Type 66K Digital Overcurrent Relay GE Power Management...

  • Page 9: General

    Section 2.3: RATINGS. The DIAC 66K is packaged in a GE S1 style case. See Figure 5–4: DIAC PANEL MOUNTING AND DRILLING on page 5–5 section for mounting dimensions. The internal connections are shown in Figure 5–1: DIAC TYPE 66K INTERNAL/EXTERNAL CONNECTIONS on page 5–2.

  • Page 10: Ratings

    K value equal to the time dial times 250. The minimum value of K is 25 (0.1 × 250) and the The I maximum value is 2475 (9.9 × 250). NOTE: IEC equations are defined by IEC 255-4 and IEEE equations are defined by IEEE PC37.112 DIAC Type 66K Digital Overcurrent Relay GE Power Management...
  • Page 11 Current Range: 0.5 to 15.9 A (5 Amp Relays) 0.1 to 3.18 A (1 Amp Relays) 5 5 6 7 5 5 6 5 5 6 Multiples of Pickup Setting Figure 2–1: IAC51 TOC CURVE GE Power Management DIAC Type 66K Digital Overcurrent Relay...
  • Page 12 Current Range: 0.5 to 15.9 A (5 Amp Relays) 0.1 to 3.18 A (1 Amp Relays) 0.01 5 5 6 7 5 5 6 5 5 6 Multiples of Pickup Setting Figure 2–2: IAC53 TOC CURVES DIAC Type 66K Digital Overcurrent Relay GE Power Management...
  • Page 13 Current Range: 0.5 to 15.9 A (5 Amp Relays) 0.1 to 3.18 A (1 Amp Relays) 0.01 5 5 6 7 5 5 6 5 5 6 Multiples of Pickup Setting Figure 2–3: 55 SHORT TIME TOC CURVES GE Power Management DIAC Type 66K Digital Overcurrent Relay...
  • Page 14 Current Range: 0.5 to 15.9 A (5 Amp Relays) 0.1 to 3.18 A (1 Amp Relays) 5 5 6 7 5 5 6 5 5 6 Multiples of Pickup Setting Figure 2–4: 57 MEDIUM TIME TOC CURVES DIAC Type 66K Digital Overcurrent Relay GE Power Management...
  • Page 15 Current Range: 0.5 to 15.9 A (5 Amp Relays) 0.1 to 3.18 A (1 Amp Relays) 5 5 6 7 5 5 6 5 5 6 Multiples of Pickup Setting Figure 2–5: 66 LONG TIME TOC CURVES GE Power Management DIAC Type 66K Digital Overcurrent Relay...
  • Page 16 Current Range: 0.5 to 15.9 A (5 Amp Relays) 0.1 to 3.18 A (1 Amp Relays) 0.01 5 5 6 7 5 5 6 5 5 6 Multiples of Pickup Setting Figure 2–6: 75 SHORT TIME TOC CURVES DIAC Type 66K Digital Overcurrent Relay GE Power Management...
  • Page 17 Current Range: 0.5 to 15.9 A (5 Amp Relays) 0.1 to 3.18 A (1 Amp Relays) 0.01 5 5 6 7 5 5 6 5 5 6 Multiples of Pickup Setting Figure 2–7: IAC77 TOC CURVES GE Power Management DIAC Type 66K Digital Overcurrent Relay...
  • Page 18 Current Range: 0.5 to 15.9 A (5 Amp Relays) 0.1 to 3.18 A (1 Amp Relays) 0.01 5 5 6 7 5 5 6 5 5 6 Multiples of Pickup Setting Figure 2–8: 95 SHORT TIME TOC CURVES DIAC Type 66K Digital Overcurrent Relay GE Power Management...
  • Page 19 Multiples of Pickup Setting     0.97 0.014 ⋅ ⋅ RESET TIME: ; PICKUP TIME: ----------------- - ----------------------- -     0.02 – – Figure 2–9: IEC INVERSE TOC CURVES GE Power Management DIAC Type 66K Digital Overcurrent Relay...
  • Page 20 Multiples of Pickup Setting     4.32 1.35 ⋅ ⋅ RESET TIME: ; PICKUP TIME: ----------------- - ------------- -     – – Figure 2–10: IEC VERY INVERSE TOC CURVES DIAC Type 66K Digital Overcurrent Relay GE Power Management...
  • Page 21 Multiples of Pickup Setting     5.82 ⋅ ⋅ RESET TIME: ; PICKUP TIME: ----------------- - ----------------- -     – – Figure 2–11: IEC EXTREMELY INVERSE TOC CURVES GE Power Management DIAC Type 66K Digital Overcurrent Relay...
  • Page 22     0.97 0.013 ⋅ ⋅ RESET TIME: ; PICKUP TIME: 0.0228 ----------------- - ----------------------- -     0.02 – – Figure 2–12: IEEE INVERSE TOC CURVES DIAC Type 66K Digital Overcurrent Relay GE Power Management...
  • Page 23     4.32 3.922 ⋅ ⋅ RESET TIME: ; PICKUP TIME: 0.0982 ----------------- - ----------------- -     – – Figure 2–13: IEEE VERY INVERSE TOC CURVES GE Power Management DIAC Type 66K Digital Overcurrent Relay...
  • Page 24     5.82 5.64 ⋅ ⋅ RESET TIME: ; PICKUP TIME: 0.02434 ----------------- - ----------------- -     – – Figure 2–14: IEEE EXTREMELY INVERSE TOC CURVES DIAC Type 66K Digital Overcurrent Relay GE Power Management...
  • Page 25 Current Range: 0.5 to 15.9 A (5 Amp Relays) 0.1 to 3.18 A (1 Amp Relays) RESET 5 5 6 7 5 5 6 5 5 6 Multiples of Pickup Setting Figure 2–15: DEFINITE TIME GE Power Management DIAC Type 66K Digital Overcurrent Relay...
  • Page 26 5 5 6 Multiples of Pickup Setting     ⋅ ⋅ RESET TIME: ; PICKUP TIME: ----------------- - --------- -     – Figure 2–16: I T TIME CURVE DIAC Type 66K Digital Overcurrent Relay GE Power Management...
  • Page 27 Current Range: 0.5 to 15.9 A (5 Amp Relays) 0.1 to 3.18 A (1 Amp Relays) Multples of Pickup Setting Figure 2–17: IOC CURVE FOR THE HDO INSTANTANEOUS UNIT Figure 2–18: STANDARD (EM) INSTANTANEOUS UNIT GE Power Management DIAC Type 66K Digital Overcurrent Relay...
  • Page 28 2 PRODUCT DESCRIPTION GEK-106261 Figure 2–19: IOC CURVE FOR THE STANDARD (EM) INSTANTANEOUS UNIT DIAC Type 66K Digital Overcurrent Relay GE Power Management...

  • Page 29: Description

    When the top of the core is lined up with the calibration stamping, an approximate value of pickup can be determined. Dropout is at least 40 to 50 percent of pickup. GE Power Management DIAC Type 66K Digital Overcurrent Relay...
  • Page 30 3 CALCULATION OF SETTINGS GEK-106261 DIAC Type 66K Digital Overcurrent Relay GE Power Management...

  • Page 31: Case

    The DIAC relay consists of a case, cover, support structure, and a connection plug to make up the electrical connection. The case is shown in Figure 6–5: DIAC 66K FRONT AND REAR VIEWS on page 6–9. The exter- nal connections are shown in Figure 5–3: TYPICAL EXTERNAL CONNNECTIONS FOR MOTOR PROTEC- TION on page 5–4.

  • Page 32: Targets And Indicators

    4 HARDWARE DESCRIPTION GEK-106621 Table 4–1: DIAC 66K BURDEN DATA Pickup Frequency Amps † Impedance Power Volt-Amps Range (A) (Hz) (Ω) Factor 0.5 to 2 12.4 0.84 13.2 0.78 1 to 4 3.75 0.77 0.71 2 to 8 0.94 0.77 0.71...

  • Page 33: Reset Targets

    If damage occurred during shipment a damage claim should be filed at once with the transportation com- pany, and the nearest GE sales office should be notified. If the relay is not installed immediately, it should be stored in its original carton in a location that is dry and protected from dust, metallic chips and severe atmo- spheric conditions.
  • Page 34 4 HARDWARE DESCRIPTION GEK-106621 0.2 A SETTING 2 A SETTING 0.2 A SETTING 0.2 A SETTING Figure 4–2: OPERATING COIL TAPPED AT 2A (FACTORY DEFAULT) DIAC Type 66K Digital Overcurrent Relay GE Power Management...

  • Page 35: Environment

    4. If the relay is to be retrofitted in a panel, terminal 4 should be removed from the new case and installed into the old case. For the surge protection to function properly the relay must be grounded. GE Power Management DIAC Type 66K Digital Overcurrent Relay...

  • Page 36: Internal/External Connections

    5 INSTALLATION GEK-106261 5.4 INTERNAL/EXTERNAL CONNECTIONS Figure 5–1: DIAC TYPE 66K INTERNAL/EXTERNAL CONNECTIONS DIAC Type 66K Digital Overcurrent Relay GE Power Management...
  • Page 37 S H O R T F I N G E R For high range operation, connect B and D to terminal no. 6 and A and C to terminal no. 4 Figure 5–2: IAC TYPE 66K INTERNAL CONNECTIONS DIAGRAM (FOR REFERENCE) GE Power Management DIAC Type 66K Digital Overcurrent Relay...
  • Page 38 5 INSTALLATION GEK-106261 Figure 5–3: TYPICAL EXTERNAL CONNNECTIONS FOR MOTOR PROTECTION DIAC Type 66K Digital Overcurrent Relay GE Power Management...

  • Page 39: Panel Mounting And Drilling

    FOR SEMI-FLUSH MOUNTING FOR SURFACE MOUNTING FRONT VIEW FRONT VIEW CASE 5/16-18 STUD 76MM VIEW SHOWING ASSEMBLY OF HARDWARE FOR SURFACE MTG. ON STEEL PANELS Figure 5–4: DIAC PANEL MOUNTING AND DRILLING GE Power Management DIAC Type 66K Digital Overcurrent Relay...

  • Page 40: Motor Protection Characteristic Curve

    5 INSTALLATION GEK-106261 5.6 MOTOR PROTECTION CHARACTERISTIC CURVE Figure 5–5: MOTOR PROTECTION CHARACTERISTIC CURVE DIAC Type 66K Digital Overcurrent Relay GE Power Management...

  • Page 41: Description

    A relay may be tested without removing it from the panel by using the appropriate test plug. For an S case use the XLA series test plug, refer to the GE Power Management Product Catalog, Prod- ucts CD, or website (the URL is www.ge.com/indsys/pm).

  • Page 42: Toc Alarm Unit

    Successively apply currents of 2, 5, and 10 times pickup TOC, verifying that the operating times are within the margins indicated in Table 6–1: PICKUP TIMES FOR VARYING MULTIPLES OF PICKUP (MPU) DIAC Type 66K Digital Overcurrent Relay GE Power Management...

  • Page 43: Toc / Instantaneous Hdo Unit - Inverse Time

    PICKUP VERIFICATION • Connect the relay as indicated in Figure 6–2: DIAC 66K TOC INVERSE TIME TEST SETUP. In order to apply current to the relay, use a 50/60 Hz voltage source, with a variable resistor in series, or an electronic current source.

  • Page 44: Verification Of Operating Time

    VARYING MULTIPLES OF PICKUP (MPU) on page 6–3. With the relay still connected as indicated in Figure 6–2: DIAC 66K TOC INVERSE TIME TEST SETUP, set the time overcurrent unit to minimum pickup and set the corresponding time dial to 5. Enable the Instantaneous HDO settings by setting the pickup to the lowest setting (not including zero).

  • Page 45: Instantaneous Hdo Unit

    Connect the relay as shown in Figure 6–2: DIAC 66K TOC INVERSE TIME TEST SETUP on page 6–4. Set the instantaneous unit pickup to 2 Amps (for the 5 Amp rated relay) or 0.4 Amps (for the 1 Amp rated relay) with a zero IOC delay setting.

  • Page 46: Standard Instantaneous Unit

    40.0 to 160.0 PARALLEL 25.0 † 600.0 † Higher currents I may be applied for shorter lengths of time t in accordance with the formula: , K = constant ------- - DIAC Type 66K Digital Overcurrent Relay GE Power Management...

  • Page 47: Periodic Tests

    6.11 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 with the GE Power Management technical support.
  • Page 48 6 ACCEPTANCE/PERIODIC TESTS GEK-106261 Figure 6–4: REAR, FRONT, AND TOP VIEWS OF THE DIAC TYPE 66K INTERIOR DIAC Type 66K Digital Overcurrent Relay GE Power Management...
  • Page 49 GEK-106261 6 ACCEPTANCE/PERIODIC TESTS Figure 6–5: DIAC 66K FRONT AND REAR VIEWS GE Power Management DIAC Type 66K Digital Overcurrent Relay...
  • Page 50 6 ACCEPTANCE/PERIODIC TESTS GEK-106261 DIAC Type 66K Digital Overcurrent Relay GE Power Management...
  • Page 51 5 5 6 7 8 5 5 6 7 6 7 8 1AMP Model Figure 7–1: BURDEN CURVE BURDENS: 0.1A / 0.5 A unit 0.45 VA 1.0A / 5.0 A unit 2.6 VA GE Power Management DIAC Type 66K Digital Overcurrent Relay...
  • Page 52 Per IEC 60255-22-3 ELECTROSTATIC DISCHARGE Per IEC 60255-22-2 NOTE: The DIAC Type 66K relay must be powered up at least once per year to avoid deterioration of electrolytic capacitors and subsequent relay failiure. DIAC Type 66K Digital Overcurrent Relay GE Power Management...
  • Page 53 ADDITION/CHANGE GEK-106261B (to GEK-106261C) cover Updated GE contact information and manual part number. Moved warning concerning electrolytic capacitor deterioration to the SPECIFICATIONS chapter. Updated Figure 4-2 to reflect the correct taps for 2 A and 0.2 A. GE Power Management...
  • Page 54 A.1 CHANGE NOTES APPENDIX A DIAC Type 66K Digital Overcurrent Relay GE Power Management...
  • Page 55 66 LONG TIME TOC CURVES ........2-7 FRONT VIEW .............. 1-1 75 SHORT TIME TOC CURVES ........2-8 FRONT VIEW OF DIAC 66K ......... 6-9 77 TOC CURVES ............2-9 FUNCTIONAL BLOCK DIAGRAM ......... 1-2 95 SHORT TIME TOC CURVES ......... 2-10 HANDLING ..............
  • Page 56 RATINGS ..............2-2, 7-2 55 short time ..............2-5 RATINGS OF TARGET AND SEAL-IN COIL ....2-2 57 medium time ............2-6 REAR VIEW OF DIAC 66K ........... 6-9 66 long time ...............2-7 RECEIVING ..............4-3 75 short time ..............2-8 RESET TARGETS ............4-3 95 short time ............
  • Page 57 NOTES GE Power Management DIAC Type 66K Digital Overcurrent Relay...
  • Page 58 GE POWER MANAGEMENT WEBSITE The latest product information for the DIAC 66K relay is available on the Internet via the GE Power Manage- ment home page: JVVRYYY)'KPFWUVTKCNEQORO This site provides access to the following customer services: • Digital Products Directory •...
  • Page 59 NOTES GE Power Management DIAC Type 66K Digital Overcurrent Relay...

This manual is also suitable for:

Spdv130.a03

Table of Contents