GENERAL ELECTRIC INSTRUCTIONS GEK- 2M42. Insert Rooklet GEH 1793 INSTANTANEOUS AUXILIARY RELAY TYPE HGA MODEL 12HGAI1E(-)A I NTRODUCT ION

Transcription

1 PHILAO[LPHA. PA GENERAL ELECTRIC POWER SYSTEMS MANAGEMENT DEPARTMENT latter should be referred to the General Electric Co.pany. probli erlie which are not covered sufficiently for the purchasers purpose., the op.ration or sintenc. Should further inforaation be desired or should particular nor to provide for every poecible contingency to be.et in connection with instillation, The.. instructions do not purport to cover all detaili or variation. in equip.ent the molded co\ er has been omitted. is similar to model HGA11A described in GEH 1793 except Each of the three HGA units are used in this relay line and panel drilling diagram is shown in Figure 2. internal connections diagram for this relay. The out of the three units are brought out to separate studs and relay has two sets of transfer contacts. The contacts drawout (M2) case. Each of the HGA units used in this armature relays mounted in a medium size double ended the operating coils are connected in parallel and brought out to two studs. Figure 1 of this supplement shows the Relay model HGA11E consists of three HGA type hinged DESCRIPTION These instructions plus those included in GEH 1793 form the instructions for this relay. I NTRODUCT ION MODEL 12HGAI1E(-)A TYPE HGA INSTANTANEOUS AUXILIARY RELAY Insert Rooklet GEH 1793 INSTRUCTIONS GEK- 2M42 I

2 FIG. 1 (02?6A6955-O) Internal Connections Diagram For The HGA1IE Relay (Front View) L. LOvER LOVvER RIGHT UNI N I T TOP 20 1 E) (EY- 6442

3 6E K ,-II IS 00oQ ( NUMBERING OF STUDS (FRONT VIEW) OUTLINE STUD VIEW SHOWING ASSEMBLY OF HARDWARE FOR SURFACE MTG. dn STEEL FNELS PANEL DRILLING FOR SEMI-FLUSH MOUNTING (FRONT VIEW) FNEL DRILLING FOR SURF4CE MOUNTING (FRONT VIEW) HG. 2 K-b2O9274-2) Outline And Panel Drilling Dimensions For The HOA11E Relay 3

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5 GENERAL ELECTRIC AUXILtAY GENERALJ ELECTRIC HGA11A, G, H, J, K, P, S, T, V, W, X TYPES INSTANTANEOUS AUXILJARY RELAY 0 INSTRUCTIONS GEH-1 793J

6 2 CONTACT CLEANING 8 PERIODIC CHECKS AND ROUTINE MAINTENANCE 7 RECEIVING, HANDLING AND STORAGE 7 RATINGS 4 CONSTRUCTION 7 PICKUP TEST 6 CHARACTERISTICS 6 TABLE 3 5 TABLE 4 5 AC COILS 5 DC COILS 5 TABLE 2 4 BURDENS 5 DESCRIPTION 3 PAGE CONTENTS TABLE 1 3 ACCEPTANCE TESTS 6 MECHANICAL ADJUSTMENTS 6 GUI RENEWAL PARTS 8

7 GEH INSTANTANEOUS AUXILIARY RELAY TYPES HGA11A, G, H, J, K, P. S, T, V. W, X DESCRIPTION where These relays are double pole, hinged armature relays, suitable for applications a high speed, relay, see Table 1. low energy device is required. For details of the HGA11 type TABLE 1 RELAY CASE AND MOUNTING CONTACT ARRANGEMENT HGA11A BACK CONNECTED WITH COVER, SURFACE DPDT CONTACT ARRANGEMENT MOUNTED RELAY SEE FIGURE 3 SEE FIGURE? - HGA11A(-)F SIMILAR TO HGA11A, EXCEPT WITH GLASS SIMILAR TO HGA11A FRONT COVER AND PROVISION FOR SEMI-FLUSH MOUNTING SEE FIGURE 4 - HGA11A(-)G SIMILAR TO HGA11A, EXCEPT WITH FRONT COVER SEE FIGURE 3 GLASS SIMILAR TO HGA11A HGA11A( )N SIMILAR TO HGA11A AND INSPECTED BY NAVY - SEE FIGURE 3 SIMILAR TO HGA11A HGA11G FRONT CONNECTED WITH COVER FOR FRONT MOUNTING SEE FIGURE 8 SIMILAR TO HGA11A HGA11H FRONT CONNECTED, SURFACE MOUNTED, AND SIMILAR TO HGA11A IS AVAILABLE WITHOUT COVER ONLY SEE FIGURE 7 - HGA11J FRONT CONNECTED WITH COVER FIGURE 5. - SEE SIMILAR TO HGA11A HGA11K FRONT CONNECTED WITHOUT COVER, BUT WITH SIMILAR TO HGA11A PROVISIONS FOR FRONT MOUNTING SEE FIGURE 6 HGA11P FRONT CONNECTED WITH COVER, CONTACTS SEE FIGURE PALLADIUM SIMILAR TO HGA11A 5. - continued... 3

8 RELAY CASE AND MOUNTING CONTACT ARRANGEMENT FOR FRONT MOUNTING - 4 RATINGS TABLE 2 ratings (non-inductive circuits) for the various voltages are listed in the Table 2. rating is 12 amperes continuously or 30 amperes for one minute. The interrupting The HGA11 relays are available for coil ratings for standard voltages up to 575 The current closing rating of the contacts is 30 amperes. The current carrying available with coil current ratings up to five amperes. volts for 25, 50 or 60 cycles, and up to 250 volts DC. The DC relays are also CONTACTS - SEE FIGURE 6 COVER COVER CLIPS - SEE SEE FIGURE 9 FIGURE 8 SEE HGA11S FRONT CONNECTED WITH COVER, PROViSIONS SIMILAR TO HGA11A FIGURE 4 TABLE 1 (cont d) GEH AC DC BREAK BREAK AC DC BREAK BREAK SINGLE DOUBLE SINGLE DOUBLE CIRCUIT VOLTS TYPE HGA CIRCUIT VOLTS TYPE HGA CONTACT CONTACT onmtrrjrr HGA11X SIMILAR TO HGA11K, BUT WITH PALLADIUM SIMILAR TO HGA11A HGA11W FRONT CONNECTED WITHOUT COVER, BUT WITH SIMILAR TO HGA11A FIGURE 7 FLUSH MOUNTING - FRONT COVER AND PROVISION FOR SEMI FIGURE 2 HGA11V( )F SIMILAR TO HGA11V EXCEPT WITH GLASS SIMILAR TO HGA11A SEE SEE FIGURE 3 MOUNTED RELAY, PALLADIUM CONTACTS - HGA11V BACK CONNECTED WITH COVER, SURFACE SIMILAR TO HGA11A SEE HGA11T FRONT CONNECTED WITH SHOCK RESISTANT SIMILAR TO HGA11A

9 Burden data br DC coils is shown in Table 3. DC COILS B U RDENS 5 Continued () VOLTS HERTZ +10% +10% +10% +10% +10% +10% -rlo% Coil. RAT[NG RDC RDO XDO ZDO RPU XPU ZPU AC COIL BURDENS TABLE 4 Z is the impedance of the relay in picked-up condition. Z1() is the impedance of the relay in dropout condition. designated as RPU and XPU. The resistive and inductive parts of impedaicc of coils under picked-up conditions are X1.() is the inductive impedance when the coil is energized, but the relay is not picked up. R1)() is the AC resistance of a coil when AC power is flowing through the coil, but the RJ), is resistance of a coil as measured with an ohmmeter, bridge, etc. Certain quantities should he defined before giving burden data for AC coils: relay is not picked up. AC COILS VOLTS +10% WATTS AMPS +10% WATTS VOLTAGE-RATED RELAYS AMP-RATED RELAYS RESISTANCE RESISTANCE DC COIL BURDENS TABLE 3 GEH-1 793

10 TABLE 4 (Cont d) 6 coil is energized, a magnetic flux flows through the armature pole piece and PICKUP TEST volts or DC amps or 60 percent of rated DC volts. that gives the highest value of pickup without exceeding 80 percent of its rated AC The Type HGA11 is a hinged armature type, high speed auxiliary relay. When the The spring should be in the front hole of the anchor pin and the armature groove the bottom inside surface of the cover for all back connected relays with cover. A operates and seals firmly against the pole piece. It is adjusted by means of the Pickup is defined as the minimum voltage or current at which the armature There should be at least 1/32 inch clearance between the armature tailpiece and This is determined by operating the armature by hand and checking that there is at never be more than 1/32 inch. This also applies to the b contacts. There should be at least 1/16 inch wipe on normally closed b contacts and inch of each other, i.e., with one contact just making, the gap of the other should When the armature is operated by hand, a contacts should make within 1/32 have made. least 1/16 inch movement of the top edge of the contact carrier after the contacts ACCEPTANCE TESTS be used to make or break auxiliary circuits. armature. These auxiliary contacts can be normally open or normally closed, and can CHARACTERISTICS attracts the armature. Two auxiliary contacts are mechanically coupled to the VOLTS HERTZ +10% +10% +10% +10% +10% +10% +10% MECHANICAL ADJUSTMENTS normally open a contacts, as measured at the top of the moving contact carrier. COIL RATING RDC RDO XDO 7D0 RPU Xp Zp special cover with cutouts in the sides is available to check this clearance. control spring that is fastened between the anchor pin and the armature tailpiece. AC COIL BURDENS GEH 1793

11 * percent of rating when cold. GEH 1793 * *Jndjcates Revision 7 checks will vary depending upon environment, type of relay and the user s experience under ACCEPTANCE TESTS should be checked at an interval of from one to two years. important that a periodic test program be followed. The interval between periodic the test interval best suited to his individual requirements, the points listed with periodic testing. Until the user has accumulated enough experience to select In view of the vital role of relays in the operation of a power system, it is PERIODIC CHECKS AND ROUTINE MAINTENANCE removed, and cause trouble when operating the relay. matter that collects on the outside of the case could get inside when the cover is cartons in a place that is free from moisture, dust and metallic chips. Foreign If the relays are not to be installed immediately, store them in their original of the parts are damaged nor the adjustments disturbed. Reasonable care should be exercised in unpacking the relay in order that none promptly notify the nearest General Electric Apparatus Sales Office. handling is evident, file a damage claim at once with the transportation company and relay, examine it for damage sustained in transit. If damage resulting from rough cartons designed to protect them against damage. Immediately upon receipt of a RECEIVING, HANDLING AND STORAGE These relays, when not included as part of a control panel will be shipped in of electrically separate, but mechanically coupled normally closed contacts, or between a pair of normally open contacts. Cover spring clips maintain spring force voltage. The function of the voltage barrier is to avoid flashover between a pair against the cover to hold the cover in position. in Figure 10. The control spring is used for adjusting the pickup and dropout The HGA11 is a molded case relay. The various parts of the relay can be seen CONSTRUCTION a contacts and 10 grams + 10 percent on b contacts. The wipe on HGA11 relays exerts a contact pressure of 35 grams + 10 percent on percent. For DC relays, the pickup and dropout voltages increase by 5 to 10 percent. hours) at rated voltage, the pickup and dropout voltages increase by 3.5 to 7.5 After AC relays have been continuously energized for a few hours (minimum four rating at rated frequency. The DC voltage relays are adjusted to pick up at The AC voltage or DC current relays are adjusted to pick up at percent of

12 When ordering renewal parts, address the nearest Sales Office of the General 8 complete model number of the relay for which the part is required. Electric Company, specify quantity required, name of the part wanted, and the replace any that are worn, broken, or damaged. Sufficient quantities of renewal parts should be carried in stock to promptly RENEWAL PARTS any kind should not be used to clean relay contacts. cleaning the actual points of contact. Knives, files, abrasive paper or cloth of it will clean off any corrosion thoroughly and rapidly. Its flexibility ensures superfine file. The polishing action is so delicate that no scratches are left, yet A flexible burnishing tool should be used for cleaning relay contacts. This is CONTACT CLEANING a flexible strip of metal with an etched roughened surface, resembling in effect a GEH-1793

13 I I Figures 1 and 2 (0104A8573-O) Internal Connections Diagram for Types Figure 1 Figure 2 :: (I2) I 2. OUTLINE 3 (2) - 1O 32 THREAD ili 4, 21 J_rr I I GEH I I DOTTED LINES FOR HGA11K ONLY TOP OF RELAY 2 1 (2 RDLES) (2L$). a 1 E*?ILL HGA11K ONLY PANEL DRILLING INTERNAL CCNNECTIONS (FRONT VIEV) (FRONT VIEW) HGA11A, G, H, J, K, P, S, T, V, W, and X Relays 9

14 I F / I I- I- 1 1 I. (8 HOLES) -4 A I :7- I 1 (0 TOP GE[I 1793 klndicates Revision 10 Types HGA11A(-)G, HGA1IA(-)N and HGA11V Relays * Figure 3 (K ) Outline and Panel Drilling Dimensions for the PANEL DRILLiNG (FRONT VIEW) STEEL 9116 I 3/8 J INSULATING 7/ /16 TYPE (W PANEL 1 OF RATING HGCIIA DOES NOT USED RAISED TO 60O (DcoR SO (AC CONTACT 4. 4ISNOT USED UNLESS PICKUP IS = WITH HGAI4A.14J,I4K,14N,17A CONTACT INTERNAL CONNECTIONS BACK VIEW) 4% (2 KLES)-E DRILL RE LAY 1 I OUTLINE REJ.*DVE cover SPACE REQUIRED TO

15 *Jndicates Revision 11 Type HGA11A( )F Relay * Figure 4 (0104A8551 2) Outline and Panel Drilling Dimensions for the FpcT YIEW (AC) OF RATING. IS RAISED TO 60$ (DC) OR HO$ PAI4EL ORILLNG IS OT USED UNLESS PICKUP INTERNAL CO1S. WITH (A14A, ha CONTACT 4 BACK VIEW -o 7 (2wOLES) 4-4 OW-It NC GEH 1793

16 1? (BACK VIEw) - TPQFRLLAL! SPIFED INTERNAL CONNECTIONS SPACE REQUIRC TO ROYE 0.2 OVER INJLATION COVER THICKNESS IS NOTE: WIRE SIZE ODES NOT EXCEED UNLESS PANEL 7 1 -rn THREAD GEH-1793 far Types HGA11J, HGA11P Relays Figure 5 (K ) Outline and Panel Drilling Dimensions (FRONT VIEW) PANEL DRILLING 88 2H0LES) I 5 DRILL OUTLINE 16 III 1II

17 (2 HOLES).1695 (*1) iro for Types HGA11K, 1-IGA11X Relays Figure 6 (K ) Outline and Panel Drilling Dimensions (FRONT VIEW) INTERNAL CONNECTIONS < OUT L NE L 2 H 4 C) 0 0 * 00 1 (3EH- 1793

18 14 for Types HGA11H, HGA11W Relays Figure 7 (K ) Outline and Panel Drilling Dimensions (FRONT VIEW) (FRONT VIEW) PANEL DRILLING INTERNAL CONNECTIONS (2 HOLES) Jv DRILL TOF OF RELAY OUTL NE 2 THREAD GEH 1793

19 ,1 (2 HOLES).187 DIA ThD. GEH-1793 for Types HGA11G, HGA11S Relays Figure 8 (0165A1757 2) Outline and Panel Drilling Dimensions (FRONT VIEW) INTERNAL CONNECTIONS B RE14DVE COVER SPACE REQUIRED TO

20 16 for the Type HGA11T(-)A Relay SPACE REQUIRED TO R4OVE COVER O.2 OVER INSUlATION NOTE: WIRE SIZE DOES NOT CCEED (BACK view) INTFIRiAL CONECTIONS (2 HOLES) 4 S - DRILL N TOP OF RElAY OUTLINE - 7 -Il. // GEH 1793 Figure 9 (0127A9568-O) Outline and Panel Drilling Dimensions PANEL DRILLING (PEoIT VIEW) * 2 2 i I SPECIFIED THICSS IS 00 UNLESS PAIIEL I 4± ICc T\

21 POLE GEl-f Figure 10 ( ) Typical HGA Relay Removed from Case FLEXIBLE LEAD CONTROL SPRING V ARMATURE - HINGED CLIP COVER SPRING _ J I 1 :J ; - - PIECE CONTACTS FOR MOVING SPRING LEAVES BARRIER VOLTAGE CLOSED, h NORMALLY CONTACT CONTACT NORMALLY BACK-CONNECTED RELAYS CONNECTION STUDS FOR

22 GE Power Management 215 Anderson Avenue Markham, Ontario Canada L6E 1B3 Tel: (905) Fax: (905)