Quick Links
See also:
Instruction Manual
Related Manuals for GE IAV51A
Summary of Contents for GE IAV51A
- Page 1 GEH-12668 � . INSTRUCTIONS UNDERVOLTAGE AND OVERVOLTAGE RELAYS TYPES IAVSlA IAVS3A IAVS2A IAVS4A IAVSSA IN THE DRA WOUT CASE GENERAL ELECTRIC...
- Page 2 Cover Seal- Cradle element Bottom Outer latch--- - block block plug Type relay withdrawn from case Fig. IAVSIA These instructions do not purport to cover all details or variations in equipment nor to provide for every possible contingency to be met in connection with installation, operation or maintenance. Should further in formation be desired or should particular problems arise which are not covered sufficiently for t h e purchas...
- Page 3 VOLTAGE RELAYS TYPE IAV General Note: Care must be taken to insert the connecting plug slowly on relays that have contacts which are These relays are of the induction disk construction. · closed when de-energized but open under normal The disk is actuated by a potential operating coil on operating conditions.
-
Page 4
Type IAV Undervoltage and Overvo/tage Relays GEH-12668 "--· 2 20 Per cent of minimum operating voltage IAVSIA IAV52A Time-voltage
- Page 5 ��""' at which right contacts were set to close � Time to close right contacts when voltage is suddenly reduced from value equal to or greater than voltage r equired to close l e ft contact to values on the curve. Time to close left contacts when voltage suddenly increased from zero to the values on the curve.
- Page 6 Type JAV Undervolfage and Overvolfage Relays GEH-12668 . setting � � Per cent of closing voltage IAV54A IAVSSA Fig. Time-voltage curves for Types relays coils that take amperes or more at minimum through the contacts or the target and seal-in coil control voltage, provided the tripping current does of the protective relay.
Page 7: Installation
60-cycle Burdens Reasonable care should be exercised in unpacking the relay in order that none of the parts get injured 1 4 0 .3 4 0. 4 IAV51A or the adjustments disturbed. IAV52A 2. 4 .3 4 Storage If the relays are not to be installed immediately, 5.- Page 8 Type /AV Undervolfage and Overvoltage Relays GEH-12668 i of relay I " 4-28 " I" 2 �· _j �· (B) For Surface Mounting Panel Drilling View Front Fig. 5. Outline ancl panel drilling for relay Types IAVSIA, IAVS2A, IAV54A anciiAVSSA Voltage Settings minimum operating value on all relays listed except the IA VS3A which will be explained later.
- Page 9 Type IAV Undervoltage and Overvoltage Relays GEH-12668 Panel Opening For Flush Mounting View Front Surface Mounting Panel Drilling View Front Fig. Outline and panel drilling for relay Type IAV53A tacts close. Hence, simultaneous adjustments for the voltage is suddenly increased from a value below closing left and closing right must be made to obtain pickup to the value on the curve.
Page 10: Operation
A-c supply of correct frequency of correct A·c supply frequency Synchronous MF-2 timer type Synchronous timer type Fig. 12. Connectio.s for testing Types IAV51A anci1AV52A Fig. 13. Connections for testing Types IAV54A anciiAV55A relays, back view relays, back view...- Page 11 Fig. Front view of Type lA VSIA relay withclrawn from case Coi I m agnet and tap bl o ck assembly Disk and shaft screw case Fig. 15. Bade view of Type IAV51A relay withclrawn from...
Page 12: Maintenance
GEH-12668 Type IAV Undervoltage and Overvoltage Relays Maintenance Periodic Testing An operation test and inspection of the relay at These relays are adjusted at the factory and it is advisable not to disturb the adjustments. If, for any least once every six months are recommended. Test connections are shown in Fig.