ABB CV Series User Manual

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41-201.4H CV Voltage Relay Class 1E

24

Sub 2

1478B31

Sheet 2 of 2

Sub 2

1478B31

Sheet 1 of 2

Figure 22a: Typical External Schematic for Type CV Overvoltage or Undervoltage Relays

Figure 22b: Typical External Schematic for Type CV Overvoltage or Undervoltage Relays

Table of Contents

Figure 1: Type CV Relay Without FT11 Case2
Figure 2: 199 Volt Type CV-8 Relay With Adjustable Pickup Without FT11 Case2
Figure 3: 67 Volt Type CV-8 Relay with Adjustable Pickup without FT-21 Case2
Figure 4: Internal Schematic of Type CV Undervoltage or Overvoltage Relay in FT11 Case9
Figure 5: Internal Schematic of Type CV Over or Undervoltage Relay, Without ICS Unit, in FT11 Case10
Figure 6: Internal Schematic of Type CV Over or Undervoltage Relay, With ICS in Overvoltage Circu...10
Figure 7: Internal Schematic of Type CV Over or Undervoltage Relay, With ICS in Undervoltage Circ...11
Figure 8: Internal Schematic of Type CV Over or Undervoltage Relay, Without ICS, With O.I. Unit i...11
Figure 9: Internal Schematic of Type CV-8 Low Voltage Fixed Pickup in FT11 Case12
Figure 10: Internal Schematic of Type CV-8 Low Voltage Adjustable Pickup in FT21 Case12
Figure 11: Typical Time Curves for Type CV-8 Low Pickup Overvoltage Relay13
Figure 12: Typical Time Curves Type CV-8 Over Voltage Relay with Resistor Set for Maximum Pickup ...14
Figure 13: Typical Sensitivity vs. Frequency Curve for Type CV-8 Low Pickup Overvoltage Relay15
Figure 14: Typical Time Curves for Type CV-1 Long Time Undervoltage Relay16
Figure 15: Typical Time Curves for Type CV-2 Short Time Undervoltage Relay17
Figure 16: Typical Time Curves for Type CV-4 Long time Overvoltage Relay18
Figure 17: Typical Time Curves for Type CV-5 Short Time Overvoltage Relay19
Figure 18: Typical Time Curves for Type CV-6 Long Time Over or Undervoltage Relay20
Figure 19: Typical Time Curves for Type CV-7 Short Time Over or Undervoltage Relay21
Figure 20: Diagram of Test Connections for Type CV Undervoltage or Overvoltage Relay22
Figure 21: Diagram of Test Connections for Type CV Over or Undervoltage Relay23
Figure 22a: Typical External Schematic for Type CV Overvoltage or Undervoltage Relays24
Figure 23: Typical External Schematic for Type CV-8 Voltage Relay25
Figure 24: Outline and Drilling Plan for the Type CV Relay in the FT-11 Case27
Figure 25: Outline and Drilling Plan for the Type CV-8 Relay in the FT21 Case28
1.0 APPLICATIONS1
2.0 CONSTRUCTION and OPERATION1
- 2.1. Voltage Unit (CV)2
- 2.2. INDICATING CONTACTOR SWITCH UNIT (ICS)2
3.0 CHARACTERISTICS3
- 3.1. CV-1 and CV-2 Undervoltage Relays CV-4 and CV-5 Overvoltage Relays3
- 3.2. CV-6 and CV-7 Over or Undervoltage Relays3
- 3.3. Energy Requirements4
4.0 SETTINGS4
- 4.1. CV Unit4
- 4.2. CV-8 Settings4
- 4.3. Instantaneous Reclosing4
- 4.4. Indicating Contactor Switch (ICS)5
5.0 INSTALLATION5
6.0 ADJUSTMENTS5
- 6.1. Performance Check5
7.0 MAINTENANCE6
- 7.1. Calibration6
8.0 RENEWAL PARTS8
- Figure 22b: Typical External Schematic for Type CV Overvoltage or Undervoltage Relays24

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ABB CV Series Specifications

General

Output	SPDT, DPDT
Terminal Type	Screw Terminals
Mounting	DIN Rail
Electrical Life	100, 000 operations
Mechanical Life	10, 000, 000 operations

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