GE NGV29A Instructions Manual Download Page 1 | Manualshive

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Summary of Contents for NGV29A

Page 1: ...ith installation ope tion or maintenance Should further information be desi d or shouldparticular problems arise which ae not covecd 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 or...

Page 2: ... Characteristics 4 Burden 4 Construction 4 Receiving Handling and Storage 4 Electrical Tests 5 Drawout Relays Ceneral 5 Power Requirements Ceneral 5 Acceptance Tests 5 Seal in Circuit Test 5 Periodic Checks and Routine Maintenance 6 Contact Cleaning 6 Servicing 6 Renewal Parts 6 2 ...

Page 3: ... 48 125 or 250 VDC The relays are continuously rated at these voltages The L and R telephone relay contacts are continuously rated at 3 amperes and are capable of momentarily carrying 30 amperes at 250 VDC for tripping duty but should be interrupted by some other suitable means if the interrupting capability shown in Table I is exceeded TABLE I CONTACT INTERRUPTING ABILITY Volts Interruption Capab...

Page 4: ... latched into a drawout case when the relay is in operation but can be easily removed when desired To do this the relay is first disconnected by removing the connection plug that completes the electrical connections between the case block and the cradle block To test the relay in its case this connection block can be replaced by a test plug The relay case is suitable for either semi flush or surfa...

Page 5: ... both the relay and the external circuitry POWER REQUIREMENTS GENERAL Relays requiring DC control power should be tested using DC and not full wave rectified power Unless the rectified supply is well filtered many relays will not operate properly due to the dips in the rectified power Zener diodes for example can turn off during these dips As a general rule the DC source should not contain more th...

Page 6: ...cloth of any kind to clean relay contacts SERVICING Connect an adjustable rheostat of the value listed in Table III to stud 4 and stud 6 with the rheostat set for maximum ohms Apply rated voltage to studs 5 and 6 neither the L nor the R relay should operate Reduce the resistance of the rheostat until the left L relay picks up This should occur as listed below under Sensitivity in Table III Measure...

Page 7: ...1 R2 GEK 4 9896 Figure 1 8043268 NGV29A Relay Front View Out of Case 7 ...

Page 8: ...GEK 4 9896 TERM INAL Figure 2 8043269 DIODE 8OARD TERM1NAL 1 NCV29A Relay Rear View Out of Case 8 ...

Page 9: ...CEK 49896 FRMF _ OFERTING RM ARMTLIRE R ES D Li 4 SCFEw L__ LOCKNJT POLE P FoE Figure 3 8012106 Typical Telephone Relay Used in the NGV29A Relay F LEND SOiL OPERAT tO STCP 9 ...

Page 10: ...OWING ASSEMBLY OF HARDWARE FOR SURFACE MTG ON STEEL PANFLS Figure 4 K 6209271 81 Outline and Panel Drilling for the 0178A8900 Relay 6 625 168MM C 2 5 16 18 STUDS FOR SURFACE MTG 8 375 212MM 4 10 32 X 3 8 MTG SCREWS 1 0 32 STUBS 1 4 DRILL 4 HOLES 6MM 157MM 5 8 DRILL 2 HOLES i CUTIJUT 111MM CUTOUT MAY REPLACE DRILLE HOLES 1 156 29MM 218 5MM 843 72MM 5 687 14 4MM PANEL DRILLING FOR SEMI FLUSH MOUNTIN...

Page 11: ...NUN1ERS OENS 01 1S OHMS uF 0178A8900G 1 lOX 10K 15K 47 N V2 9AIA 0178A8900G 2 5K 5K 7 5K 47 NGV29A2A 017SA8900G 3 2K 2K 2 5K 47 INGvZ9A3A 1K 1K IK 47 INV29A4A 10 R Figure 5 0207A7880 3 Internal Connection Diagram for the NGV29A Relay 2 4 6 B ii ...

Page 12: ...7 5K 15K 250 10K OK IK 30K S RELA i PICKUP I 7 TO 2 50 MA RESISTANCE 7 EOHMS TO COILS IN SERIES IIO U OP AL I CVCT 07 I UD IT IS SSA1T TO U AY1 GIOUWD PAUL HAS 1 AD g IS 1TIWAL IT szAL ta UT SWITCI CThCT S TO C13 AUD CtkCTS AZ lISZT lILA Figure 6 0207A7879 3 External Connection Diagrata for the NGV29A Relay c EUS 12 ...

Page 13: ...Y BRUSH CONNECTING PLUG TRAVELS 1 4 INCH BEFORE ENGAGING THE MAIN BRUSH ON THE TERMINAL BLOCK Vigure 7 8025039 Cross Section of Drawout Case Showing Position of the Auxiliary Brush MAIN BRUSH CONNECTING BLOCK AUXILIARY BRUSH 1 TERMINAL BLOC SHORTING BAR 13 ...

Page 14: ...GE Power Management 215 Anderson Avenue Markham Ontario Canada L6E 1B3 Tel 905 294 6222 Fax 905 201 2098 www ge comlindsyslpm ...

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