ML20092F569

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Rev 4 to Procedure 00108-C, Instructions Solid-State Frequency Relays ITE-81 Ib 7.4,1.7-5,Issue a
ML20092F569
Person / Time
Site: Vogtle Southern Nuclear icon.png
Issue date: 02/16/1988
From:
WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP.
To:
Shared Package
ML20092F288 List: ... further results
References
CON-IIT05-002-002-90, CON-IIT5-2-2-90, RTR-NUREG-1410 00108-C, 108-C, NUDOCS 9202190410
Download: ML20092F569 (34)
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\\ l PROCEDE'IbO' k't lSi 8 s0108-C 4 18 of 19 L -* ~ SUBSTEP 4.3.5.3.e, J.,11,$. Sheet 2 of 2 DATA SHEET F f VINDOR DOCUMENT STATUS SHEET j / A T A co.(NORMS 'CRdSS RETp'RINCE TYuT SHEET) s. -t67 4_t, w'~- ih t- >t,,6 t,0G NO. ["b'?d d '-,"'"/t-4s+>> REVISION I 2. EQUIPMENT TAG NUMBER (5) $ERIAL OR MODEL NUMBER (S) l - 19 2C-S ; - A A 4 e22. A II 1G t l IDS S3 6Ab (t'h5 f;3.cac 1IT26 53-DAD e., ~ Mm. tg 9 M_ __ ge 4 9 o MO

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( S 's W85tingh00S8 1.L. 41 100E INST A LL ATION O GPERATION M AINTEN ANCE HNSTRUCTH@MS TYPE CO (HI Lo) OVERCUHRENT RELAY CAUTION: Before putting relays into service, O APPLICATION tenove all bbeking which may have been inserted for the purpose of The CO relay is a single phass non directional secuting the parts during shipment, time overcurrent device. It is used to sense current m3ke sure that all moving parts level above the setting and normally is used to trip operate freely, inspect the contacts to a cintuit breaker to clear faults. A wide range cf ree that they are clean and close characteristics permit applications involving coor. preper!y, end operate the relay to dination with fuses, reclosers, cold lead pickup, check the settings and electrical con-motor starting, or essentially fixed time

nections, applications.

O The fol'.owing describes typical applications of the CO Relay: nsLA'r Twa TYPE CURVE TVPICAL APPLICATIONS CO 2 Short

1) Differential protectmn where saturanon of current

, transformers is not espected, or ehere delayed trippng is permissible.

2) Overcuntnt protectwn. phase or ground. where ui.

ordination with downstream desiees is not insolevd and 2 to 60 cycle tripparig is alive able CO$ 1.ong Motor locked rotor protection where ali..ohis 1.Asi rotor time is approsimatcl) hetaren lo and to wo,nd- ^ CC4 Definite Overcurrent protectwn where coordinanon with down. stream devices is not invulsed and CO.2 is too la t. The operating time of this relay does not vary greatly as urrent level vanet CO 7 Moderstely inverse in Overcurrent protection where coordination with other devices is required, and generanon varies CO 8 inverse

2) Backup proiection for reLyi on other circuits.

C9-9 Very inverse CO il Entremsiy insene

1) Motor protection where allowable locked rotor ti.nc is less than 10 sec.
2) Overcurrent protection where coordinauon with fuses and reclosers is involved, of where cold load pidup or transformer inrush are factors.

All possible contingencies which may arise during installation, operation, or n'aintenance, and all details and variations of this equipment do not purport to be covered by these instructions. Iffurther information is desired by purchaser regarding his particular installation, operation or maintenance of his equipr; tent, the local' Westinghouse Electric Corporation representative should be contacted. SUPERSEDd81.L 41-1000s DATED DECEMBER 1978 and LSpec L914459M, DATED DECEMBER 1978 EFFECTIVE APRll 1980 o'Donotes Changed Since Previous issue. ,n...-

o f 1 C O CONSTRUCTION AND OPERATION leaf. spring mounted contacts are attached, is at. }. tracted to the magnetic core upon energization of De type CO relays consist of an overcurrent the switch. When the switch closes, the moving onit (CO), either an Indicating Contacter Switch contacts bridge two stationary contacts com. (ICS) or an ac Autillary Switch (ACS) and an in. pleting the trip circuit. Also, during the operation. dicating instantaneous trip unt (!!T) when re. two fingers on the armature deneet a spring quired. located on the front of the switch which allows the operation indicator target to drop. Electromagnet A c re screw accessible from the top of the The c!cetromagnets for the types CO.S. CO-6 switch provides the adjustable pickup range. CO.7, CO 8 and CO.9 relays have a main tapped coil located on the center leg of an "E" type tascaUng Instantaneous Trip Unit (IIT) laminated structure that produces a flux which divics and returns through the outer legs. A T,he instantaneous trip unit is a small a.c shding coil causes the flux through the left leg to operated clapper type device. A magnetic ar. lag the incin p3 e Aux. The out of phase fluxes mature, to which leaf spring mounted contacts are 1 thus producea in the air gap cause a contact clos. attached, is attracted to the magnetic core t>pon ing torque, energizatim of the switch. When the switch closes, the moving contacts bridge two stationary contacts The electromagnets for the types CO 2 and completing the trip circuit. Also, during the opera. CO.il relays have a main coil consisting of a tion, two fingers on the armature denect a spring tapped primary winding and a secondary winding, located on the front of the switch which allows the Two identical coils on the outer legs of the lamina. operation indicator target to drop, tion structure are connected to the main coli secon. dary in a manner so that the combination of all the A core screw accessible from the top of.the ) Ouxes produced by the electromagnet result in out-switch and taps on the coil provides the adjustable of phase Auxes in the air gap. The out-of.phue air pickup range, gap fluxes produced cause a contact closing tor. que. CHARACTERISTICS Indicating Contactor Switch Unit (ICS) The trigys are generally available in the ne de indicating contactor switch is a small foll wing current ranges: clapper type device. A magnetic armature, to Range Taps which leaf. spring mounted contacts are attached, is attracted to the magnetic core upon energization .52.5 0.5, 0.6, 0.8, 1.0, 1.5, 2.0, 2.5 of the switch. When the switch closes the moving 1 12 1.0, 1.2, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, 5.0, contacts bridge two stationary contacts, com. 6.0, 7.0, 8.0, 10.0, 12.0 pleting the trip circuit. Also during this operation two fingers on the armature denoct a spring located on the front of the switch, which allows the These relays may have either single or double operation indicator target to drop. circuit closing contacts for tripping either one or two circuit breakers. The relays sie wired per the The front spring, in addition to holding the O internal schematics of rq;. I to 9. target, provides restraint for the armature and thus u controls the pickup value of the switch. The time vs. current chaeacteristics are shown O in Rgs.10 to 16. Dese characterisdes ghe the O ac Auxiliary Switch (ACS) contact. closing time for the various time dial The ac auxiliary switch is a small ac operated settings when the indicated multiples of tap value clapper device. A magnetic armature, to which current are applied to the telty. 1 2 . - - - - =

LL 41 10,g, O Trip Ciremit SETTINGS The main contacts will safely close 30 amperes CO Unit at 250 volts d-c and the scalin contacts of either the indicating contactor switch or the ac auxiliary The overcurrent unit setting can be defined by switch will safely carry this current long enough tap setting and time dial position or by tap setting and a specified time of operation at some current to trip a circuit breaker.. multiple of the tap utting (e.g. 4 tap setting,2 time The indicating instantaneous trip contacts will dial position or 4 tap setting.0.6 seconds at 6 times safely close 30 amperes at 250 volts de*, and will tap value current). The tap setting is the minimum - carry this current long enough to trip a breaker, current required to make the disc move. To provide selective circuit breaker operation' O Indicating Contactor Switch IICS) a minimum coordinating time of 0.3 seconds plus circuit breaker time is recommended between the

a. The indicating contactor switch has two taps relay being set and the relays with which coordina.

that provide a nickup setting of 0.2 or 2 tion is to be effected. araperes. To change tapes requires con. necting the lead located in front of the tap The connector screw on the terminal plate block to the desired setting by means of a above the time dial makes connections to various '"'* C0""*"I "* turns on the operating coil. By placing this screw in

b. Trip Circuit Constants the various terminal plate holes, the relay will res.

p nd to multiples of tap value currents in accor. 0.2 ampere tap..... 6.5 ohms de resistance dance with the van,ous typical time current curves. 2.0 ampere tap... 0.15 ohms de resistance Caution 0 ac Auxiliary Switch (ACS) Since the tap block connector screw on both

a. One of the following ACS un.ts is available the CO unit and llT unit carrie operating current, i

in the Hi Lo Line of relays. be sure that the screws are turned tight. in order to av id pening the current transformer circuits ACS CURRENT ACS/ VOLTAGE MINIMUM } " "E UNIT RANGE DROP P.ECOMMENDED connector screw in the desired tap position before RAN W S P' re oving the other tap screw from the original tap o 0.15 0.2 0.38 4M6 Instantaneous Reclosing The factory adjustment of the CO unit contacts 6 s.14 provides a contact follow. Where circuit breaker reciosing will be initiated immediately after a trip (1) This is the voltage range which will operate the by the CO contact, the time of the opening of the ACS coil only. contacts should be a minimum. This condition is (2) When connected s current-switch in series obtained by loosening the stationary contact with full rated voltage relay or trip coil. mounting screw, removing the contact plate and

b. Energy Requiressents then replacing the plate with the bent end resting against the contact spring.

ACS BUMEN IN THERMAL CAPACITY UNIT VOLT. AMPERES A!4 PERES RATINO(COIL) For double trip relays, the upper stationary AT MINIMUM contact is adjusted such that the contact spring SEiTING 1second I continuous rests solidly against the back stop. The lower 0.15 4.5 4.5 0.16 stationary contact is then adjusted such that both 0.5 4.5 18.0 0.63 stationary contacts make contact simultaneously I LO 4.5 44.0 im with their respective moving contact. 3 1

\\ Indicating Coatsetor Switch (ICS) For deteil information on the FT case refer to 1.L 41-076' ) The only setting required on the ICS unit is the selection of the 0.2 or 2.0 ampere tap setting. This. ADJUSTMENTS & MAINTENANCE selection is made by connecting the lead located in front of the tap block to the desired setting by means of the connecting screw. The proper adjustments to insure correct operation of this relay have been made at the fac. O ludicadag Inscastaneow Trip (!!T) 1 r7. Up n receipt of the relay no customer ad. justments, other than those covered under The !!T setting is the level of ac current at " SETTINGS" should be required. which it will pickup. It should be set to coordinate with other devices so it will never operate for a For relays which include an Indicating instan. fault in a protective tone where tripping should be taneous trip unit (llT), the junction of the induc. produced by other devices. The transient reach tion and indicating instantaneous trip coils is will not exceed 130% for an 80' circuit angle or brought out to switch jaw #3. With this arrange. 108% for a 60' circuit. ment the overcurrent units can be testal separately. The proper tap must be wiected and the core Acceptance Check screw must be adjusted to the value of pick up current desired. ne following check is recommended to insure that the relay is in proper working order-O The nameplate data will furnish the actual current range that may be obtained from the IIT

l. Costact unit. It is recommende;i that the llT be set on the The index mark on the movement frame will higher tap where there is a choice of tap settings.

coincide with the "O" mark on the time dial For example, for a 20 ampere setting use the 20 to when the stationary contact has moved through ..) 40 tap rather than the 6 to 20 tap. approximately one half of its normal deflec. tion. Therefore, with the stationary contact O ac Auxillwy Switd (ACS) resting against the backstop, the index mark is

    • *Y pick p est vanous time dial positions in Itne with the index mark will give operating times as shown on the respective time.cunent curves. For double trip INSTALLATION relays, the follow on the stationary contacts should be approximately 1/32".

The relays should be mounted on switchboard panels or their equivalent in a location free from

2. Mlaimum Trip Current dirt, moisture, excessive vibration and heat, t the time dial to position 6 using the lowest Mount the relay vertically by means of the moun-18p setting, alternately apply tap value current Nus % and tap value cunent mimis 3%. W ting stud for projection mounting or by means of the four mounting holes on the flange for the semi.

n1 ving contacts should leave the backstop at flush mounting. Either the stud or the mounting tap value current plus 3% and should return to screws may be utilized for grounding the relay. the backstop at tap value current minus 3%. The electrical connections may be made directly to

3. Time Cane the terminals by means of screws for steel panet For type CO.il relay only, the 1.30 times tap mounting or to the terminal stud furnished with value operating time from the number 6 time the relay for thick panel mounting. The terminal dial position is 54.9 5% seconds and should be stud may be cuily removed or inserted by locking checked first. It is important that the 1.30 times two nuts on the stud and then turning the proper tap value current be maintained accurately. The nut with a wrench, maintaining of this current accurately is 4

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l.L 41100a necessary because of the steepness of the slope The making of the contacts and targtt indica. O of the tiene<urrent characteristic (Figure 16). A tion should occur at approximately the same in. 1% variation in the 1.30 times tap value current stant. Position the stationary contact for a (including measuring instrument deviation) will minimum of 1/32" wipe. The bridging moving change the nominal operating time by so-contact should touch both stationary contacts proximately 4% simultaneously. Table I shows the time curve calibration points O Apply sufficient current to operate the ACS.. for the various types of relays /With the time The operation indicator target should drop dial set to the indicated position apply the freely. currents specified by Table 1. (e.g. for the CO 8 Routine Maintenance 2 and 20 times tap value current) and measure the operating time of the relay. The.5 to 2.5 All relays should be inspected and checked amp, relay and all CO 2 relays should be set on periodically to assure proper operation. Generally the lowest tap. The i to 12 amp. relay should be a visual inspection should call attention to any set on the 2 amp. tap with the exception of 1 12 noticeable changes. A minimum suggested check amp. CO 2 relay whic'.i should be set on I amp. on the relay system is to close the contacts manual-tap. The operating times should equal those of ly to assure that the breaker trips and the target Table i plus or minus 5% drops. Then release the contacts and observe that the reset is smooth and positive.

4. Indicating Instantaneous Trip Unit (llT)

The core screw which is adjustable from the top if an additional time check is desired, pass of the tnp unit and the tap located on the top of secondary current through the wlay and check the the llT determines the pickup value. The trip time of operation. It is preferable to make this at O unit has a nominal ratio of adjustment of I to ,everal times pick up current at an expected operating point for the particular application. For The making of the contacts and target indica-the.5 to 2.5 ampere range CO 5 and CO 6 induc-tion should occur at approximately the same in - O tion unit use the alternative test circuit in Fig.19 stant. Position the stationary contact for a as these relays are affected by a distorted trinimum of 1/32" wipe. The bridging moving waverctm. With this connection the 25/5 ampere contact should touch both stationary contacts current transformers should be worked well below simultaneously, the knee of the saturation (i.e. use 10L50 or better). Apply sufficient current to operate the llT.The operation indicator target should drop freely. All contacts should be periodically cleaned. A

5. Indicating Contactor Switch (ICS) contact burnisher fl82A836H01 is recommended' Close the main relay contacts and pass suf-for this purpose. The use of abrasive material for ficient de current through the trip circuit to cleaning contacts is not recommended, because of close the contacts of the ICS. This value of the danger of embedding small particles in the face current should be not greater than the par-of the soft silver and thus impairing the contact.

ticular ICS tap setting being used. The opera-tion indicator target should drop ficely. The contact gap should be approximately.047" CAllBRATION between the bridging moving contact and the adjustable stationary contacts. The bridging Use the following procedure for calibrating the moving contact should touch both stationary relay if the relay has been taken apart for repairs contacts simultaneously, or the adjustments disturbed. This procedure O 6. ac Auxillary Switch ( ACS) should not be used until it is apparent that the The core screw which is adjustable from the top relay is not in proper working order. (See "Accep-of the ACS unit determines the pickup value. tance Check"). 5

T r _.,1 CO Unit steepness of the slope of the time current O characteristic (Fig.16). A 1% variation in the ,)

1. Contact 1.30 times tap value current (including measur-De index mark on the movement frame will it.g instrument deviation) will change the coincide with the "O" mark on the time dial nominal operating time by approximately 4V when the stationary contact has moved through if the operating time at 1.3 times tap value is approximately one.'att of its normal deflec,-

not within these limits, a minor ajustment of the tion.* Therefore, with the stationary contact control spring will give the correct operating resting against the backstop, the index mark is time without any undue effect on the minimum offset to the right of the "O" mark by ap-pick up of the relay. This check is to be made proximately.020". The placement of the after the 2 times tap value adjustment har been various time dial positions in line with the index

made, mark will give operating times as shown on the r spective time current curves. For double trip Apply the indicated current per Table i for the relays, the follow on th.' stationary contacts electromagnet plus adjustment (e.g. CO 8,20 should be approximately 1/32".

times tap value) and measure the operating time. Adjust the proper plug until the operating

2. Mielasman Trip Carrent t me corresponds to the value in Table 1.

The adjustmer.t of the spring tension in setting (Withdrawing the left hand plug, front view, in-the minimum trip current value of the relay is crear,es the operating time and withdrawing the most conveniently made with the damping right hand nlug, front view, decreases the time.) magnet removed. In adjasting the plugs, one plug should be .With the time dial set on "O", wind up the screwed in completely and the other plug run in spirst spring by means of the spring adjuster or out until the proper operating time has been until approximately 6 3/4 convolutions show, obta.ned. ' Set the.5 2.5 amp relay and all CO 2 relays on Recheck the permanent magnet adjustment, if ) the minimum tap setting. With the exception of the operating time for this calibration point has CO 2 relay, set the 112 amp. relay on the 2 changed, readjust the permanent magnet and amp. tap setting. Set the 1 12 ump. CO-2 on the then recheck the electromagnet plug adjust-

ment, I amp. tap. Set time dial position 6 on all relays.
4. ladiesting Contactor Switch (ICS)

Adjust the control spring tension so that the Close the main relay contacts and pass suf-O ficient de current through the trip circuit to moving contact will leave the backstop at tap close the contacts of the ICS. This value of value current +l.0% and will return to the backstop at tap value current -1.0%. current should be not greater than the par. ticular ICS tap setting being used. The opera-

3. T1sne Carre Calibraties tion indicator target should drop freely.

Install the permanent magnet. Apply the in. dicated current per Table I for permanent O 5. ac Auxiliary Switch (ACS) magnet adjustment (e.g. CO-8, 2 times tap The core screw must be adjusted to the value of value) and measute the operating time. Adjust pickup current desired. The nameplate data of the ACS will furm,sh the actual current range the permanent magnet keeper until the operating time corresponds to the value of that may be obtained from the ACS umt. Table 1. O 6. Indicating lastantaneous Trip Unic (llT) For type CO il-relay only, the 1.30 times tap The proper tap must be selected and the core value operating time from the number 6 time screw adjusted to the value of pickup current desired. dial position is 54.9 5% seconds. It is impor-tant that the 1.30 times tap value current be The nameplate data and tap plate of the llT maintained accurately. The maintaining of this will furnish the actual current range that may current accurately is necessary because of the be obtained from the IIT unit. 6 b 1

_. ~.. I.L 411000 RENEWAL PARTS Repair work can be donc most satisfactorily at the factory. However, interchangeable parts can be furnished to tne customers who are equip-ped for doing repair work. When ordering parts always give the complete nameplate data. w w i TABLEl TIME CURVE CAllBRATION D ATA - 50 and to Horta PERMANENT MAGNET ADJUSTMENT RELAY TIME CURIENT OPERATING -TYPE DIAL (fl.01.71PLES TIME PosmoN OFTAP kgCONDS VALut) CO2 6 3 0.57 CO 5 6 2 37.80 CO-6 6 2 2 46 CO-7 6 2 4.27 CO-8 6 2 13.35 CO 9 6 2 8.87 CO il 6 2 11.27 ELECTROMAGNET PLUGE CO 2 6 20 0.22 CO 5 6 to 14.30 CO-6 6 20 1.19 CO.7 6 20 1.11 CO-8 6 20 1.11 CO9 6 20 0.65 CO Il 6 20 0.24 a 1 a For 50 Hz. CO.ll relay 20 times operating time limits are 0.24 + 10% -5%. 7 a n ,.g +,. - - -

c 8 e ENERGY REQUIREMtHTS INSTANTANEOUS TRIP UNIT (OT) ButDSN AT PICKUP OMut CONT. I18COWO AVA LE TAP usMusum Ilf elTM Coat SETTING PICKUP $ 7tm85 le TimEl 30 Timal A R IC E FiCKUP PICKUP PICKUP y Unit ADJulThENT 27 21 2 68 .42 .8 .12 .67 .61 2.5 10 2 48 7 14 7 14 1 .076 .048 .09 .086 .015 ,01$ 1 140 14 48 14 48 14 .032 .012 .035 .035 .036 .035 10 186 i 6 20 6+20 6 .108 .061 .127 .125 .125 .100 7 88 6 144 20 40 20-40 20 .016 .008 .018 .018 .018 .018 16 280 40 144 40 144 40 .001 .002 .001 .001 .007 .007 23 460 ENERGY REQUIREMENTS Co 2 SHORT TIMF RELAY votT AwPemas" CONTINUOWE ONS SGCONO POWGA AT AT 3 TIMGS AT 10 TIMGS AT 20 TIM 88 AMPER8 TM MDNS unN4 PACTOR TAP VALUE TAP VALUS TAP VALUE TAP V ALUE RANGE gy,gggg3 ggg3 g CURRENT CURRENT CURASNT CURRENT j 0.S 0.91 28 $8 4.8 39.6 256 190 0.6 0.96 28 51 4.9 39.8 270 $$1 0.8 1.18 28 53 S.0 42.7 304 1024 0.5/2.5 1.0 1.37 28 SO S.3 45.4 348' 1220 1.3 1.95 28 40 6.2 S4.4 435 1740 2.0 2.24 28 36 7.2 66.4 $80 2280 2.5 2.50 28 29 7.9 13.6 100 2850 1.0 1.83 28 SS 4.6 37.3 266 895 1.2 1.90 28 54 4.6 38.0 280 1000 1.3 2.20 28 $3 4.8 40.0 310 1150 2.0 3.30 28 54 4.8 40.5 315 1180 23' 4.00 56 56 4.7 39.2 282 910 2.0 S.00 SS SS 4.9 40,2 295 1050 3.5 S.30 $6 54 4.9 41.0 312 1125 4.0 6.30 56 $3 4.8 41.0 325 1150 t/12 S.0 7.10 230 $3 S.1 42.7 330 1200 6.0 8.80 23 0 - 50 S.2 44.0 360 1350 7.0 9.50-230 48 S.1 48.5 390 1600 8.0 10.30 23 0 46 6.2 $3.0 475 1800 j. 10.0 12.00 23 0 40 6.8 61.0 56S 2$00-( 12.0 13.00 23 0 35 1.8 10.0 680 3300 Thermat capacilles for short times other than one second may be calculated on the basis of time being cd layersely proportional to the square of the current ,4 Degrees current lass volta 8e at tap value current " Voltages taken with Rectos type voltmeter 8

t.L at. tee _s ~ ENERGY REQUIREMENTS CO 5 LONO TIME AND CO 6 DEFINITE MINIMUM TIME RELAYS VOLT amp E R tt AT AT 3ftstl AT 4 flutt AT M Tlutt AMPERE TAP RA NO R ATI e PACTOR T AP V ALut T AP YALut T AP valut T AP Y ALut RANGt (AmPERtl) (AmPERtl) ANGL E $ CURRENT CURRENT CURRENT CURRENT t 0.5 2.1 88 69 3.92 20.6 103 270 0.6 3.1 88 68 3.96 20.7 106 288 0.8 3.7 88 61 3.96 < 21 114 325

0. 5 / 2.5 0

4.1 88 68 4.01 21.4 122 300 1.5 5.1 88 62 4.19 23.2 147 462 2.0 6.8 88 60 4.30 24.9 188 548 2.5 7.1 88 58 4.31 26.2 180 610 1.0 4.5 88 69 3.98 21.0 100 265 1.2 5.5 88 68 .3.93 21.3 103 282 15 6.0 88 67 4.00 21.8 109 308 2.0 7.7 88 66 3.98 21.9 115 340 2.5 9.5 88 65 3.98 22.2 122 363 3.0 10.0 230 65 4.02 22.5 125 366 1/12 3.5 12.0 23 0 65 4.06 23.2 132 403 4.0 13.5 23 0 64 4.12 23.5 137 420 5.0 15.0 230 61 4.18 24.6 150 500 6.0 17.5 460 60 4.35 25.8 1 65 510 7.0 20.5 400 51 4.44 27.0 185 630 8.0 22.5 460 53 4.54 28.6 til 136 10.0 23.5 460 48 4.80 32.5 266 940 12.0 26.5 460 42 5.34 31.9 325 1152 Thermal capacities for short times other than one second may be calculated on the basis of time being inver-sely proportional to the square of the current 4 Degrees current Ings voltage at tkp value current Voltages taken with Rector type voltmeter 9

_.~...- - ENERGY REQUIREMENTS CO 7 MODERATELY INVERSE TIME REL AY YOLT amp ERtl" CONTINUCUS ONESECOMO P0mtt amp ER E TAP 4ATING mAfino PACTom AT AT 1 Tints AT 10 flutt AT 20 flutl (AhPCRED ( Aap gg g g) Anc(g g T AP V ALut T AP Y ALut T AP V ALut T AP Y ALut CURRENT CURRtHT CURRENT CURRthi 0.5 2.1 88 68 3.88 20.7 103 278 0.6 3.1 28 67 3.93 20.9 107 288 0.8 3.7 88 66 3.93 21.1 114 320 0.5 / 2.5 1.0 4.1 88 64 4.00 21.6 122 356 1.5 5.7 88 61 4.08 22.9 148 459 2.0 6.8 88 58 4.24 24.8 174 552 2.5 T7 88 56 4.38 25.9 185 640 1.0 4.5 88 68 3.86 20,6 100 265 1.2 5.5 88 67 3.82 20.4 104 270 1.5 6.0 88 66 3.92 21.2 110 300 2.0 7.7 88 65 3.90 21.8 117 312 2.5 9.5 88 64 3.90 21.8 123 360 3.0 10.0 230 63 3.92 22.5 127 3 90 3.5 12.0 230 63 3.97 22.7 131 413 gjg3 4.0 13.5 23C 63 4.02 22.9 136 420 5.0 1s.0 230 60 4.11 24.1 153 490 6.0 17.5 460 58 4.29 25.5 165 528 7.0 20.5 460 54 4.43 27.3 189 630 8.0 22.5 460 50 4.50 30.5 206 732 10.0 23.5 460 46 4.81 32.6 250 970 12.0 26.5 460 42 5.04 39.9 342 1224 ./ CO-8 INVERSE TIME AND CO-9 VERY INVERSE TIME RELAYS 0.5 2.7 88 72 2.38 21 132 350 0.6 3.1 88 71 2.38 21 134 365 0.8 3.7 88 69 2.40 1 21.1 142 400

0. 5 / 2.5 1.0 4.1 88 67 2.42 21.2 150 440 1.5 5.7 88 62 2.51 22 170

$30 2.0 6.8 88 51 2.65 23.5 200 675 2.5 7.7 88 53 2.74 24.8 228 800 1.0 4.5 88 73 2.33 20 G5 347 1.2 5.5 88 73 2.33 20 135 361 1.5 6.0 88 12 2.35 20.1 142 383 2.0 7.7 88 69 2.35 20.2 145 412 2.5 9.5 88 68 2.36 20.3 146 415 3.0 10.0 230 ,,67 2.37 20.4 149 4 20 l e 12 3.5 12.0 230 66 2.38 20.9 153 450 4.0 13.5 230 65 2.40 21.0 157 460 63 2.40 21.0 164 500 5.0 15.0 230 6.0 11.5 460 60 2.47 21.6 170 525 7.0 20.5 460 57 2.51 21.8 180 600 8.0 22.5 4 60 55 2.52 22.2 192 672 10.0 23.5 460 48 2.77 24.5 230 830 10.0 26.5 460 45 2.94 25.4 258 960 Thermal espacities for short times other than one second may be calculated on the basis of time belns inversely proportional to the square of the other current. C Degrees carrent lats voltate at tap value curren.

    • Voltates taken with Rectos type voltmeter.

10 _._~_..__._..._m_. __.y.._

l.L 410100E ENERGY REQUIREMENTS CO 11 f XTREMFLY INVERSE TIME RFLAY VOLT AMPERES" CONTINUOUS ONE SECOND POWER p TAP RATING MATING FACTOR AT AT 3 TIMES AT 10 TIMES AT 20 TIMES (AMPE RESI (AMPERESI ANGLE O TAP V ALUE TAP VALUE TAP V ALUE TAP VALUE CURRENT CURRENT CURRENT CURRENT 0.5 1.7 56 36 0.72 6.54 71.8 250 0.6 1.9 56 34 0.75 6.80 75.0 267 0.8 2.2 56 30 0.81 7.46 84.0 298 0.5 / 2.5 1.0 2.5 3G 27 0.89 8.30 93.1 330 1.5 3.0 56 22 1.13 10.04 115.5 411 2.0 3.5 56 17 1.30 11.95 136.3 502 2.5 3.8 $6 16 1.48 13.95 160.0 610 1.0 3.5 . 56 30 0.82 7.4 82 300 1.2 4.0 56 29 0.90 8.0 87 324 350 1.5 5.5 56 26 0.97 8.6 93 2.0 8.5 56 25 1.00 8.9 96 380 2.5 10.0 56 24 1.10 9.0 96 377 3.0 12.5 230 33 0.37 8.0 88 340 3.5 14.0 230 31 0.88 8.2 88 3 ") 4.0 15.0 230 29 0.94 8.7 96 306 5.0 17.0 230 25 1.10 10.0 110 435 6.0 18.5 460 22 1.25 11.5 120 478 7.0 20.0 460 20 1,40 12.3 135 560 8.0 21.5 460 19 1.50 14.0 160 648 10,0 25.0 460 14 1.9 18.3 210 900 ) 12.0 28.0 460 10 2.4 23.8 276 1200 Thermal capacities for short times other than one second may be calculated on the basis of time being inversely proportional to the square of the current. @ Degrees current lags voltage at tap value current. ' Voltages taken with Rectox type voltmeter. 11

p- ..s. ) i INTERNAL SCHEWATM: 18101 CAT 154 y%pc CONTACTOR SWITC" CD.. ..C. Q IIIDOCTION bulT C, IC3 / o ) ) 1 l I y RED MAN 9LE d 7 I~~p'V~~y ~~p~~Q~ ~~ l TEST SWITCM CUttERT TEST JACK I. _ _ _ _ 9 _ k. _ _ k _ _ _ _k. _ _h_ _ _ b_ _8 __ b_,N e,,,,,,,,,,,, rt, 7 SMORTING-SWITCM TERMINAL FRONT VitW 1 1 l Sub.3 $7D4524 Mg.1. Mnemel Schemenc of the Doubee Trip Mosey WRheut IIT + 12

i 1.1,. 41.teeg INTERNAL SCHEMATIC I INDICATING CCNTAC10R SWITCH - ICS j: iH CO C0 p ICS w ~, INDICATING INSTANTANEOUS f SY UNIT llTP m RED HANDLE g g- -- - - - -- g- - g- -- - -(,' - ' - -h TEST SWITCH l w _ CURRENT TESTJACM l.. .N. ..h. .k -)N -J CHASSIS OPERATED h % SHORTING SWITCH - h ' h h h" TERMINAL FR08ET VitW 9 Sub.f 3490A03 Fig. 2. Intemal Schematic of the Double Trip Relay With IIT 13

o INTERNAL SCHEMATIC IN01CATING CONTACTOR~ ' \\ [5" IC SulTCH tw CO:: -INDUCTION UNIT C0 y . I C3 RED HAN01.E p gg~~~ - ~p' ~g~ ' ~p ~ ~Q "d ~~ ~ ~ -TEST SWITCH "d - CURRENT TEST JACK k_ k_.k__k__k. h-U U CHAS$15 OPERATED y p SHORTING SWITCH O -Talm S 4 Sub.3 5704523 ) no.1 mmme senemana or me snm to near wthout ur 14

1.L 411000 t INTERNAL SCHEMATIC INDICATING CONTACTOR SWITCH CSj :. INDUCTION UNIT CO ICS CO, J" J, INOlCATING f INSTANTANEOUS d# UNIT IIT RED HANDLE V TEST SwirCa

o o 9 999 9 0 o

l g w ._ CURRENT TEST JACM I. _9 _9 h.__k__k.h._. 3 d 3b CHASSIS OPERATED h h h h h % SHORTING SWITCH h h h h" = TERMINAL FRONT VIEW Sub.1 3498A02 Fig. 4. Intemal Schematic of the Sksg!e Trip Reier With IIT 15; m_ w

4 .._. 4 __ _ _... ] INTERNAL SCHDIATIC iMOICATING CONTACTOR N SWITCH ICp p LNDUCTION UNIT m m > 'W / CO / CQ. ..CO Qs llT llT "3 ~~ ~~ INDICATING , I NSTANTANEOUS ICS -

1. 1.

IITPM UNIT 3J J / RED HANDLE f~d (f~~g~~lf~'ii"{~y'-(i-j pTEST SWITCH j - CURRENT TEST JACX 4-o 4, j M oj' L o - CHASSIS OPERATED SHORTING SWITCH -TERMIN Al. F140NT VIEW Sub.1 35 CHAT 3 Rg. L httemet s%00 et DoubN Trio notey With RT to Seperste Terrnenete. i 1 16 _ - - -.~ -.-. _... _ _ _.._, _ -n - - _- - - - _ _. _ __ __. =.._ = - - - -

i 1 11 41 1006 l INTERNAL. SCHEMATIC r m Il40lC ATiltG C0!ITACTOR - ICS _ SWI TCH j C0 ICS

I!

C0,,,, 111000T10tl UNIT b~ m 11 T p' --II!DI C ATi t40 i14STAllTAllE00S UNIT IIT6 REO IIAllCL E y [ ~(I' {f -Q ~ 'if ~ Q D'"$ ~ 6- ~( ~(/4 TEST SWITCit l --CURREliT TEST J ACK L.9 9 _.D. O._ _.k k k $ d Sd CHASSIS OPERATED S! 0RTit4G SWITCil ( h h h hy TERT 411:AL ' FRONT VIEW asteA01 l 0 rig. e. Internet schematte or the sing!* rrio neiny witn rir contacts weree to Two Seperate Termicels 17

g ~ ) litTERilAL SCHEMATIC 3 luelCATING A C CONTACT 04-SWITCH <~ C4__ C -lNDUCTION UNET = ACS __ CHASSIS OPERATED SHORTING SWITCM RED HANDLE ~6 ~ D ~@ ~ ~Q~ ~ f ~D~ ~7 ~ d ) ~ t -TEST SWITCP. CUARENT TEST JACK l _ D _ _& _ _.$_ _ 4_ _ A _ 4 _ _( H Wj L_ @@@@@@@a Pf=a' t FR0llT VIEW 1 183A600 O Rg. T. Mnemal $@emade of the, SMgk Ttto Peky wrn art ACS Urut 18

u c.ioos INTERNAL SCHEMATIC INDICATING AC CONTACTOR AG SWITCH --ap INDUCTION UNIT j p 00 ACS Cop d h INDICATING INSTANTANEOUS M / UNIT / 1r / IIT ilT f D HANDLE TEST SWITCH ~~N7 ) Q ggQ g d~~ '~~l p l 1 --CURRENT TEST g. - g p_---- JACK .<g () L-- % CHASSIS OPERATED SHORTING % SWITCH ~ TERMINAL l l-m. I: 351$A06 O n. a mener schematic or the singie Trio rotey worn en Acs unit ene air o 19

L .) INTERNAL SCHEMATIC INDICATING AC CONTACTOR ACS SWITCH W \\ INDUCTION UNIT j CO ACS cop / A INDICATING INSTANTANEOUS -O O / UNIT j / y IIT / IIT O llANDLE y TEST SWITCH "o o o o 99 9 o j y [- _ _ o_ _ _.o.__6__4,_6___<x__ oj S*g W RRENT e N CitASS S OPT. RATED HORTING SWITC11 ~ TERMINAL FRONT-VIEW 3324A37 i O % s intemet sanomena or me sange Tno wer wrm an Acs unn und.wm ur Contacte wwrud to Two separate Termmets 20

I.L 41100s CURVE 410244 70

. r ;i i i_._ i t

r TYPICAL TIME CURVES u. _.4.~ TYPE CO.i OVER CURRENT RELAY n 1-t 1 -. \\- \\.._ ~ 1 1 t i n 1 rr i __ i 50-60 HERTZ ,k~ ~i - ~ f 60 }ISEC. ~ ~ ~ ~ ' ,N1 1

q_

i, - s: 1 i t-P- _ k-\\ kN l i 1 T \\' \\ \\ . _f.... ._{l { .\\ i l 1 1 i p. gQ ~ 11 L \\ ~\\ i j \\ 1-- \\ 1 W .1 1 L \\ \\ \\ \\ i Ay !I l 1 1 ,,1 I\\ \\ 1 i1 1 1 \\ \\ \\ : \\ \\ \\, \\ \\\\ -\\--h-\\l ',. X i o i i i 3( ..1 1 t ii au 1 1 1. \\ 1\\ \\! T h I s \\.. v, g = _ - f k... hN~M \\. \\i g TlHE 01AL SETTING \\ \\ .1 y s m _..._t _ \\ \\ 1 v v\\ x x - s i . F. _ \\I 1. i\\ ! 'm.x \\, ggi w v .. 4. _ 1 a 30 _. g. - Ty. _ t T \\ x x s n v;

o N

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1

- c \\ \\ x x. 9 c s---i _. g...

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g...

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. 'l :h :.. : h

^ ..W ?M.Dk@ ~ .t x.. g:.. \\ 54 l 3 \\ .hh "s- ' ' I '- N -N _. _.. N. ' N ,...e3.. g,. 4._w......x 3-y., T-y....I>2,MN.4...'1..%.... . f..A _ _.3 a y 2 ~ ~= ; a 1'_ m h 4 x n m; 't/2 q N,,_.i... w.., u._ x 1.- ,.4 .. -.f - __. _ l }. 0 t 1 2 3 4 5 6 7 8 E 10 12 14 16 19 20 MULTIPLES OF TAP VALUE CURRENT 418244 O n. so. rypicas rime curve or me ryo* co.2 seier o 21

l l CURVE 418245 i l l, TYPICAL TIME CURVES I i ii TYPE CO-5 !.i, i OVER CURRENT RELAY t i i - i: 6 50 60 HERT2 l t i! 4 u 8 11 ! ! t 12o , 'ii,' .r,. i I 1 I i 6 i i . 11 ! 11* te. 111 1 UI 1 11 6 i 3 l 11 6 too ',',i' i.i \\;. 4 4

  • i
  • U a'1; EF1 1

i ? k 1 1 1 T 1 1 L + t 1 1 1 1 \\t \\1\\t\\:\\ 1 UU\\ 1 I iii 80 i i i \\ \\ i i 1 1 \\ !)I 1 6 e i t 1ili U \\ \\! 6 4/9 li U \\ L O b 1 1 -\\ \\ + i 2 , g g,g 3 ,g h. ,l A, %.\\ i \\ L' i m\\ 1 6/) i i i U\\ \\ \\* \\ 1 i T 1 \\ \\ i 60 \\ 1 \\ L L~h a , 1 \\* \\ \\ \\ \\ k \\ \\ .\\ s A A i \\ \\! \\i1 ( -- \\\\J( \\ t5 i x \\\\ '...x TlHE DIAL SETTING ~ Q ( I.,k.

  • L._

. s { [s ~Q l g ~.. 40 \\ s A s x s N st h--- 10m s s s X x \\ v \\ g T' wa'm. g - X X A m _ h'""7 _ E 'Ai 'A NC \\+

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u xI \\ \\ 1 N !N N - ' C A A X iT N N. N 'N-6 6 X '( NI 'm tNmx x ---m-iT N u N '5 Ni A x w x A s! ~% 's, N g %--- D%%=5 x ,3 r -q M

g

,w 2 mx '== ' { ...g_. -{ i ,_.7 1/2 '- -~~ 0 1 2 3 4 5 6 7 8 9 10 HULTIPLES OF TAP VALUE CURRENT 418245 O r,s. n. w nm cum.ar me r e co.s nemy m i 22 1

i.L. 41.toos CURVE-418246 7 ~ l { - TYPICAL TIME CURVES r t TYPE CO 6 1 i t OVER CLERENT RELAY l; ti 50 60 HERTZ I li i i ti r 1 6 t 1',1 1 1 L1 I i ii l1% i i 1\\l' t t = 1 I 1 \\ili 1 i, l1\\t i i ii iii i i ; i-l11\\i 4 iii_v 1 1 1 \\ 5 ,11 1 1 ii si \\ i 1 1 1 1 1 t il T 1 i L-1 i I i 11~\\ V 4 i i i i t i l' U \\ \\ t i U\\1 \\ T I i < 1 1 1 \\ i\\- i l1 %T='t X l I ' + 1 1 1 \\ \\ \\ i g 1 1: 1 1 \\_ X - 1 U 1 '\\ \\ T i a e i 1 Y \\ ' g . : X \\ i i I I I \\i \\ \\ Og < 1 \\ \\ \\ \\ \\ i e i L \\.O T \\ \\ \\ 8 i 11 1: 1 i

1 N

i W !1 Y \\ L: 1 1-X I W i i 1 .1 Y _\\ \\ \\ 1 \\ \\ \\ \\ \\ \\ 3 , 1\\ \\ \\ \\ x x 4 TlHE DIAL SETTING i vi ui X iX x ! x i \\ 1 \\- ' \\ \\i.A N I 9 \\ \\ \\ V' N A A Il \\ v i \\ FA s ! 'A s \\ \\ xi X x. ' 10-N N \\ \\ \\ v x x \\ \\ \\ \\ X \\_ \\ x ! x ' g,,,, _ %. i .w .\\ \\ xI x 2 g e i A A x x \\ \\ \\ iX 7_ _

'%._ _a.

t + Ai m7 t , i \\

  • A X !:

T m '6, ' v_ t x x i = 1: N ,Y m I w_ ' - - i m 6 \\ .A xi 5_ w--. i X i X .N I i x-x - 4, m xi

s i

x '3 ~1 w I t- _ y__3 .W +%. .. p.. .y y J i x i i 4 L--~---- + i y g , m 1 i i ~ i i ' 1/2 i > ._.1-__. i i O 1 2 3 4 5 6 7 8 9 10 12 14-16 18 20-HULTIPLES OF TAP VALUE CURRENT 418246 O rio.12. ryov.si rime cum or une type co-e Reiny 23 i 1

f' 1 L ) CURVE 418247 7 ! 4 .i i e i i \\ \\ i ri \\. \\ \\ TYPICAL TIME CURVES 6 i i r t \\- 1, TYPE CO.7 i i r i \\ 'r 3 i \\\\\\ 3 l OVER CURRENT RELAY i o \\ \\_ \\ \\ 50 60 HERTZ i p i o i \\ \\ \\ i \\ \\ \\ \\ \\ \\ 6 L \\ \\ \\ \\ \\ \\ I \\ l i i 1 \\ 3 11 1 l' i U L \\ l i i l' 1 \\ \\ \\ \\ \\ \\' \\t Y \\ \\ \\ ( i 1 1-1 1 \\ \\ \\ i \\ ;U \\ \\ \\ \\ \\ \\ k, \\, W \\ \\ \\ r r \\"k 1 \\ \\ \\ i i \\ l i 1 \\ \\ i \\ v i \\ \\ N i i i \\ \\ \\ \\ \\ \\ I \\ \\ \\ \\ \\ \\ \\ \\ i L- \\ \\ \\ 1. i \\ \\ i L \\- i \\ \\ \\ \\ t 1 1. 1 \\ \\ \\ \\ \\ 6 i 1 1 k \\ \\ X X t i \\. i \\ \\ \\ \\ 3 Y 't \\ \\ \\ \\ \\ < \\ i\\ g \\ '\\ \\ \\ \\ \\ m N i i i \\ \\ t \\ \\l N 't I i+\\ \\ \\ t \\ \\ \\; ga \\ \\ \\ \\ \\ !\\ w 'k = i \\ \\ \\ \\ ' i, ,' N TIME DIAL SETTING x '\\ \\ \\ \\ \\ Xi 8 A Y <\\- 1 \\ \\ \\ N \\ \\ N W !\\ \\ \\ 't d m tX X X gg ' \\ \\ \\ '\\ \\ \\ N 'N A \\ \\ \\ ' \\ \\ t \\ \\ \\. \\.__, x < x. x s \\ \\t \\ Ni

  • 9

's A x,o' \\ t X x x x \\ \\ 1 x. x x x \\ \\ i 'A W '%m 's N s -N . :h _...>:'.... m. M,.. ~~~"7. g~~r y'x .~ \\ T- - N x_ x

a. _.

., g. y x w g....

g.. (..

q g x_ \\ x .a i x-x x xi \\- N A k I x N N s, \\ x mw_ x A s . x i x \\ __ 4_ 6 i + '%m 'A N N + t X x !A N 'A N N N T N I ~A m N m x i 3-N 's x i N 3 i X i NT i N t N A N-N I i X t N N 2_ 'A 6 i 'A N-I N, 7 T '^ q- .s u 1 i g% W 3 .La l gjg-- .i _= 3.. i ._._...t .L. _ t. t... y...._7..,... 2 3 4 5 6 7 8 9 10 12 14 16 18 20 HULTIPLES OF TAP VALUE CURRENT tre w 0 ar,. f t rypesi nm. cum or m. Type co ney 24

4 l.L 41 10M + 7 -H4 p g r.{.4 H. -{ p.. v._. r-.. - TYPtC A1. TIME CURVES ' -- - + -~ ~ -

i

~gi i i 3, _ i, t-3. i ,i , ; p-. 3 j -. ~. .l,.. TYPE CO 8 - 'c; 3. c i! 'i _tj.(: (_ i 'i ~~ -M: OVER CLRRENT RELAY 4 _ -.. 4 50 60 HERTZ ^ t 1-t-

L i_

)i i i: r o 1 i i-i_.i. 1 : 4 ',i ' i ' -) : M ~ 4 - r -", _ r- - -+-; s r t i 6 y _. ,,,,._,_ a t :i. i i i s _i , : -,i_ i r i. i. 3.ii

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U.

T 4 % !l! ii I ! 1 ' I ' If i 'I \\ 3' 'A T f M 1 .i 1 A Y k i1 a u'1 i 1; V L t i i va A TlHE DIAL SETTING _' i is a g i yu i ! iii, i i o ui v v ii it ti g ** 4 1, t \\: 1 h gg I i i j i 4 i L i 1 il g r 1g 31.. 1 g 1! ) Li_2 a !!\\

  • v v a

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  • "3-"~-

3 i 0 i i 1 2 3 4 5 6 7 8 9 10 12 1h 18 la 20 WULTIPLES OF TAP VALUE CbRRENT 418248 O F# 14. Typical Time Curve of the Type CO-4 Relay 25 l

7 - 7 ,' i 9 iT

  • i 1 *, ", TEM.

i i TYPICAL TIN 1E CURVES r(1 .h h_. ~ ~ ~ ~ TYPE CO.9 4 -- OVER CURRENT RELAY I J L..,, 1 .m i i l 1 -Hb lL t.,: 50-60 HERTZ,{ - t i. m 3, it i

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! i I T !1 1 1i1 l' 1 1 !1 6. 66' <!i-i i i i l e 1 1 1 T i 1i 1 1 !1 11 1 s i 1 .1 ii _ li 11 ili1 iUa L ti i tii F; i t I i i i i 'i ! C ibrHMW i I i 4 i i i i.1.m m1T t .i .i ,4, i i i v l i.i Los m !v i i: o.,> i en. i i 1 E 1 il %il LI Lil I e lii t > a i !ii 6 6 i i 1 1;3 i ii., 1; li i, i i,o t liii li!! 4 1 1 i l l .1 11 L W T - L ii oi' I <+ i I s ii ,mi o ai t n + u B TIME DIAL SETTING 1 a L tu s ti1 om .s: S i it r 1, ii.1 mi im os i.. i. W 'l 1 I I !1 _1 : 1.tTi Lt. L ii'k 1. i ii. Ili iii. li!! + t 1 T I Li1

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e l _L t ' N-J L.a. ' u C' 't i 4 '.g La 1 1

1

. i t. i@fTM T : .t. i ~~' 0 i, i 1 2 3 4 5 6-7 8 9 10 12 14 16 18 20 HULTIPLES OF TAP VALUE CURRENT 418249 O no. ss. ryn,ce nm cum a me rype co.e was 26

) p 1.L 41 1006 ' i ,,i.,..- $.0 a 1 ')' IQ 6d a ,0 A ,o _\\?a .\\\\1\\\\\\ wak &\\\\\\\\\\\\ \\.N._$h ,0 g i\\\\\\\\W\\b y 1 i\\'<\\\\l\\\\t\\ i \\\\\\ \\\\W s \\ \\'t\\\\\\W\\ ) \\ \\\\\\M L ' \\ \\ h \\'Y\\\\ 1 \\ \\t \\ VYW 3 \\ \\ \\ \\'Mt\\\\% \\ \\ \\ T NN\\\\h\\\\ \\ \\ \\ \\\\M 1,.0 \\ \\ Mk .a 1 s m= s \\ ' h TMW W 0.7 't \\ \\ \\ \\WNA A ( \\ \\ \\ (\\ MA \\, \\ \\\\WMN '!7nII \\ \\ s s , uwww 11 \\ \\ \\ V t tYNNNN t \\ \\h. \\'NNQN I' s O.2 N N 's s ( \\ \\ t ( g \\ \\ h \\ N s \\ \\ \\ M, s 1 s s a \\ g es \\ \\ 3 O.0/ 0.08 3 3 0.01 1 S.04 'g 0.83 i-., s 0.s lla l t.- l 0.01 3 2 3 4 S 4 7 1910 N M to seWLflPLl3 W TAP VAL W CW RU T 2888655 O rig. te. Typk:e1 nme curve or tne type co-ts noter 27

l 1 1 STAfloa tus 0.C. TRIP Sus .) 04 A S 39, y C h ~ II' k u u ^% ^ b PH.A. 11 51-B jt1 ICS tl-B al-C 51 E e 8 ./ O[ [ 'X b> Pfl.S 51-C j

51-A ICS g1 ~f

== c h,.h,.h. g y0 41*N +n 30: W t... w u OEVICE NUMBER CHART TC M 31 - QVERCURRENT REL AT. TYPE Co 32 a 5H - GRouno OvtRCURRENT RELAT. TYPE C0 54 - P0ett CIRCUlf SREAXER ICS - IN01CATiu4 ConTACTOR SWITCH N EG. A B C a - 84EMER 411LI AAY CouTACT OR TC - BREMER TRIP COIL P03. Sun 2 182AT56 0 % 11. Ermmet senemenc or nr.e co roor me pneee amt amumt overounent emneoen on e inroe pneu seu. J STAT 10N SUS AC TRIP BUS A C h[ A h 5~A q y y y PH. A M 0 h. h ACS 8 s.g 3.C 51-N ( SAME AS PHASE A ) h

  • 5-C
  • T***

~ , pa.c j i I IH1 Hil [ y'3[ ^ ^ ^ I s r 5'- " 3-O[ NO GRO. k OEVICE NUWSER CHART 52 S - OVERCURRENT RELAY TYPE CO(DwG.M13M801 52 SI-N--GROUPC WERCURRENY RELAY TTPE CO 8 j 52-POWER CIRCU1T BREAKER 52a-BREAMER AUX!LARY CONTACT ACS-IMOICATING CONTACTOR SWITCH AB C TC-BREAKER TRIP CCIL 3527A03 0 rig. sa. smmo sanomesa or nn.a co neur e,en Acs un,t ror enen amt arouna protecaon on a three onese system "B

') a 1.L 41 100E C3 RELAY (FRONT VIEW) T0 flHER (TIME 4 ST0*S wHEN ) STOP (RELAY CONTACT ) (CLOSES CS ' 1C0 ICS CO, t...__. .4 h h \\ TO TINER (TIMER STARTS WHEh) j i J START (SWITCH '5* CLOSES) +RESISTAhCE SwTCH LOAD =$- A AWETER 0 0 0 120 VOLTS AC 3 1 RELAY SHOUI.0 DE TESTED ~4E515TAKCE A *-A24ETER L0A0 IN CASE (_h 25/5 C.T. ALTERNATIVE CONhECTICT3 FOR.5 To 2.5 AMPtn RAut CO-5 AND CD-6 RELAYS Sub.3 3503A43 O ng. so. oingram or rest connections ror the Type co nesar. 1 l 29 .------------_----_------r:-------_------ _1 - ____ __ _ _ ___

RELAY TYPE FIRST 7 DIGIT 3 0F STYLE NO. CO2 265Cl95 CO5 264C897 CO.6 264C898 ) CO7 264C399 CO-8 264C900 CO9 264C901 CO lI 265C047 LAST THREE DIGif5 0F STYLE RANGE RANGE DESCRIPT10N SCHEMATIC NUMBER CO IIT 50 MZ 50 HI 6 A01 A21 .52.5 SINGLE TRIP $704523 (FIG. 3) A02 A22 .52.5 DOUBLE TRIP 5704524 (FIG.1) A03 A23 .523 245 SINGLE TRIP 3498A02 (FIG.4) A04 A24 .0 2.5 2 48 DOUBLE TRIP 3498A03 (FIG. 2) A05 A25 l 12 SINGLETRIP $7D4523 (FIO. 3) A06 A26 l 12 DOUBLETRIP $7D4524 (FIG.1) A07 A27 l 12 6-144 SINGLETRIP 3498A02 ( FIG. 4) A08 A28 l 12 6 144 DOUBLE TRIP 3498A03 j (FIO. 2) 1 A09 A29 .5-2.5 6 144 SINGLE TRIP 3498A02 (FIG. 4) A10 A30 .52.5 6 144 DOUBLE TRIP 3498A03 (FIG. 2) AlI A31 1 12 2 48 SINGLETRIP 3498A02 (FIG.4) A12 A32 1 12 2 48 DOUBLE TRIP 3498A03 (FIO. 21 WITH Irf CONTACTS WIRED 3308A73 A'13 A33 .52.5 2-48 DOUBLE TRIP TO SEPARATE TERMINALS (FIG. 5) Aid A34 1 12 6-144 DOUBLETRIPWITH llT CONTACTS WIRED 3508A73 TO SEPARATE TERMINALS FIG.5) WITH llTC NTACTSWIRED 3508A73 A15 A35 .52.5 6 144 DOUBLE TRIP TO SEPARAYE TERMINALS (FIG.5) WITH llT CONTACTS WIRED 3508A73 A16 A36 I 12 ,48 DOUBLE TRIP TO SEPARATE TERMINALS (FIG.5) WITH HT CONTACS WIRED A17 '5 2.5 248 SINGLETRIP 3516A07 TO TWO SEPARATE TERMINALS WITH HT CONTAm WIRED A18 A38 l 12 6-144 SINGLETRIP 35ioA07 TO TWO SEPA RATE TERMIN A L WITH IIT CONTACTS % IRED Al9 '5 2.5 6 144 SINGLETRIP 3516A07 TO TWO SFDARATE TERMIN ALS I NT^ '[S A20 A40 1 12 248 SINGLE T0.17. 3516A07 ARA ET NRS Sub.34 O ng. n swe oseeneres or co neur mm ics umt. nssate 30 i _iT_'E _I__ ___ _._. _. ~ ~ ~' ~ ~ ~ " ' ~ ~ ~

W' f 1 5. .O {4 o DtA. 4 HOLES FOR ( $y .490*32 WM. SCRCW$ I. 5 9 4 --= 4.043= 2.71- =

(40.49) 15A001 i

(70.641 / + 4 a h*!a, i#88i . _ _.k s.A s > A5,3 a4 a .3. .s t 5 + 2. 3.230 4 -i> (74.6) / (52.S$1 q ~) I - l < >+ R/1 C = - 3.i. _ 2.,3. i.0..i '~ };fgfgig" _ SEWi FLUSH WTG. SANEL LOCATION g3 PROJECTION WTG, PANEL CUTOUT 8 DRtLLING FOR SEWi-FLUSH WTG. O E (A WHEN USED 2.328._ (59.13) REAR) -CASE DIMENSIONS IN INCHE ~ DIMENSIONS IN M*M r YN-l 8 EX ERN TOOTH WASHER g4),63 (6h.$ 38 f d8[) DuL 2 HOLES 3 oNE 03. 5 t k 4 . 250 .250 +.016(.3971 / I ( WASHERS (6.35) 1 (6.351-O L .190 32 SCREW .375 ' l.033--t-LO31-LO31-1.031-(9.53) R. \\ SAACER OR SPACERS FOR L26.19) (26.19) (26.19) 26.19; y* pgggg THIN PANELS _ = - ~ UJ /) 5/1618 SCREW .594 / d /}(254) 'fCR THICK PANELS (15*09) \\ i A IO '~ UST 5/16-18 STUOS) (' lq INTERNAL EXTERNAL I ) 'Q (,,) Q Q 8, { (50.8) [ TOOTHED WASHERS g,g 3 I 10 j 190 32 SCREW (46.05) FOR THICX PANELS j_,,,h2,,h2_V/J fURSSO-32 STuoS \\ 1 t, (I d .I-{--- .516 -TERMINAL .750 (19.05)DIA' 10 HOLES OR -LO31 t'26J9) ; lO314) 26.19)

03.1I NUMBER T' -" - -

LO31 LO31-d ~T"" - -' - -j '~ (2 6.19) Cutout 2 6.19) 34i J TERMINAL AND PANEL ORlLLING OR CUTOUT FOR 06.28) M MOUNTING DETAILS PROJECTION MTG.(FRONT VIEW) 57D7900 O Ag. 22. Outnne and Ortn\\ng Pten for the Type CO Reuy. W E S' 'NGHOUSE ELECTRIC CO R P O R ATIO N RELAY IN5TRUMENT DIVISION CORAL SPRINGS, FL Pnmad a U.S A 1 ]

y e e - e o 1.L 41130s g i Hi LO CO RELAYS WITH ACS UNITS FIRST SEVEN DIGITS OF STYLE NUMBERS ARE 1445C81 LAST ACs THREE UNITS DIGITS OP RELAY RANGE IN RANGE SCHEMATIC STYLE NO. TYPE CO AMPS llT DESCRIPTION 60HZ 50 HZ A01 CO Il 1 12 .5 SINGLE TRIP 183A680 A02 CO il 1 !2 1.0 SINGLE TRIP 183A680 A03 CO-8 1 12 't.0 SINGLE TRIP 183A680 A04 CO5 l 12 1.0 SINGLE TRIP 183A680 A05 CO5 l 12 1.0 6 144 SINGLE TRIP 3515A06 A06 CO-9 l 12 1.0 6-144 SINGLE TRIP 3515A06 A07 CO-i l 1 12 0.5 6-144 SINGLE TRIP 3515A06 A08 CO.9 l 12 1.0 ' SINGLE TRIP 183A680 A09 CO9 l 12 0.5 SINGLE TRIP 183A680 AIO CO9 l 12 0.5 6-144 SINGLE TRIP 3515 A06 All CO-2 1 12 0.5 6 144 SINGLE TRIP 3515A06 Al2 CO-5 .5-2.5 0.5 SINGLE TRIP 183A680 Al3 CO-2 1 12 1.0 6-144 SINGLE TRIP 3515A% A14 CO-9 .5 2.5 1.0 2-48 SINGLE TRIP 3515 A06 Al7 / 15 CO-8 l 12 1.0 6-144 SINGLE TRIP 3515A06 A16 CO-il 1 12 1.0 6 144 SINGLE TRIP 3515A06 Al8 CO-8 l 12 .5 6 144 SINGLE TRIP 3515A06 Al9 Coil .52.5 .5 SINGLE TRIP 183A680 SINGLE TRIP 183A680 A20 CO7 l 12 1 A23 CO-8 .5 2.5 1 SINGLE TRIP 183A680 A24 CO-5 .52.5 1 SINGLE TRIP 183A680 A25 CO-il 1 12 .15 6 144 SINGLE TRIP 3515A06 A26 CO-8 .5 2.5 .15 248 SINGLE TRIP 3515A06 SINGLE TRIP 183A680 A27 CO-5 l 12 .l5 A28 CO-8 I 12 0.5 2 48 SINGLE TRIP 3515A06 SINGLE TRIP 183A680 A29 CO-6 l 12 1 A30 CO-8 l 12 1.0 6 144 SINGLE TRIP 3524A37 SINGLE TRIP 183A680 A31 CO-9 .5-2.5 0.5 SINGLE TRIP 183A680 A32 CO-i l .5 2.5 1.0 A33 CO-Il .5 2.5 1.0 2-48 SINGLE TRIP 3155 A06 Sub.34 775B349 O ig. 21. Style Description of CO Reteye with ACS Units F 31 -}}

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