GE AKD-10 Скачать руководство пользователя страница 51 | Manualshive

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50

NEMA 3R outdoor, walk-in protected aisle — floor plan and cable space details

Note: Refer to installation drawing and AKD-10 switchgear installation manual (DEH-194) for additional information

À

Non-fused breakers (14" rear extension)

Á

With WPF-08/16 (7" rear extension)

®

With 5000 Amp Main Bus and WPS/WPX-50

¯

5000 Amp Bus w/o WPS/WPX-50 and w/o WPF-08/16 (7" rear extension)

Refer to Table 32.1 and 32.2 for equipment depth options.

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Содержание AKD-10

Страница 1: ...GE Consumer Industrial Electrical Distribution imagination at work AKD 10 Application Guide Featuring WavePro Low Voltage Power Circuit Breakers ...

Страница 2: ...current tripping characteristics 19 The Load Center Principle 23 Power circuit breaker selection tables 25 Ground detection considerations 29 Automatic transfer throwover equipment 31 Sizing and dimensional data 32 Switchgear layout and sizing 33 POWER LEADER instrument door 43 Breaker Instrument Panel 44 Floor plans and side views 45 WavePro breaker wiring diagram 51 WavePro breaker catalog numbe...

Страница 3: ...2 ...

Страница 4: ...pped with current limiting fuses WPF 08 and WPF 16 are provided with integrally mounted fuses while a separate fuse carriage is required for WPS 20 WPS 32 WPS 40 and WPS 50 type breakers Low voltage circuit breakers rated 800 1600 2000 amps can be stacked in four high combinations resulting in reduced floor space requirements The 11 gauge bolted modular designed steel frame permits flexibility in ...

Страница 5: ...ess to the wiring terminations An engraved circuit nameplate for the breaker is also provided on the panel Closed door trip unit setup and display All WavePro breakers used in AKD 10 switchgear have front mounted trip units This puts all trip unit information out where operators can have full and safe access to it without opening the breaker door Depending on the trip unit supplied the following i...

Страница 6: ...g and isolates each phase of the vertical riser bus is available as an option Accessibility to main bus joints is provided by replaceable covers and no live connections are reachable from the rear except the breaker load side terminals Bus compartmentation is also available as an optional feature on AKD 10 switchgear Vertical and horizontal buses are isolated from the cable compartment by glass re...

Страница 7: ...ipment will accept any combination of up to three padlocks with 1 4 to 3 8 diameter shank Expansion capabilities AKD 10 switchgear is designed to be easily expanded to handle increased loading It is very common to specify fully equipped future breaker cubicles when ordering a substation or line up The fully equipped future breaker cubicle con tains line and loadside primary disconnects drawout rai...

Страница 8: ...it elements located in instrument panel as well as convenient inspection of the bolted bus connections Cable space Conduit entrance area meets NEC requirements Extended depth frame options are available in 7 and 14 sizes for applications requiring additional cable space Section width can also be increased from 22 to 30 or 30 to 38 for additional cable space Breaker lifting device Installed on top ...

Страница 9: ...with thermal overload protection The control box on the end of the 30 foot cord has a single pushbutton to control the operation of the remote racking device providing the operator the capability to stand outside the arc flash boundary while racking a circuit breaker into or out of its cubicle GE s manufacturing processes and testing set the quality standards in the switchgear industry Paint finis...

Страница 10: ...ddition AKD 10 has been qualified to IEEE 693 1997 for Moderate and High Seismic loading conditions Complete and accurate documentation The AKD 10 design makes extensive use of computer aided engineering and design All customer documentation is generated via linked engineering and pro duction systems for seamless ordering of materials and manufacturing of parts This integration and linking of syst...

Страница 11: ... graphic displays of component status and operation Extensive device library Sophisticated waveform analysis tools Comprehensive alarm and event reporting to immediately diagnose electrical system problems Energy cost management Predictive maintenance Power quality analysis Technical assistance start up support and on site training It should come as no surprise that virtually all switchgear is now...

Страница 12: ...erload short circuit ground fault trips Enhanced MicroVersaTrip Plus and MicroVersaTrip PM trip units also measure true rms currents and voltages for MicroVersaTrip PM trip units The higher sampling rate 64 times per cycle allows waveform measurements up to the 31st harmonic to achieve accuracy of 99 MicroVersaTrip Plus and MicroVersaTrip PM trip units contain a digital liquid crystal display with...

Страница 13: ...PS 50 Á 5000A 5000A 5000A and below 12 Application data Basic ratings WavePro low voltage power circuit breakers are available in various levels of interrupting capacity IC and are identified with a suffix in the model number WPS indicates standard IC WPH indicates high IC WPX indicates extended IC and WPF indicates integrally fused High IC and extended IC breakers are used with larger kVA substat...

Страница 14: ...nually close the breaker Once the breaker is closed loss of voltage will not trip the breaker A manual bypass interlock is provided for initial startup Refer to the undervoltage device for ratings and coil characteristics Note Interlocking of electrically oper ated breakers does not require an electrical lockout device Table 13 6 Fuse and Fan WP 50 Breaker accessory The WP 50 breaker is provided w...

Страница 15: ...t is withdrawn Up to two key positions can be accommodated in each breaker cubicle Table 14 3 Key Interlock Applications Lifting Tool Equipment accessory The lifting tool is the interface between the breaker and the overhead breaker lifting device or any other portable lifting means that may be used for installing and removing the WavePro drawout breakers It attaches to the breaker to provide stab...

Страница 16: ...ngs of the breaker are fully charged This option is available on manually or electrically operated breakers The contact is rated 4 0 amps at 120Vac and 0 5 amps at 125Vdc Table 15 3 Field Installable Remote Charge Indicator Switch Kit catalog numbers Remote Close Accessory with One Shot Electronic Close Circuit Field installable kit available Breaker accessory The remote close accessory is an elec...

Страница 17: ...e spring charging cycle spring charging can be completed using the integral manual pump handle The optional remote charge indicator contact can be supplied to provide a contact closure when the springs are fully charged Control voltage WP 08 16 20 WP 32 40 50 120v 60Hz WPS2SF60120 WPS2LF60120 240v 60Hz WPS2SF60240 WPS2LF60240 24Vdc WPS2SFDC024 WPS2LFDC024 110 125Vdc WPS2SFDC125 WPS2LFDC125 250Vdc ...

Страница 18: ... under short circuit conditions Nevertheless modern circuit breakers mechanisms are capable of many operations under full load operation and in rush conditions such as those encountered in motor starting applications Industry standards have been established for the minimum performance as indicated in Table 18 1 With adequate maintenance GE breakers can be expected to exceed the standards WavePro b...

Страница 19: ...ker temperature for Class A insulation Continuous current ratings of WavePro breakers must be derated for ambient temperatures above 40 C Trip unit ambient is limited to 70 C Table 18 3 Continuous current derating factors À Trip unit maximum Altitude correction factors When applying low voltage power circuit breakers at altitudes greater than 6 600 feet their continuous current rating must be modi...

Страница 20: ...le 19 1 Time current curves Cable terminations Cables used for low voltage power circuit breaker terminations in AKD 10 must have minimum 90 C insulation while the cables ampacity will be based on a 75 C rating This meets the requirements of ANSI C37 20 1 UL1558 and the National Electrical Code Refer to the example for typical cable ampacities derating factors that may apply are not shown Table 19...

Страница 21: ... Voltage Rating 600 Vac nominal 4 4 8 0 3 5 4 5 5 5 7 5 6 5 8 5 Max 3 Min 1 Int 2 1 5 Application Determines End of Curve 5 6 7 8 9 2 3 4 5 6 7 8 1 9 10 20 30 40 50 60 70 80 90 100 1000 900 800 700 600 500 400 300 200 100 90 80 70 60 50 40 30 20 10 9 8 7 6 5 4 3 2 1 9 8 7 6 5 4 3 2 1 09 08 07 06 05 04 03 02 01 5 6 7 8 9 2 3 4 5 6 7 8 1 9 10 20 30 40 50 60 70 80 90 100 MULTIPLES OF CURRENT SETTING ...

Страница 22: ...sTM MicroVersaTrip PMTM Series RMS 9D or Power TM Digital RMS Trip Units Ground Fault Time Current Curves Curves apply at 50 to 60 Hertz and from 20 C to 55 C breaker ambient 20 C to 70 C trip unit ambient Settings Glossary S or CT Current Sensor Rating in amps MicroVersaTrip Plus PM Adjustments Ground Fault Function Pickup settings in multiples of Current Sensor Rating S Pickup Setting in S or CT...

Страница 23: ...22 ...

Страница 24: ... having a high ratio of running motor nameplate horsepower to actual demand such as may occur in heavy machining or stamping press operations This condition could also exist when a secondary selective system operates with one main breaker open and one main and one tie breaker closed so that the feeder breaker can see twice the normal motor contribution to a short circuit For these types of systems...

Страница 25: ...les Application tables are based on the following factors A three phase bolted fault at the low voltage terminals of the substation Transformer impedance listed in table only source of power to the bus is the substation transformer Total connected motor kVA does not exceed 50 of transformer rating at 208Y 120 volts and 100 of transformer rating at 240 480 and 600 volts The motor contribution is ta...

Страница 26: ...41100 46700 1000 150 2776 43300 48900 WPH 08 WPH 08 5 75 250 Â 3886 45100 5600 50700 WPS 32 WPX 08 500 46700 52300 WPX 08 WPX 08 750 47200 52800 Unlimited 48300 53900 50 47600 55900 WPX 08 WPX 08 WPX 08 100 57400 65700 1500 150 61700 70000 5 75 250 4164 65600 8300 73900 WPS 50 WPH 32 WPS 32 WPS 32 500 68800 77100 750 Â 5830 70000 78300 Unlimited 72400 80700 À With transformer operating on base tem...

Страница 27: ...PS 32 WPX 08 500 40400 50000 750 40900 50500 WPX 08 WPX 08 Unlimited 41800 51400 50 41200 55600 WPX 08 WPX 08 WPX 08 100 49800 64200 1500 150 3608 53500 67900 5 75 250 Â 5052 56800 14400 71200 WPS 40 500 59600 74000 WPH 32 WPS 32 WPS 32 750 60600 75000 Unlimited 62800 77200 50 49300 68500 WPH 32 WPS 32 WPS 32 100 62100 81300 2000 150 67900 87100 5 75 250 4811 73500 19200 92700 WPS 50 500 78200 974...

Страница 28: ... 31000 40600 2000 150 2406 34000 43600 5 75 250 Â 3368 36700 9600 46300 WPS 32 500 39100 48700 WPX 08 WPX 08 WPX 08 750 40000 49600 Unlimited 41800 51400 50 28000 40000 WPH 08 WPH 08 WPH 08 100 36400 48400 2500 150 3007 40500 52500 5 75 250 Â 4210 44500 12000 56500 WPS 32 WPX 08 WPX 08 WPX 08 500 48100 60100 750 49400 61400 Unlimited 52300 64300 50 30700 45100 100 41200 55600 WPX 08 WPX 08 WPX 08 ...

Страница 29: ...5 75 250 Â 3368 35600 9600 45200 WPS 32 500 38500 48100 WPX 08 WPX 08 WPX 08 750 39500 49100 Unlimited 41800 51400 WPH 16 WPH 16 WPH 16 50 24600 36100 WPH 08 WPH 08 WPH 08 100 33000 44500 WPX 08 WPX 08 WPX 08 3000 150 2887 37200 48700 5 75 250 Â 4041 41500 11500 53000 WPS 32 500 45500 57000 WPH 16 WPH 16 WPH 16 750 46900 58400 Unlimited 50200 61700 50 27200 41600 WPH 08 WPH 08 WPH 08 100 38000 524...

Страница 30: ...ms consists of one set of three potential transformers rated for full phase to phase voltage on the primary winding and 120 volt secondary winding The primary is connected wye The secondary con nection is dependent on the type of ground indicators and alarm devices used A loading or stabilizing resistor in the potential transformer primary connection to ground is used to prevent ferroresonance wit...

Страница 31: ... operating as networks In some of these cases ground fault protection is best accom plished by using the Ground Break system This system consists of current sensors for each phase and or neutral conductors a relay with separate current pick up and time delay settings and a fault indicator reset device As an option the fault indicator reset device can be replaced by a Monitor Panel In addition to p...

Страница 32: ...thus allowing only two of the three breakers to be closed at any given time Key interlocks can also be provided on substation main sec ondary breakers for interlocking with a transformer primary air switch Operation of the primary air switch open or close is blocked until the main secondary breaker is opened and locked out The key from the main breaker interlock is then removed and inserted in the...

Страница 33: ... top wiring trough and 103 5 over the optional breaker hoist The available breaker stacking space is 84 Optional 78 high indoor equipment with a breaker stacking space of 70 is also available contact factory for details Breaker frame size and type determine the width of the breaker sections and also the minimum depth of the switchgear line up Refer to Tables 31 1 and 31 2 for properly sizing AKD 1...

Страница 34: ...strument panel drawings on page 44 for breaker control device mounting 6 3200A 4000A and 5000A fuse roll outs are the same size as their respective breakers therefore any compartment shown with a 3200 4000 or 5000 amp breaker will also accommodate a fuse roll out and vice versa 7 Front busway connections to a circuit breaker require a blank compartment above the breaker for busway above or a blank...

Страница 35: ...RONT POS N BELOW REAR POS N BUSWAYS 800 2000A MT22 1 B W MAIN 21 21 MT22 8 BUS CONN TIE 21 800 2000A 800 2000A 21 22 21 800 2000A 21 800 2000A CABLE CONN MAIN TIE MT22 3 21 800 2000A 21 21 21 800 2000A 800 1600A 22 800 2000A 800 2000A 800 2000A 22 MAIN TIE 21 21 MAIN TIE 21 21 MAIN TIE 800 2000A 21 21 800 2000A 800 2000A 21 21 800 2000A 22 21 800 2000A 800 2000A 21 21 21 CABLE CONN TIE MT22 9 22 2...

Страница 36: ... TIE 21 21 800 2000A 21 800 2000A 800 2000A 42 21 800 2000A 800 1600A 21 21 800 1600A 22 BUS CONN FDR W CABLE TAP F22 5 22 21 800 2000A 21 800 2000A F22 6 22 42 21 21 800 2000A MT22 15 800 1600A 21 21 F22 1 BUS CONN FEEDER 800 1600A BUS CONN FDR W CABLE TAP F22 7 22 42 800 2000A 21 21 92 21 21 800 2000A 21 800 2000A 800 2000A 21 800 1600A 21 21 800 2000A 21 800 2000A 800 2000A 22 21 800 1600A BUS ...

Страница 37: ...S BUS LOWER UPPER 42 30 WIDE WITH 4 WIRE BUSWAY 21 21 BUSWAY CONN FEEDER BELOW FRONT POS N ABOVE REAR POS N F22 11 22 42 F22 12 21 22 21 BUSWAYS 800 2000A B W ABOVE FRONT POS N BELOW REAR POS N 21 800 1600A 800 2000A BUSWAYS 800 2000A 21 B W 21 800 2000A 800 2000A F22 13 BUSWAY CONN FEEDER 21 22 21 800 2000A BUSWAYS ABOVE FRONT POS N BELOW REAR POS N 21 B W 92 À Refer to page 45 for busway auxilia...

Страница 38: ...Y 30 MAIN TIE B W MT30 3 BUSWAY 30 MAIN TIE 35 3200 4000A 35 14 14 800 2000A 21 VENT 3200 4000A MAIN TIE 35 MAIN TIE 14 MT30 8 BUSWAY CONN MAIN OR TIE 30 21 14 MAIN TIE 35 21 35 3200 4000A MT30 4 ABOVE FRONT POS N BUSWAY BUS CONNECTED MAIN OR TIE 30 14 B W 28 92 LOWER UPPER 14 21 35 MAIN TIE 35 21 BUS 28 3200 4000A BUS MID 14 92 BUS Note 4000A NSP Busway requires a 38 inch wide section CABLE CONNE...

Страница 39: ...N TIE MT30 11 MAIN TIE VENT 800 2000A 21 14 3200 4000A 35 14 VENT 21 800 1600A 14 MAIN TIE 3200 4000A 35 MAIN TIE 14 30 30 MT30 13 CABLE CONNECTED MAIN OR TIE 35 BUS LOWER CABLE CONNECTED MAIN OR TIE MT30 12 14 MID BUS BUS UPPER 92 MAIN TIE 21 35 MAIN TIE 21 800 2000A 35 28 3200A 7 35 3200 4000A 42 92 CABLE CONNECTION OTHER THAN FEEDER BREAKER INCOMING OUTGOING MID BUS LEVEL IS NOT AVAILABLE AT 50...

Страница 40: ...ONNECTION OTHER THAN FEEDER BREAKER INCOMING OUTGOING MID BUS LEVEL IS NOT AVAILABLE AT 5000A USE ONLY UPPER OR LOWER BUS LEVELS LEGEND NOTES FEEDER CABLE CONNECTION BUSWAY CONNECTION B W 30 38 Main tie sections ...

Страница 41: ...N TIE 21 35 5000A 28 81 MINIMUM DEPTH WITH 5000A BREAKERS AND CABLE CONNECTIONS MAIN TIE 21 35 5000A 28 92 MT30 23 BUS CONNECTED TIE 30 7 TIE 21 800 1600A 35 3200A 21 21 800 1600A 21 7 92 BUS LOWER MID BUS UPPER BUS CABLE CONNECTION OTHER THAN FEEDER BREAKER INCOMING OUTGOING MID BUS LEVEL IS NOT AVAILABLE AT 5000A USE ONLY UPPER OR LOWER BUS LEVELS LEGEND NOTES FEEDER CABLE CONNECTION BUSWAY CONN...

Страница 42: ...EDER B W 14 BUSWAY CABLE CONNECTED FEEDER CABLE CONNECTED FEEDER CABLE CONNECTED FEEDER FEEDER F30 10 CABLE CONNECTED FEEDER F30 9 30 35 FEEDER 3200 4000A 35 14 30 35 92 3200 4000A 35 14 FEEDER F30 5 800 2000A F30 4 30 FEEDER 7 35 21 3200A 21 LOWER BUS MID BUS 30 7 35 42 3200 4000A UPPER BUS 92 À 4000A NSP Busway requires a 38 wide section À CABLE CONNECTION OTHER THAN FEEDER BREAKER INCOMING OUTG...

Страница 43: ...ER THAN FEEDER BREAKER INCOMING OUTGOING MID BUS LEVEL IS NOT AVAILABLE AT 5000A USE ONLY UPPER OR LOWER BUS LEVELS LEGEND NOTES FEEDER CABLE CONNECTION BUSWAY CONNECTION B W 30 Main tie feeder sections 38 auxiliary sections ...

Страница 44: ...5 EPM6000 Meter EPM 9xxx 3 Line Display 22 14 4 38 4 38 Power Leader Modbus Monitor 14 5 11 5 21 22 POWER LEADER instrument door minimum compartment size Pulsing High Resistance Ground System EPM9xxx Nexus Touch Screen 14 5 4 8 0 22 ...

Страница 45: ...ovided on the left side of the panel for an engraved laminated plas tic nameplate FUSE FUSE FUSE FUSE CIRCUIT NAMEPLATE 38 WIDE INSTRUMENT PANELS CIRCUIT NAMEPLATE CIRCUIT NAMEPLATE CIRCUIT NAMEPLATE CIRCUIT NAMEPLATE CIRCUIT NAMEPLATE SHUNT TRIP CHARGE CLOSE 2nd SHUNT TRIP SPRING CHARGING MOTOR if separate from Close Ckt Source FUSE FUSE FUSE FUSE FUSE FUSE FUSE FUSE FUSE FUSE FUSE FUSE FUSE FUSE...

Страница 46: ...tails Note Refer to installation drawing and AKD 10 switchgear installation manual DEH 194 for additional information Â If line up includes any WPF 08 16 breakers Ã If line up includes any WPS WPX 50 or WPF 08 16 breakers Refer to Table 32 1 and 32 2 for equipment depth options ...

Страница 47: ...th 482mm 26 50 WPS WPX 50 Above 24 00 None 673mm 609mm Below 26 00 81 with 660mm 7 00 33 50 WPS WPX 50 Above 31 00 177mm 851mm 787mm 67 w 5000 Amp Bus Below 19 00 w o WPS WPX 50 482mm 29 50 w o WPF 08 16 Above 24 00 None 749mm 609mm Below 26 00 74 w 5000 Amp Bus 660mm 7 00 36 50 w o WPS WPX 50 Above 31 00 177mm 927mm w o WPF 08 16 787mm NOTES À CABLES ABOVE AVAILABLE SPACE FOR CABLES REDUCED BY 5 ...

Страница 48: ...utdoor non walk in construction Refer to Table 32 1 and 32 2 for equipment depth options NEMA 3R outdoor non walk in side view and anchoring details Note Refer to installation drawing and AKD 10 switchgear installation manual DEH 194 for additional information ...

Страница 49: ...F 08 WPF 16 5000 Amp Bus w o WPS WPX 50 and w o WPF 08 16 7 rear extension Refer to Table 32 1 and 32 2 for equipment depth options NEMA 3R outdoor non walk in floor plan and cable space details Note Refer to installation drawing and AKD 10 switchgear installation manual DEH 194 for additional information ...

Страница 50: ...1 and 32 2 for equipment depth options NEMA 3R outdoor walk in protected aisle side view and anchoring details Note Refer to installation drawing and AKD 10 switchgear installation manual DEH 194 for additional information ...

Страница 51: ...ing and AKD 10 switchgear installation manual DEH 194 for additional information À Non fused breakers 14 rear extension Á With WPF 08 16 7 rear extension With 5000 Amp Main Bus and WPS WPX 50 5000 Amp Bus w o WPS WPX 50 and w o WPF 08 16 7 rear extension Refer to Table 32 1 and 32 2 for equipment depth options ...

Страница 52: ...AGE AUXILIARY SWITCH CONTACTS CONTACT NOT AVAILABLE WITH FIRST SHUNT TRIP DEVICE OPTION 3 3C A12 A3 L AUX 1 1C A10 A1 L AUX 11 11C C12 C3 L AUX 9 9C C10 C1 L AUX 13 13C C14 C5 L AUX 5 5C 6 6C A5 A6 L AUX A7 14 14C C15 C6 L AUX 12 12C C13 C4 L AUX 10 10C C11 C2 L AUX 4 4C A13 A4 L AUX 2 2C A11 A2 L AUX CONTACT NOT AVAILABLE WITH FIRST SHUNT TRIP DEVICE OPTION CONTACT NOT AVAILABLE WITH SECOND SHUNT...

Страница 53: ...PH B 1 2 C22 C23 N OFLO PH A OPEN FUSE LOCKOUT WPS 20 WPS 32 WPS 40 WPS 50 FRAMES ONLY A28 A29 31 47 T ZSI IN A30 A31 30 46 T ZSI OUT MVT PLUS PM and PM READY ONLY INTERLOCKING INPUT OUTPUT ZONE SELECTIVE TRIP UNIT A24 A25 T NS 49 50 INPUT NEUTRAL SENSOR TRIP UNIT TAP COM 1 2 A22 A23 J UV ELO UNDERVOLTAGE OR ELECTRIC LOCKOUT A26 A27 29 45 T COMM MVT PM PM READY ONLY INPUT COMMUNICATION TRIP UNIT C...

Страница 54: ...lass J fuse E 600A Class J fuse F 800A Class L fuse G 5 1000A Class L fuse H 6 1200A Class L fuse J 7 1600A Class L fuse K 8 2000A Class L fuse L 9 2500A Silver L fuse M 800A Welder limiter N 1200A Welder limiter P 1600A Welder limiter Q 2000A Welder limiter R Frame Sensor Code See Note 1 800 none A 150 B 400 C 800 D 1600 none E 800 F 1600 G 2000 none H 2000 J 3200 none K 3200 L 4000 none M 4000 N...

Страница 55: ... Close 48v DC E 120v 60Hz F 120v 50Hz H 120v 50 60 48v DC N 110v DC P 125v DC Q 250v DC R 240v 60Hz T 240v 50Hz W Requires min 4 stage auxil iary switch and shunt trip Shunt Trip 1 Code none X 120VAC 60Hz 1 208VAC 60Hz 2 240VAC 60Hz 3 70VAC 60Hz 4 120VAC 50Hz 5 208VAC 50Hz 6 240VAC 50Hz 7 Code 24VDC B 48VDC D 110 125VDC E 250VDC F Coil ratings available for Shunt Trip 1 or Shunt Trip 2 All other r...

Страница 56: ...meter switchboard type 1 Accuracy 250 scale Voltmeter switchboard type 1 Accuracy 250 scale Ammeter switch Voltmeter switch Wattmeter Varmeter Power factor meter Watthour meter 2 2 1 2 3 elements with demand register Current voltage test block and plug PK 2 Potential transformers with primary fuses Current transformer Primary rating to 5A Transducer current voltage Watts Vars Pilot lights Breaker ...

Страница 57: ...mpartment barriers Vertical and horizontal buses shall be isolated from the cable compartment by glass reinforced polyester barriers No live connections shall be accessible from the rear except the breaker load side termination Continuous current rating will be determined by temperature rise and limited by ANSI standards and will be demonstrated by design tests If a main circuit breaker bus tie ci...

Страница 58: ...The interrupting mechanism shall contain arc chutes constructed to suppress arcs and cool vented gases Interphase barriers of insulating material shall be provided to isolate each pole of the breaker Circuit breakers shall have true 30 cycle withstand capability equal to its short time interrupting rating to help assure selectivity with downstream devices and minimize nuisance tripping when closin...

Страница 59: ... safety features accessory removal and replacement arc chute removal replacement and contact inspection and maintenance Trip devices Power trip unit 1 Each circuit breaker shall be equipped with a protective trip unit system to open the breaker for overloads short circuits and ground faults as specified in the following subparagraphs The protective trip unit system shall consist of a solid state m...

Страница 60: ...All current sensing shall employ true rms technology for detecting overloads short time overcurrent conditions and ground fault conditions d A high contrast liquid crystal display LCD unit shall display settings trip targets and the specified metering displays The trip unit shall be equipped with long life lithium batteries with automatic time delay shut off feature to provide both programming and...

Страница 61: ...nbalance adjustable pickup 10 to 50 adjustable delay 1 to 15 seconds d Current unbalance adjustable pickup 10 to 50 adjustable delay 1 to 15 seconds e Reverse power selectable direction adjustable pickup 10kW to 990kW adjustable delay 1 to 15 seconds 7 OPTIONAL The trip unit shall include communication capability as follows a The trip unit through dedicated secondary terminals on the breaker shall...

Страница 62: ...ed scanning windows in the rear covers of switchgear sections to facilitate the use of an IR camera for purposes of thermal scanning cable terminations The IR windows shall be an IR transparent mesh for indoor NEMA 1 applications or an IR crystal window for outdoor NEMA 3R applications IR windows shall have a gasketed cover plate secured with tamper resistant hardware Provide a remote racking devi...

Страница 63: ...sures ANSI C37 16 Preferred ratings related requirements and application Recommendations for low voltage power circuit breakers and AC power circuit protectors Order from Sales Department American National Standards Institute 1430 Broadway New York NY 10018 National Electrical Code NEC Order from National Fire Protection Association Batterymarch Park Quincy MA 02269 Other appropriate publications ...

Страница 64: ...63 Notes ...

Страница 65: ...64 Notes ...

Страница 66: ...GE Consumer Industrial 41 Woodford Avenue Plainville CT 06062 www geelectrical com DET 196B 05 07 imagination at work ...

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