Related Manuals for GE HFA54
Summary of Contents for GE HFA54
- Page 1 GEI-68720G INSTRUCTIONS MULTI-CONTACT AUXILIARY RELAY TYPE HFA54 GE Meter an Control �� 20 5 Great Val Parkway 55 - 071 5 Malvern, PA...
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Page 2: Table Of Contents
GEI-68720 CONTENTS DESCRIPTION ........APPLICATION ......RATINGS •... -
Page 3: Description
GEI-68720 MULTI - CONTACT AUXILIARY RELAY TYPE HFA54 DESCRIPTION The HFA54 relays are instantaneous, hinged - armature, multi - contact, electric reset, auxiliary relays. Some of the models are also available with a hand reset feature in addition to the electric reset feature. -
Page 4: Characteristics
(6) circuit - closing contacts (code 60) . However, the HFA54 D and HFA54 K relays are available with contact code 33 only, as given in Table V. The general characteristic of HFA54 relays are summarized in Table II. - Page 5 GEI-68720 TABLE III (HFA54B, C, E) E NO. CONTACT ARRANGEMENl POS ITION NO. a =Normally Open b = Normally Closed + = Used to Open Reset Coil Circuit a 1 = Normally Open, Long Wipe b 1 = Normally Closed, Long Wipe TABLE IV (HFA54H, J, L ) CODE NO.
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Page 6: Burdens
GEI-68720 The HFA54 N is similar to the HFA54M except that it has an additional feature of hand reset. The internal connections diagram of the HFA52�t and HFA54 N shows an external capacitor connected in parallel with the operating coil and an external resistor connected in series with the operating coil and external capacitor. -
Page 7: Receiving, Handling And Storage
GEI-68720 *TABLE I X RESET COIL RESISTANCE RESISTANCE EXTERNAL OPERATING VOLTS COIL VOLTS OF RESET OF OPER. RESISTOR CAPACITOR COIL OHMS** COIL OHMS** OH�1S** 11 F** 2, 000 74 0 8, 000 8, 000 230/60H z 52. 8 1650 230/60H z 230/60HZ 52. -
Page 8: Servicing And Adjustments
GEI-68720 SERVICING AND ADJUSTMENTS CONTACT CLEANING In cleaning fine silver contacts a flexible burnishing tool should be used. This consists of a flexible strip of metal with an etched, roughened surface, resembling, in effect, a superfine file. The polishing action is so delicate than no scratches are left, yet corroded material will be removed rapidly and thoroughly. -
Page 9: Pickup
GEI-68720 To check performance, turn the stop screw in until one contact continuity lamp is lit. Turn stop screw in an additional 1/2 turn and all continuity lamps should be lit. Back off the stop screw to obtain at least 1/4 inch contact gap. Insert a 7/32-inch gage between any of the normally-open moving and stationary contacts and turn the stop screw clockwise until the continuity lamp lights. - Page 11 GEI-68720 FIG. 2 (8025781) HFA54 RELAY, FRONT CONNECTED, SURFACE MOUNTED (FRONT VIEW)
- Page 13 EACH <DNTACT CONVERT! B LE ONLY - ACCORD! NG TO CONTACT AHRANGEMENT CODE. FIG. 4 ( 0104 A8528-5) INTERNAL CONNECTIONS OF HFA54 B, HFA54 C, HFA54 0, and HF54 E RELAYS (BACK VIEW) RESET C OIL INTERNAL CONNECTIONS BACK VIEW FIG.
- Page 18 GEI-68720 .8 1� ±. 03 1 {Z ) ./ 8.9 H C·t. . E ± 3.00 .4 .3 8 ±.0� 3 T"\-i D • 12 - 2 4 �� "' �- � • � � � ..'"- � 1_ _ -f- - FIG.
- Page 24 Meter and Control Business Department General Electric Company Protection and Control 205 Great Valley Parkway Malvern, Pennsylvania 19355-0715...