GEI—33858G

INSTRUCTIONS

SYNCHRONIZING RELAY

TYPE GXS11B

GENERAL ELECTRiC

GEI—33858

TABLE OF CONTENTS

DESCRIPTIONAPPLICATIONOPERATING CHARACTERISTICS

TIME-DELAY UNITINSTANTANEOUS UNITAUXILIARY UNIT

RATINGSBURDENSCONSTRUCTION

CASETIME—DELAY UNIT .

INSTANTANEOUS UNITAUXILIARY UNIT

RECEIVING, HANDLING AND STORAGEACCEPTANCE TESTS

VISUAL INSPECTIONMECHANICAL INSPECTIONELECTRICAL CHECKS

Time Delay UnitInstantaneous UnitAuxiliary UnitOverall Operation

INSTALLATION PROCEDURELOCATIONMOUNTINGCONNECTIONS

PERIODIC CHECKS AND ROUTINE MAICONTACT CLEANING .

SERVICINGADJUSTMENTSTIME-DELAY UNIT .

ContactsINSTANTANEOUS UNIT

ContactsRENEWAL PARTSLIST OF FIGURES

PAGE33

(Cover Photo 8012173)

NTENANCE

34445555666677777888888899999

1011111213

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GE 1—33858

SYNCHRONIZING RELAYTYPE GXS11B

DESCRIPTIOR

The Type GXS relay comprises a group of relays that are employed primarily forautomatic synchronizing of a generator to a system, or synchronizing two systems.

This relay consists of an induction—disk unit, an induction—cup unit, and an

auxiliary unit. These units are nunted in a two—unit single—end drawout case.The induction—disk unit provides the time-delay characteristics, the induction—cup

unit provides the closing angle, and the auxiliary unit sets up the indicating

circuit to the breaker.

APPLICAfl

This relay is intended to give the closing indication to a circuit breaker for

connecting two AC sources together when the cut—off-frequency difference and

closing angle are not greater than the values at which the relay is set to closethe breaker.

OPERATING CHARACTERISTICS

The Type—GXS relay’s operation depends upon the fixed closing angles at which

the relay is set and the cut—off-frequency difference of the voltages applied to

the relay.

These instructions do not purport to cover all details or variations in equipment nor provide for every

possible contingency to be met in connection with installation, operation or maintenance. Should further

information be desired or should particular problems arise which are not covered sufficiently for the purchaser’s

purposes, the matter should be referred to the General Electric Company.To the extent required the products described herein meet applicable ANSi, IEEE and NEMA

standards; but no such assurance is given with respect to local codes and ordinances because they vary greatly.

3

GEI—33858

TIME—DELAY UNIT

The operating coils of the time-delay unit are mounted on the left—hand sideand produce a torque tending to close the contacts. This torque is proportional tothe vector sum of the voltages whose phase positions are being compared. Thetorque produced by the restraint coils is proportional to the vector difference ofthe voltages. The operating torque is maximum when the systems are in synchronismand is zero when they are in phase opposition; the reverse is true of therestraining torque.

The operating time of this unit is approximately proportional to the disktravel, which is readily adjusted by means of a time dial.

The cut-off-frequency difference/time-dial setting characteristics are shownin Figure 2.

INSTANTANEOUS UNIT

ihe torque produced by the instantaneous unit that operates the contacts ofunit is proportional to the out-of-phase component of one voltage (generator

with —espect to the other vc.tage (bus). This is the same component that producespower surges during synchronizing. The torque of this unit reverses as one voltage.qenerator) passes from lagging to leading or vice versa. This torque isuransmitted to the contact brush by means of lever arms with the proper ratios, sothat equal angles leading a— lagging produce the same force on the contact brush.Only one adjustment is necessary for setting the closing angles simultaneously irthe fast and slow directions. This closing angle is adjustable from 10° to 30°.

The closing angle/voltage :haracteristics are shown in Figure 6.

The cut—off-frequency difference/voltage characteristic for 10°, 20°, and 30°settings are shown in Figures 3, 4, and 5, respectively.

AUXILIARY UNIT

The operation of the auxiiary unit depends upon the closing of the contact onthe time-delay unit and the “a’ contact of the instantaneous unit. These twocoruact must be closed in order to energize the auxiliary unit. When this unit sergized it edS itself in and sets up the circuit for giving the indication tcthe breaker.

An example of the operation sequence of this relay follows, using Figure 7 forreference.

The relay is set with a closing angle of 20° and the time dial is set to givethe indication with a maximum cut-off—frequency difference of 0.33 cycles persecond. With a cut-off-frequency difference above 0.33 cycles per second thetiming contacts, “T”, start to close at approximately 84°, but before they have hadtime to close, the angle has decreased to a value where the °Ia contact of theinstantaneous unit opens; then the auxiliary unit will not pick up and close theseal—in contact ‘IX” when “T1’ closes, and no synchronizing will occur.

However, with a cut-off-frequency difference of 0.33 cycles per second orless, “T” contacts start to close at approximately 84°, and finish closing beforethe angle decreases below the value where “Ia” opens, so that “T” and “Ia” contactsare closed, picking up the auxiliary unit and closing the “X” contacts. The set—up

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GEI—33858

circuit is completed. At 20’ the ‘lb’ contacts of the instantaneous unit close,thus giving the indication to the breaker through contacts “T”, “X”, and “Ib”.

RATINGS

The main coils of the time—delay unit and instantaneous unit are rated at 115volts. The contact-circuit rating is available for all standard DC and AC controlvoltages.

The current-closing rating of the contacts is 20 amperes for voltages notexceeding 250 volts. The current—carrying rating is 20 amperes for one second.The interrupting ratings are listed in Table I.

TABLE I

VOLTS AMPERES 1AC DC I

125 1.0 O.3t250 0.50 0.15t

t Non—inductive load

BURDENS

The burdens for the 115 volt Type—GXS11B relay are the approximate valueslisted in Table II.

TABLE LI

CIRCUIT VOLT POWERVOLTS CYCLES TERMINALS WATTS AMPS FACTOR

115 60 5 - 6 7.9 17.4 0.4567 - 8 16.5 28.7 0.574

115 50 5 - 6 8.38 21.50 0.3907 - 8 15.30 30.6 0.50

CONSTRUCTION

CASE

The case is suitable for either surface or semiflush panel mounting, and anassortment of hardware is provided for either mounting. The cover attaches to thecase and also carries the reset mechanism when one is required. Each cover screwhas provision for a sealing wire.

The case has studs or screw connections at the bottom for the externalconnections. The electrical connections between the relay units and the case studsare made through spring—backed contact fingers mounted in stationary molded innerand outer blocks, between which nests a removable connecting plug that completesthe circuits. The outer blocks, attached to the case, have the studs for theexternal connections, and the inner blocks have the terminals for the interna1connections.

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GE 1—33858

The relay mechanism is mounted in a steel framework called the cradle and is a

complete unit, with all leads being terminated at the inner block. This cradle is

held firmly in the case with a latch at the top and the bottom and by a guide pin

at the back of the case. The cases and cradle are so constructed that the relay

cannot be inserted in the case upside down. The connecting plug, besides making

the electrical connections between the respective blocks of the cradle and case,

also locks the latch in place. The cover, which is fastened to the case by

thumbscrews, holds the connecting plug in place.

To draw out the relay unit the cover is first removed, and the plug drawn out.

The latches are then released, and the relay unit can be easily drawn out. To

replace the relay unit, the reverse order is followed.

A separate testing plug can be inserted in place of the connecting plug to

test the relay in place on the panel, either from its own source of current and

voltage, or from other sources. Or the relay unit can be drawn out and replaced byanother that has been tested in the laboratory.

TIME—DELAY UNIT

The time-delay unit consists of two shaded—pole U-magnet driving elements

acting on opposite sides of a single rotating disk. One of these, the operating

element, drives the disk in the contact—closing direction, and the other, the

restraining element, drives the disk in the opposite direction. The disk shaft is

restrained by a spiral spring, the purpose being to hold the contact open when the

relay is de—energized. The motion of the disk is retarded by permanent magnets

(drag magnets) acting on the disk to give a time delay.

INSTANTANEOUS UNIT

The induction—cup unit, called the instantaneous unit, is based on the stator,

which has eight laminated magnetic poles projecting inward and arranged

symmetrically around a central magnetic core. The poles are fitted with potential

coils. In the annular air gap between the poles and central core is the

cylindrical part of the cup-like aluminum rotor, which turns freely in the air gap.

The central core is fixed to the stator frame; the aluminum cup alone turns. This

construction provides high torque and a fast, sensitive operating unit.

The operating arm, mounted on the shaft of the aluminum rotor cup, operatesthe contact brush (movable contact) between the two stationary barrel-type

contacts. The contact assembly consists of single—pole, double-throw action——one

contact is normally open and one contact is held closed by a coil spring when therelay is de—eriergized or within the closing—angle range at which the relay is setto close the breaker.

AUXILIARY UNIT

The auxiliary unit, mounted in back of the instantaneous unit, is a telephonetype of relay and is used for setting up the circuit for giving the indication tothe breaker.

RECEIVING, HANDLING AND STORAGE

These relays, when not included as part of a control panel, will be shipped incartons designed to protect them against damage. Immediately upon receipt of a

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GE 1—33858

relay, examine it for any damage sustained in transit. If injury or damageresulting from rough handling is evident, file a damage claim at once with thetransportation company and promptly notify the nearest General Electric SalesOffice.

Reasonable care should be exercised in unpacking the relay in order that noneof the parts are injured nor the adjustments disturbed.

ACCEPTANCE TESTS

Immediately upon receipt of the relay an Inspection and Acceptance Test shouldbe performed to make sure that no damage has been sustained in shipment and thatthe relay calibrations have not been disturbed. If the examination or testindicates that readjustment is necessary, refer to the section on SERVICING.

If the relays are not to be installed imediately, they should be stored intheir original cartons in a place that is free from moisture, dust and metallicchips. oreign matter collected on the outside of the case may find its way insidewhen the cover is removed and cause trouble in the operation of the relay.

VISUAL_INSPECTION

Check the nameplate stamping to make sure that the model number and rating ofthe -elay agree with the requisition.

Remove the relay from its case and check that there are no broken or crackedmolded parts or other signs of physical damage, and that all screws are tight.

MECHANICAL INSPECTION

1. The disc on the time—delay unit should be approximately centered in boththe U—magnet gap and the drag magnet gap.

2. There should be about 0.015 inch end play in both the disc and cup unitshafts.

3. The control springs should not be deformed.

4. The armature of the auxiliary telephone relay should move freely.

5. Check the location of the contact brushes on the cradle and case blocksagainst the internal—connection diagram for the relay.

ELECTRICAL CHECKS

Before any electrical checks are made, the relay should be placed in its caseand in a level position.

When checking the unit electrically, connect as per testing connections inFigure 12.

Time Delay Unit

1. With rated voltage applied to both potential circuits, the disc unit shouldclose its contacts at a phase—angle—meter reading of 84° ± 4° in the firstquadrant and 2760 ±

40 in the fourth quadrant.

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GE 1—33858

2. With the phase-angle meter set at 0° and the time dial set at the 10 position,application of rated voltage should cause contact closure in 1.4 ± 0.1seconds.

Instantaneous Unit

1. * With rated voltage applied to the relay, the left-hand contactapproximately 30 to 1 in advance of the closingspecified, the closing angle is 200 ±2°. Thus,phase-angle meter, the Ia contact should open at 29°should close at 22° to 18 in the first quadrant.

* Starting in the fourth quadrant at 300°, the Ia contact should open at 331° to3370 degrees and the lb contact should close at 338° to 342°.

2. Take the above measurements after the relay (in its case and cover) has beenenergized with rated voltage for 30 minutes.

Auxiliary Unit

The auxiliary telephone relay should operate at 80% or less of rated controlvoltage.

Overall Operation

When the phase is set at an angle greater than the closing angle of theinstantaneous unit, and rated voltage applied to all units, the auxiliary unit (X)should pick up and prevent a complete circuit at studs 1—4 when the phase angle isbrought down to 0°.

When the phase angle is set within the instantaneous—unit closing angle, acomplete circuit should occur at studs 1-4 after the time unit closes its contacts.

LOCATION

INSTALLATION PROCEDURE

The location should be clean and dry, free from dust and excessive vibration,and will lighted to facilitate inspection and testing.

MOUNTING

The relay should be mounted on a vertical surface.drilling dimensions are shown n Figure 13.

CONNECTIONS

The internal-connection diagram is shown in Figureconnection diagram is shown rn Figure 11.

The outline and panel

7. A typical external-

One of the mounting studs or screws may be permanently grounded, if desired,by a conductor not less than No. 12 B & S gage copper wire or its equivalent.

At the time of installation a general inspection should be made to see thatthe relay is in good mechanicdl condition and that factory adjustments have not* Lndicates revision

should open atangle. If not otherwisestarting from 60° on theto 23° and the Tb contact

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GEI—33858

been disturbed. Any changes in chardcteristics that have to be made for the

particular installation should be made at this time. The time dial will be set at

zero (0) before the relay leaves the factory. It is necessary to change this

setting in order to open the time-delay-unit contacts. For the time—dial

adjustment, the time curve of Figure 2 may be used. If a more precise time than

that available through interpolation of the time curve is required, use test

connections as shown in Figure 12.

If the nominal instantaneous setting of 20° is not that which is required, the

same test connections should be used. A detailed procedure for this is given in

the SERVICiNG section.

PERIODIC CHECKS AND ROUTINE MAINTENANCE

In view of the vital role of protective relays in the operation of a power

system, it is important that a periodic test program be followed. It is recognized

that the interval between periodic checks will vary depending upon environment,

type of relay and user’s experience with periodic testing. Until the user has

accumulated enough experience to select a test interval best suited to his

individual requirements, it is suggested that the settings made at the time of

installation be checked at least once every year.

CONTACT CLEANING

In cleaning fine silver contacts, a flexible burnishing tool should be used.

This consists of a flexible strip of metal with an etch—roughened surface,

resembling in effect a superfine file. The polishing action is so delicate that no

scratched are left, yet corroded material will be removed rapidly and thoroughly.

The burnishing tool described is included in the standard relay tool kit

obtainable from the factory.

SERVICING

These relays are adjusted at the factory arid it is advisable not to disturb

the adjustments. If for any reason thay have been disturbed or need to be changed,

the following points should be observed in restoring them, using the test

connections shown in Figure 12.

ADJUSTMENTS

Unless otherwise requested, the relay is adjusted at the factory to have a

closing angle of 20°. If other settings are desired, the following adjustments may

be made, using the test connections shown in Figure 12.

TIME-DELAY UNIT

To make accurate adjustments of this unit, a phase shifter, a phase—angle

meter, timing device, and voltmeters are required, along with means for voltage

control.

The lower jewel bearing may be tested for cracks by exploring its surfaces

with the point of a fine needle. The time—delay—unit jewel bearing should be

turned up until the disk is centered in the air gaps, after which it should be

locked in position by the set screw provided for this purpose.

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GEI-33858

The upper bearing pin should be adjusted so that the disk shaft has about 1/64of an inch end play.

Only two adjustments can be made to change the operation of this unit. (1)Adjusting the adjustable resistor (at the top of the frame) that equalizes theclosing angle so that the closing angle will be the same whether one voltage isleading or lagging the other voltage. (2) Changing the time—dial setting thatchanges the time of closing the contacts, and controls the maximum cut-off-frequency difference. See Figure 2.

To check the operation of the time-delay unit, connect the relay per Figure12. With rated voltage and frequency applied, determine the angular differencebetween the voltages applied to terminals 5-6 and 7-8 at the point where theinduction disc contacts just close. This should occur when the voltage to stud 5—6leads the voltage applied to studs 7-8 by 84° ± 4°. This should also occur whenthe voltage to studs 5-6 lags the voltage applied to studs 7—8 by 84° ± 4°. Thesetwo angles should be the same. If not, adjust the top adjustable resistor so thatthe leading angle is the same as the lagging angle.

To check the operating time, place the time dial at the #10 time—dial setting.With rated voltage applied in phase to both potential circuits, the operating timeshould be 1.4 ± 0.1 seconds. To adjust the operating time, move the drag magnet.Moving the drag magnet closer to the shaft reduces the operating time, while movingthe drag magnet towards the edge of the disc increases the operating time.

Contacts

The contacts should have about 1/32 cf an inch wipe. That is, the stationarycontact tip should be deflected about 1/32 of an inch when the disk completes itstravel. The wipe is adjusted by turning the screws in the contact brush, therebyadjusting the position of the brush relative to the brush stop.

When the time dial is moved to the position where it holds the contacts justclosed, it should indicate zero (0) on the time—dial scale. If it does not, andthe brush is correctly adjusted, shift the dial by changing the position of the armattached to the shaft just below the time dial. Loosen the screw clamping the armto the shaft and turn the arm relative to the shaft until the contacts just makefor the zero (0) time-dial setting.

The cut-off—frequency difference/time—dial curve is taken with a definitesetting of the drag magnet, control spring, and clearance gap of the Ia contact ofthe instantaneous unit. If any one of these are changed, the curve should be takenagain. In taking this curve, a motor-driven phase—shifter with speed-cut—off—frequency-difference curve is required.

In order to determine the proper time-dial setting to use, it is necessary toknow the closing time of the breaker and the closing-angle setting of the relay.With these two known facts, the value of ‘5” is calculated from the followingequation:

360t

Where S = Maximum frequency difference (cutoff) cycles per seconds.0 = Closing angle in degrees.t Breaker closing time in seconds.

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GEI—33158

When “S’ is determined, the time-dial setting can be read from Figure 2. Thistime-dial setting will give breaker closure when the two systems are in phase ifthe frequency difference is constant and equal to the cut—off-frequency difference.This frequency difference may be too small to allow synchronizing without anexcessively long wait, especially when synchronizing two systems for which there isno means of adjusting the frequency of one in order to make the frequencydifference smaller. In this case, the value of “S” should be increased untilsynchronizing is accomplished within a reasonable time. In no case should “S” bemade greater than twice the value calculated by the above equation. If “5” is madetwice the value calculated from the above equation, the breaker will close at anangle after the in-phase condition equal to the closing angle.

INSTANTANEOUS UNIT

Should it be necessary to remove the cup—type rotor from the directional unit,the following points should be followed:

1. Disconnect the leads from the contact support.

2. Remove the unit intact with its mounting plate.

3. Avoiding any disturbance to the top bearing plate, remove the entire topstructure from the stator assembly by removal of the four corner screws.This will give access to the cup and stator assembly.

4. In this way all parts will again be aligned by the pins when replaced.

The lower jewel bearing may be tested for cracks by exploring its surfaceswith the point of a fine needle. The lower jewel bearing should be screwed all theway in until its head engages the end of the threaded core support. The upperbearing should be adjusted to allow about 1/64 of an inch of end play to the shaft.

To check the clearance between the iron core and the inside of the rotor cup,press down on the hub near the shaft and thus depress the spring-mounted jeweluntil the cup strikes the iron. The shaft should move about 1/16 of an inch.

The instantaneous unit controls the closing angle at which the relay gives theindication to the breaker. Using the polarity test connections shown at the bottomof Figure 12, adjust the adjustable resistor at the bottom of the frame to havezero (0) torque on the contact brush. This will occur when neither of the leverpins touch the contact brush.

Using the test connections in Figure 12, the closing angle may be adjusted bymeans of adjusting the coil spring connected to the contact brush and the springsupport. To change the closing-angle setting, set the phase—angle meter on thedesired closing angle, with rated voltage applied and with the seal—in contactsclosed. If the light is on, loosen the right-hand nut on the spring support andtighten the left—hand nut until the light just lights; then tighten the right-handnut. If the light is not on, loosen the left-hand nut, then tighten the right—handnut until the light just lights, and then tighten the left—hand nut. Both nutsshould be tight after setting the closing angle.

Contacts

The contacts of the directional unit, Figure 8 are specially constructed tosuppress bouncing. The stationary contact is mounted on a flat spiral springbacked up by a thin diaphragm. These are both mounted in a slightly inclined tube.

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GE 1-33858

A stainless steel ball is placed in the tube before the diaphragm is assembled.When the moving contact hits the stationary contact, the energy of the former isimparted to the latter and thence to the ball, which is free to roll up theinclined tube. Thus, the moving contact comes to rest with substantially norebound or vibration. To change the stationary contact mounting spring, remove thecontact barrel and sleeve as a complete unit, after loosening the screw at thefront of the contact block. Unscrew the cap. The contact and its flat spiralmounting spring may then be removed.

The contact gap may be adjusted or reset by loosening slightly the screws atthe front of the contact block. These screws should be loosened enough to allowthe contact barrels to rotate in their sleeves. The right—hand contact should bescrewed in until it just touches the movable contact, and then screwed in anadditional 3/8 of a turn to ensure positive contact. Tighten the right contactblock, and then screw in the left contact until it just touches the movablecontact. Back the left contact barrel out one full turn to obtain approximately0.032 of an inch contact gap, and tighten the screw that secures the left contactbarrel.

RENEWAL PARTS

It is recommended that sufficient quantities of renewal parts be carried instock to enable the prompt replacement of any that are worn, broken, or damaged.

When ordering renewal parts, address the nearest Sales Office of the GeneralElectric Company, specify the quantity required and the name of the part wanted,and give complete nameplate data, including serial number. If possible, give theGeneral Electric Company requisition number on which the relay was furnished.

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GE 1—33858

LIST OF FIGURES

Figure 1 (8O1172) The Type GXSIIB Relay, Disassembled

Figure 2 (0178A9108) Typical Cut-Off-Frequency Difference/Time—Dial—SettingCurves of Time Delay of the GXS11B Relay

Figure 3 (K-6400395-2) Typical Cut—Off-Frequency Difference/Voltage—Characteristic Curves for 100 Setting of the Type—GXS11B Relay

Figure 4 (K.-6400396-2) Typical Cut—Off-Frequency Difference/Voltage—Charac-teristic Curves for 20° Setting of the Type—GXS11B Relay

Figure 5 (K-6400391) Typical Cut-Off-Frequency Difference/Voltage Characteristic Curves for 300 Setting of the Type—GXS11B Relay

Figure 6 (K-6400394—3) Typical Closing-Angle/Voltage Curves of the Type—GXS11BRelay

Figure 7 (K-6556535-1) Internal-Connection Diagram for the Type GXS11B Relay

Figure 8 (K-6011O69--4) Contact Assembly for the Directional Unit of Type—GXS11BRe lay

Figure 9 (8012174) The Type—&XS11B Relay in Cradle (Front View)

Figure 10 (8012175) The Type GXS11B Relay in Cradle (Rear View)

Figure 11 (K-6400398—2) External-ConnecUon Diagram, for the Type—GXS11B Relay

Figure 12 (K-6400399-1) Test Connections for the Type—GXS1IB Relay

*Figure 13 (K-6209273-5) Outline and Panel-Drilling Dimensions for the Type—GXS1IB Relay

*Jndjcates revision

13

GE 1—33858

COVER

LATC HCRADLE

____________

INNER‘ BLOCK

iiiCONNECTiNG PLUG

Figure 1 (8012172) The Type-GXS11B Relay, Disassembled

OUTERB LOG K

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GE 1—33858

0—

—CURVES RATED 8)15 VOLTAGE (I ID) SEN.VOLTAGE VARIED FROM 80 TO I 0% OFRATED VOLTAGE (115)

———CURVES BUS AND SEN. VOLTAGES VARIEDFROM 80 TO I 10% OF RATED VOlTAGE (115)

Figure 4 (K-6400396) [21 TypicalCut-Off-FrequencY Difference/Voltage-Characteristic Curves for 200 Settingof the Type-GXSI1B Relay

Figure 3 (K—6400395 [2]) TypicalCut-Off—FrequencY Difference/Voltage—Characteristic Curves for 100 Setting ofthe Type—GXSIIB Relay

Figure 5 (K-6400397 121) TypicalCut-Off-Frequency Difference/Voltage-Characteristic Curves for 30° Setting ofthe Type-GXS11B Relay

20

lflI*C

Figure 2FrequencyCurves of

(0178A9108) Typical Cut-OffDjffence/TimeDial—SettingTime Delay of the GXS11B Relay

.80 I I ( I I I I I I-—CURVES RAtED GUS VOLTAGE (18) GEN.—4——-——

VOLTAGE VARIED FROM 80 TO 110% OFRATED VOLTAGE (115)CURVES BUS AND SEN. VOLTAGES VARIEDFROM 80 TO 110% OF RATED VOLTAGE (115)

PERCENT OF RATED VOLTAGE (115)PERCENTOFRATEDVOLTAGE(IIS>

15

*

r

GEI-33858

SCRT FNGE

Figure 6 (K-6400394-3) TypicalClosing—Angle/Voltage Curves of theType-GXS1IB Relay

Figure 7Connec-ti onRe 1 ay

(K—6556535—1) Internal—Diagram for the Type—GXS11B

- INCL$NE. TUBEB-ANESB BEE.. BALL

G- DNTACTF-F_AT RA SPRiNG

Figure 8 (K-5077069) 41 Contact Assembly for the Directional Unit of Type—GXS11BRelay

‘4,.

‘1’9

A CD E

E-AP

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GE I —33858

Figure 9 (8012174) The Type—GXS11BRelay in Cradle (Front View)

Figure 10 (8012175) The Type GXS11BRelay in Cradle (Rear View)

I

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GE 1—33858

2

3

1—)

s.

-- -

4, IT L-Gxs)42_J —

TO 52CLO5II4G CIRCUIT

DEVICE PUNCTIDI

rnrnER

1 — COWTROLSSItQt

52 — CIRCUIT 6REAXER

T — TIsE ELEMCT, GX5

X — IVSTARTAMEDUS (LEwEIT, GXS

X — AUXILIARY ELEWENT, GXS

s•rt. SW - S’?IP( Z N SW I 104

Figure 11 (K-6400398-2) External-Connection Diagram,for the Type-GXS11B Relay

S’rwc.

6

Cal s

52

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GEI-.33858

SOURCE o

RATED OLTAtE

A.D ECE’CY ‘ill

CCN.ECTIORS FOR 5lNcLE PRASE

PCIIARITT CMEC CONTACTS SMOULD CLOSE ON TINE

ELAY UNIT.

2EiO TORcUECN INSTANTANEOUS UNIT.

Figure 12 (K.—6400399-1) Test Connections for the Type-GXS1IB Relay

I

2

3

GX

IAC Al LII

I?. TERN Al.

CDNN 5.

9900

9!?! 0

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GEI-33858

LOCATIONSURFACE

MTG

0-32 X 3/8MTG. SCREWS

___

3.0

____________

76MMVIEW SHOWING ASSEMBLY OF HARDWAREFOR SURFACE MTG, ON STEEL PANELS

Figure 13 (K-6209273-5) Outline and Panel-Driling Dimensionsfor the Type—GXS11B Relay

BC-6/96 (100) GENERAL ELECTRIC METER AND CONTROL BUSINESS DEPT.. MALVERN, PA 19355

PAN[LSEMI-FLUSH —(4) 5/16-18 STUDS

FOR SURFACE MIG.

14.375365MM

1 0—32STUDS

1/4 DRILL4 HOLES

1. 12529MM

6187157MM

STUDNUMBERING

9753100000

0000010 8 6 4‘—‘-II

- 3. 0

75

___

76MM I3,500

BACK VIEWCUTOUT MAY REPLACE

DRILL[D HOLES

--;---CUll UTI 0. 375

263MM

5/8 DRILL88MM4 HOLES 1.75

4MM4156

I5MH4

105MM

c- 211MM I

8.34_4 —

6175MM

218

5.6875MM —

1 44MMPANEL

PANEL DRILLINGOR SEMI-FLUSH MOUNTING

FRONT VIEW

.50012MM

(TYPICAL)

19MM

TYPICAL DIM.INCHES

MM

CASE

PANEL DRILLINGFOR SURFACE MOUNTING

FRONT VIEW

20