ABB CVX Instruction Leaflet Download | Manualshive

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Summary of Contents for CVX

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Page 2: ...Relay Front View Out of Case POTENTIOMETER R3 CIRCLE ADJUST RESTRAINT ELECTROMAGNET TIME DIAL Figure 2 CVX 1 Relay Rear View Out of Case OPERATING ELECTROMAGNET TELEPHONE RELAY T2 ADJUSTABLE RESISTOR R4 BALANCE ADJUST TELEPHONE RELAY T1 VOLTAGE SENSING TELEPHONE RELAYS V1 V2 ...

Page 3: ...he main pole flux The out of phase fluxes thus produced in the disc gap causes a contact opening torque 2 3 TIME DELAY CIRCUIT The time delay circuit consists of two dc telephone type relays This intentional time delay circuit applies to the CVX 1 contact opening only and is designed to override any possible contact chatter during a seismic event 2 4 AC TELEPHONE RELAYS V1 V2 CVX 1 ONLY The teleph...

Page 4: ...ircuits of the relay is as follows The burden of the CVX relay with rated voltage applied to one circuit is as follows For the CVX 1 relay additional burden of each tele phone relay at 120 Volts is as follows Volt Amperes 10 62 Power Factor 0 64 4 0 RELAY SETTINGS As shipped from the factory the relays are calibrated for a 40 degree circle Other operating circles from 40 to 60 can be obtained by a...

Page 5: ...the various time dial positions in line with the index mark will give operating times as shown on the time curve 6 1 2 Operating Circle Connect the CVX relay per the test diagram Figure 15 CVX 1 relays should be connected in a similar manner to correspond with the wiring of the particular style CVX 1 using Figure 16 The contacts should just close under the following condition When V1 and V2 are eq...

Page 6: ...ontacts just close with V1 and V2 equal to rated voltage Note the angle at which the con tacts just close c Adjust the phase shifter in the leading direction until the contacts just close with V1 and V2 equal to rated voltage If the latter angle is not within 1 degree of the former angle adjust R4 the top right hand resistor rear view until the two angles are within 1 degree of each other 7 5 SPRI...

Page 7: ...ircle sym metrically about the zero degree line See Centering Circle section 6 4 for procedure The time for the operation will be as shown in the time curves of Fig ure 10 8 0 RENEWAL PARTS Repair work can be done most satisfactorily at the factory However interchangeable parts can be fur nished to the customers who are equipped for doing repair work When ordering parts always give the complete na...

Page 8: ...CVX Synchro Verifier Relay in type FT 21 Case with External Voltage Relays 9676A78 Pg 11 Figure 7 External Schematic of the Type CVX 1 Synchro Verifier Relay in Type FT 21 Case 9676A70 Pg 12 Figure 8 Curve Typical Voltage Angle characteristics 184A997 Pg 12 Figure 9 Curve Typical Time Phase Angle Curves 184A998 Pg 13 Figure 10 Curve Operating Time Variations 184A999 Pg 14 Figure 11 Curve Maximim S...

Page 9: ...41 682 11 9 Sub 1 9676A63 Figure 3 Internal Schematic CVX Synchro Verifier Relay with Isolated Potential Circuits ...

Page 10: ...CVX and CVX 1 Synchro Verifier Relays 10 Sub 1 9676A30 Figure 4 Internal Schematic Type CVX 1 Synchro Verifier Relay in Type FT 21 Case with HBDL HLDB Outputs Isolated from CVX 1 Contact and with Common Potential Circuits ...

Page 11: ...l Schematic of Type CVX Synchro Verifier Relay with Isolated Potential Circuits Sub 1 9676A69 Figure 6 External Schematic of Type CVX Synchro Verifier Relay with Isolated Potential Circuits and External Sub 1 9676A78 Voltage Relays ...

Page 12: ...e 7 External Schematic of Type CVX 1 Synchro Verifier with HBDL HLDB Outputs Isolated from CVX 1 Contact and with Common Potential Circuits 184A997 Sub 1 Figure 8 Typical Voltage Angle Characteristic of CVX and CVX 1 for Various Closing Angle Settings Rated Voltage on One Circuit ...

Page 13: ...41 682 11 13 Sub1 184A998 Figure 9 Typical Time Phase Angle Curves of CVX and CVX 1 Relays Rated Voltage on Both Circuits Number 11 Time Dial Setting ...

Page 14: ...1 682 11 Type CVX and CVX 1 Synchro Verifier Relays 14 Sub 2 184A999 Figure 10 Operating Time Variations with Changes in Time Dial Settings Rated In Phase Voltage on Both Circuits 20 40 and 60 degree Circle ...

Page 15: ...41 682 11 15 Figure 11 Approximate Maximum Slip Frequency for which Operation Occurs Rated Voltage Both Sides Sub 1 185A123 ...

Page 16: ...hro Verifier Relays 16 Figure12 Typical CVX CVX 1 Reset Times Return of Contact to Backstop Position with one Voltage at Rated TYPICAL CVX RESET TIME Voltage and the Other Suddenly Reduced from Rated in Phase to Zero Voltage Sub 1 185A123 ...

Page 17: ...ent Operating Circles V2 is Equal to Rated Voltage at Zero Phase Angle Figure14 Operating Times from the 11 Time Dial Position set for Different Operating Circles V1 and V2 areEqual to Rated Voltage at Zero Phase Angle Sub 1 471191 Sub 1 471192 ...

Page 18: ...I L 41 682 11 Type CVX and CVX 1 Synchro Verifier Relays 18 Figure 15 Test Diagram for CVX Synchro Verifier Relay with Isolated Potential Circuits Sub 1 1507B43 ...

Page 19: ...41 682 11 19 Figure 16 Test Diagram for Relay Type CVX 1 Synchro Verifier with Common Potential Circuits Sub 1 1507B44 ...

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