ABB CV-1, Instruction Leaflet

Page 1: ...cating con tactor switch ICS The principal component parts of the relay and their location are shown in Figures 1 2 and 3 The Type CV 8 relay in addition to the above compo nents also has a capacitor...

Page 2: ......

Page 3: ...e the relay contacts At this value of voltage the moving contacts will leave the backstop of the dial and move to close the front contacts Normal operation of the two relays is such that the CV 1 and...

Page 4: ...relay with a 67 volt continuous and a 16 to 40 volt relay with a con tinuous of 199 volts is also available However the operate times of the adjustable CV 8 relay will differ from Figure 10a and will...

Page 5: ...ted out Timing tests should be conducted after the resistor is used to change the pickup This will insure proper coordination time for the desired pickup setting Figure 10b applies when the resistor i...

Page 6: ...11 Case Figure 7 Internal Schematic Of The Type CV 8 67 Volt Relay In Type FT 21 Case Figure 8 Internal Schematic Of The Type CV 8 199 Volt Relay In Type FT 21 Case With Adjustable Pickup Figure 9 Int...

Page 7: ...r double trip relay the follow on the stationary contacts should be approximately 1 64 b For relays identified with a T located at lower left of stationary contact block the index mark on the movement...

Page 8: ...of the danger of embedding small particles in the face of the soft silver contact and thus impair ing the contact 8 CALIBRATION Use the following procedure for calibrating the relay if the relay has...

Page 9: ...able 1 b CV 4 and CV 5 Overvoltage Relay CV 8 Low Pickup Overvoltage Relay Apply the indicated voltage of Table 1 and mea sure the operating time Adjust the permanent magnet keeper until the operating...

Page 10: ...I L 41 201S 10 Figure 10a Typical Time Curves Of The Type CV 8 Low Pickup Overvoltage Relay Curve 619537...

Page 11: ...I L 41 201S 11 Figure 10b Typical Time Curves For Type CV 8 Overvoltage Relay With Resistor Set For Maximum Pickup Curve 619541...

Page 12: ...Time Undervoltage Relay Curve 418251 TIME DIAL SETTING 11 10 9 8 7 6 5 4 3 2 1 1 2 TYPICAL TIME CURVES TYPE CV 1 UNDERVOLTAGE RELAY 50 60 HERTZ PERCENT TAP VALUE VOLTAGE 0 10 20 30 40 50 60 70 80 90 1...

Page 13: ...V 2 Short Time Undervoltage Relay Curve 418250 TYPICAL TIME CURVES TYPE CV 2 UNDERVOLTAGE RELAY 50 60 HERTZ TIME DIAL SETTING 1 2 1 2 3 4 5 6 7 8 9 10 11 32 30 28 26 24 22 20 18 16 14 12 10 8 6 4 2 0...

Page 14: ...I L 41 201S 14 Figure 13 Typical Time Curves Of The Type CV 4 Long Time Overvoltage Relay Curve 406C881 PERCENT OF TAP VALUE VOLTAGE...

Page 15: ...I L 41 201S 15 Figure 14 Typical Time Curves Of The Type CV 5 Long Time Overvoltage Relay Curve 406C884...

Page 16: ...I L 41 201S 16 Figure 15 Typical Time Curves Of The Type CV 6 Long Time Over And Undervoltage Relay Curve 406C882...

Page 17: ...I L 41 201S 17 Figure 16 Typical Time Curves Of The Type CV 7 Short Time Over And Undervoltage Relay Curve 406C883...

Page 18: ...I L 41 201S 18 Figure 17 Typical Sensitivity vs Frequency Curve For Type CV 8 Low Pickup Overvoltage Relay Curve 418270 Sub 2...

Page 19: ...I L 41 201S 19 Figure 18 Diagram Of Test Connections Of The Type CV Undervoltage Relay Figure 19 Diagram Of Test Connections Of The Type CV Overvoltage Relay 183A024 Sub 2 183A023 Sub 2...

Page 20: ...A ABB Power T D Company Inc 4300 Coral Ridge Drive Coral Springs Florida 33065 954 752 6700 FAX 305 345 5329 Figure 20 Outline And Drilling For FT 11 Case Used For Projection And or Semi flush Case 5...