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GE DIAC Manual

Digital self powered overcurrent protection
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GEK 105570B


GE Power Management

DIAC DIFC DSFC
Digital Self Powered Overcurrent Protection
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  • Page 1 GEK 105570B GE Power Management DIAC DIFC DSFC Digital Self Powered Overcurrent Protection *(3RZHU0DQDJHPHQW $QGHUVRQ$YHQXH 0DUNKDP2QWDULR &DQDGD/% ZZZJHFRPLQGV\VSP...

  • Page 2: Table Of Contents

    *(.% TABLE OF CONTENTS INTRODUCTION......................3 PRODUCT DESCRIPTION..................... 4 ENERAL PPLICATION UNCTIONS CALCULATION OF SETTINGS..................24 HARDWARE DESCRIPTION..................25 DJUSTMENTS ARGETS ND NDICATORS ESET ND ANUAL RIP RIP IRCUIT EST RIP IRCUIT OVER NSTALLATION ECEIVING ANDLING ND TORAGE INSTALLATION ......................27 NVIRONMENT OUNTING URGE ROUND...
  • Page 3 *(.% LIST OF FIGURES 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 the 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 4: Introduction

    *(.% INTRODUCTION Front View DIFC (8919654) Features · Digital single Phase overcurrent protection · General purpose feeder protection · 50 / 51 applications · Self powered · 16 Selectable curves · Reset curve enable/disable · Low Burden · Fully Retrofitable * ·...

  • Page 5: Product Description

    *(.% PRODUCT DESCRIPTION General Functions Application · · · · · · · · · ·...
  • Page 6 *(.% · · · Reset time · · ì ü ï ï í ý · î ï þ ï Pickup time ì ü 0 014 ï ï í ý î ï þ ï 0 02 Reset time Note ì ü ··································...
  • Page 7 *(.% Reset time Reset time ì ü ì ü ï ï ï ï 5 8 2 í ý í ý î ï þ ï î ï þ ï Pickup time Pickup time ì ü ì ü ï ï ï ï 0103 5 6 4 í...
  • Page 8 # # $ " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS 0358A1104 DIAC, DIFC, & DSFC GES10023 Frequency: 50/60 Hertz IAC 51 Time Dial Range: (0.5 - 9.9) Current Range: 0.5 - 15.9 ( 5 Ampere Relays) 0.1 - 3.18 (1 Ampere Relays) Inverse Standard General Electric CO., 205 Great Valley Parkw ay, M alvern, PA 19355...
  • Page 9 # # $ " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS !#&)# DIAC, DIFC, & DSFC /-5 " Frequency: 50/60 Hertz IAC 53 Time Dial Range: (0.5 - 9.9) Current Range: 0.5 - 15.9 ( 5 Ampere Relays) Very Inverse Standard 0.1 - 3.18 (1 Ampere Relays)
  • Page 10 # # $ " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS 0358A1106 DIAC, DIFC, & DSFC GES10025 Frequency: 50/60 Hertz 55 - ST Time Dial Range: (0.5 - 9.9) Current Range: 0.5 - 15.9 ( 5 Ampere Relays) 0.1 - 3.18 (1 Ampere Relays)
  • Page 11 # # $ " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS 0358A1107 DIAC, DIFC, & DSFC GES10026 Frequency: 50/60 Hertz 57 - MT Time Dial Range: (0.5 - 9.9) Current Range: 0.5 - 15.9 ( 5 Ampere Relays) 0.1 - 3.18 (1 Ampere Relays)
  • Page 12 # # $ " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS 0358A1108 DIAC, DIFC, & DSFC GES10027 Frequency: 50/60 Hertz 66 - LT Time Dial Range: (0.5 - 9.9) Current Range: 0.5 - 15.9 ( 5 Ampere Relays) 0.1 - 3.18 (1 Ampere Relays)
  • Page 13 # # $ " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS 0358A1109 DIAC, DIFC, & DSFC GES10028 Frequency: 50/60 Hertz 75 - ST Time Dial Range: (0.5 - 9.9) Current Range: 0.5 - 15.9 ( 5 Ampere Relays) 0.1 - 3.18 (1 Ampere Relays)
  • Page 14 # # $ " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS 0358A1110 DIAC, DIFC, & DSFC GES10029 Frequency: 50/60 Hertz IAC 77 Time Dial Range: (0.5 - 9.9) Current Range: 0.5 - 15.9 ( 5 Ampere Relays) 0.1 - 3.18 (1 Ampere Relays) Extremely Inverse Standard General Electric CO., 205 Great Valley Parkw ay, M alvern, PA 19355...
  • Page 15 # # $ " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS !#&) DIAC, DIFC, & DSFC /-5! Frequency: 50/60 Hertz 95 - ST Time Dial Range: (0.5 - 9.9) Current Range: 0.5 - 15.9 ( 5 Ampere Relays) Inverse Short 0.1 - 3.18 (1 Ampere Relays)
  • Page 16 # # $ " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS 0358A1112 DIAC, DIFC, & DSFC GES10031 Frequency: 50/60 Hertz IEC Inverse 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 Parkw ay, M alvern, PA 19355...
  • Page 17 # # $ " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS 0358A1113 DIAC, DIFC, & DSFC GES10032 Frequency: 50/60 Hertz IEC VERY INVERSE Time Dial Range: (0.5 - 9.9) Current Range: 0.5 - 15.9 ( 5 Ampere Relays) 0.1 - 3.18 (1 Ampere Relays)
  • Page 18 # # $ " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS 0358A1114 DIAC, DIFC, & DSFC GES10033 Frequency: 50/60 Hertz IEC Ext. Inv. Time Dial Range: (0.5 - 9.9) Current Range: 0.5 - 15.9 ( 5 Ampere Relays) Extremely Inverse 0.1 - 3.18 (1 Ampere Relays)
  • Page 19 # # $ " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS 0358A1115 DIAC, DIFC, & DSFC GES10034 Frequency: 50/60 Hertz IEEE Inverse 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 Parkw ay, M alvern, PA 19355...
  • Page 20 # # $ " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS 0358A1116 DIAC, DIFC, & DSFC GES10035 Frequency: 50/60 Hertz IEEE Very Inv. Time Dial Range: (0.5 - 9.9) Current Range: 0.5 - 15.9 ( 5 Ampere Relays) Very Inverse 0.1 - 3.18 (1 Ampere Relays)
  • Page 21 # # $ " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS 0358A1117 DIAC, DIFC, & DSFC GES10036 Frequency: 50/60 Hertz IEEE Ext. Inv. Time Dial Range: (0.5 - 9.9) Current Range: 0.5 - 15.9 ( 5 Ampere Relays) Extremely Inverse 0.1 - 3.18 (1 Ampere Relays)
  • Page 22 # # $ " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS 0361A7502 DIAC, DIFC, & DSFC GES10038 Frequency: 50/60 Hertz Definite Time 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 Parkw ay, M alvern, PA 19355...
  • Page 23 " # # $ Multiples of Pickup Setting OVERCURRENT RELAYS 0358A1119 DIAC, DIFC, & DSFC GES10037 Frequency: 50/60 Hertz 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 Parkw ay, M alvern, PA 19355...
  • Page 24 " & Multples of Pickup Setting 0361A7503 OVERCURRENT RELAYS DIAC, DIFC, & DSFC GES10039 Frequency: 50/60 Hertz 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...

  • Page 25: Calculation Of Settings

    *(.% CALCULATION OF SETTINGS The formula...

  • Page 26: Hardware Description

    *(.% HARDWARE DESCRIPTION Case 3RLQWHU VW\OHV <HOORZ 2UDQJH :KLWH Adjustments...
  • Page 27 *(.% Targets And Indicators Trip Circuit Test Trip Circuit CAUTION: Cover Installation DIAC and DSFC Reset And Manual Trip Receiving, Handling And Storage...

  • Page 28: Installation

    *(.% INSTALLATION Environment Mounting Surge Ground (DIAC & DSFC) Surge Ground & RFI Immunity (DIFC)
  • Page 29 *(.% FIGURE 18 DIAC and DSFC External / Internal Connections...
  • Page 30 *(.% FIGURE 19 DIFC External / Internal Connections...
  • Page 31 *(.% FIGURE 20 DIAC Panel Mounting and Drilling...
  • Page 32 *(.% FIGURE 21 DIFC Panel Mounting and Drilling...
  • Page 33 *(.% FIGURE 21A SURFACE MOUNTING DIFC...
  • Page 34 *(.% FIGURE 22 DSFC Panel Mounting and Drilling...

  • Page 35: Acceptance Tests

    *(.% ACCEPTANCE TESTS Electrical Tests Visual Inspection Mechanical Inspection Caution...
  • Page 36 *(.% Note Table 1: Pickup Times for Varying Multiples of Pickup (MPU) CURVE* IAC 51 IAC 53 55-ST 57-MT 66-LT 75-ST IAC 77 95-ST IEEE Inverse IEEE Very Inverse IEEE Ext. Inverse IEC Inverse IEC Very Inverse IEC Ext. Inverse Definite Time...
  • Page 37 *(.% Table 2: Pickup Times for Varying Time Dials Time Dial CURVE* IAC51 IAC53 55-ST 57-MT 66-LT 75-ST IAC77 95-ST IEC Inverse IEC Very Inverse IEC Ext. Inverse IEEE Inverse IEEE Very Inverse IEEE Ext. Inverse Definite Time...
  • Page 38 *(.%...
  • Page 39 - Negative + Positive FIGURE 23 DIFC Test Setup for Pickup and Operating Time Verification Start Stop Single Phase Current Source AUX TOC contact - Negative + Positive FIGURE 24 DIAC or DSFC Test Setup for Pickup and Operating Time Verification...
  • Page 40 Current Source AUX IOC contact - Negative + Positive FIGURE 25 DIFC Test Setup for Instantaneous Unit Start Stop Single Phase Current Source AUX IOC contact - Negative + Positive FIGURE 26 DIAC or DSFC Test Setup for Instantaneous Unit...

  • Page 41: Periodic Tests

    *(.% PERIODIC TESTS SERVICING...
  • Page 42 *(.% FIGURE 27 (9819647/8919648) DIAC Front and Rear Views...
  • Page 43 *(.% FIGURE 28 (8919652/8919653) DIFC Front and Rear Views...
  • Page 44 *(.% FIGURE 29 (8919632/8919661) DSFC Front and Rear Views...

  • Page 45: Specifications

    # # $ % & " # # $ % 1AMP Model Input Current OVERCURRENT RELAYS !$)%#" DIAC, DIFC, & DSFC /-5" Power Management 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...

  • Page 46: Ontact Atings

    *(.% Environmental Ratings Burdens Contact Ratings Voltage Cont. Make Break & load carry 1 sec. 125V Resistive 250V 125V .25A Inductive 250V .15A 50VA L/R=40ms 370V .05A...

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