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Summary of Contents for CA-16

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Page 2: ...41 337 31 C 2 Figure 1 CA 16 Front View Figure 2 CA 16 Rear View ...

Page 3: ...ed from causing contact bouncing A micarta disc is fastened to the bottom of the guide rod by two small nuts Its position determines the pick up current of the ele ment The auto transformer is designed to saturate at high values of current to limit the amount of current to the contactor switch 2 3 1 Indicating Contactor Switch Unit ICS The dc indicating contactor switch is a small clapper type dev...

Page 4: ...g the lead located in front of the tap block to the desired setting by means of a screw connection 4 2 Trip Circuit Constants Indicating Contactor Switch ICS 0 2 amp rating 8 5 ohms dc 1 0 amp rating 0 37 ohms dc 2 0 amp rating 0 10 ohms dc ENERGY REQUIREMENTS Burden of each restraint coil at 5 amperes VOLT AMPERES POWER FACTOR 75 7 Continuous Rating 14 amperes 1 second rating 460 amperes Burden o...

Page 5: ...onnec tions of Figure 8 CA 16 17 0 amperes 7 Check each individual restraint winding by applying 50 amperes to each winding Apply sufficient operat ing current to the operating circuit until the contacts just close The operating current should be CA 16 3 9 to 5 1 amperes C Time Curve Apply 20 amperes to terminals 12 and 13 of the relays The contacts should close in the following times CA 16 58 to ...

Page 6: ... may be removed and the tab holding the target reformed slightly if necessary However care should be exercised so that the target will not drop with a slight jar If the pickup is low the front cover must be removed and the leaf springs on each side bent outward equally 7 6 Sensitive Fault Detector Loosen the lock nut at the top of the element and run the core screw down until it is flush with the ...

Page 7: ...41 337 31 C 7 Figure 3 Internal Schematic of the Type CA 16 Bus Relay Sub 1 3532A95 ...

Page 8: ...41 337 31 C 8 Figure 4 Typical Time Curves of the CA 16 Differential Relay Sub 1 537956 ...

Page 9: ...41 337 31 C 9 Figure 5 Typical Burden Characteristics of the Types CA 16 and CA 26 Relays Curve 537957 ...

Page 10: ...41 337 31 C 10 Figure 6 External Schematic of One Set of Type CA 16 Relays for the Protection of a Three and Four Circuit Bus Sub 5 187A424 ...

Page 11: ...41 337 31 C 11 Figure 7 External Schematic of the Type CA 16 Relays for Protection of Six Circuit Bus with Three Feeder Groups Sub 5 187A425 ...

Page 12: ...41 337 31 C 12 Figure 8 Diagram of Test Connections for the CA 16 Relay Sub 4 187A426 ...

Page 13: ...41 337 31 C 13 Figure 9 Percentage Slope Curve of the CA 16 Relay with One Restraint Winding Sub 1 849A450 ...

Page 14: ...41 337 31 C 14 Figure 10 Percentage Slope Curve of the CA 16 Relay with Six Restraint Windings in Series Sub 2 849A343 ...

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Page 16: ...ABB Inc 4300 Coral Ridge Drive Coral Springs Florida 33065 Telephone 1 954 752 6700 Fax 1 954 345 5329 www abb com substation automation IL 41 337 31 Revision C ABB ...

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