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·lable 3 1 . :

Gould- Shawm ut --

"' E KR' .

t..:J -

u r- used !: reaKer

� - use

ross

Reference

Fuse

Ampere

Obsolete

Gould, Inc.

Class

Rating

General Electric

Equiv.

cat. No.

Cat.

No.

150

GF8B150

A4J150

200

225

250

300

350

400

450

500

600

GF8B600

A4J600

601

GF88601

A4BY601

650

700

800

1 000

1 000 BG

1200

1 200

1200 BG

(i)

1400

1600

1 600

1 600 BG

(i)

2000

2500 STD

GF8B2500

A4BY2500

2500 SPEC

GF9F2500 AK

A4BX2500 GE

3000

GF8F3000

A4BY3000

4000

GF8F4000

A4BY4000 @

Suffix or type BG denotes cut-out on tang.

Used on TAKBSS02 fuse carriage.

Not class

fuse - this is a special "limiter" in size

Used on TAK9SS02 fuse carriage.

and electrical properties (has only short circuit

protection).

Table

31 .3

Allowable Fuse Sizes

Maximum

Breaker

Frame

Rating Plug

Gould-Shawmut

Type

Size

Rating

Class

"L"

Fuse

Size

AKU-25

600A

and

Below

1 200A

800A

1 600A

700A

1 600A

600A

1 600A

AKRU-30, 30S

800A

400A

1 600A

300A

1 600A

225A

and

Below

1 600A

2500A

1 200A

2500A

1 000A

2500A

BOOA

2500A

AKRU-50

1 600A

700A

2500A

600A

2500A

500A

2500A

400A

and

Below

2500A

AKRU-75

3200

3200A and

Below

3000A

��.\��

��

�QQQ� and

Be\ow

40001\

General Electric Type

and

fuses are now

obsolete, and no longer used in type AKRU
low-voltage power circuit breakers.

Gould-Shawmut fuses are now used. The
chart cross-references the obsolete GE
catalog number and the replacement

Gould-Shawmut catalog numbers.

Table 31 .2

Gould-Shawmut -
G E Special " Welder " Limiters ·

for

AKRU-30, -50 Circuit Breakers

Ampere

Obsolete

Gould, Inc.

RaHng

Equiv.

Cat.

No.

Cat.

No.

800

GF30W8

A4BX800

1 000

GF30W10

A4BX1000 BG

1200

GF30W12

A4BX1 200 BG

1 600

GF30W16

A4BX1 600 BG

2000

GF30W20

A4BX2000

The "limiters" are identical in size to the standard class

L fuses; however they provide only short circuit protection.

No overcurrent protection is provided.

Suffix or type BG denotes cut-out on fuse tang.

Minimum

Gould-Shawmut

Class

"L"

Fuse

Class

"J"

Fuse

800A

300A

1 000A

800A
800A

600A
400A

300A
300A

2500A

1 600A
1 000A

800A
700A

600A

500A
450A

2000A

www . ElectricalPartManuals

. com

www

. ElectricalPartManuals

. com

Содержание AKR-30S

Страница 1: ...w w w E l e c t r i c a l P a r t M a n u a l s c o m w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 2: ...ies 23 25 OEM Substructure 26 27 Ratings 28 Derating Factors 29 MicroVersaT rip RMS 9 Current Sensor Ratios 30 AKRU Fuses 31 Electrical Characteristics AKR 30 S 32 33 AKR 30150 T50 34 35 AKR 751100 36 37 Wiring Diagrams 38 T ime Current Tripping Characteristics 39 T ime Current Curves 40 45 Outline Drawings 46 52 Outline Dimension Drawing Numbers 53 Weights and Formulas 54 Repetitive Duty 55 Trans...

Страница 3: ...system selectivity due to their short time AKR 75 AKR 30S 2 capabilities These breakers are UL listed to ANSI stan dards for low voltage power circuit breakers The AKR breaker consists of five frame sizes AKR 308 30H AKR 50 AKRT 50 AKR 75 and AKR 1 00 800 through 4000 Amperes with short circuit ratings through 200 000 Amperes AKR 50 KR 30H w w w E l e c t r i c a l P a r t M a n u a l s c o m w w ...

Страница 4: ... 1 600 AKRT 50H 2000 AKR 75 3200 AKR 100 4000 Frame Size Am s 800 2000 4000 6000 uick Selector Breaker Trip Con b1nations 250Vdc Electromechanical Trip Device A JJJ f 3 w w w E l e c t r i c a l P a r t M a n u a l s c o m w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 5: ...t Trip Devices 600V ac 50 60 Hz Breaker Solid State Type Trip Device AK 25 600 AKS 50 1 600 AKST 50 2000 AKR 75 3000 AKR 100 4000 4 Frame Size Am s 600 2000 4000 6000 250Vdc Electromechanical Trip Device w w w E l e c t r i c a l P a r t M a n u a l s c o m w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 6: ... Type Device Size t t 8 l For Draw Out Substructure Mounting Code Blank A 8 c D s w F Breaker Designations Legend 0 D 1 Code Frame Size in Amperes ac de 25 600 600 30S 800 30 800 800 30H 50 1600 2000 2000 SOH 75 3200 4000 100 4000 6000 IJ SuffiX D IS aff1xed to AKR des1gnat1ons to identify non automatic de models e g AKR NB 300 Mounting Type Draw out AKD Switchgear Draw out AKD 5 6 Switchgear Draw...

Страница 7: ...y removing the prop releasing the spring to close the breaker Closing is initiated by depressing a mechanical close button on the escutcheon 6 This circuit breaker is closed by first rotating the handle counterclockwise approximately 1 00 degrees this resets the mechanism and partially charges the closing spring Return ing the handle clockwise to the normal position completes the spring charging a...

Страница 8: ...ward movement of the solenoid armature which charges the springs to a predetermined over center point for closing For typical electrical circuit see pg 38 The initiation of the closing operation for both of the above types of breakers is by closing of a contact of a remote switch relay or a close button in the front escutcheon if the breaker is so equipped The breakers control schemes have an anti...

Страница 9: ...out fuse carriage or fuse roll out element station Open Fuse Lock Out Indicators 8 ary mounted fused breakers are not available An open fuse lock out device is an integral part of all fused power circuit break ers This device prevents single phasing by monitoring the fuses Should any fuse blow this direct acting device trips the breaker opening all three poles simultaneously Individual phase indic...

Страница 10: ...igned manufactured and tested to NEMA SG5 ANSI C37 20 1 and UL1558 AV LINE R Switchboards Type AKR breakers are furnished as stationar y mounted or draw out substructure mounted in AV LINE switchboards with integrated short circuit ratings The equipment is designed manufactured and tested to NEMA PB 2 and UL 891 9 w w w E l e c t r i c a l P a r t M a n u a l s c o m w w w E l e c t r i c a l P a ...

Страница 11: ...draw out mechanism is breaker mounted The rack ing handle is inserted through the breaker escut cheon on AKR 30 and 50 and through the compart ment door on the AKR 30S 75 and 1 00 As the rack out handle is turned it rotates slotted racking arms or cams on each side of the breaker frame The cams engage fixed pins mounted on both sides of the substructure moving the breaker in and out The draw out o...

Страница 12: ... the breaker is completely out of its com partment and ready for removal The draw out mechanism is externally operated by a removable racking handle Two mechanism types are employed A breaker mounted screw I traveling nut type services the AKR 30 and 50 frames and the racking handle is inserted through an opening in the breaker escutcheon The equipment mounted type mechanism is employed on the AKR...

Страница 13: ...es the most accurate system protection fo distri bution systems that mclude ac and de variable speed drives rectifiers induction heating and other loads that cause non sinusoidal currents A FuH Function lnp Unit Available with Vanous Gombmat1ons of Protection Features The RMS 9 trip line of pro grammers provides maxi mum breaker to breaker se lectivity and custom load protection Short ti e a d Gro...

Страница 14: ... SIGNAL AID SWITCHES COMPARATOR IOC TRIP SWITCH MicroVersaTnp RMS 9 blocK diagram ILP GF LT TRIP ST TO FLUX SHIFTER Logic Board Ep1c MicroVersaTrip Board when used 13 w w w E l e c t r i c a l P a r t M a n u a l s c o m w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 15: ...ndard 7 Ground Fault Pickup Optional 8 Ground Fault Delay Optional 9 Fault Trip Annunciator Local Optional 1 0 Rating Plug Not shown Adjustable High Range Instantaneous Optional Zone Selective Interlock Optional The quantity of these func tions in any given breaker is determined by complete catalog number 14 MicroVersaTrip RMS 9 Programmer w w w E l e c t r i c a l P a r t M a n u a l s c o m w w ...

Страница 16: ... 20 Triple Selective Trip Pickup Fixed High Multiple of Range Sensor amp Instantaneous Rating S 0 2 25 3 22kA 35 4 45 20 5 6 2 25 3 NA 35 4 45 5 6 2 25 3 NA 35 4 45 5 6 2 22 24 NA 26 28 30 34 37 2 22 NA 24 26 28 3 Tnple select1ve tnp 1s standard when long time short time only is required Time delay shown at lower limit of each band Ground fault pick up Ground Fault Delay Delay with I T without 12 ...

Страница 17: ...s full load cur rent and is measured as symmetrical RMS root mean square short circuit current Instantaneous Function At the bottom of the time current curve is the protect ive device s instantaneous function The instantaneous trip point determines the level at which the breaker will trip without an intentional time delay This immediate interruption occurs only as a result of a severe overcur rent...

Страница 18: ...e less than the long time pickup value and not sensed by the protective device Using modern electronic trip devices protection against ground faults can be built into a distribution protection system with ground fault pickup and delay functions added to the circuit break er s fault interrupting capa bility Before electronic trips came on the scene a com plex collection of external relays and curre...

Страница 19: ...Long Time Pickup Light Standard The long time pickup light provides visual indication that the breaker is experi encing an overload condi tion Indication is provided by a light emitting diode LED which is only activated prior to trip out and during long time time out Saves test and system start up time Short Time Pickup Optional This short time picKup adjustment controls the level of high current ...

Страница 20: ...le Instantaneous Pickup Standard The instantaneous trip point determines the level at which the breaker will trip without intentional time delay 0 025 seconds or less This immediate inter ruption occurs only as a result of a severe overcur rent condition thereby mini mizing damage tothe electri cal system and equipment SHORT TIME DELAY 12T IN 12T OUT MAX MAX DELAY INSTANTANEOUS PICKUP 3X SX 2X 7X ...

Страница 21: ...trip point once the groundfault pickup level has been reached This provides tripping selectivity between main and feeder or other downstream breakers The ground fault unit also includes as standard an inverse 12t ramp to substan tially improve coordination with downstream protective devices such as fuses and thermal magnetic circuit breakers diagrams it can be seen how the memory function works Di...

Страница 22: ...in protective device The disad vantage in this method is that the system must now endure the stress of the high current fault until time out occurs The Zone Selective Inter lock module Figure 21 1 receives a signal from a downstream MicroVersaTrip programmer Logic 0 which causes the module to trans mit a low level interlock sig nal to a MicroVersaTrip pro grammer upstream The interlock signal acti...

Страница 23: ...are described in the table below Type EC 18 Trip Device for 600 2000 amp frame breakers Available in combinations of long time and instantaneous elements or instantaneous alone Trip Device for 600 2000 amp frame breakers Combines long time and short time elements for intentional delay up to the short time rating of the breaker Instantaneous may be added Trip Device for 4000 and 6000 amp frame brea...

Страница 24: ...ripping the breaker This device is set to pick up at approximately 85 of bus voltage and drop out between 30 and 60 The UV device is also available with an optional static time delay unit This offers a field adjustable two to six second delay between undervoltage fault and breaker trip to prevent potential nuisance tripping due to momentary loss of voltage The time delay unit is mounted external t...

Страница 25: ...tings and coil characteristics Auxiliary switches for cross interlocking breakers must be ordered separately Bell Alarm Switch The bell alarm operates one a and one b contact two a s or two b s It is activated when the breaker is tripped by any means automatic other than the manual trip button or the shunt trip device The contacts may be used for remote indication of an automatic trip The lock out...

Страница 26: ...is reset Remote Close Solenoid For manually operated AKR 30H 50 AKRT 50H breakers The solenoid provides a means to electrically close the above breakers from a remote location It may be controlled by a switch or pushbutton for five cycle closing Breaker must be charged locally Available ratings See Table 39 2 page 39 not available on AKR 308 Maintenance Clc sing Handle The maintenance closing hand...

Страница 27: ...sm interlock assem bly for mounting a single or double multiple lock 26 Fourth Wire Disconnect Fourth wire disconnect kits for use when three phase four wire ground fault protection is required provides for connec tion to fourth wire neutral sensor Position Switch The position switch is activated by the AKR breaker when the breaker is in its connected position and then contacts of the switch chang...

Страница 28: ...horized access 200UA T Connector For 1600A and 2000A substructures Provides alternate means for bus connecting to the substructure Shutter Kit Shutters to cover primary disconnects when breaker is moved to the test position Provisions for Padlocking Breaker in Disconnect Position Padlock assembly engages with the breaker mounting bracket in the substructure It prevents the breaker from being moved...

Страница 29: ...gh Range Instantaneous or Triple Selective Trip Triple Selective Trip at 1X short time rating when standard Instantaneous Trip is omitted 28 Table 282 Overcurrent Trip Device Current Ratings 1n Amperes Breaker MicroVersaTrip RMS 9 50 60 Hz ac Frame Sensor Rating Rating Plug Amps s Amps x Tapped Fixed Plug AK 25 70 100 150 225 Rating Equals 200 300 400 600 Sensor Tap 150 60 BO 100 125 150 AKR 30S 4...

Страница 30: ...r the short circuit current rating shall not exceed that of the voltage class prior to derating Rating correction factor for low voltage power circuit breakers are as listed in ANSI C37 13 1981 pliance with the referenced ANSI standards The test circuit X R ratio and power factor required by ANSI C37 13 for unfused breakers is 6 6 with 15 power factor for fused breakers is 4 9 with 20 power factor...

Страница 31: ...nput Current Fixed AKR 30S 1 50 750 1 AKR 30 30H 800 4000 1 200 mA 1 600 8000 1 AKR 50 AKRT 50H 2000 1 0000 1 Fixed AKR 75 3200 8000 1 400 mA AKR 1 00 4000 1 0000 1 CD See Table 28 2 page 28 for applicable sensors 30 w w w E l e c t r i c a l P a r t M a n u a l s c o m w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 32: ... and Below 1 600A 1 600A 2500A 1 200A 2500A 1 000A 2500A BOOA 2500A AKRU 50 1 600A 700A 2500A 600A 2500A 500A 2500A 400A and Below 2500A AKRU 75 3200A 3200A and Below 3000A QQQ and Be ow 40001 General Electric T ype J and L fuses are now obsolete and no longer used in type AKRU low voltage power circuit breakers Gould Shawmut fuses are now used The chart cross references the obsolete GE catalog nu...

Страница 33: ...0ti I TT I D 01 1 2 f II M D L M UK R loll f vE lltl l I 13 15 AKR S 50 El ectric AUXILI t ll Sir o OR A Qo E C KA I G 140 olit o Nc J o r Orol f _ c UCG w w w E l e c t r i c a l P a r t M a n u a l s c o m w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 34: ...I DIC TOR T I 17 38 F l I F i i I 6 I 2 3 J Jo EilT i HOR H R VERT HOR H R VE RT P R STUD HOR OWfR ST JO VE R T IS FuRNISHED UNLESS Oit E R WISE SPeCifoiE D 8 HOLES rt4 00 00 J1LL sa 1 1 13 1 1 5 1 I DR I Ll N FOR LL STUDS 49 w w w E l e c t r i c a l P a r t M a n u a l s c o m w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 35: ... outlines available AKR 308 50 10 HOlELOCATIONS FOR 1 2080I TS 1 I sEE J r 562HOUS NOTE STRAP 1 oo l 1 00 T f 8 370 MOUNTING HOLES NOTE 1 TtESE POSTSM BERE11MDTO AllOW80lJirGlilTTOVEATICAL ST U CTUAEFllfBifiD NOTE 2 0PENVBmL RlONN AREOUIRED TOPANO IIOlltlll FPEIIRlRRBl MUSTCXINWN45JPOPENWA w w w E l e c t r i c a l P a r t M a n u a l s c o m w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 36: ...__ _ T CONNECTOR S fORI o00 2000 A UNITS 2 2S C1 4kC 1 SCilUfl t r _S I T 14 C eK e Z I SC I N Et T Pfi T D A 51 w w w E l e c t r i c a l P a r t M a n u a l s c o m w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 37: ... 1 00 2 3 00 J i J 52 I I I p I T L I t t_ 4f z zj 1 JI w tJ Roi l f t 0 Z at r NOVT 5 i EA I C N ST AI t CO r J8 c OO ee 1 4 10 Ll L 00 R CO MA E N 4fi eqe w w w E l e c t r i c a l P a r t M a n u a l s c o m w w w E l e c t r i c a l P a r t M a n u a l s c o m ...

Страница 38: ...TAK8SS0203 139C4595SH1 2 AKR NS 50 Manual 139C5075 TAK9SS02 139C4595SH1 2 AKR 6S 50H Electric 139C5076 TAK9SS0293 139C4595SH1 2 AKR NS 50H Electric 139C5076 AKRT 6D 50H Manual 139C4978 General Purpose Enclosures AKRT ND 50H Electric 139C4977 AKR 30 AKR 50 245C764 AKRT 6S 50H Manual 139C5075 AKR 75 AKR 100 0134C3052 AKRT NS 50H Electric 139C5076 AKR 6F 75 Manual 139C4572 Fuse Rollout Element AKR NF...

Страница 39: ... 1000 I X E 1000 I X E X Eft X PF 746 kVA X 1000 E kW X 1000 E x PF Hp X 746 E X Eft X PF Elf Percent Efficiency PF Power Factor 54 Electrical 100 120 230 280 240 290 245 485 590 630 r d Two Phase Four Wire l x E x 2 x PF 1000 I X E X 2 1000 I X E X 2 X Eft X PF 746 kVA X 1000 2 X E kW x 1000 2 X E X PF Hp X 746 2 X E X Eft X PF p s Direct CUrrent Three Phase I X E X 1 73 X PF I X E 1000 1000 I X ...

Страница 40: ... part replacement and may further limit the fre general servicing may be quency of operation necessary E Servicing at no greater H When closing and open intervals than shown in ing current up tothe contin second column above uous current rating of the circuit breaker at voltages up F No functional parts to the rated maximum volt should have been replaced age and at 85 of the power during the liste...

Страница 41: ...OF BREAKER CON N E C T I O N Fig 56 2 Transf 500kVA 240 i 4 5 Z 35 000 UJ Q 30 000 20 000 2 Cl u 1 5 000 f a 0 I 1 0 000 1 u 5 000 0 0 I 0 20 50 I 00 200 500 I 000 2000 5000 D I S TANCE IN FEE T FROM TRANSFORMER TO POINT OF BREAKER CONNECTION Fig 56 4 Transf 500kVA 600V 1 5 Z UJ 5 Q_ 1 z w 0 0 u f u a u f a 0 r l u ii f 1 5 000 12 000 9 000 6 000 3 000 f 0 0 I 1 r I H tt 1J f t 1 0 2 0 II II I I 1...

Страница 42: ...g 57 2 T ransf 750kVA 600V 5 75 Z if w a w 0 t a a 3 u u a 0 r if _J t u ii w if I B OOO 16 000 1 4 000 1 2 000 10 000 8 000 6 000 4 000 2 000 0 1 I s zo s s a o o1 1o 1 _ c 0 0 S 1 1 _ r 0 10 20 50 100 200 500 1 000 2000 5000 DI STANCE IN FEET FROM TRANSFORMER TO POINT OF BREAKER CONNECTION Fig 57 4 T ransf 1 000kVA 240V 5 5 Z w a w 0 l z w a a u t u 0 u 0 0 I _J t a t 60 000 50 000 40 000 30 000...

Страница 43: ..._ I f l 1 1 1o 0 t 0 0 1 1 r 1 i 0 2 5 10 20 50 100 200 500 1000 2000 5000 f cr UJ a t z UJ cr cr u u a u cr 0 X f _J t u w f Dl S TANCE IN FEET FROM TRANSFORMER TO POINT OF BREAKER CONNECTION 30 000 25 000 20 000 1 5 000 10 000 5 000 J i 75 Z t 0 t t 1 1 0 10 20 50 100 200 500 1000 2000 5000 D I S TANCE I N F E E T FROM TRANSFORMER TO POINT OF BREAKER CONNECTION Fig 58 5 Transf 2000kVA 480V 5 75 ...

Страница 44: ... Power Circuit Breaker Switchgear Assemblies Conformance Testing of ANSI C37 51 1979 Trip Devices for AC and General Purpose DC Low Voltage Power Circuit Break ers ANSI C37 17 1979 Order from Sales Department American National Standards Institute 1430 Broadway New York NY 10018 of Etec trica and fV1anu facturers Associa ior EiEctrnnics NEMA SG 3 1971 Low Voltage Power Circuit Breakers Order from N...

Страница 45: ... AKT 50 AK 75 100 ECS SST Supplement AKR 3 3A 50 Installation and Operating Installations GEK 7302 GEI 86150 GEI 86151 GEI 86160 GEI 86157 60 AK 25 50 AKT 50 AK 75 1 00 AKR 30 50 AKRT 50 AKR 75 1 00 AKS 50 AKST 50 ECS 1 8 2A Trip Devices Detailed This specification covers General Electric Company low voltage power circuit breakers types AKA AKRT or AKRU The continuous current frame ratings shall b...

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