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GE EntelliGuard G Application Manual
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GE EntelliGuard G Application Manual

Power circuit breaker
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EntelliGuard
G
Power Circuit Breaker
Application Guide
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Courtesy of NationalSwitchgear.com

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Summary of Contents for GE EntelliGuard G

  • Page 1 ® EntelliGuard Power Circuit Breaker Application Guide imagination at work Courtesy of NationalSwitchgear.com...

  • Page 2: Table Of Contents

    Contents Section Page Introduction .........1 Features and Characteristics .

  • Page 3: Introduction

    UL 1066 NEMA SG3&5 EntelliGuard G devices are available in all standard, 100% rated, ANSI, UL and IEC ratings in both fixed and draw-out designs. Standard devices are also offered in 4 pole designs. No compromise (e.g., derating) is necessary in the system protection scheme as the EntelliGuard G Neutral poles are fully rated.
  • Page 4 5,000 4000 5,000 3,000 2,000 5000 5,000 2,000 1,500 NOTE: GE internal quality testing requirements exceeded 20,000 mechanical operations. Non-Automatic Circuit Breaker/Molded Case Switch – UL Version Rated Endurance Short Envelope Type Amps Interrupting Minimum Mechanical Minimum Electrical Minimum Electrical...

  • Page 5: Features And Characteristics

    EntelliGuard G Power Circuit Breaker Section 2. Features and Characteristics EntelliGuard G at a glance Secondary disconnects – Accessory windows combination terminals Padlock provision Retractable handle for manual spring charging Detailed, factory- assembled side label Operating buttons: EntelliGuard TU ON/OFF...
  • Page 6 ANSI/UL 400 - 2000 2000 - 3200 3200 - 5000 Reverse Feed EntelliGuard G devices can be fed from top or bottom terminals. Two-Step Stored Energy Mechanism EntelliGuard G operates via stored energy mecha- nisms that can be manually charged (MO) or elec- trically charged (EO) by the Spring Charging Motor.
  • Page 7 Section 2. Features and Characteristics Electrical Closing Button Located on the front cover; electrically closes breaker. Ready to Close Indicator Provides visible indication/readiness for close operation. Mounting Straps/Accessories Kits are available to mount and connect fixed/ stationary breakers. Thermal Sensing One sensor per pole continuously monitors the temperature of the current path (optional).
  • Page 8 Provides local record of the cumulative number of complete breaker closing operations. Cable Interlocks Available for fixed and draw-out breakers, these units enable direct interlocking of EntelliGuard G circuit breakers. Bell Alarm Contact Available with or without a mechanical lockout feature, the bell alarm operates whenever the breaker trips due to a protective function.

  • Page 9: Entelliguard Tu Trip Unit System

    This section describes the functions as implemented flash hazard problems without excessive sacrifice in the EntelliGuard G UL 489 and ANSI/UL 1066 circuit of system reliability, in terms of selectivity. breakers. References or comparisons to other GE circuit breakers are for informational purposes only.
  • Page 10 9kA in a variety of configurations. From arc in box. Using the optimized Short Time band Table 3.1 it can be seen that an EntelliGuard G circuit allows the system to stay at HRC2 most of the time breaker clearing Instantaneously can maintain and always less than HRC4.
  • Page 11 An EntelliGuard TU Universal Spare Trip a nuisance trip at the main. Allowing for a 10% Unit can be installed in any EntelliGuard G circuit breaker, regardless of frame size, sensor size, tolerance in the pick up current of both trips, the upper boundary of the main’s trip may be estimated...
  • Page 12 20 year old needed, thus providing arc flash hazard control ANSI circuit breaker or for a new production while preserving complete EntelliGuard G circuit breaker. selectivity. • Traditional fuse shaped curves and thermal circuit Terms breaker type curves are now available.
  • Page 13 Section 3. EntelliGuard TU Trip Unit System against closing on high magnitude faults. The MCR setting. Long Time pickup setting multipliers are function immediately trips/opens the circuit user settings and may range from 0.05 to 1.0 in breaker if high magnitude fault current is sensed increments of 0.05.
  • Page 14 Short Time pickup settings range from 1.5 to 12 times the Long Time pick up setting for the Thermal Memory EntelliGuard G circuit breakers in Envelopes 1 and The Long Time and Short Time pick up algorithm 2. The maximum Short Time pick up for Envelope 3 also includes a cooling cycle that keeps track of is 10.
  • Page 15 When using the EntelliGuard trip unit in systems and trip systems to provide required selectivity while that also employ older GE MVT trip units, the not sacrificing any more clearing time than required EntelliGuard Trip Unit’s maximum I t slope is equal to provide the best possible arc flash protection.
  • Page 16 Section 3. EntelliGuard TU Trip Unit System intersection of the Short Time pick up and the Sequence phasor signal from an external Zero Short Time delay band with the I t slope varies Sequence CT or residual summation scheme. with the Short Time pick up and time delay band. Either Ground Fault method may be used to provide Ground Fault trip or Ground Fault alarm.
  • Page 17 942 milliseconds. In Power Break I, • Adjustable Selective Instantaneous: Provided on Power Break II, WavePro and AKR circuit breakers, Power Break II, WavePro, AKR and EntelliGuard G. the minimum GF Time Delay Band is 58 milliseconds • Extended Range Adjustable Selective Instantaneous: and the maximum is 417 milliseconds.
  • Page 18 Instantaneous function, allowing up to the circuit breaker’s full withstand level. For several breakers with overlapping Instantaneous Table 3.7 Maximum Adjustable Instantaneous Pick-up for EntelliGuard G CBs with Normal or Extended Range Option Withstand Rating “In” (Plug Rating, A)
  • Page 19 Section 3. EntelliGuard TU Trip Unit System protection to be selective with each other. Because setting. In all other cases, in the EntelliGuard G each circuit breaker is set to trip Instantaneously family of circuit breakers, the HSIOC is set high...
  • Page 20 This form of Instantaneous protection is provided on all EntelliGuard G circuit breakers. This function When the EntelliGuard TU trip unit has the RELT provides protection in case the circuit breaker is...
  • Page 21 6000A 6400A to lower the Long Time adjustment range of the 1 WavePro & AKR only. Entelliguard G min. trip plug is 150A sensor provided in the circuit breaker. 2 PowerBreak only. Entelliguard G min. trip plug is 150A 3 WavePro & AKR only. Entelliguard G min. sensor is 400A 4 PowerBreak only.
  • Page 22 Table 3.11 lists the plugs available for each sensor in the various circuit breakers in which EntelliGuard TU may be installed. Table 3.11 EntelliGuard G Rating Plug Logic (UL 489, UL 1066, IEC) Breaker Frame / Sensor (A) UL/ANSI IEC...
  • Page 23 Metering 2 Advanced (A, V, E and P) connected control power or a portable power supply 3 Diagnostic (Advanced and WFC) Table 3.13 Relay Functions Available in EntelliGuard G Circuit Breakers with EntelliGuard TU Trip Units Output Serial Output Functions...
  • Page 24 Section 3. EntelliGuard TU Trip Unit System Relay Functions Under-Voltage Relay Zero-Volt Trip Enable The Entelliguard TU offers various protective and This function determines if the relay trips when all alarm relay functions that may be displayed on three-phase voltages drop to zero volts. Uses the the LCD screen, assigned contact outputs or com- same timing set for the Under-Voltage Relay.
  • Page 25 The number of outputs available varies by breaker. alarm’s ON/OFF pickup settings are user adjustable The Entelliguard G circuit breaker has 3. These from 0.5 to 1.0 xIn in steps of 0.05. The trip unit does outputs are relay contact outputs to secondary not allow the current alarm OFF set-point to be set disconnect.
  • Page 26 Section 3. EntelliGuard TU Trip Unit System Reduced Energy Let-Through Switch Wiring is available to change the setting. The trip unit The RELT switch may be connected to a manually does not require its own control power to accept a operated two-position switch, a remote sensor, or RELT input and change the Instantaneous trip both simultaneously.
  • Page 27 Section 3. EntelliGuard TU Trip Unit System Figure 3.13 Long Time “Thermal Type” Delay Bands. MULTIPLE OF LONG-TIME PICKUP .5 .6 .7 .8 .9 1 6 7 8 9 10 50 60 70 80 90 1000 1000 Nominal Clearing and Commit Times for X Multipliers of Nominal Pickup. Curve Commit Clear Commit...
  • Page 28 Section 3. EntelliGuard TU Trip Unit System Figure 3.14 Long Time “Fuse” Delay Bands. MULTIPLE OF LONG-TIME PICKUP .5 .6 .7 .8 .9 1 6 7 8 9 10 50 60 70 80 90 1000 1000 Nominal Clearing and Commit Times for X Multipliers of Nominal Pickup. Curve Commit Clear...
  • Page 29 Section 3. EntelliGuard TU Trip Unit System Figure 3.15 Short Time Bands MULTIPLE OF LONG-TIME PICKUP 6 7 8 9 10 50 60 70 80 90 6 7 8 9 10 50 60 70 80 90 1000 1000 Sensors Max ST Pickup Envelope 1 400-2000A Envelope 2...
  • Page 30 Section 3. EntelliGuard TU Trip Unit System This page intentionally left blank. Courtesy of NationalSwitchgear.com...
  • Page 31 3200 4000 5000 6000 Sensor for Entelliguard G CB Icw Entelliguard G, Envelope 1 Short Time OFF Entelliguard G, Envelope 2 Short Time OFF Entelliguard G, Envelope 3 Short Time OFF Entelliguard G Standard Range Envelope 1 Entelliguard G Standard Range Envelope 2...
  • Page 32 Notes Courtesy of NationalSwitchgear.com...

  • Page 33: Accessories

    Motorized Spring Charging Unit Accessory Mounting The unique motor/gearbox unit is specially designed to operate with the full range of EntelliGuard G. It is easily fitted with three heavy-duty bolts. After a breaker close operation, the unit automatically recharges the spring and makes it ready for immediate open and re-close should the need arise.
  • Page 34 Section 4. Accessories electrical closing signal must be released before indication via the secondary disconnects and trip further close commands are attempted; a cut-off unit. Status indication switches are available for is initiated if the closing signal is maintained. See closing coils, shunt trip and under voltage release.
  • Page 35 Section 4. Accessories Time Delay Module (TDM) for UVR Remote Operation Coil Combination An optional time-delay version of the UVR sets an Each breaker accepts a maximum of four coils in adjustable time delay before the device trips the the combinations shown in Table 4.7. All coils are circuit breaker, preventing nuisance tripping from mounted from the front and snap onto the mech- a momentary voltage drop.
  • Page 36 Baseplate & Mechanism for Castell Locks GBPCAS between related, separate circuit breakers. NOTE: Baseplate & Mechanism for Ronis & Profalux Locks GBPRONP Locks and keys are not supplied by GE. Please Baseplate & Mechanism for Kirk Key Locks GBPKK order separately from your local supplier.
  • Page 37 EntelliGuard G circuit breakers, either mounted contacts for local or remote electrical indication of side-by-side or stacked. The interlocking mechanisms the circuit breaker status: CONNECTED, TEST and are connected by a specially designed cable or rod DISCONNECTED.
  • Page 38 Section 4. Accessories Table 4.15 Interlock Configurations Typical Circuit Interlock Configuration Possible Combinations Type A 1 from 2 way interlock 2 cable configuration Interlocking between 2 circuit breakers 1 normal power supply Circuit breaker B1 can close only if B2 is open 1 generator (emergency) supply Circuit breaker B2 can close only if B1 is open Type B...
  • Page 39 Section 4. Accessories Bell Alarm Secondary Disconnects The bell alarm provides remote indication that (Factory-installed/Field Installable) the circuit breaker has opened because of an Inputs and outputs to the circuit breaker are wired electrical fault. through secondary disconnects located on the top of the breaker.
  • Page 40 Section 4. Accessories Table 4.20 Secondary Disconnect Block A Wiring Diagram and Terminals 3 Layer Secondary Disconnect with Basic GTU & Basic Accessories Motor Motor NO/RTC NO/RTC ST2/UV2 ST2/UV2 ST1 CC Nu CC Ph CC Ph O/P1a O/P1b O/P2a O/P2b 24V+ 24V- BA NC...
  • Page 41 Section 4. Accessories Neutral Rogowski Earth Leg CTs Table 4.20 Table 4.22 Envelope Current Rating (A) Cat. No. Current Rating (A) Cat. No. GNRC04H GELCT04 600/630 GNRC07H GELCT07 GNRC08H GELCT08 1000 GNRC10H 1000/1250 GELCT13 1200/1250 GNRC13H 1600 GELCT16 1600 GNRC16H 2000 GELCT20 2000...
  • Page 42 Section 4. Accessories Cassette/Substructure The drawout mechanism allows the breaker to be racked in four distinct positions (CONNECTED, TEST, DISCONNECTED, WITHDRAWN). Position Indicators Position indicators provide a positive mechanical indication of CONNECTED, TEST and DISCONNECTED positions of the breaker. Rejection Device A factory-installed rejection feature prevents mis- matching breakers and cassettes/substructures.

  • Page 43: Catalog Numbering Guide

    EntelliGuard G Power Circuit Breaker Section 5. Catalog Numbering Guide EntelliGuard G Circuit Breaker Catalog Number Guide See following pages for details. Sample Cat. No. Digit 3 & 4 15 16 & 17 18 Rating Family Plug Device Advanced & Type Features &...
  • Page 44 NOTES: 85,000 65,000 65,000 50,000 • Top-mounted Secondary Disconnects (TSD) are the standard configuration for small envelope EntelliGuard G breakers (Type N and H, 400-2000A); pricing per Side 85,000 85,000 85,000 50,000 Mounted pricing sheets (A, B, C, D). 100,000...
  • Page 45 Section 5. Catalog Numbering Guide Digit 8 Closing Devices Digit 11 2nd Shunt Trip or UVR Type Code Type Code 24 Vdc 24 Vdc 30 Vdc 30 Vdc 40 Vdc; 48V 40 Vdc; 48V 2nd UVR with 60 - 72 Vdc Fixed Time 60 - 72 Vdc Closing Coil...
  • Page 46 Refer to Entelliguard Trip Unit Application Guide for detailed descriptions and configuration. Some installations use multiple power sources that are required to supply energy simulta- neously, alternately, or, in a specified sequence. EntelliGuard G Circuit Breakers can be used to interconnect these sources and be electrically and mechanically interlocked to provide the necessary transition and protection.
  • Page 47 Section 5. Catalog Numbering Guide Digit 18 Zone Selective Interlocking (ZSI) Digit 20 Rating Plug Zone Selective Interlocking Code Rating Plug Cat. No. Code ZSI, Short time and GF; user selectable GTP0150U0404 Z + IOC or HIOC ZSI; user selectable GTP0200U0404 Blank/None GTP0225U0406...
  • Page 48 Notes Courtesy of NationalSwitchgear.com...

  • Page 49: Application Data

    EntelliGuard G Power Circuit Breaker Section 6. Application Data The EntelliGuard G family of circuit breakers and All Types related switching devices is a truly global line of • Stationary mounting capability with rear or front protection and switching devices. It was designed...
  • Page 50 (higher X/R) than the test power factor, the Short Circuit Interrupting Ratings circuit breaker’s short circuit rating must be The EntelliGuard G family of UL devices is available adjusted to compensate for the fault’s lower PF. with short circuit ratings as high as 150kA at 480V, The adjustment is performed as shown in Figure 6.1.
  • Page 51 An instantaneous override is used in some sensing methods. In the case of the EntelliGuard G family of circuit breakers, high withstand ratings circuit breakers to ensure that, if a fault exceeds...
  • Page 52 20,000 electrical and mechanical operations are possible. Table 6.2A Table 6.2C EntelliGuard G Circuit Breaker Close and Latch Ratings, EntelliGuard G Non-Automatic Switch Close and Latch Ratings, UL 489 Listed UL 489 Listed...
  • Page 53 2. Actual installed ambient temperature ability to conduct heat from the circuit breaker. If 3. System operating frequency an EntelliGuard G circuit breaker is used with cables 4. Altitude of the installation directly connected, contact your GE application 5. Type of loading of the protected circuit, engineer for information to ensure proper cabling 6.
  • Page 54 The type of load and its duty cycle must be con- breaker and not the temperature of the air outside sidered in the application of EntelliGuard G circuit the breaker’s enclosure. Room or outside air tem- breakers. Loads such as capacitors and electro-...
  • Page 55 Section 6. Application Data Table 6.3C Operational Ratings, IEC Circuit Breakers Mechanical Mechanical Electrical Operations - No Maintenance Envelope Frame Operations - Operations - 440V AC 690V AC 1000V AC No Maintenance With Maintenance 400-1600A 12500 20000 10000 8000 2000A 12500 20000 8000...
  • Page 56 Notes Courtesy of NationalSwitchgear.com...

  • Page 57: Physical Data

    EntelliGuard G Power Circuit Breaker Section 7. Physical Data Dimensions & Weights To download detailed drawings, visit www.geelectrical.com. Dimensions in inches are approximate and rounded. Dimensional tolerances are ±1 mm. 3-pole, UL/ANSI Width Depth Height Weight Type Design Fixed/Stationary Envelope 1, Side-mounted...
  • Page 58 Notes Courtesy of NationalSwitchgear.com...

  • Page 59: Standards And References

    11 West 42nd Street, European ROHS Directives New York, NY 10036 USA GE Consumer & Industrial Engineering Test Procedures (ETPs) and Standing Instructions (S.I.s) Standing Instructions (S .I .s): S.I. International Electrotechnical Committee (IEC) 900001S001 - Program Technical Review Discipline IEC 60947-1 (Ed.
  • Page 60 Notes Courtesy of NationalSwitchgear.com...
  • Page 61 Courtesy of NationalSwitchgear.com...
  • Page 62 EntelliGuard, WavePro and PowerBreak are registered trademarks of the General Electric Company. 41 Woodford Avenue Plainville, CT 06062 www.geelectrical.com/revolution imagination at work DET-653 (07/08) Courtesy of NationalSwitchgear.com...